Enrique Sauri

Tecnológico Nacional de México-Instituto Tecnológico de Mérida · Ingeniería Química y Bioquímica/División de Estudios de Postgrado e Investigación

Edible coating (EC), based on starch and moringa leaf extract, was evaluated on the content of bioactive compounds and shelf life in minimally processed chicozapote fractions stored at 4°C; the response variables evaluated were titratable acidity, total soluble solids, polyphenol content, and vitamin C, and the antioxidant activity by means of DPPH...

Tropical fruit is a source of bioactive substances. Phenolic compounds and cytotoxicity were quantified in nineteen tropical fruits grown in rural Yucatan, Mexico, and the fruits were classified based on their bioactive compound contents and antioxidant activity. Twelve phenolic compounds were identified (four hydroxycinnamic acids, two hydroxybenz...

The objective of the study was to evaluate the physical characteristics, content, and profile of anthocyanin and phenolic compounds and the antioxidant activity of the purple corn of the Yucatan Peninsula. A sample of purple corn (X’ejúu nuk nal) cultivated in the Yucatan Peninsula was studied. From the results it can be seen that the purple corn s...

A cooked salami was made with tomato extract (TE) and soy in its formulation. Antioxidant capacity was determined at 10 days of manufacture, as well as % of free radical inhibition 2,2’-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). Two tomato extracts (2% and 4%) and a control were used, without TE; lycopene and β-carotene content were...

El objetivo fue determinar la composición química proximal de cuatro tejidos de B. alicastrum y también evaluar el efecto de la cocción de las semillas de Ramón sobre el contenido de compuestos fenólicos y la capacidad antioxidante de la harina y tortillas. La hoja, la semilla, la piel de semilla y la cáscara del fruto de Ramón se recolectaron,...

The objective of this study was to evaluate different levels of ingredients and mixing times to elaborate gluten-free bread with good physical quality. The gluten-free bread was processed with flour composed of unripe plantain and B. alicastrum with different levels of water (between 80 and 115 mL), transglutaminase enzyme (between 0.10 and 1.5%),...

Ramon nut (B. alicastrum) is known to contain bioactive compounds and has been used for medicinal and food purposes for millennia. In the present study the objectives were to quantify and compare the proximal composition, phytochemical contents, in vitro antioxidant capacity and individual phenolic compounds in B. alicastrum leaf, fruit peel, seed...

O production in Mexico. Design/Methodology/Approach: We used the Food Balance Sheet obtained from the FAOSTAT website and the statistics of livestock production in Mexico recovered from the website of the Servicio de Información Agrícola y Pesquera (SIAP). We chose ten variables: production, import, export, per capita consumption, number of hives,...

Research background Enzymatically resistant maltodextrins (ERM) are a resistant starch type 4, synthesized from native starch. They are obtained by the sequential application of two processes: pyrodextrinization, which produces pyrodextrins, and enzymatic hydrolysis, which produces ERM. In these processes atypical bonds are formed that confer pyrod...

The aim of this work was to compare the effect of solvents in the UAE on the content of total phenolic compounds (TPC) and in vitro antioxidant capacity DPPH and reducing power (RP) of the whole fruit B. alicastrum. The phenolic compounds of the freeze-dried fruit were extracted in an ultrasonic bath for 30 min at 30°C, 100% amplitude and 40 kHz fr...

The leaves and fruit of Brosimum alicastrum, a neotropical tree, contain many phenolic compounds, although it is still unclear which extraction techniques and protocols are most efficient. We analyzed the effect of solvent-to-tissue ratio (STR) and lyophilized tissue type (LT) in ultrasound-assisted extraction (UAE) of B. alicastrum leaf and seed e...

The aim of this work was to compare the effect of solvents in the UAE on the content of total phenolic compounds (TPC) and in vitro antioxidant capacity DPPH and reducing power (RP) of the whole fruit B. alicastrum. The phenolic compounds of the freeze-dried fruit were extracted in an ultrasonic bath for 30 min at 30 °C, 100 % amplitude and 40 kHz...

Se evaluó el efecto de la proporción disolvente-tejido (PDT) y el tipo de tejido liofilizado (TL) en EAU sobre el contenido de compuestos fenólicos totales (CFT) y el rendimiento de extracción (RE) de B. alicastrum. Los compuestos fenólicos de la cáscara, piel de semilla, semilla y hoja liofilizado fueron extraídos con etanol-agua destilada (1:1, v...

Actualmente, los cítricos son las frutas más utilizadas en la obtención de bebidas naturales debido a su sabor sumamente apreciado y cotizado a nivel mundial. De estos frutos, destaca principalmente la naranja (Citrus sinensis L). El jugo de este fruto es de gran importancia en la industria de los alimentos, debido a la importancia económica de su...

p> Background: Maize ( Zea mays L.) is the main sustenance in the daily diet of Mexican families. As a crop, it is one of the most important in the country of Mexico, and in Yucatan state, it is grown under rainfed conditions in milpas with no mechanizable lands. In this study, an analysis of the phenotypic variability from cob collects of native m...

Mangrove forests are threatened by the continuous discharge of inorganic pollutants and studies show that coasts receive high levels of heavy metals, from which lead (Pb) is one of the most persistent and toxic. In the present study, lead accumulation capacity, as well as its toxicological effects and tolerance mechanisms, such as proline accumulat...

Los procesos de fermentación involucrados en la producción de alimentos derivados del cacao (Theobroma cacao L.), café (Coffea canephora P.) y maíz (Zea mays) pueden considerarse parte de la Biotecnología Alimentaria, esto nos afirma que esta disciplina tiene cientos de años de evolución en el Sur-Sureste mexicano. Los mayas preparaban una bebida a...

Tropical ecosystems are rich in plant species of special interest to the pharmacological industry. Tropical fruit peels contain several bioactive compounds and show biological activities, unfortunately they don’t get enough attention. This is an updated review of the bioactive compounds present in tropical fruits peels: Actinidia deliciosa (Kiwif...

Antioxidant activity (AA), total polyphenols content (TPC) and polyphenols profile (PP) were investigated during 10 days of postharvest ripening, in peels and pulps from fruits from three Carica papaya genotypes of different origin. Wild-genotype (WG) collected in Yucatan, Mexico (part of its center of origin) showed higher AA and TPC values than t...

Tortillas were obtained using nixtamalized corn flour with B. alicastrum flour at different proportions (0, 10, 20 y 30%, w/w on a dry basis). Tortillas were analyzed in relation to the chemical composition, amino acid profile, phenolic compounds, antioxidant activity and physical properties. The addition of B. alicastrum flour in tortillas increas...

The objective of the present work was to determine the influence of feeding type and artisanal process on microstructural and physicochemical parameters of goat cheeses. The cheeses were made with goat's milk from goats which were fed with different forages: (1) reed (Cissu verticillata) and King grass (Saccharum sinense), (2) mulberry (Morus alba)...

The objective of this work was to investigate the variability of physicochemical parameters, phenolic compounds and in vitro antioxidant activity of propolis collected from different apiaries in southeastern Mexico. A high variability was found in the moisture content (1.96-8.26%), ash (0.66-5.50%) and sensory characteristics of raw propolis from s...

The present work evaluated the influence of extraction method and species on the physicochemical properties, oxidative stability, fatty acid profiles, and rheological behaviour of pumpkin seed oils. The seeds of two pumpkin species (Cucurbita argyrosperma Huber [CA] and Cucurbita moschata Duchesne [CM]) were obtained from small-scale pumpkin proces...

An aroma distillate with the odour note described as ‘fresh Habanero chilli pepper' was obtained from hydrodistillation of the fruit. GC-MS analysis of the volatile constituents from the aroma distillate allowed the identification of 100 compounds, most of them esters followed by aldehydes, alcohols, terpenes, ketones, and acids. Encapsulation proc...

Some tropical coastal areas that include mangroves are highly polluted by heavy metals, where lead (Pb) is prevalent. Few studies document how environment affects soil physicochemical characteristics and the availability of heavy metals. This study evaluated how different salt concentrations influenced the accumulation of Pb in plants of Avicennia...

Volatile constituents in mango ‘Ataulfo’ (Mangifera indica L.) fruit were isolated by HS–SPME and solvent-assisted flavor evaporation (SAFE). Analyses were performed by GC–FID, GC–MS and GC–O. Aroma extract dilution analysis (AEDA) and odor activity value (OAV) were applied to find the odor-active compounds. A total of 108 volatile compounds compri...

Volatile constituents and odor-active compounds of two varieties of Habanero pepper (Capsicum chinense Jacq.) were analyzed by GC–MS, GC–O and AEDA. A total of 118 volatile compounds were obtained from Habanero pepper varieties Mayapan and Jaguar by simultaneous distillation–extraction technique. Compounds such as esters, terpenes, aldehydes, alcoh...

Apis mellifera propolis has been used in ethnobotany and its compounds and therapeutic properties have been evaluated in various studies. Propolis from Maxcanú, Tizimín and Huhí, Yucatán, México were analyzed, determining the bioactive compounds (BC) of ethanolic extracts (PEE) and their potential use in the control of blood pressure, diabetes, and...

El objetivo de la investigación fue evaluar la calidad y actividad antioxidante de extractos comerciales de propóleos de Yucatán. Los extractos utilizados para este estudio fueron adquiridos en presentación de tintura (extracto etanólico de propóleos, EEP). Acorde a los resultados, se encontró que el contenido de extracto seco de EEP varío ampliame...

Plant-essential oils have been considered as an important source of bioactive molecules like antimicrobials, analgesics, anti-inflammatory and anti-carcinogen agents. Biological functions of plant extracts from the genus Capsicum are unknown. In the present work, non-polar fractions of ripe and unripe fruits of Capsicum chinense Jacq. Cultivar (cv....

The response surface methodology was employed to optimize the microencapsulation condition of cold‐pressed winter squash (Cucurbita moschata Duchesne) seed oil. The powder yield, extraction efficiency, and bulk density were investigated with respect to two factors including concentration of maltodextrin DE 10 (5, 10, and 15% w/w) combined with 10%...

In this study, the effect of the extraction method (mechanical pressing, MP and organic solvent, OS) and the specie (Cucurbita argyrosperma Huber, CA; and Cucurbita moschata Duchesne, CM) on the content of bioactive compounds and antioxidant activity of oil from pumpkin of Yucatan, Mexico was investigated. Between the two extraction methods, the oi...

Tomatoes (Solanum spp.), could be produced in an aquaponic system with fertilizer supplementation to optimize tomato production, since the small amount of fine soil and nutrients from Yucatan soils limits tomato cultivation. It is necessary to investigate that farming system allows the production of tomatoes without affecting their composition and...

The aim of the present work was to investigate the influence of maturity (MS1: green, MS2: green changing to orange and MS3: orange), the extraction procedure (EP1, with pH=7.0±0.1 and EP2, with pH = 2.0±0.1) and the liquid to solid ratio (from 10 to 60 mL/g) used for the extraction, on the content of total phenolic compounds (TPC) and on the antio...

Ramon nut (Brosimum alicastrum) is a vegetable product of significant importance in the Mayan culture given that it is a part of their diet; however, it has not yet been fully studied. The effect of seven solvent systems on the content of total phenolic compounds (TPC), extraction yield, total flavonoids (TF) and antioxidant activity was evaluated...

The objective of this study was to investigate extracts from the peels of Annona squamosa L. (purple sugar apple), Annona reticulata L. (custard apple), Chrysophyllum cainito L. (green star apple), and Melicoccus bijugatus Jacq. (mamoncillo), as potential sources of anti-HIV-1 agents. Methanolic extracts from the peels of the aforementioned tropica...

The aroma-active compounds present in tree ripened fruits of ciruela (Spondias purpurea L.) cultivars Chi abal, Campech abal, and Ek abal were isolated by means of simultaneous distillation solvent extraction and solid-phase microextraction and analyzed by gas chromatography-mass spectrometry. Application of odor activity values (OAV) afforded 22 c...

En el presente estudio se llevó a cabo la evaluación del potencial citotóxico de las cáscaras de dos frutas tropicales: Annona squamosa L. (saramuyo) y Chrysophyllum cainito L. (Caimito). Los extractos metanólicos fueron obtenidos mediante maceración directa para posteriormente llevar a cabo la evaluación citotóxica por el método de Sulforodamina B...

Tropical fruit peels are generally discarded as waste, yet they contain bioactive substances that could have various uses; in addition, their pharmacological potential remains unexplored. This study aims to characterize the phytochemical profile, toxicity, and pharmacological potential of methanol extracts obtained from the peels of the following t...

Biological activity of Habanero pepper is principally due to capsaicinoids, flavonoids, carotenoids and peptides. However, the volatile fraction of this fruit has not been analysed earlier. Isolation of the volatile compounds from two varieties of Habanero pepper was performed by simultaneous distillation-extraction method. Gas chromatography-mass...

In recent years, it has been found that certain foods, besides contributing with their basic functions which is to prevent nutrient deficiencies, can also produce other ben‑ eficial effects for human health. This has led to a more preventive focus on nutrition from a public health point of view, by taking advantage of the minority compounds present...

Fruit by-products such as peel often contain more bioactive compounds than the edible portion. Extracts of eleven tropical fruit peels were found to have high bioactive compound contents and high antioxidant activity. Green sugar apple and purple sugar apple peels had the highest total phenolics content, total flavonoids and antioxidant activity va...

It has been suggested that the anthelmintic (AH) activity of tannin-rich forages is related to their tannin content. However, reports on tropical fodders such as Lysiloma latisiliquum describe the same AH activity after the addition of tannin-blocking agents, suggesting that the activity either depends on the method of tannin blocking/removal or is...

The aim of this study was to determine the carotenoid composition, as well as the antioxidant activity of carotenoid extracts of fruits from Yucatan, Mexico. Among the fruits evaluated, the mamey sapote (36.41 mg of β-carotene/100 g of edible portion) obtained the highest total carotenoids content, while the red mombin, green sugar apple, green-yel...

Lucuma hypoglauca Standley, locally named choch, is apparently native from Southern Mexico, but is also cultivated in Central and South America. The fruit is consumed fresh and it is widely accepted in diverse regional markets. Owing to the great potential of commercialization as an exotic fruit, it is important to analyze the aroma of this fruit....

In this study, production of sour orange juice powder utilizing a spray dryer was investigated. To prevent stickiness, maltodextrin DE 12 was used as a drying agent. While feed flow rate, feed temperature, and air flow rate were kept constant, inlet air temperature (120-160 C-omicron) and maltodextrin content (maltodextrin dry solids/100 g feed mix...

Achiote (Bixa orellana L.) is a plant native to tropical America. The seeds of this plant are often used in the food industry, but the leaves are underutilized. In the southeastern region of Mexico, the annatto leaves are used in the traditional Mayan medicine. While the dosage and the quality remain unclear, and we studied the chemical profile and...

The essential oils obtained by hydrodistillation from leaves and flowers of Montanoa speciosa collected in southeastern Mexico (Yucatan) were analyzed by GC-MS. A total of 71 and 79 components, representing 98.44% and 97.69% of the leaf and flower oils, respectively, were characterized. The main constituents found were β-caryophyllene (20.73%, 17.9...

Starch is widely used in industry. However, it must be modified to improve its properties and broaden its applications. The objective of this study was to investigate the effects of reaction time and pH on the main properties of Oxidized Ramon starch (OS). Samples of Native Ramon starch (NS) were oxidized with sodium hypochlorite (3.0 g active chlo...

The aim of this study was to evaluate the physico-chemical characteristics and fatty acid profile of the meat and subcutaneous fat of the Mexican Hairless Pig (MHP) fed with Moringa oleifera meal (MOM). Fifteen pigs of the genotype MHP were used, nine castrated males and six females, which were randomly distributed into three groups. The first grou...

The honey of stingless bees is produced by bees of the subfamily Meliponini, which are raised by indigenous cultures in many regions of the world. These bees store the honey in “botijas” (bottle-shaped containers) elaborated with a mixture of wax and resins. Due to the growing interest in the use of Meliponinae honey and its commercialization, it h...

Response surface methodology was used to optimize the spray-drying process for the development of stingless bee honey powder. The independent variables were: inlet air temperature (110–150 oC) and maltodextrin 10DE content (50–70 % wb). The responses were powder yield, moisture, volatiles retention, solubility time, hygroscopicity, bulk loose, and...

In both ancient and modern civilizations, the honey of stingless bees has always been recognized as a natural product of great importance with therapeutic applications, administered orally and topically. Recent publications in the literature have reported that fermentation increased the bioactivity of stingless bee honey and this fact could explain...

Tannin-rich forages have been recently investigated as a valuable alternative for the control of gastrointestinal nematodes in small ruminants. It has been suggested that the anthelmintic activity (AH) exhibited by these materials is related to their tannin content, particularly that of condensed tannins (CT). However, reports on the use of tropica...

The knowledge regarding the physicochemical characteristics of the honey produced by stingless bees is still limited, mainly due to the high diversity of the floral resources and the low production that is inherent to these species. This manuscript describes the physicochemical characterization of 27 honey samples produced by Melipona beecheii, fro...

Background: Banana plantations are affected by environmental factors such as chilling injury, which reduces the quality of fruits and causes losses of up to 50% in the yield of banana and it will be more important in terms of global climate change. Chilling injury of the fruits can also occur during transport and storage at low temperatures, partic...

In chili pepper’s pods, placental tissue is responsible for the synthesis of capsaicinoids (CAPs), the compounds behind their typical hot flavor or pungency, which are synthesized from phenylalanine and branched amino acids. Placental tissue sections from Habanero peppers (Capsicum chinense Jacq.) were immobilized in a calcium alginate matrix and c...

The aim of this study was to determine the antioxidant compounds, antioxidant activity and content of individual phenolic compounds of freeze-dried peel from three tropical fruits grown in Yucatan, México: purple star apple (Chrysophyllum cainito L.), yellow cashew and red cashew (Anacardium occidentale). The freeze-dried peels were good source of...

The volatile compounds of black sapote fruit were isolated by simultaneous distillation-solvent extraction and analysed by gas chromatography-fame ionization detector and gas chromatography-mass spectrometry. A total of 32 volatile constituents were detected, which represented 4.57 mg kg-1 of the fruit. The composition of volatile constituents of t...

The aim to the study was to determine the physicochemical composition, bioactive compounds and antioxidant activity of fruits from Yucatan, Mexico such as star apple, cashew, mombin, mamey sapote, white sapote, sugar apple, sapodilla, dragon fruit, nance, ilama, custard apple, mamoncillo and black sapote. The physicochemical characteristics were di...

The habanero pepper (Capsicum chinense Jacq.) is very aromatic and is the hottest pepper in the world. In this study, a headspace solid-phase microextraction/gas chromatography–mass spectrometry (HS-SPME/GC–MS) method was developed to evaluate the volatile compounds that contribute to the aroma of Yucatan habanero pepper. The optimization of the ex...

An experiment was conducted during the year 2010 to evaluate the effect of the treatment with 1- methylcyclopropene (1-MCP) on the ripening process of sapodilla fruits, after refrigeration. The fruits were exposed to 0 and 1 μL/L of 1-MCP for 24 h in airtight chambers at 25°C, after which they were stored at 16°C for four periods of refrigeration (...

The objective of this work was to determine the chemical composition of crude oil from the seeds of pumpkin and mamey fruits grown in the Yucatan, Mexico. Through the extraction method utilized, it was possible to obtain 50 and 40% of crude oil from pumpkin and mamey seeds, respectively. The refractive index at 40°C and peroxide index of crude oil...

El objetivo del presente estudio, fue determinar el perfil cromatográfico de ácidos grasos en carne fresca y madurada (16 días a 4°C) de dos cortes lomo y pierna de tres grupos genéticos de ovinos de pelo (Pelibuey, Dorper x Pelibuey, Dorper x Blackbelly) en el Estado de Yucatán. La composición de ácidos grasos, fue determinada mediante cromatograf...

The chemical composition of the volatile compounds of peel and leaf oils from Citrus limettioides Tan. cultivated in Yucatan Peninsula was studied by GC and GC-MS. Sixty and sixty-six compounds were identified in the peel and leaf oils, respectively. The chemical components of these oils showed marked differences in chemical composition. The most p...

The chemical composition of the volatile compounds of peel and leaf oils of Cajel orange (Citrus sinensis [L.] Osbeck) cultivated in Yucatan Peninsula was studied by GC and GC-MS. Twenty-eight and thirty-eight volatile compounds were identified in peel and leaf oil, respectively. The most prominent compounds in the peel oil was limonene (88.1 %), w...

The chemical composition of the volatile compounds of peel and leaf oils from Calamondin (xCitrofortunella microcarpa (Bunge) Wijnands) was studied by GC and GC-MS. Fifty-nine and seventy-two compounds were identified, which represented nearly 100 % of the total composition of the peel oil and leaf oil. The chemical components of these oils showed...

The volatile compounds of sugar apple fruit were isolated by simultaneous distillation-solvent extraction and analysed by gas chromatography-flame ionization detector and gas chromatography-mass spectrometry. A total of 75 volatile constituents were detected, 53 of them were positively identified. The composition of the fruit included 14 monoterpen...

Fruits of pitahaya (Hylocereus undatus) harvested in the state of Yucatán, Mexico, were carried to the Laboratory of Science and Food Technology of Instituto Tecnológico de Mérida. Was evaluated in six days the effect of the time of storage of fruit at environment temperature (26 °C + 2 y 70 % of HR), on some of their characteristics biochemical-­‐...

The effect of 1-methylcyclopropene (1-MCP) on ripening and chilling injury in sapodilla fruits was investigated. Sapodilla fruits were treated with four different concentrations of 1-MCP (0.0, 0.2, 0.5 or 1.0 μL/L) and two exposure times (12 or 24 h) in sealed chambers under different temperatures (15 and 25°C). Following the previous treatment, fr...

The extraction of anthocyanins present in the skin of the dragon fruit was performed using trifluoroacetic acid (TFA) plus a mixture of methanol, acetic acid and water; the anthocyanins were then purified with a LC-18 cartridge, using methanol acidified with TFA as eluent, reaching concentrations of 44.3865 ± 1.3125 mg/100g of sample. The extracts...

The browning of fruits can be considered as an enzymatic oxidation which is believed to be one of the main causes of quality loss during post-harvest handling. The enzymes responsible for this are the oxidoreductases; the polyphenol oxidase (PPO) (monophenol, o-diphenol, oxygen oxidoreductase; EC 1.14.18.1) belongs to this group. This enzyme, which...