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Simulation And Analysis Of Forced Air Precooling Performance Of Apples With Different Fruit Diameters, Tian Jinjin, Gu Xudong, Zhang Zhe, Zhu Zhiqiang, Ji Xian

Food and Machinery

Objective: To analyze the effect of apples of different fruit diameters on differential pressure precooling under the same box. Methods: Based on the spherical analogy model and heat transfer theory, the CFD unsteady SST k-ω turbulence model was used to numerically simulate the differential pressure precooling of apples with different air supply air speed, temperature, box opening size and fruit diameter, and three different working conditions were selected for accuracy. The simulation scheme of mixed orthogonal test was used to discuss the effects of different factors and different fruit diameters on the cooling rate and pre-cooling uniformity. Results: …

Study Of Quality Changes In High Moisture Wheat After Hot Air Drying, Fan Mengke, Chen Pengxiao, Liu Ye, Zhu Wenxue, Jiang Mengmeng, Zhang Yurong, Wang Xiaowan, Wu Jianzhang

Food and Machinery

Objective: To study the effects of different drying processes on the quality of high moisture wheat. Methods: Investigates the changes of wheat quality under different drying processes in three dimensions: appearance quality, nutritional quality and processing quality. Three indicators, namely colour, wet gluten content and drying rate, were selected as response values and combined with response surface analysis to predict the optimal drying process for high moisture wheat. Results: Drying temperature was the main influencing factor. As the temperature increased, the colour of the wheat deepened, the crude protein content decreased, the wet gluten content decreased, the water absorption of …

Phenolic Compositions And In Vitro Antioxidant Activities Of Tartary Buckwheat Wine Lees, Zhao Jiawei, Zheng Jia, Li Mao, Zhang Weijian, Yan Junlin

Food and Machinery

Objective: Explored the composition and content of phenolic compounds in tartary buckwheat wine lees, and study their antioxidant activity. Methods: Phenolic compounds in tartary buckwheat wine lees were analyzed by HPLC and LC-MS. And evaluating its antioxidant activity. Results: 7 phenolic compounds were identified from tartary buckwheat wine lees, including 5 flavonoids, with the highest content of rutin of （9.350±0.050） mg/g, followed by quercetin, isoquercetin, kaempferol-3-o-rutoside and kaempferol of two phenolic compounds. At 0.5 mg/mL, the scavenging rates of hydroxyl free radical, ABTS⁺ and DPPH free radical reached （73.29±0.09）%, （96.21±0.25）% and （82.55±0.68）%, respectively, with FRAP value of …

Changes Of Volatile Aroma Components And Biochemical Components In Fenghuang Dancong Tea During Processing, Li Zhangwei

Food and Machinery

Objective： This study aimed to optimize the processing technology of Fenghuang dancong tea. Methods： Headspace solid phase microextraction (HS-SPME), Gas chromatography-mass spectrometry (GC-MS), and spectrophotometer were used to extract, determine and analyze the volatile aroma and non-volatile biochemical components of Fenghuang dancong tea in different stages of processing. Results: The alcohols, aldehydes, ketones and esters showed a decreasing trend while the alkanes and aromatic ring substances exhibited an increasing trend during the processing. The contents of tea polyphenols, amino acids, caffeine, and catechin in non-volatile biochemical components decreased gradually during processing. The contents of soluble sugar and water extract increased …

Optimization Of Extraction Process And Structural Characterization Of Polysaccharides From Cornus Officinalis, Xiao Fucai, Li Yingkui, Huang Fei, Gu Junhua

Food and Machinery

Objective: This study aimed to optimize the microwave assisted aqueous two-phase extraction (MATPE) process of polysaccharides from Cornus officinalis and obtain a uniform polysaccharide fraction. Methods: The best extraction technology was determined through an orthogonal experiment. To obtain a uniform polysaccharides fraction (COP-2-S), the crude extract of C. officinalis polysaccharides was purified using DEAE-52 cellulose and Sephadex G-100 column chromatography. The molecular weight of COP-2-S was determined by high performance gel permeation chromatography. The monosaccharide composition of COP-2-S was determined by gas chromatography. The structure of COP-2-S was characterized by UV, and IR spectra, and a scanning electron microscope. Results: …

Effect Of Different Drying Methods On The Edible Quality Of Tibetan Pork Jerky, Lin Hua, Xu Daohuang

Food and Machinery

Objective: This study aimed to investigate the effect of different drying methods on the edible quality of dried Tibetan pork. Methods: The effects of four drying methods, namely frying, pre-cooking-frying, baking, and pre-cooking-baking, on the edible quality of Tibetan pork jerky were investigated using Tibetan pork as raw material. Results: Different drying methods had significant effects on the quality indexes of dried Tibetan pork such as color rendering, textural characteristics, and nutrient component. Among them, the frying group had the highest sensory score, uniform color, rich meat flavor, moderate hardness, and good eating quality. The baking group had a higher …

Research Progress On Extraction, Structural, Functional Properties And Applications Of Tuber Polysaccharides, Li Pan, Zeng Xiangquan, Li Qianqian, Li Jian

Food and Machinery

Polysaccharides are the main active ingredients of edible fungi, which have been widely utilized in the food industry. As a member of the truffle family, Tuber are rich in polysaccharides. Previous studies mainly focused on solvent, ultrasound-assisted, microwave-assisted, enzyme-assisted and pressurized liquid extractions regarding the extraction methods of Tuber polysaccharides. The molecular weight, monosaccharide composition and content, configuration, and ligation mechanism of sugar residues, along with the polysaccharide types of Tuber polysaccharides, have all been studied in relation to the characterization of chemical structures. Additionally, the antioxidant, antitumor, hypoglycemia, anti-fatigue, and immunomodulatory activities have been evaluated as well. In food …

Applications Of Modified Dietary Fibers In Flour Products, Pei Lina, Luo Denglin, Li Peiyan, Yue Chonghui, Bai Zhouya

Food and Machinery

Flour loses a large amount of dietary fiber (DF) during precision processing, which is considered an important component of a healthy diet and has various physiological activities. This review introduces the common modification methods of DF and summarizes the change rules and reasons of physical and chemical properties and physiological activities of DF after modification. Additionally, the applications of DF in dough, biscuits, noodles, bread, steamed bread and cakes are discussed. The current issues and potential future development paths are also highlighted.

Research Progress Of Mung Bean Pre-Curing Technology And Quality, Qu Meilin, Hu Junjun, Cheng Zhe, Li Yunlong

Food and Machinery

Mung beans are rich in nutrients, but their dense structure and dense cortex lead to long a maturation time and poor edible convenience. To provide an empirical basis and novel ideas for future research on the pre-ripening of mung beans, this review analyzes pre-ripening, specifically focusing on the pre-ripening process of mung beans and the effects of different processing methods on the edible quality and nutritional components of mung beans. Moreover, the development direction of preripening technology of mung beans is also prospected.

Study On The Optimization Of Sourdough Starter With High Activity, Zhao Jiajia, Gu Yao, Li Yan, Qian Haifeng, Wang Li

Food and Machinery

Objective: This research aimed to study the preparation of standardized and stable sourdough starter, to explore the effects of different drying processes and protective agents on the survival rate of sourdough, and examine its storage activity. Methods: A variety of fruits were selected to prepare sourdough, the fermentation process was studied, and the strains were isolated and identified by ITs and 16s gene sequencing in the database. The optimum scheme was obtained by selecting the drying process, sample state and protectant formulation with the activity after drying and storage activity as indexes. Results: It was found that the bread prepared …

Determination Of Ethylenediaminetetraacetic Acid And Nitrilotriacetic Acid In Water, Wang Xueting, Zheng Bin

Food and Machinery

Objective: A high performance liquid chromatography method was developed to determine EDTA and NTA in water. Methods: The samples were derivatized with ferric chloride, used methanol and a 0.2 mmol/L tetrabutylammonium bromide phosphate buffer solution (pH 2.5) as the mobile phase, separated on a Thermo-C₁₈ (4.6 mm×250 mm) column after gradient elution, detected by HPLC with a diode array detector, and used external standard method for quantitation. Results: The content of EDTA and NTA showed a good linear relationship in the range of 0.1～2.0 mg/L, the correlation coefficients were 0.999 5 and 0.999 2 respectively; The limits of detection …

Effects Of Different Drying Methods On The Quality And Volatile Flavor Components Of Stropharia Rugosoannulata, Wu Kunlong, Li Yanpo, Liu Biao, Chen Zhilong, Xu Yangli

Food and Machinery

Objective: This study aims to investigate the effect of different drying methods on the drying characteristics and volatile flavor of Stropharia rugosoannulata as raw material. Methods： The fresh S.rugosoannulata was dried by freeze-drying, heat pump drying, hot air drying, and microwave drying, and then the physical and chemical indexes were investigated. Results: The contents of crude protein, crude fat, ash, potassium, calcium, total flavonoids, essential amino acids, flavor amino acids and total amino acids are the highest in freeze drying. The six teenamino acids achieved 16.88 g/100 g in the freeze-drying. The rehydration rate and color all play the best …

Usage Of Almond And Thyme Oils For The Enhancement Of Shelf Life Of Different Fish Species, Aneeza Kanwal, Roheela Yasmeen, Saima Nazir, Shumaila Usman, Bushra Nisar Khan

Journal of Bioresource Management

Fish is an important source of protein for millions of people around the globe and it's often a healthier option compared to some other meats. However, the fish industry is facing a storage challenge in the form of rapid spoilage and deterioration of freshness due to bacterial growth and enzymatic activity. The usage of oils in fish can enhance shelf life by creating a protective barrier. This research was designed to see the effects of thyme and almond oil on nutritional profile and shelf life of fish. The three fish species rohu (Labeo rohita), Mali (Wallago attu) …

Increased Nitrate Intake From Beetroot Juice Over 4 Weeks Affects Nitrate Metabolism, But Not Vascular Function Or Blood Pressure In Older Adults With Hypertension, Rebeka Fejes, Martin Lutnik, Stefan Weisshaar, Nina Pilat, Karl-Heinz Wagner, Hans-Peter Stüger, Jonathan M. Peake, Richard J. Woodman, Kevin D. Croft, Catherine P. Bondonno, Jonathan M. Hodgson, Michael Wolzt, Oliver Neubauer

Research outputs 2022 to 2026

The decline in vascular function and increase in blood pressure with aging contribute to an increased cardiovascular disease risk. In this randomized placebo-controlled crossover study, we evaluated whether previously reported cardiovascular benefits of plant-derived inorganic nitrate via nitric oxide (NO) translate into improved vascular function and blood pressure-lowering in 15 men and women (age range: 56-71 years) with treated hypertension. We investigated the effects of a single ∼400 mg-dose at 3 hours post-ingestion (3H POST) and the daily consumption of 2 × ∼400 mg of nitrate through nitrate-rich compared with nitrate-depleted (placebo) beetroot juice over 4 weeks (4WK POST). Measurements …

Biological Control Of Three Major Cucumber And Pepper Pests: Whiteflies, Thrips, And Spider Mites, In High Plastic Tunnels Using Two Local Phytoseiid Mites, Yusuf Abou Jawdah, Nour Ezzedine, Aya Fardoun, Samer Kharroubi, Hana Sobh, Hagop S. Atamian, Margaret S. Skinner, Bruce Parker

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

To enhance food security, food safety, and environmental health, a bio-based integrated pest management (BIPM) strategy was evaluated at two coastal locations in Lebanon as an alternative to toxic pesticide sprays in commercial high-arched plastic tunnels common in many countries. The evaluation occurred during two cucumber and pepper cropping seasons: spring and fall. At each site, two commercial tunnels were used; farmers’ conventional practices were applied in one tunnel, while the BIPM approach was followed in the second tunnel. In the farmers’ practices, a total of 14 sprays of insecticide/acaricide mixtures were applied during the spring growing season, and 6 …

Trans-2-Nonadecyl-4-(Hydroxymethyl)-1,3-Dioxolane (Tnhd) Purified From Freshwater Clams Markedly Alleviates Dimethylnitrosamine-Induced Hepatic Fibrosis, Ya-Ru Kuo, Chen-Yu Tsai, Wei-Sheng Lin, Chi-I Chang, Ching-Shu Lai, Min-Hsiung Pan

Journal of Food and Drug Analysis

Liver fibrosis occurs due to injury or inflammation, which results in the excessive production of collagen and the formation of fibrotic scar tissue that impairs liver function. Despite the limited treatment options available, freshwater clams may hold promise in the treatment of liver fibrosis. In this study, we demonstrated the effects of ethanol extract of freshwater clam (FCE), ethyl acetate extract of FCE (EA-FCE), and trans-2-nonadecyl-4-(hydroxymethyl)-1,3-dioxolane (TNHD) on liver fibrosis induced by dimethylnitrosamine (DMN). Administration of FCE and TNHD alleviated liver injury, including tissue damage, necrosis, inflammation scores, fibrosis scores, serum enzymes, and triglyceride levels. Furthermore, we analyzed the expression …

Mushrooom Production Without Solid Substrates, Alexander Baena, Marshall Porterfield

Graduate Industrial Research Symposium

Novel biotechnological approaches are needed to enhance renewable food production and waste recycling capabilities in resource-constrained environments. Edible mushrooms possess nutritious profiles and represent emerging opportunities to develop circular bioproduction by transforming waste organic materials into food and high-value products. However, traditional mushroom cultivation methods utilizing solid substrates have technical limitations like 1) uneven nutrient diffusion, 2) constant sterilization needs, 3) numerous intermediate steps that are energy and time-demanding, and 4) waste production from bags and jars. This work introduces an innovative hydroponic fungal cultivation system called Mycoponics™ using bioengineered ceramic materials. This liquid-nutrient-based technique optimizes fungal metabolism and facilitates …

Dna Barcoding Methodologies For The Identification Of Fish Species In Cooked Products, Rosalee S. Hellberg

Food Science Faculty Books and Book Chapters

Deoxyribonucleic acid (DNA) barcoding is a sequencing-based method that utilizes a standardized genetic region to identify species in combination with a reference database. DNA barcoding methodologies have been extensively applied to the identification of species in cooked seafood. While the typical genetic target associated with DNA barcoding is a ~650-bp region of the gene coding for cytochrome (cyt) c oxidase subunit I (COI), additional genetic targets include partial regions of the cyt b and 16S ribosomal ribonucleic acid (rRNA) genes. Most categories of cooked seafood can be identified using ~400- to 700-bp regions of these genes; however, canned seafood and …

Effects Of Storage Conditions On Chemistry And Technological Properties Of Different Cultivars Of Chickpea, Shirin Kazemzadeh Pournaki, Atanu Biswas, Clifford Hall

Dairy Science and Food Science Faculty Publications: 2022 to Present

The impact of storage conditions, such as 40 °C, high humidities (55% and 65%), and storage (360 days), on the nutritional value, pasting, and functional properties, color differences, and quality of protein and starch in five Chickpea (Cicer arietinum) cultivars (Crown, Royal, Sierra, Orion, and Frontier) was determined. The Sierra cultivar had the highest initial moisture content (MC, 7.7 ± 0.01%), and MC increased over time for all samples stored at 55% and 65% RH and 21 °C. Protein (PC), total starch (TSC), and fat (FC) contents changed in all cultivars during storage. Under the same storage conditions …

Assessment Of The Impact Of Humic Acids On Intestinal Microbiota, Gut Integrity, Ileum Morphometry, And Cellular Immunity Of Turkey Poults Fed An Aflatoxin B1-Contaminated Diet, Jesus A. Maguey-Gonzalez, Jing Liu, Guolong Zhang, Juan D. Latorre, Juan O. Hernandez-Ramirez, Maria De Jesus Nava-Ramirez, Roberto Señas-Cuesta, Sergio Gomez-Rosales, Maria De Lourdes Angeles, Andressa Stein, Bruno Solis-Cruz, Daniel Hernandez-Patlan, Ruben Merino-Guzman, Xochitl Hernandez-Velasco, Inkar Castellanos-Huerta, Santiago Uribe-Diaz, Alma Vazquez-Duran, Abraham Mendez-Albores, Victor Petrone-Garcia, Guillermo Tellez Jr., Billy M. Hargis, Guillermo Tellez-Isaias

Poultry Science Faculty Publications and Presentations

A recent study published data on the growth performance, relative weights of the organs of the gastrointestinal tract, liver histology, serum biochemistry, and hematological parameters for turkey poults fed an experimental diet contaminated with aflatoxin B₁ (AFB₁) and humic acids (HA) extracted from vermicompost. The negative effects of AFB₁ (250 ng AFB₁/g of feed) were significantly reduced by HA supplementation (0.25% w/w), suggesting that HA might be utilized to ameliorate the negative impact of AFB₁ from contaminated diets. The present study shows the results of the remaining variables, as an extension of …

Effects Of Black Raspberry, Blueberry, And Blackberry Volatile Extracts On Intestinal Barrier Dysfunction And Inflammation In A Caco-2/Raw264.7 Cells Co-Culture Model, Inah Gu, Cindi Brownmiller, Luke Howard, Sun-Ok Lee

Food Science Faculty Publications and Presentations

Berry volatiles are responsible for the aroma of berries. However, their impacts on intestinal inflammation are unclear. Thus, this study investigated the effects of black raspberry, blueberry, and blackberry volatile extracts (BVEs) on intestinal barrier dysfunction and inflammation using a Caco-2/RAW264.7 cells co-culture model. BVE treatments significantly enhanced integrity and decreased permeability in LPS-damaged epithelial monolayers with increased tight junctions. Blueberry and blackberry volatile extract treatments significantly inhibited the LPS-induced overproduction of NO, IL-6, and TNF-α (p < 0.05). BVEs also suppressed the LPS-induced phosphorylation of p65, IKKα, and IκBα. These findings revealed that volatile extracts from black raspberries, blueberries, and blackberries improve intestinal barrier dysfunction by enhancing intestinal epithelial monolayer integrity and exhibit intestinal anti-inflammatory effects by suppressing pro-inflammatory mediator and cytokines through modulating NF-κB signaling pathway. It suggests that the three berry volatile extracts have the potential as functional food components with gastrointestinal protective effects with anti-inflammatory properties.

Knowledge Gaps About Micronutrient Deficiencies In Tanzania And The Effect Of Information Interventions, Pius Kilasy, Brandon R. Mcfadden, Kelly A. Davidson, Leah H. Palm-Forster

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Reducing micronutrient malnutrition (“hidden hunger”) in low-income countries is a global challenge, particularly among women, children, and high-poverty households. Countries like Tanzania have developed diverse strategies to combat malnutrition, including the biofortification of staple foods. However, broad awareness and knowledge of micronutrient deficiencies and beneficial foods are needed for these strategies to be effective. The objectives of this study were to (i) examine Tanzanian consumers' initial awareness and knowledge of deficiencies for four micronutrients and associated biofortified foods, and (ii) to examine the effectiveness of targeted communication approaches (i.e., information and branding) to improve knowledge. Data were collected from 1029 …

Quality Characteristic Of Instant Rice Produced Using Microwave-Assisted Hot Air Drying, Anne Adhiambo Okeyo, Kaushik Luthra, Alan R. Vazquez, Griffiths Atungulu

Food Science Faculty Publications and Presentations

Background and Objectives

It is of utmost importance for the instant rice processing sector to reassess its methodologies to enhance the overall quality of instantized rice products. This study aimed to analyze how the combination of microwave (MW) drying and convective heated air drying influences the quality of instantized rice. Novel approaches for drying precooked rice were explored, involving the utilization of an industrial MW operating at a frequency of 915 MHz with treatment conditions set at 4 kW power for 8 min. This was followed by two distinct convective oven drying strategies, each lasting 4 min. Specifically, stepwise convective …

Current Perspectives And Challenges In The Estimation Of Fruit Juice Consumption Across The Lifecycle In Europe, Janette Walton

Department of Biological Sciences Publications

Fruit juice (FJ) is typically low in energy, contains natural sugars, important amounts of micronutrients and is not permitted to have added sugars/sweeteners. However, its role in a healthy diet is under scrutiny partly due to the wider adoption of the definition for free sugars in nutrition policy. This review aimed to identify data on FJ consumption from national food consumption surveys across Europe, to examine current intakes, percent consumers and its contribution to intakes of energy, total sugars, free sugars, vitamin C, folate and potassium. Data were extracted on the population mean intake of FJ and its contribution to …

Mexican Consumers' Attitudes Toward Irradiated And Imported Apples, André D. Murray, Rosa K. Gallardo, Anuradha Prakash

Food Science Faculty Articles and Research

This study centers on analyzing Mexican consumers' willingness to pay (WTP) for imported US fresh apples subjected to irradiation, contrasting it with the more prevalent postharvest chemical treatments. We collect data using a survey tool in Qualtrics designed to explore the impact of information dissemination through two distinct narrative styles: scientific and layman. The study uses a between-subjects approach and apply the propensity score matching to address potential confounding factors across respondents' samples. We apply the generalized multinomial logit models in WTP space, taking into consideration respondent's certainty when answering to the choice experiment questions. Our findings reveal that respondents …

Data From: Unveiling The Physical Properties Predictive Of Oil Binding Capacity In An Interesterified Palm-Based Fat, Melissa Marsh, Brennan Bean, Farnaz Maleky, Silvana Martini

Browse all Datasets

This paper identifies physical properties of an interesterified palm-based fat (EIEPO) that predict oil binding capacity (OBC). A 100% EIEPO sample, 50% EIEPO sample diluted with 50% soybean oil (SBO), and a 20% EIEPO sample diluted with 80% SBO were used to test how saturation level impacts OBC. All samples were crystallized using either a fast (6.4°C/min) or slow (0.1°C/min) cooling rate as well as with or without the application of high-intensity ultrasound (HIU; 20kHz) to generate a wide range of physical properties. Immediately after crystallization, the sample's physical properties, including crystal microstructure, solid fat content (SFC), viscoelasticity (G', G", …

Effects Of Extraction Methods On The Structural Characteristics And Functional Properties Of Dietary Fiber Extracted From Papaya Peel And Seed, Xiaoyu Feng, Kashif Ameer, Guihun Jiang, Karna Ramachandraiah

School of Medicine Faculty Publications

This study aimed to characterize dietary fibers (DF) produced from papaya peel (PP) and seed (PS) using three different extraction methods (acidic: AC, enzymatic: EN and alkaline: AL). The scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), thermal and rheological properties, X-ray diffraction (XRD), monosaccharide composition were adopted for characterizing DF samples. All the DF samples showed representative infrared spectral features and crystalline structure, whereas DF derived from PP and PS extracted by AC had looser and more complicated structures. DF derived from PP and PS extracted by EN displayed greater thermal stability among DFs. DF extracted by PP-AC …

Development Of Yoghurt Incorporated With Beetroot Puree And Its Effect On The Physicochemical Properties And Consumer Acceptance, Mercia Lionel Adjei, Abena Boakye, Godwin Deku, Nana Baah Pepra-Ameyaw, Antoinette Simpah Anim Jnr, Ibok Nsa Oduro, William Otoo Ellis

Food Science Faculty Articles and Research

Background

Yoghurt is one of the most popularly consumed fermented products which provides several nutritional benefits. Yoghurt products often include flavour and colour additives however, growing awareness of the risks associated with synthetic food additives has necessitated the need to explore more natural colour and flavour as food additives.

Methods

This study evaluated the effect of beetroot puree as flavouring and colourant in yoghurt production and quality. To develop the yoghurt product, incubation time and proportion of beetroot puree were optimized based on the resulting pH, titratable acidity, colour, and viscosity using response surface methods.

Results

Optimum yoghurt formulations were …

Effect Of Different Molecular Weight Hyaluronic Acids On Skim Milk Functional Properties, Rutvi Joshi, Suresh G. Sutariya, Prafulla Salunke

Dairy Science and Food Science Faculty Publications: 2022 to Present

Hyaluronic acid (HA), a naturally occurring polysaccharide with recognized health benefits, has gained approval for use in the food industry as a food additive, ingredient, and health supplement in numerous countries. HA can increase viscosity in solutions and is available commercially in various molecular weights (MW) depending on end applications. Nevertheless, no research has explored the impact of different MW HAs on functionality, rheological properties, and texture-building benefits in the dairy product matrix wherein they are incorporated. Therefore, the objective of this study was to evaluate how varying MWs of HA—specifically 8 kDa, 320 kDa, 980 kDa, and 2550 kDa …

Preferential Binding Of Polyphenols In Blackcurrant Extracts With Milk Proteins And The Effects On The Bioaccessibility And Antioxidant Activity Of Polyphenols, Ting Mao, Fnu Akshit, Iresha Matiwalage, Subha Sasidharan, Caren Meyn Alvarez, Philip Wescombe, Maneesha S. Mohan

Dairy Science and Food Science Faculty Publications: 2022 to Present

Milk proteins are well-known delivery agents; however, there is no clear understanding of the competitive interactions of milk proteins with polyphenols in mixed complex systems. Here, we investigate the preferential competitive interactions of different polyphenols present in blackcurrant extract with milk proteins by quantifying the protein-bound polyphenols and comparing the factors affecting these interactions. In addition, bioaccessibility and antioxidant activity were studied after in vitro gastric digestion. Our results indicated that polyphenols from blackcurrant extracts were preferentially bound to caseins more than whey proteins, with noncovalent interactions causing secondary structural changes in the protein. The hydrophobicity and the charge of …