Paulina Nowicka

Wrocław University of Environmental and Life Sciences · Department o Fruit, Vegetables and Plant Nutraceutical Technology

The present study aimed to evaluate the content of polyphenols and carotenoids as well as the health-promoting properties (antioxidant, antidiabetic, antiobesity, antiaging, and anti-inflammatory activities) in selected peaches cultivated in Poland. The qualitative analysis of the tested cultivars showed that the content of polyphenols was dominate...

Black garlic is obtained from regular garlic (Allium sativum L.) through the aging process and consequently gains many health-promoting properties, including antidiabetic and antioxidant. However, the material is still prone to microbiological deterioration and requires a long time to dry due to its properties. Therefore, this study aimed to invest...

Using a multi-analytical approach, this paper aimed to investigate the effect of apple juice enrichment with Arbutus unedo and Diospyros kaki fruits, Myrtus communis berry extract, Acca sellowiana, or Crocus sativus flower by-products on both bioactive compounds content and antioxidant activity. Physico-chemical parameters, vitamin C, sugars, organ...

The drying process is used in the food industry to increase the shelf-life of food products without adding preservatives. In this study, using a combination of osmotic dehydration (OD), convective, and microwave-vacuum drying technologies, carrot snacks were prepared using four colored carrot varieties (purple, orange, yellow, and white carrots), t...

Background: Carrot is a popular vegetable consumed by people of all age groups and is used in various food products because of its high nutritional content, especially vitamin A. Results: In the present study, colourful fresh carrot juices of 12 carrot varieties were investigated for in-vitro antidiabetic, antiaging, and anti-obesity activities...

The aim present of the present study was to examine the nutritional (fat, fatty acids, minerals, sugars) and bioactive compounds (polyphenols, tocochromanols, triterpene) and their influence on in vitro anti-diabetic (pancreatic α-amylase and intestinal α-glucosidase), anti-obesity (pancreatic lipase) and anti-cholinergic (AChE and BuChE) inhibitor...

Non-commercial hybrid grapevine cultivars, usually used for dessert purposes or as ornamental garden plants, may contain a wealth of bioactive substances and thus can be regarded as highly valuable food resources. Antioxidant properties and selected groups of polyphenolic components in the three fractions of fruits: peel, pulp and juice; of five hy...

The aim of this study was to investigate the content of phenolics, free amino acids, tocopherols, tocotrienols and in vitro biological activities (α-amylase, α-glucosidase, and pancreatic lipase inhibition activity) of 12 cultivars of Chaenomeles × superba, japonica and speciosa leaves. In the present work 39 phenolic compounds were tentatively ide...

In this study, an attempt was made to develop shortcrust pastries containing different amounts of chokeberry pomace (0%, 10%, 30%, 50%), modulating their degree of sweetness via the application of sucrose or erythritol. The obtained products were assessed for their nutritional value (energy value, protein, fats, dietary fibre, sugars, minerals). Bi...

The functional food market has been in a state of constant expansion due to the increasing awareness of the impact of the diet on human health. In the search for new natural resources that could act as a functional ingredient for the food industry, microalgae represent a promising alternative, considering their high nutritional value and biosynthes...

Twelve carrot varieties in different colours and sizes were investigated for chemical properties (dry matter, ash, pectins, titratable acidity, and pH), contents of vitamin C, sugar, organic acids, mineral (sodium, potassium, calcium, iron, and magnesium), and anti-oxidant activities (ABTS, FRAP, and ORAC). Moreover, total polyphenolics and total t...

In view of the limited information available in the literature concerning leaves as by-products of Prunus armeniaca cultivation, the aim of this work was to identify and characterize their principal polyphenolic constituents by LC-ESI-QTOF-MS/MS and screening in vitro biological potency as antioxidant capacity (ABTS, online ABTS, FRAP, ORAC), antid...

The aim of this present study was to comprehensively investigate polyphenolics by Liquid Chromatography– Quadrupole Time–of–Flight–Electrospry Ionization Mass Spectrofotometer (LC-QTOF/ESI-MS), amino acids, triterpene compounds, minerals, and organic acids, perform detailed analysis of sweet and sour cherry (S^Sch) fruits and leaves, and evaluate a...

This paper presents characterization of healthy potential new sources of functional constituents with reference to basic plant sources. In this study, the phenolics, triterpene, isoprenoids (chlorophylls and carotenoids), amino acids, minerals, sugars and organic acids of different cultivars of pome species-apple, pear, quince-leaves vs. fruits and...

This study aimed to evaluate the feasibility of microencapsulating chokeberry extract by extrusion, and assess the effects of the selected carrier substance on the contents of polyphenolic compounds, antioxidant activity, color of microspheres, and ability of microspheres to inhibit α-amylase and α-glucosidase, after 14 and 28 days of storage. The...

This study aimed to identify and quantify triterpenoids, phenolic compounds (by UPLC/ESI-Q/TOF-MS) and minerals (by FAAS) of the anatomical berry parts (skin, flesh, endocarp, seed), branches and leaves of seven sea buckthorn cultivars. The flavonols exceeded 0.7 g/100 g dry weight of leaves and skins. The ratio of quercetin to isorhamnetin derivat...

The aim of this study was to determine the effect of different drying methods – freeze drying, spray drying and vacuum drying (at 50, 70, 90 °C) – on the quality factors of Japanese quince polyphenol extract, including physical parameters, phenolic compounds, and in vitro biological activities (antioxidant, anti-diabetic, anti-obesity, and antichol...

Inoculation of sourdough allows the fermentation medium to be dominated by desired microorganisms, which enables determining the kinetics of the conversion of chemical compounds by individual microorganisms. This knowledge may allow the design of functional food products with health features dedicated to consumers with special needs. The aim of the...

The nutritional prohle of seeds from eighteen Chaenomeles species and cultivars was determined using ultraperformance liquid chromatography (UPLC) and atomic absorption spectrometry (AAS). This is the hrst comprehensive attempt to determine the prohle and content of sugars, organic acids, polyphenols, triterpenes, tocochromanols and minerals in Cha...

BACKGROUND Juices are currently the fast growing segment in the fruit and vegetable industry sector. However, there are still no reports on the diversity of phytochemical profile and health-promoting properties of commercial sea buckthorn (Hippophaë rhamnoides) juices. This study aimed to identify and quantify phytoprostanes, phytofurans (UHPLC-QqQ...

The present study aimed to evaluate the effect of Jerusalem artichoke processing methods and drying methods (freeze drying, sublimation drying, vacuum drying) on the basic physicochemical parameters, profiles and contents of sugars and polyphenolic compounds, and health-promoting properties (antioxidant activity, inhibition of the activities of α-a...

Twelve carrot varieties with different colours (purple, orange, yellow, and white) and sizes (normal, mini, and micro) were analysed for prospective health benefits (activities against diabetes-, obesity-, and aging- related enzymes—α-amylase, α-glucosidase, lipase, acetylocholinesterase, and butyrylocholinesterase, respectively) and nutritional co...

This study focused on the qualification (by LC-MS/qTof) and quantification (by UPLC-PDA) of carotenoids and chlorophylls of the fruit tree leaves (FTL) of commonly consumed fruits: apple, pears, quince, apricot, peach, plums, sweet and sour cherry. The FTL were collected at 2 time points: after tree blooming and after fruit collection. In FTL 7 car...

The aim of this study was to determine the effect of different drying methods: convective (at 50, 60, 70 °C), vacuum-microwave (at 120, 240, 360, 480 W and 360 W with reduction to 120 W) and hybrid (convective pre-drying at 50, 60, 70 °C followed by vacuum-microwave drying at 120 W) on the quality parameters of novel red-fleshed apple fruit snacks...

Osmotic dehydration (OD) performed in concentrated fruit juices used as osmotic solution (OS) comes with some limitations resulting from the material cell structure and is not entirely recognized at the moment. Filtration of the juice could provide some insight into the phenomena occurring throughout the OD. Therefore, the main aim of the study was...

BACKGROUND: Obesity and type 2 diabetes mellitus are the most extended current chronic diseases and also Alzheimer pathology which is a progressive degenerative neurological disorder. Therefore, finding effective enzyme inhibitors responsible for the development of these diseases are essential. Therefore, the aim of this study was to investigate th...

The aim of the study was to analyze potential health-promoting and nutritional components (polyphenols, L-ascorbic acid, carotenoids, chlorophylls, amino acids, organic acid, sugars, ash and pectins) of selected sprouts (radish, lentil, black medick, broccoli, sunflower, leek, beetroot, mung beans) and microgreens (kale, radish, beetroot, green pea...

This study aimed to identify and quantify carotenoids, chlorophylls, tocopherols, tocotrienols and the free amino acid profile of 19 fruit cultivars of Chaenomeles × superba, Chaenomeles japonica, and Chaenomeles speciosa. For this purpose ultra-performance liquid chromatography (UPLC) with a photodiode array (PDA) and fluorescence (FL) detector co...

The aim of this study was to determine the effect of osmotic dehydration (OD) using fruit concentrates (apple, pear, pineapple, sour cherry, blackcurrant, and chokeberry), before combined drying involving convective drying and vacuum-microwave finish drying, on the drying kinetics and physiochemical parameters (dry weight, water activity, content o...

Sea buckthorn (Hippophaë rhamnoides L.) juicewith inulin,maltodextrin, and inulin:maltodextrin (1:2 and 2:1) were spray-, freeze- and vacuum-dried at 50, 70 and 90 °C. The study aimed to assess the impact of drying methods and carrier agents on physical properties (moisture content, water activity, true and bulk density, porosity, color parameters,...

Fruit powders can become a new and innovative direction of using the potential of Japanese quince (JQ) fruit in an affordable form. Therefore, physical (dry matter, true and bulk density, porosity and color) and chemical parameters of JQ juice powders obtained by using different carrier agents and drying techniques were evaluated. The juice was mix...

This study aimed to identify by UPLC-PDA-Q/TOF-MS and quantify by UPLC-PDA phenolic compounds (26 flavonols and 2 phenolic acids) and carotenoids (16) from berries of different cultivars of Hippophaë rhamnoides and determine correlations between these variables and in vitro anticholinergic and on-line antioxidant potential. Isorhamnetin derivatives...

The aim of the study was to evaluate the effect of different assisting conditions (i.e., ultrasounds, vacuum, microwaves) during osmotic dehydration (OD) on the mass transfer kinetics and quality of dehydrated apple slices. The results of the study showed that the applied process conditions had a significant influence on the mass transfer with high...

This study aimed to identify and quantify the chemical composition and polyphenolic profile of 19 cultivars of Chaenomeles × superba, Chaenomeles japonica, and Chaenomeles speciosa by liquid chromatography coupled with photodiode array detector and quadrupole time-of-flight electrospray ionization mass spectrometry (LC-PDA-QTOF-ESI-MS). Antioxidant...

The aim of the study was to identify and evaluate the content of iridoids and phenolic compounds in the leaves and roots of Dipsacus fullonum L. They were identified and quantified by UPLC-PDA-MS/MS. Five iridoid compounds (loganic acid, loganin, sweroside, cantleyoside, and sylvestroside III) were identified in Dipsacus fullonum L. leaves and root...

The aim of this study was to analyze in vitro biological activities as anti-oxidant, anti-α-amylase, anti-α-glucosidase, anti-lipase, and anti-lipoxygenase activity, relative to bioactive components (phenolic acids, flavonols, xanthophylls, carotenes, esterified carotenoids, tocopherols, tocotrienols, and fatty acids) and the basic chemical composi...

The aim of the study was to analyze potential health-promoting components of caper flower buds (Capparis spinosa L.) at six stages of development in two cultivars. Polyphenol compounds (flavonols, hydroxycinnamic acids, flavan-3-ols) were identified by Liquid Chromatography– quadrupole Time–of–Flight –Mass Spectrofotometer/Mass Spectrofotometer (LC...

The aim of this study was to determine the effect of different drying methods – convective drying (at 50, 60, 70 °C), vacuum-microwave drying (at 120, 240, 480 W and 480 W with reduction to 120 W), a combination (of convective pre-drying (at 50, 60, 70 °C) and by vacuum-microwave finish drying (at 120 W)) and freeze-drying – on the quality factors...

Classical extraction methods used for an isolation of active substances from the plant material are expensive, complicated and often environmentally unfriendly. The ultrasonic assistance micelle-mediated extraction method (UAMME) seems to be an interesting alternative. The aim of this work was to compare an efficiency of water solutions of three no...

In this study, the polyphenols content, α‐amylase, α‐glucosidase and cholinesterase‐inhibiting activities of cloudy peach (Prunus persica) juices, were measured immediately after thermal treatment and after storage (6 months at 4 and 30 °C). The study showed that some cultivars were more useable for industry than others. Due to the high content of...

In this study, 16 selected edible flowers were evaluated for their content of bioactive compounds (polyphenols, carotenoids, triterpenoids) and for their anti-diabetic (ability to inhibit α-amylase and α-glucosidases) and anti-aging (ability to inhibit acetylcholinesterase and butyrylcholinesterase) activities. Most of the flowers analyzed in this...

This study was to present the effect of different parameters of combined methods of drying such as vacuum-microwave (VMD: 480, 120 W), hot air (CDD: 70, 60, 50 °C) and combined methods as pre-drying by CD and finish drying by VMD (CD-VMD: 60 °C + 480/120W) in order to avoid a rapid increase in temperature at the critical moisture content of ca. 1 k...

The aim of this study was to characterize in detail 25 sour cherry cultivars and provide data on their industrial processing into high-quality sour cherry cloudy juices (ScCJ). Anthocyanin composition was identified and quantified by LC-PDA-ESI-MS QTof, UPLC-PDA. Kinetic degradation (k × 103, t1/2, D value) and color (CIE La*b*) were measured befor...

This manuscript presents results of the qualitative characteristics of strawberry cloudy juice and beverages with the addition of 0.2% and 0.3% of carboxymethylcellulose (CMC), guar gum (GG), locust bean gum (LBG), and xanthan gum (XG). Fresh products were evaluated with reference to their sensory quality (5-point scale). Changes in L*a*b* paramete...

In this study, the content of bioactive compounds (polyphenols and tetraterpenoids), antioxidative activity, and inhibitory activities toward α-amylase, α-glucosidase, cholinesterase of different cultivars of peach kernels were measured. Such results have not been published so far. It has been shown that peach kernels were characterized by a simila...

The aim of this study was to determine the chemical composition in different cultivars of Prunus persica L. fruits with special focus on polyphenols, carotenoids, sugars and organic acids content. In addition, the PCA model was applied to all data to determine the most important variables that explain the relationships between twenty selected culti...

The aim of the study was to analyze the chemical composition of new artichoke cultivars and hybrids and to assess their potential health-promoting properties. Polyphenols, carotenoids and chlorophylls were identified by liquid chromatography-photodiode detector-mass spectrometry/quadrupole time of flight (LC-PDA-MS/QTof) and quantified by ultra per...

The aim of this study was to analyze phenolic compounds and in vitro biological activity of seeds, skins and flesh of V. vinifera cultivars and interspecific hybrids grown in Poland. Their phenolic profile was analyzed using LC-PDA-MS-QTOF and UPLC-PDA-FL and 48 compounds were identified, including nine phenolic acids, one stil-bene, 12 anthocyanin...

This study discusses polyphenolic compounds identified and quantified in Actinidia arguta fruits by LC-MS-PDA-Q/TOF method and in vitro anticholinergic activity. Notably, of 31 compounds, including 16 flavonols, 7 flavanols, 7 phenolic acids, and 1 anthocyanin were identified or tentatively identified on the basis of their retention times, accurate...

The presented study provides important insights on the health properties of Prunus persica fruit related to their polyphenol and carotenoid profiles, antioxidant capacity and in vitro potential to inhibit enzymes relevant to type 2 diabetes (α-amylase, α-glucosidase) and obesity (pancreatic lipase) management. Such results have not been published s...

Classical extraction methods used for an isolation of active substances from the plant material are expensive, complicated and often environmentally unfriendly. The ultrasonic assistance micelle-mediated extraction method (UAMME) seems to be an interesting alternative. In this study the Calendula Anthodium UAMME extracts composition and their antio...