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Benefits and uses of pineapple

Joy PP. 2010. Benefits and uses of pineapple. Pineapple Research Station (Kerala Agricultural University),
Vazhakulam-686 670, Muvattupuzha, Ernakulam District, Kerala, India.
Benefits and Uses of Pineapple
Dr. P. P. Joy, Associate Professor & Head, Pineapple Research Station (Kerala Agricultural University), Vazhakulam-686 670,
Muvattupuzha, Ernakulam, Kerala, India. Tel. & Fax: +914852260832, Email:, Web:
Functional benefits
Pineapple (Ananus comosus, Bromeliaceae) is a wonderful tropical fruit having exceptional
juiciness, vibrant tropical flavour and immense health benefits. Pineapple contains considerable
calcium, potassium, fibre, and vitamin C. It is low in fat and cholesterol. Vitamin C is the body's
primary water soluble antioxidant, against free radicals that attack and damage normal cells. It is
also a good source of vitamin B1, vitamin B6, copper and dietary fibre. Pineapple is a digestive aid
and a natural Anti-Inflammatory fruit. A group of sulfur-containing proteolytic (protein digesting)
enzymes (bromelain) in pineapple aid digestion. Fresh pineapples are rich in bromelain used for
tenderizing meat. Bromelain has demonstrated significant anti-inflammatory effects, reducing
swelling in inflammatory conditions such as acute sinusitis, sore throat, arthritis and gout and
speeding recovery from injuries and surgery. Pineapple enzymes have been used with success to
treat rheumatoid arthritis and to speed tissue repair as a result of injuries, diabetic ulcers and general
surgery. Pineapple reduces blood clotting and helps remove plaque from arterial walls. Studies
suggest that pineapple enzymes may improve circulation in those with narrowed arteries, such as
angina sufferers. Pineapples are used to help cure bronquitis and throat infections. It is efficient in
the treatment of arterioscleroses and anaemia. Pineapple is an excellent cerebral toner; it combats
loss of memory, sadness and melancholy. Pineapple fruits are primarily used in three segments,
namely, fresh fruit, canning and juice concentrate with characteristic requirements of size, shape,
colour, aroma and flavour.
Potential Anti-Inflammatory and Digestive Benefits
Bromelain is a complex mixture of substances that can be extracted from the stem and core fruit of
the pineapple. Among dozens of components known to exist in this crude extract, the best studied
components are a group of protein-digesting enzymes (called cysteine proteinases). Originally,
researchers believed that these enzymes provided the key health benefits found in bromelain, a
popular dietary supplement containing these pineapple extracts. In addition, researchers believed
that these benefits were primarily limited to help with digestion in the intestinal tract. However,
further studies have shown that bromelain has a wide variety of health benefits, and that many of
these benefits may not be related to the different enzymes found in this extract. Excessive
inflammation, excessive coagulation of the blood, and certain types of tumor growth may all be
reduced by therapeutic doses of bromelain when taken as a dietary supplement. Studies are not
available, however, to show these same potential benefits in relationship to normal intake of
pineapple within a normal meal plan.
Bromelain extracts can be obtained from both the fruit core and stems of pineapple. Potentially
important chemical differences appear to exist between extracts obtained from the stem versus the
fruit core. However, the practical relevance of these differences is not presently understood. Most of
the laboratory research on bromelain has been conducted using stem-based extracts, however.
Joy PP. 2010. Benefits and uses of pineapple. Pineapple Research Station (Kerala Agricultural University),
Vazhakulam-686 670, Muvattupuzha, Ernakulam District, Kerala, India.
Although healthcare practitioners have reported improved digestion in their patients with an
increase in pineapple as their "fruit of choice" within a meal plan, there are no published studies that
document specific changes in digestion following consumption of the fruit (versus supplementation
with the purified extract. However, it is suspected that the fruit core will eventually turn out to show
some unique health-supportive properties, including possible digestion-related and anti-
inflammatory benefits.
Antioxidant Protection and Immune Support
Vitamin C is the body's primary water-soluble antioxidant, defending all aqueous areas of the body
against free radicals that attack and damage normal cells. Free radicals have been shown to promote
the artery plaque build-up of atherosclerosis and diabetic heart disease, cause the airway spasm that
leads to asthma attacks, damage the cells of the colon so they become colon cancer cells, and
contribute to the joint pain and disability seen in osteoarthritis and rheumatoid arthritis. This would
explain why diets rich in vitamin C have been shown to be useful for preventing or reducing the
severity of all of these conditions. In addition, vitamin C is vital for the proper function of the
immune system, making it a nutrient to turn to for the prevention of recurrent ear infections, colds,
and flu.
Manganese and Thiamin for Energy Production and Antioxidant Defenses
Pineapple is an excellent source of the trace mineral manganese, which is an essential cofactor in a
number of enzymes important in energy production and antioxidant defenses. For example, the key
oxidative enzyme superoxide dismutase, which disarms free radicals produced within the
mitochondria (the energy production factories within our cells), requires manganese. Just one cup of
fresh pineapple supplies 128.0% of the DV for this very important trace mineral. In addition to
manganese, pineapple is a good source of thiamin (Vitamin B1) that acts as a cofactor in enzymatic
reactions central to energy production.
Protection against Macular Degeneration
Fruits are more important than carrots for eye sight. Data reported in a study published in
the Archives of Ophthalmology indicates that eating 3 or more servings of fruit per day may lower
the risk of age-related macular degeneration (ARMD), the primary cause of vision loss in older
adults, by 36%, compared to persons who consume less than 1.5 servings of fruit daily.
In this study, which involved over 110,000 women and men, researchers evaluated the effect of
study participants' consumption of fruits; vegetables; the antioxidant vitamins A, C, and E; and
carotenoids on the development of early ARMD or neovascular ARMD, a more severe form of the
illness associated with vision loss. While, surprisingly, intakes of vegetables, antioxidant vitamins
and carotenoids were not strongly related to incidence of either form of ARMD, fruit intake was
definitely protective against the severe form of this vision-destroying disease. Three servings of
fruit may sound like a lot to eat each day, but pineapple can help you reach this goal. Add fresh
pineapple to your morning smoothie, lunch time yogurt, any fruit and most vegetable salads. For
example, try adding chunks of pineapple to your next coleslaw or carrot salad.
Joy PP. 2010. Benefits and uses of pineapple. Pineapple Research Station (Kerala Agricultural University),
Vazhakulam-686 670, Muvattupuzha, Ernakulam District, Kerala, India.
Nutritional Value
Given here is the value of different nutrients in 100 grams of pineapple.
Calcium - 16 mg
Energy- 52 Calories
Carbohydrates - 13.7 gm
Dietary Fibre - 1.4 gm
Iron - 0.28 mg
Magnesium - 12 mg
Protein - 0.54 g
Phosphorus - 11 mg
Potassium - 150 mg
Vitamin A - 130 I.U
Vitamin B1 - 0.079 mg
Vitamin B2 - 0.031 mg
Vitamin B3 - 0.489 mg
Vitamin B6 - 0.110 mg
Vitamin C - 24 mg
Zinc - 0.10 mg
Nutritional and Health Benefits
One of the juiciest fruits that is absolutely a delight to eat is the pineapple. It can be taken with
whipped cream, custard or just like that. Pineapple juice is equally yummy and refreshing and is one
of the favorite drinks of many people during hot weather. The best part about pineapples is that it is
loaded with nutrients and beneficial enzymes, which ensures that you not only have a healthy body
but also a glowing complexion.
Pineapple is known to be very effective in curing constipation and irregular bowel movement. This
is because it is rich in fibre, which makes bowel movements regular and easy.
For any kind of morning sickness, motion sickness or nausea, drink pineapple juice. It works
effectively in getting rid of nausea and vomiting sensation.
It has virtually no fat and cholesterol and is loaded with essential nutrients and vitamins that are
needed by the body for overall growth and development.
Juice from fresh pineapple can be used to relieve bronchitis, diphtheria and chest congestion. Not
only does it have enough amounts of Vitamin C, but it also contains an enzyme called Bromelain,
which is known to dissolve and loosen up mucus.
Pineapple is effective in getting rid of intestinal worms and also keeps the intestines and kidneys
clean. It is effective in flushing out the toxins from the body, thus making the metabolism healthy.
Pineapples are very rich in manganese and even a single cup of pineapple is supposed to contain a
good amount of it. This mineral is required for the growth of healthy bones and tissues.
Joy PP. 2010. Benefits and uses of pineapple. Pineapple Research Station (Kerala Agricultural University),
Vazhakulam-686 670, Muvattupuzha, Ernakulam District, Kerala, India.
High content in Vitamin C ensures that oral health remains in top condition always. It helps prevent
gum disease and also prevents the formation of plaque, thus keeping the teeth healthy.
Food Uses
In Puerto Rico and elsewhere in the Caribbean, Spaniards found the people soaking pineapple slices
in salted water before eating, a practice seldom heard of today.
Field ripe fruits are best for eating fresh, and it is only necessary to remove the crown, rind, eyes
and core. In Panama, very small pineapples are cut from the plant with a few inches of stem to serve
as a handle, the rind is removed except at the base, and the flesh is eaten out-of-hand like corn on
the cob. The flesh of larger fruits is cut up in various ways and eaten fresh, as dessert, in salads,
compotes and otherwise, or cooked in pies, cakes, puddings, or as a garnish on ham, or made into
sauces or preserves. Malayans utilize the pineapple in curries and various meat dishes. In the
Philippines, the fermented pulp is made into a popular sweetmeat called nata de pina. The
pineapple does not lend itself well to freezing, as it tends to develop off flavours.
Canned pineapple is consumed throughout the world. The highest grade is the skinned, cored fruit
sliced crosswise and packed in syrup. Undersize or overripe fruits are cut into "spears", chunks or
cubes. Surplus pineapple juice used to be discarded after extraction of bromelain (q.v.). Today there
is a growing demand for it as a beverage. Crushed pineapple, juice, nectar, concentrate, marmalade
and other preserves are commercially prepared from the flesh remaining attached to the skin after
the cutting and trimming of the central cylinder. All residual parts cores, skin and fruit ends are
crushed and given a first pressing for juice to be canned as such or prepared as syrup used to fill the
cans of fruit, or is utilized in confectionery and beverages, or converted into powdered pineapple
extract which has various roles in the food industry. Chlorophyll from the skin and ends imparts a
greenish hue that must be eliminated and the juice must be used within 20 hours as it deteriorates
quickly. A second pressing yields "skin juice" which can be made into vinegar or mixed with
molasses for fermentation and distillation of alcohol.
In Africa, young, tender shoots are eaten in salads. The terminal bud or "cabbage" and the
inflorescences are eaten raw or cooked. Young shoots, called "hijos de pina" are sold on vegetable
markets in Guatemala.
Food Value Per l00 g of Edible Portion*
Moisture 81.3-91.2 g
Ether Extract 0.03 0.29 g
Crude Fibre 0.3-0.6 g
0.098 g
6.2 3
7.2 mg
Phosphorus 6.6-11.9 mg
Iron 0.27-1.05 mg
Joy PP. 2010. Benefits and uses of pineapple. Pineapple Research Station (Kerala Agricultural University),
Vazhakulam-686 670, Muvattupuzha, Ernakulam District, Kerala, India.
Carotene 0.003 0.055 mg
0.048 0.138 mg
0.04 mg
Niacin 0.13-0.267 mg
Ascorbic Acid
27.0-165.2 mg
*Analyses of ripe pineapple made in Central America.
Sugar/acid ratio and ascorbic acid content vary considerably with the cultivar. The sugar content
may change from 4% to 15% during the final 2 weeks before full ripening.
When unripe, the pineapple is not only inedible but poisonous, irritating the throat and acting as a
drastic purgative.
Excessive consumption of pineapple cores has caused the formation of fibre balls (bezoars) in the
digestive tract.
Other Uses
The proteolytic enzyme, bromelain, or bromelin, was formerly derived from pineapple juice; now it
is gained from the mature plant stems salvaged when fields are being cleared. The yield of
bromelain from stem juice is 2.15%. The enzyme is used like papain from papaya for tenderizing
meat and chill proofing beer; is added to gelatin to increase its solubility for drinking; has been used
for stabilizing latex paints and in the leather-tanning process. In modern therapy, it is employed as a
digestive and for its anti-inflammatory action after surgery, and to reduce swellings in cases of
physical injuries; also in the treatment of various other complaints.
Pineapple leaves yield a strong, white, silky fibre which was extracted by Filipinos before 1591.
Certain cultivars are grown especially for fibre production and their young fruits are removed to
give the plant maximum vitality. The 'Perolera' is an ideal cultivar for fibre extraction because its
leaves are long, wide and rigid. Chinese people in Kwantgung Province and on the island of Hainan
weave the fibre into coarse textiles resembling grass cloth. It was long ago used for thread in
Malacca and Borneo. In India, the thread is prized by shoemakers and it was formerly used in the
Celebes. In West Africa, it has been used for stringing jewels and also made into capes and caps
worn by tribal chiefs. The people of Guam hand-twist the fibre for making fine casting nets. They
also employ the fibre for wrapping or sewing cigars. Pina cloth made on the island of Panay in the
Philippines and in Taiwan is highly esteemed. In Taiwan, they also make a coarse cloth for farmers'
Joy PP. 2010. Benefits and uses of pineapple. Pineapple Research Station (Kerala Agricultural University),
Vazhakulam-686 670, Muvattupuzha, Ernakulam District, Kerala, India.
The outer, long leaves are preferred for fibre. In the manual process, they are first decorticated by
beating and rasping and stripping, and then left to ret in water to which chemicals may be added to
accelerate the activity of the microorganisms which digest the unwanted tissue and separate the
fibres. Retting time has been reduced from 5 days to 26 hours. The retted material is washed clean,
dried in the sun and combed. In mechanical processing, the same machine can be used that extracts
the fibre from sisal. Estimating 22 leaves/kg, 22,000 leaves would constitute one tonne and would
yield 22-27 kg of fibre.
Pineapple juice has been employed for cleaning machete and knife blades and, with sand, for
scrubbing boat decks.
Animal Feed
Pineapple crowns are sometimes fed to horses if not needed for planting. Final pineapple waste
from the processing factories may be dehydrated as "bran" and fed to cattle, pigs and chickens.
"Bran'' is also made from the stumps after bromelain extraction. Expendable plants from old fields
can be processed as silage for maintaining cattle when other feed is scarce. The silage is low in
protein and high in fibre and is best mixed with urea, molasses and water to improve its nutritional
In 1982, public concern in Hawaii was aroused by the detection of heptachlor (a carcinogen) in the
milk from cows fed "green chop" leaves from pineapple plants that had been sprayed with the
chemical to control the ants that distribute mealy bugs. There is supposed to be a one year lapse to
allow the heptachlor to become more dilute before sprayed plants are utilized for feed.
Folk Medicine
Pineapple juice is taken as a diuretic and to expedite labour, also as a gargle in cases of sore throat
and as an antidote for sea sickness. The flesh of very young (toxic) fruits is deliberately ingested to
achieve abortion (a little with honey on 3 successive mornings); also to expel intestinal worms; and
as a drastic treatment for venereal diseases. In Africa the dried, powdered root is a remedy for
edema. The crushed rind is applied on fractures and the rind decoction with rosemary is applied on
hemorrhoids. Indians in Panama use the leaf juice as a purgative, emmenagogue and vermifuge.
Ornamental Value
The pineapple fruit with crown intact is often used as a decoration and there are variegated forms of
the plant universally grown for their showiness indoors or out. Since 1963, thousands of potted,
ethylene treated pineapple plants with fruits have been shipped annually from southern Florida to
northern cities as indoor ornamentals.
... Pineapple is a wonderful tropical fruit having exceptional juiciness, vibrant flavor and immense health benefits (Joy, 2010). In developing countries like Uganda, most of the fresh pineapples produced are sold in domestic markets and bought for domestic consumption (Spore Magazine, 2008). ...
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This study was carried out to examine the contribution of pineapple growing on farmer's welfare in Maziba Sub-County, Kabale District. The study was guided by these objectives namely; i) to examine the different pineapple species grown in Maziba Sub-County, ii) to examine the contributions of pineapple growing on welfare of farmers in Maziba Sub-County and iii) to assess the challenges facing pineapple farmers in Maziba Sub-County. The study employed descriptive research design that helped in gathering data. The study used both purposive and simple random sampling to select the respondents. The study used a sample size of sixty-nine (69) respondents selected from six parishes within the sub county. The study was analyzed using simple quantitative techniques of frequencies, percentages and tables. Benefits and constraints were analyzed, findings are carried out and major conclusions are drawn from data analysis showing that pineapple growing still has contributed on the income of the pineapple growers in the study area. Poor means of transport in form of roads, is still a challenge. There should be improvement of roads connecting rural areas to urban centers. It was concluded that there are a lot of contributions of pineapple production in Maziba Sub County, Kabale District of which includes source of food, source of income, source of foreign exchange, source of medicine, helps in environmental protection in that it acts as a cover crop, pineapple peelings are used as animal feeds and source of employment opportunities to the people. Also from research question three, it was found out that there are many constraints faced by pineapple farmers in Maziba Sub County, Kabale District. These include low in put-out put technology, limited market prospects for food, marketing infrastructural constraints, financial problems, pests and diseases, poor means of transport in form of roads, land fragmentation, high degree of risks and uncertainties and un educated farmers. Agricultural programmes aiming at rural development should focus on uplifting the poor through encouraging them to actively participate in productive agricultural group formation. This can help farmer s to easily access agriculture loans from money lending institution such as bank and other microfinance institution. Land fragmentation should be solved by carrying out land consolidation that is combining small plots of land into a large farm land such way that cultivation using machine become possible. This can reduce time, cost of labor and increases total production per hectare. Farmers should be sensitized on the importance of record keeping so that they keep records to help them assess the profitability of pineapple growing compared to other growing crops. Agricultural programs aiming at rural development should focus on uplifting the poor through encouraging them to actively participate in productive agriculture through group formations. Farmers should be provided with new pineapple varieties which adoptive to harsh climatic conditions and resistant to pests and diseases. Farmers should be guided on how to form marketing cooperatives in order to overcome exploitation of middle men who buy pineapples from framers at relatively cheap price and sell them expensively to urban retailers and consumers. There should be improvement of extension services by providing extension centers with man power and enough facilities. There should be improvement of roads connecting rural areas to urban centers. Through this, transportation of the harvested pineapples to market centers becomes possible.
... Due to the increasing demand for naturally produced lactic acid, the fermentation process particularly solidstate fermentation (SSF) method by using various cheap raw materials is industrially preferable nowadays. Fungi were recorded as the most preferable microorganism for solid-state fermentation (SSF) as their super ability to penetrate and utilize the nutrients from solid waste (Joy, 2010;Mathew et al., 2015;Pandey and Pitman, 2003). The production of lactic acid by Rhizopus oryzae was achieved by utilizing solid pineapple waste as the substrate in solid-state fermentation technique. ...
One of the most significant and difficult jobs in food sustainability, is to make use of waste in the vegetable and fruit processing sectors. The discarded fruits along with their waste materials, is anticipated to have potential use for further industrial purposes via extraction of functional ingredients, extraction of bioactive components, fermentation. As a result of its abundant availability, simplicity and safe handling, and biodegradability, pineapple waste is now the subject of extensive research. It is regarded as a resource for economic development. This vast agro-industrial waste is being investigated as a low-cost raw material to produce a variety of high-value-added goods. Researchers have concentrated on the exploitation of pineapple waste, particularly for the extraction of prebiotic oligosaccharides as well as bromelain enzyme, and as a low-cost source of fibre, biogas, organic acids, phenolic antioxidants, and ethanol. Thus, this review emphasizes on pineapple waste valorisation approaches, extraction of bioactive and functional ingredients together with the advantages of pineapple waste to be used in many areas. From the socioeconomic perspective, pineapple waste can be a new raw material source to the industries and may potentially replace the current expensive and non-renewable sources. This review summarizes various approaches used for pineapple waste processing along with several important value-added products gained which could contribute towards healthy food and a sustainable environment.
... Bromelain has comprised of sulfhydryl proteolytic enzymes which have protein-digesting and milkclotting and coagulating properties (Orsini 2007). Blood coagulation, inflammation, and certain types of the tumor may all be reduced by therapeutic doses of bromelain when taken as a dietary supplement (Joy 2010). It may also help to ease arthritis pain, heal the early stages of an injury, prevent and treat sports injuries, joint aches, tendonitis (Debnath et al. 2012). ...
In the past few years, we have been very familiar with the waste hierarchy concept of the 3 R’s, Reduce, Reuse and Recycle. This review article aims to suggest a possible way to reuse the agro-waste sector. It will focus on the zero waste food industry. While consuming our day-to-day food unknowingly we throw away some of the important portions of fruits and vegetables which can help us fight diseases and stay healthy. Therefore, we need proper management to utilize these beneficial components present in those fruit scrapes. An abundant amount of food waste is been produced during the processing of food from the different food industries. In addition to this, agro wastes like peels, seeds, etc. are also generated from fruit and vegetable agriculture. This paper mainly focuses on the agro-waste of the food industry, which can be consumed when the bioactive compound is extracted and is available as a functional food. The bioactive compounds have the potential to control blood pressure, diabetes, inflammation, etc. Thus, by incorporating these bioactive compounds we can enhance the quality of food. Recently functional food is consumed by a large population for its beneficial effect on our body.
... Table 3 shows that the pH value of yellow passion fruit juice was 3.2. The value found in this study was in agreement with the 3.4 reported by Joy (2010). The result indicated that the juice was fairly acidic. ...
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This study was carried out to investigate the optimum level of ingredients to develop an acceptable jam product from yellow passion fruit. The jam was developed from fresh yellow passion fruit using four ingredients: sugar, pectin and citric acid of different levels. The different ingredient levels were optimized using response surface methodology (RSM). A uniform precision type Box-Behnken design consisting of three variables in a three-level pat-tern with 17 runs (with five center points) was employed to optimize the jam to obtain a product with adequate sensory acceptability, especially, overall acceptability. Sensory analysis for appearance, color, flavor, sweetness, taste, texture and overall acceptability was performed. Jam produced under the optimum conditions was subjected to sensory evaluation, and the results were compared with the RSM predictions. Data obtained from RSM were subjected to the analysis of variance (ANOVA) using a second-order poly-nomial equation. Results showed that the model fit was significant (p < .05) for appearance, flavor, taste, sweetness and even highly significant (p < .01) for texture, color and overall acceptability. There was also a satisfactory correlation between actual and predicted values. Depending on the best sensory score obtained, the optimum ingredient levels were 400 g/kg, 5.24 g/ kg and 1 g/kg for sugar, pectin and citric acid, respectively.
... When the results were ranked according to perception of those respondents who strongly agree then; use of ICT ranks the highest at 69.9% followed by growth of pineapple formal sector at 65.6% and the third rank perception is the increased demand of consumption at 60.1%.These findings were in agreement with those who found that usage of ICT tools acts as a business opportunity for smallholder agripreneurs since it aids in the provision of pineapple market information [25]. Additionally, in terms of growth in the pineapple formal sector the findings were similar to the studies undertaken in India that found increased level of value addition on pineapple in India resulted to increased production of pineapple since the enterprise was attractive to both domestic and export markets [26]. ...
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Pineapple farming is among the fastest-growing agricultural sub-sectors in Homa Bay County, Kenya specifically Rangwe sub-county. However, limited attention has been given to the market access of this produce. Evidenced by vast quantities of pineapples harvested from the farms and stacked along main highways without targeting a specific market. This result to a small portion being sold and the rest deteriorating, consequently reducing returns for pineapple agripreneurs. Therefore, this paper sought to determine those factors that influences access to formal market by pineapple agripreneurs and as well as find out challenges of and opportunities for accessing formal markets by the Rangwe pineapple agripreneurs. The survey was undertaken in Rangwe Sub-county, and multisampling method was used to select a sample of 183 pineapple agripreneurs from the study area, primary data was collected using a semi-structured survey tool. Data was analyzed by descriptive analysis and Logistic regression model. Results indicated that pineapple agripreneurs were faced with numerous challenges in accessing pineapple market, also there existed several market access opportunities for pineapple agripreneurs. The results of logistic regression analysis revealed extension contacts, education level and price of pineapple as factors that were positively and statistically significant in influencing access to formal markets. While those that were statistically and negatively influencing access to formal market comprised of; age of household head, household size, and type of road. The study recommends; improvement of road infrastructure in pineapple producing areas so as to improve on their market access; development of policies that encourages capacity building of pineapple agripreneurs in Rangwe sub-county
... Ananas comosus (pineapple) is a humid tropical fruit that originated from Paraguay and Brazil located in the Amazon basin of South America from before spreading to the rest of the world. Among all important tropical fruits globally, pineapple is third after banana and citrus and contributes well over 20% of global production of tropical fruits especially because of its richness in sugar, bromelain, citric and malic acids, vitamins A, B, and C, minerals, and considerable amount of calcium, potassium, and fiber (Hemalatha & Anbuselvi, 2013;Joy, 2010). This undoubtedly makes pineapple often used as additional nutritional fruit for health improvement. ...
The quest for renewable energy generation is fast increasing globally due to environmental degradation by fossil fuels. The energy production from the anaerobic codigestion of pineapple peels (PPs) and poultry manure (PM) was assessed in the present study. Prior to digestion, the PPs were pretreated using a strong acid (sulfuric acid) and a low-cost mild alkali hydrogen peroxide (H 2 O 2) which was prepared via the adjustment of the pH of H 2 O 2 to 11.5 by adding solution of 5 M NaOH. The phys-icochemical and structural parameters of the biomass, as well as microbial composition , were evaluated by using standard methodologies, while all structural changes to the biomass after pretreatment were determined using the Fourier transform infrared spectra. The application of alkaline H 2 O 2 pretreatment removed 71.34% of lignin, reduced hemicellulose by 61%, but increased the cellulose content by 39%. The alkaline pretreated pineapple peel (Al-P PP) was able to produce about 91% more biogas than the acid pretreated pineapple peel (Ac-P PP) and 36% more than the two untreated biomass samples. The results of the economic assessment of pretreatment also showed that investment into the use of H 2 O 2 for pretreatment is economically feasible with high net thermal and electrical energy gain, while that of acid pretreat-ment results in loses. Therefore, alkaline pretreatment application to PPs prior to digestion is hereby solicited in the biotechnological conversion of PPs/wastes for biogas and quality digestate which can be used as biofertilizers or soil enhancers especially in those regions where pineapple production is enormous. K E Y W O R D S biogas, biomass, clean and affordable energy, climate action, environmental sustainability, optimization [Correction added on 13 May, after first online publication: The original version of the article published with errors in the Funding Information section and authors/ affiliations. This updated version of the article corrects these errors.]
... Pineapple (Ananascomosus), which is extensively grown in Costa Rica, Brazil, Philippines, Thailand, Indonesia, India, Nigeria, China, Mexico, and Columbia, is considered to be the king of fruits because of its attractive flavor (Pariona, 2018).Pineapple fruit has immense health benefits as it contains considerable amount of dietary fiber, calcium, potassium, manganese and vitamin C while the fat and cholesterol content are very low (Joy, 2010). Pineapple can be grown in most of the areas of Sri Lanka, but it is prominent in the low country wet zone and intermediate zones (Department of Agriculture, 2015). ...
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Pineapple (Ananas comosus) in family Bromeliaceaeis a large, succulent, and tasty fruit with immense health benefits. Among all the cultivation activities of pineapple, harvesting is the most difficult, time-consuming, and energy-intensive process due to the higher plant density and spiny leaves of pineapple plants. Although, mechanization helps to increase the efficiency and post-harvest quality, very little attention has been drawn to the mechanization of the harvesting process. Therefore, the aim of this study was to introduce an efficient mechanical method for harvesting to overcome the practical problems associated with manual harvesting. The major concept of this is to harvest more fruits from one place by minimizing movement in the cultivation. The long handle, fruit picker, stalk holder, cutter, and operating levers are the major components of this device. The remotely operated cutter and fruit gripper are fixed in one end of the 2m long handle and operating levers are attached to other end so that all the fruits within a nearly 2m radius circular area can be harvested from a one place. The performance of the mechanical harvester was evaluated compared to the manual method at a pineapple field in Kurunegala district of Sri Lanka. The Actual harvesting capacity of the device was 385 fruits h-1 with 84% efficiency while the manual method recorded it as 210 fruitsh-1 with 64% efficiency when it is operated by males in double row cultivation systems. Results clearly showed that the mechanical method saves more time considerably than the manual method.
Along with food processing, the production of agro-industrial waste in the world increases, despite the fact that it is a rich source of nutrients and bioactive compounds. In developing countries, waste materials from the agricultural industry can significantly help in obtaining valuable components for the production of various types of bio-based products. The aim of the work is to manage potato peel waste from the agri-food processing industry and to propose new nutritional and industrial applications for them. Food processing by-products are an inexpensive, affordable, and valuable starting material for the extraction of value-added products such as dietary fiber, natural antioxidants, biopolymers, and natural food additives. Potato peel waste, which is produced by various processes, such as extraction, fermentation, and other processes, can be transformed into products such as biofuels, dietary fiber, bio-fertilizers, biogas, biosorbent, antioxidants and various food additives. This work explores the use of potato skins as a source of nutraceuticals for food and non-food purposes, e.g., extraction, use of bioactive ingredients, biotechnological use, livestock feed and other applications. The practical approach will be able to be used in developing awareness of the proper management of agricultural waste, as well as in their application for the synthesis of many compounds such as lactic acid, biosorbent, biohydrogen, enzymes, etc., which serve as a basis for developing links between industry and sharing with new ideas and technologies.
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This study was undertaken to estimate the financial profitability and assess the value chain of pineapple in Madhupur upazila of Tangail, Bangladesh. A total of 100 stakeholders were interviewed randomly using a structured questionnaire to collect primary data. A combination of descriptive, mathematical, and statistical techniques was used to analyze the data. The study depicts that 76.7% farmers used Giant Kew variety for pineapple production. Profitability analysis shows that pineapple production was profitable in the study area. The study reveals that the total value added by the stakeholders to a piece of pineapple was Tk. 38. Among the market actors, wholesalers added the highest value of Tk. 13 per piece (34.2% of total value addition). The study also identified six significant factors, namely, income, farming experience, credit access, market price, labor availability, and lower production of paddy having positive influence on farmers' decision to adopt pineapple production. The study found higher price of inputs, lack of preservation and processing facilities, and lack of operating capital as the major problems for production, value addition, and marketing of pineapple, respectively. The study recommended to ensure reasonable price of the inputs along with better infrastructure, transportation, and processing facilities to overcome the problems. Furthermore, monitoring facilities of government and non‐government organizations should be increased to improve quality of pineapple.
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