Slađana Stajčić

ORCID: 0000-0002-0611-0011
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Research Areas
  • Phytochemicals and Antioxidant Activities
  • Microencapsulation and Drying Processes
  • Bee Products Chemical Analysis
  • Botanical Research and Applications
  • Natural Antidiabetic Agents Studies
  • Antioxidant Activity and Oxidative Stress
  • Freezing and Crystallization Processes
  • Insect and Pesticide Research
  • Food Science and Nutritional Studies
  • Proteins in Food Systems
  • Food Quality and Safety Studies
  • Food Industry and Aquatic Biology
  • Sensory Analysis and Statistical Methods
  • Fermentation and Sensory Analysis
  • Polysaccharides Composition and Applications
  • Plant Gene Expression Analysis
  • Horticultural and Viticultural Research
  • Hibiscus Plant Research Studies
  • Meat and Animal Product Quality
  • Agricultural and Food Sciences
  • Free Radicals and Antioxidants
  • Consumer Attitudes and Food Labeling
  • Nuts composition and effects
  • Polysaccharides and Plant Cell Walls
  • Food Drying and Modeling

University of Novi Sad
2015-2024

Pokrajinski Sekretarijat za Nauku i Tehnološki Razvoj
2012

One of the great problems in food production are surplus by-products, usually utilized for feeding animals and preparation dietary fibre or biofuel. These products represent potential sources bioactive antioxidants colour-giving compounds which could be used pharmaceutical industry as additives. In present study beetroot pomace extract was encapsulated soy protein by a freeze drying method. Process parameters (core: wall ratio, concentration mixing time) were optimized using response surface...

10.3390/molecules21050584 article EN cc-by Molecules 2016-04-30

Aim: The aim of this study was to encapsulate red pepper waste (RPW) bioactives and monitor their stability in yogurt.Methods: RPW extract encapsulated whey protein using spray freeze-drying techniques. Physicochemical characteristics encapsulates were evaluated, better used develop functional yogurt. Retention followed over 21 days storage, sensory analyses assessed.Results: Freeze-dried (FDE) showed like water activity, moisture content, solubility, flowing colour properties, and,...

10.1080/02652048.2019.1668488 article EN Journal of Microencapsulation 2019-09-13

The global interest in natural food colours shows increasing attention towards new product development to replace synthetic colourants, because of the strengthening legislative rules and consumer awareness additives chemicals food. This study was designed evaluate anthocyanin content biological activities press residues from four caneberries: two raspberry (Rubus idaeus, cv. 'Meeker' (RM) 'Willamette' (RW)) blackberry fruticosus, 'Thornfree' (BT) 'Čačanska bestrna' (BC)) cultivars.Analysis...

10.1002/jsfa.6564 article EN Journal of the Science of Food and Agriculture 2014-01-09

In this study, the content of bioactive compounds and antioxidant activity was determined in five selected vegetable microgreens (daikon, i.e., Japanese radish; Chinese red pea; beetroot; onion). Total phenolics chlorophylls were analyzed spectrophotometrically all investigated microgreens. addition, betalains beetroot HPLC analysis used to identify quantify individual phenolic compounds. The by DPPH, ABTS reducing power assays. highest total phenolics, chlorophyll a b found (639.85 mg...

10.3390/pr12081743 article EN Processes 2024-08-20

The aim of this work is to evaluate utilization sweet potato peel as a source bioactive compounds. effect solvents (acetone and acetone/ethanol mixture) on the extraction efficiency total carotenoids phenolics from tuber, flesh peel, antioxidant activity were investigated. Sweet extract stood out in terms was chosen for encapsulation by spray freeze-drying.Encapsulation an effective method improve phytochemical stability entrapping core material with coating agent. In study, freeze-drying...

10.17113/ftb.58.03.20.6557 article EN cc-by Food Technology and Biotechnology 2020-09-21

Strawberry pomace constitutes a promissing source of polyphenolic compounds and possesses notable antioxidant capacity, reducing power α-glucosidase inhibition potential.

10.1039/c4ra14296a article EN RSC Advances 2014-12-11

The main chemical composition, contents of total phenolic (TPh), flavonoid (TF), and monomeric anthocyianin (TMA), as well the antioxidant activity two raspberry cultivars (Meeker Willamette), blackberry (Cacanska bestrna Thornfree) wild bilberry were studied. had highest solids among fruits investigated. Bilberry sugar-to-acid ratio. Blackberry richer in crude fibers (cellulose) comparison to fruits. content pectic substances was bilberry. Also, a TPh (808.12 mg GAE/100 g FW), TF (716.31...

10.2298/apt1243093s article EN cc-by-nc-nd Acta periodica technologica 2012-01-01

1. Ahmed, M., Akter, M.S., Lee, J.C., Eun, J.B. (2010). Encapsulation by spray drying of bioactive components, physicochemical and morphological properties from purple sweet potato. LWT - Food Science Technology, 43, 1307-1312. CrossRef Google Scholar

10.31883/pjfns/115153 article EN Polish Journal of Food and Nutrition Sciences 2020-02-12

Objective: Goji fruit extracts, methanol (MGE) and hexane (HGE), were subjected to evaluation as potential source of phenolic antioxidants antiradical activity.Methods: Some compounds (gallic, protocatechuic, vanillic, chlorogenic, coumaric, caffeic ferulic acid catechin rutin), vitamin C carotenoids identified quantified by HPLC. Antioxidant activity was tested measuring ability scavenge DPPH hydroxyl radicals. Also, reducing power goji extracts determined.Results: HPLC analysis results...

10.1080/07315724.2016.1142404 article EN Journal of the American College of Nutrition 2016-10-06

BACKGROUND:Considerable amounts of polyphenolic antioxidants remain in the press-cake during processing berry fruits. OBJECTIVE:The aim this study was to investigate profile, antiradical and hepatoprotective activities wild bilberry (WBI) blackberry cv. Čačanska bestrna (C BL) Thornfree (TBL) pomace extracts. METHODS:Polyphenolic profiles extracts were determined by HPLC. vitro confirmed with electron spin resonance (ESR) spectroscopy. In vivo antioxidant properties evaluated following...

10.3233/jbr-180362 article EN Journal of Berry Research 2019-04-16

In this study sour cherry pomace was extracted with food-grade solvent (50% ethanol), concentrated and stabilized in whey soy proteins by encapsulation. Soy exhibited higher encapsulation efficiency (94.90%), but not significantly (p<0.05), from (90.10%). Storage properties of (WP) protein (SP) encapsulates terms total polyphenols, anthocyanins antioxidant activity were tested for 6 weeks. At the end storage period retention polyphenols SP WP similar (67.33 69.30%, respectively), while...

10.17344/acsi.2016.2789 article EN cc-by Acta chimica slovenica 2017-06-15

Carrot is an important root vegetable rich in bioactive compounds like carotenoids and polyphenols with appreciable levels of several other functional components having significant health-promoting properties. Utilization limited due to their instability. Encapsulation one the alternatives used improve carotenoid stability. The objectives this study were optimize extraction encapsulation from carrot. Freeze-dried carrots extracted by conventional solvent (CSE) using four solvents, i.e....

10.2298/apt1748261s article EN cc-by-nc-nd Acta periodica technologica 2017-01-01

Artificial neural network (ANN) development to find optimal carriers (pea protein-P, maltodextrin-M, and inulin-I) mixture for encapsulation of pumpkin waste bioactive (β-carotene phenolics).Freeze-drying encapsulates characterisation in terms contents efficiencies, water activity, hygroscopicity, densities, flowability, cohesiveness, particle size (laser diffraction), solubility, colour (CIELab), morphological (SEM), stability release properties.Optimal encapsulates, OE-T (with highest...

10.1080/02652048.2022.2094485 article EN Journal of Microencapsulation 2022-05-19

The changes in total phenol and flavonoid content, as well antioxidant activity was monitored acacia honey supplemented with prunes 20, 30 40% mass concentrations. phenolic content increased by 2.5 times (from 16.18 to 41.64 mg GAE/100 g) increasing concentration of honey, while the increase even higher, approximately 11.5-fold 2.65 30.86 RE/100 g). addition also improved honey. samples highest prunes, 40%, exhibited best measured hydroxyl radical sacvenging assay (EC50 ?OH=4.56 mg/ml),...

10.2298/apt1243293t article EN cc-by-nc-nd Acta periodica technologica 2012-01-01

(1) Background: In this study, bioactive compounds (phenolics and betalains) extracted from beetroot were stabilized by encapsulation with maltodextrin soy protein the freeze drying method. Stability of bioactivities in a extract encapsulates during 60 days storage at 4 °C (without light) 25 (with without investigated. (2) Methods: Contents bioactivity (antioxidant activity DPPH, RP, ABTS tests; anti-inflammatory antihyperglycemic activity) determined. Improvement stability bioactives’...

10.3390/pr12071345 article EN Processes 2024-06-28

Sprouting is a process that can improve nutritional and beneficial properties of seeds. This work studies the design new healthier product salt seasoned with freeze-dried powdered cereal sprouts. The sprouts mixture (SM), including barley (BS), oat (OS), wheat (WS), was optimized in terms total phenolic content (TPh) antioxidant capacity (AC). optimal features (OSM), composed 92.9% BS, 0% OS, 7.1% WS, had 482.82 mg GAE/100 g polyphenols 797.97 µ mol TE/100 capacity. HPLC analysis showed most...

10.1155/2019/7184293 article EN cc-by Journal of Chemistry 2019-02-13

Samples of three types honey: polyfloral (PH), linden (LH) and acacia (AH,) without with addition dried cherries (40%) were analyzed before after months storage. The total phenol (TPh), flavonoid (TFd) anthocyanin (TAn) contents, antioxidant activities sensory properties honeys the dry evaluated. TPh TFd increased to honey, while enriched showed high TAn. LH sample highest anthocyanins content (41.41mgCGE/100g). activity in honey DPPH? test reducing power. PH exibited best antiradical...

10.2298/apt1546103v article EN cc-by-nc-nd Acta periodica technologica 2015-01-01

Utilization of carotenoids as a nutraceutical ingredients or natural colorants within foods is currently limited due to their instability. Encapsulation one the prominent means used improve carotenoid stability. In this study content bioactive compounds (lycopene, ?-carotene and phenolics) antioxidant activity (DPPH, ABTS, superoxide anion reducing power test) were investigated in tomato waste extract. Based on obtained results, showed high contents lycopene (13.72 mg/100 g DW), (12.36 DW)...

10.2298/apt2051149s article EN cc-by-nc-nd Acta periodica technologica 2020-01-01

The processing of fruits results in high amounts waste materials without having any significant commercial values. Fruit wastes represent an important source phytochemicals with human health benefits, so isolation and further utilization these compounds is issue agro-industrial management. New aspects concerning the use for production food additives or supplements nutritional value have gained increasing interest because are economically attractive high-value products. This study discusses...

10.2298/apt1849169s article EN cc-by-nc-nd Acta periodica technologica 2018-01-01

In this study freeze-drying and oven-drying (at 50 65 ?C) were applied for the preparation of dried pumpkin waste. The effect drying methods on physical properties (moisture content, water activity, hygroscopicity, solubility, bulk tapped density, flowability colour), content bioactive compounds (carotenoids phenolics) antioxidant activity investigated. Also, influence one-year storage at ?20 ?C waste was examined. Results indicated that method showed a significant impact investigated...

10.2298/jsc230517043s article EN cc-by Journal of the Serbian Chemical Society 2023-07-25

Carrot is considered to be rich in bioactive antioxidants, both lipophilic (carotenoids) and hydrophilic (phenolic compounds). In the present study, conditions for accelerated solvent extraction (ASE) of compounds from carrots (Daucus carota L.) were optimized using response surface methodology (RSM). Box?Behnken design was employed experimental obtain combination temperature, time, number cycles. Total carotenoid content (TCar), total polyphenol (TPh), free radical scavenging activity (SA)...

10.2298/jsc180531068s article EN cc-by Journal of the Serbian Chemical Society 2018-01-01
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