Food Science Commons^™

Effects Of Low-Pressure Electrostatic Field-Assisted Freezing At Different Field Strengths On The Quality Of Sea Buckthorn Leaves, Xiaoyue Dong, Tongliga Dong, Jinwei Te, Xiukuan Wang, Qian Hao, Meishu Miao, Xueyan Yun

Journal of Food Science and Biotechnology

[Objective ] This study aimed to investigate the effects of different freezing preservation techniques on the quality of sea buckthorn (Hippophae rhamnoides ) leaves.[Method ] A low-voltage electrostatic field (LVEF ) pretreatment was applied during the freezing process of sea buckthorn leaves,and its effects on freezing characteristics and bioactive compound retention were evaluated.Field strengths at 0,20,40,and 60 cm from the discharge plate were compared with conventional freezing in terms of freezing rate,water loss rate,bioactive compound retention rate,and antioxidant activity of sea buckthorn leaves.The optimized and conventionally frozen leaves were subsequently used to prepare sea buckthorn leaf yogurt,with plain yogurt (NY) …

Baking Degree Discrimination And Quality Prediction Of Tieguanyin Oolong Tea Based On Near-Infrared Spectroscopy, Lizhu Huang, Yun Bian, Zhenfeng Li, Xianfeng Li, Chunfang Song

Journal of Food Science and Biotechnology

[Objective ] This study aims to assess the quality of Tieguanyin oolong tea during the baking process.[Method ] Near-infrared spectroscopy was used for non-destructive detection of Tieguanyin oolong tea during the baking process and chemometrics was employed to analyze the changes in the intrinsic quality of the Tieguanyin oolong tea.Spectral preprocessing and dimensionality reduction were conducted for the near-infrared spectral data.Support vector machine (SVM ) and back propagation neural network (BPNN ) were adopted to construct discrimination models for the baking degree of Tieguanyin oolong tea.Combining the near-infrared spectral data with intrinsic quality data,partial least squares regression (PLSR ) was …

Enhanced Expression Of Pepc Promotes The Synthesis Of 4-Hydroxyisoleucine By Corynebacterium Glutamicum, Chuhan Hu, Feng Shi

Journal of Food Science and Biotechnology

[Objective ] This study aims to achieve the efficient biosynthesis of 4-hydroxyisoleucine (4-HIL ) in Corynebacterium glutamicum (C.glutamicum ).[Method ] The isoleucine (Ile) inducible promoters (PbrnFEN) of varying strengths were used to dynamically upregulate the expression of the isoleucine dioxygenase (IDO ) gene ido and the Vitreoscilla hemoglobin (VHb ) gene vgb.On this basis,constitutive promoters of different strengths were employed to enhance the expression of the phosphoenolpyruvate carboxylase (PEPC ) gene ppc and the pyruvate carboxylase gene pyc.[Result ] Among the recombinant strains harboring different P brnFEN promoters,strain C.glutamicum SN-I 7V7 (SN-I 7V7) was selected.After 144 h of fermentation with …

Beneficial Effects Of Performlytetm, A Prodosomed Phytonutrient-Enriched Electrolyte Formulation, In Enhancing Neuro-Muscular Synergy, Immune Competence, Cellular Aerobic Glycolysis And Sports Performance, Bernard William Downs, Samudra P. Banik, Bruce S. Morrison, Tandra Chakraborty, Manashi Bagchi, Sanjoy Chakraborty, Steve Kushner, Debasis Bagchi

Publications and Research

An optimised sports nutrition formulation achieving the correct blend of electrolytes with antioxidants and vitamins is integral towards meeting the demanding performance in professional sports arena. In this work, we describe a pilot study carried out to understand the effect of a novel phytonutrient- and electrolyte-fortified sports nutrition composition, PerformLyte^TM, developed in our laboratories, in boosting the performance of trained male cyclists. PerformLyte^TM is a unique fortified formulation comprising of polyphenolic antioxidants, flavonoids, and anthocyanins, as well as carotenoids, sulforaphanes, exotic spices, sea water-derived electrolytes, and vitamin C, encapsulated in proprietary patent-pending Prodosome absorption technology, enabling sustained …

Dairy And Food Science Student Newsletter, September 4, 2025, Department Of Dairy And Food Science

Dairy and Food Science Student Newsletter

No abstract provided.

Dairy And Food Science News, Sept 2025, Department Of Dairy And Food Science

Dairy & Food Science News

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Assessment Of Microbial Quality And Safety, Including Aflatoxin B1, In Buckwheat Flour And Groats, La Fontaine Bahatsi

Department of Food Science and Technology: Dissertations, Theses, and Student Research

Buckwheat (Fagopyrum esculentum), a gluten-free pseudocereal, has gained popularity in global food markets for its nutritional value and functional properties. However, despite its health-promoting potential, buckwheat is vulnerable to microbial contamination and mycotoxin accumulation during cultivation, processing, and storage. These factors present significant food safety concerns that remain understudied, particularly in North America.

This study investigated the microbiological quality and mycotoxin contamination of buckwheat flour and groats collected from different suppliers via online sourcing. Samples were collected in two consecutive years (2024-2025). Microbiological quality, including aerobic plate counts (APC), Enterobacteriaceae, coliforms, E. coli, yeasts, and molds, was evaluated …

Dietary Modulation Of Obesity-Specific Gut Microbial Signatures And Their Functional Roles, Anjula Swathi Sagam

Tennessee State University Alumni Theses and Dissertations

Obesity remains a major global health concern, contributing significantly to chronic diseases. While diet is a well-known driver of obesity, emerging evidence suggests the key role of gut microbiota in mediating diet-related metabolic outcomes. Numerous epidemiological and microbiome studies suggested diet-microbiome-obesity associations. However, consistent microbial markers and mechanistic insights remain limited. To address this gap, this study aimed to identify consistent microbial species associated with obesity and investigate how diet influences their growth and function. A review of over 200 publicly available 16S rRNA and shotgun metagenomic studies revealed consistent microbial patterns in obesity, including members of Firmicutes and Bacteroidetes. …

Dairy And Food Science Student Newsletter, August 28, 2025, Department Of Dairy And Food Science

Dairy and Food Science Student Newsletter

No abstract provided.

Rna Sequencing-Based Transcriptome Analysis Of Liver In Laying Hens Supplemented With Dietary Probiotic Bacillus Species And Prebiotic Yeast (Saccharomyces Cerevisiae) Cell Walls, Ala E. Abudabos, Zafar M. Hakami, Ali R. Al Sulaiman, Riyadh S. Aljumaah, Valentino Palombo, Mashael R. Aljumaah, Mariasilvia D’Andrea, Abdulrahman S. Alharthi, Rashed A. Alhotan

Food and Animal Sciences Faculty Research

To investigate the impacts of dietary Bacillus-based probiotics and yeast-derived prebiotics on the hepatic transcriptome profile, 500 Hisex White laying hens were randomly allotted into five dietary treatments from 37 to 52 weeks of age: control; control + Bacillus subtilis; control + Bacillus subtilis and Bacillus licheniformis; control + Bacillus coagulans; and control + Saccharomyces cerevisiae yeast cell wall. Transcriptome analysis revealed a substantial number of differentially expressed genes exclusively between the control and prebiotic groups, identifying 2221 genes (FDR ≤ 0.05), with 980 genes upregulated (log2 fold change 0.69 to 24.62) and 1241 downregulated (log2 fold change −0.74 to …

Fabrication Of Antibacterial And Functional Films From Starch-Polyvinylpyrrolidone Composite Using Plasma Treatment And Silver Nanoparticles, Muhammad Nazrul Islam, Nikitha Modupalli, Md Mahfuzur Rahman

Food Science Faculty Publications and Presentations

Biopolymers and water-soluble nontoxic synthetic polymer composites using silver nanoparticles are astute approaches for antibacterial film fabrication. Moreover, surface treatment of the biopolymeric composite film by cold plasma can enhance the biocidal activity. Silver nanoparticles were synthesized by using the reduction method. Films were fabricated with different ratios of rice starch and polyvinylpyrrolidones (PVP) (1:0, 1:1, and 3:1), with and without silver (Ag) nanoparticles. A plasma jet was used to treat the film's surfaces by placing the Film 0.5 cm below the plasma discharge. Surface morphology was monitored by scanning electron microscopy (SEM), and the existence of Ag nanoparticles in …

Advance S In The Generation And Transport Behavior Of Secondary Hazards From Food Packaging Sterilization, Mengjia Ren, Ye Liu, Jinpeng Wang, Shuang Bi

Journal of Food Science and Biotechnology

Food packaging sterilization is an important technical means to avoid the spread of SARS-CoV- 2 and the cross-contamination of foodborne viruses.However,the secondary hazards generated after sterilization are complex and have different characteristics,and a wide range of factors affect the formation of these hazards.The studies about the migration behavior of secondary hazards from packaging materials to food remain to be reviewed.Therefore,the author systematically reviewed the correspondence between sterilization technologies and secondary hazards generated after food packaging sterilization,the characteristics of secondary hazards,the factors affecting the formation of secondary hazards,and the detection technologies of secondary hazards.By outlining the classical migration model,the author summarized …

Lipase-Mediated Oxidation Of Furfural To Furoic Acid, Rui Zhu, Yaxin Wang, Liang Zhang

Journal of Food Science and Biotechnology

[Objective ] This study aims to develop a lipase-mediated furfural oxidation system in ionic liquid for the green synthesis of furoic acid,5-hydroxymethyl- 2-furancarboxylic acid,and 2,5-furandicarboxylic acid under mild reaction conditions.[Method ] Using furfural as the substrate,Novozym 435 lipase as the catalyst,hydrogen peroxide as the oxidant,and 1-butyl- 3-methylimidazolium acetate ionic liquid as the solvent,the conditions including reaction temperature,reaction time,initial furfural concentration,and initial hydrogen peroxide concentration were optimized.The system was further extended to the oxidation of 5-hydroxymethylfurfural,and coupled with a chemical oxidation process using an imidazolium-based ionic liquid and tert-butyl hydroperoxide to achieve one-pot synthesis of 2,5-furandicarboxylic acid.[Result ] Under the optimized …

Oral Administration Of Lacticaseibacillus Paracasei Ccfm 1433 Boosts Host Immunity To Prevent Candida Albicans Infections, Xinya Zhang, Qiuxiang Zhang, Xin Tang, Bingyong Mao, Jianxin Zhao, Shumao Cui

Journal of Food Science and Biotechnology

[Objective ] This study aims to explore the role of Lactobacillus in enhancing host immunocompetence and preventing vaginal infections with Candida albicans.[Method ] A human vaginal epithelial cell (VK2/E6E7 cell) model was employed to screen the most potent strain among ten vaginal Lactobacillus isolates in inducing the antimicrobial peptide LL- 37.A mouse model of vaginal infection with Candida albicans was established.The effects of oral administration of the selected Lactobacillus strain on vaginal mucosal immunity,systemic inflammatory balance,and vaginal microbiota homeostasis were systematically evaluated using hematoxylin-eosin (HE) staining,ELISA,qPCR,and 16S rRNA sequencing.[Result ] Both t he cell lysate and fermentation supernatant of Lacticaseibacillus …

Screening Of Excellent Lactic Acid Bacteria And Yeast Fermentation Agents And Effects Of Mixed Fermentation On The Quality Of Bread Dough, Yumeng Chen, Weijun Wang, Shuling Shen, Yanhua Li, Jingjing Ma, Menghan Huang, Yuhang Liu

Journal of Food Science and Biotechnology

[Objective ] The research on the synergistic use of lactic acid bacteria and yeast in sourdough is beneficial for meeting the industrial production demand of fermentation agents for baking food.[Method ] This study investigated the acid tolerance,acid production,enzyme production,gas production,and alcohol production abilities of various strains during the fermentation process by measuring the microbial count,pH,stretching area,elongation,hardness,viscosity,storage modulus (G′),loss modulus (G″),etc.of bread dough.The effects of different fer mentation agents on the total titratable acidity (TTA ),stretching characteristics,texture characteristics,and rheological properties of b read dough were investigated.[Result ] Lacticaseibacillus paracasei LG0260,Lactiplantibacillus plantarum LG1034,Lactococcus lactis LG0827,as well as Saccharomyces cerevisiae J2808 and S.cerevisiae …

Structural Characteristics And Antibacterial Activity Of Silver Nanoparticles Prepared From Phyllanthus Emblica Extract, Jingyuan Liu, Wenting Wang

Journal of Food Science and Biotechnology

[Objective ] The aim of this study is to investigate the structural characteristics,antibacterial activity,and antioxidant capacity of silver nanoparticles (AgNPs ) prepared from Phyllanthus emblica extract.[Method ] AgNPs were prepared with Phyllanthus emblica extract as a reducing agent.The structure of the AgNPs was characterized by X-ray diffraction (XRD ),scanning electron microscopy (SEM ),photon correlation spectroscopy (PCS ),and transmission electron microscopy (TEM ).Furthermore,the inhibitory effects of AgNPs at different mass concentrations on Escherichia coli ATCC 25922,Staphylococcus aureus ATCC 25933,and Pseudomonas aeruginosa PAO 1 were assessed,with the minimum inhibitory concentrations (MIC ) being determined.In addition,the superoxide anion and ABTS+ free radical scavenging …

Research Progress In Phytosterols (Esters ) And Their Application In Food, Shuang Mei, Huibing Luo, Tian Gan, Yonggang Qi, Chunmei Li, Chao Wang, Zao Liu

Journal of Food Science and Biotechnology

Phytosterols esters are a type of compound synthesized through the esterification reaction between phytosterols and fatty acids.To clarify the research and application of phytosterols (esters ),the author provided an overview of their structural characteristics,synthesis methods,and physiological functions.Additionally,it was elucidated that phytosterols (esters ),as functional food ingredients,play a significant role in reducing cholesterol levels and exhibiting antioxidant properties in the human body.By delving into the bioactivity of phytosterols (esters ) and enhancing peopl e’s awareness of their nutritional value,this study makes an outlook on the research and application prospects of phytosterols (esters ) in food,thereby providing a crucial theoretical basis for …

Efficient Catalytic Synthesis Of Allitol In Recombinant Escherichia Coli, Ying Cao, Peiyu Miao, Yun Liu, Zigang Zhang, Xian Zhang, Zhiming Rao

Journal of Food Science and Biotechnology

[Objective ] This study aims to enhanced the conversion efficiency of allitol through biocatalytic methods.[Methods ] The ribulose dehydrogenase (RDH ) genes rdh from Providencia alcalifaciens,Klebsiella pneumoniae and Klebsiella oxytoca were respectively expressed in Escherichia coli (E.coli ) BL21,designated as Pardh,Kprdh and Kordh respectively to identify the target genes with higher transformation rates.Further,the RDH from Klebsiella oxytoca was coupled with the formate dehydrogenase (FDH ) from Candida boidinii for co-catalysis,and the catalytic conditions and the addition amounts of co-substrates were optimized to achieve efficient enzymatic catalytic synthesis of allitol.[Results ] When using FDH and RDH from Klebsiella pneumoniae with an …

Establishment Of A Hplc-Ms/Ms Method For Determination Of Cethromycin Residue In Poultry Eggs, Chenyang Chang, Liangzi Wang, Le Wang, Kai Chang, Jiao Shan, Xiao Wang, Liqiang Guo

Journal of Food Science and Biotechnology

[Objective ] This study aims to establish a method for determining the residual amount of cethromycin in poultry eggs based on high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS ).[Method ] Four representative poultry eggs (chicken eggs,duck eggs,goose eggs,and quail eggs ) were selected as the research matrices.Cethromycin was extracted with Mcllvaine-Na 2EDTA buffer solution,purified by hydrophilic-lipophilic balanced polymer solid-phase extraction column (HLB ),separated by a C 18 column with 0.1% (volume fraction ) formic acid water and acetonitrile as the mobile phase,and determined by HPLC-MS/MS in the multiple reaction monitoring (MRM ) mode combined with an external standard method.[Result ] …

Isolation Of Three Strains Of Cordyceps Militaris And Determination Of Their Active Compounds And Antioxidant Effects, Yun Meng, Yifang Zhang, Jinduo Shi, Dun Wang

Journal of Food Science and Biotechnology

[Objective ] The strains with high-yield for active compounds such as cordycepin and cordycepic acid were screened from Cordyceps militaris (C.militaris ) collected in Shaanxi Hualongshan National Nature Reserve.[Method ] Three strains LH 3,LY1,and LY 9 of C.militaris were isolated and identified.The yields of the primary active compounds,hydroxyl radical scavenging activity,and cellular oxidative protection activity in the extracts of the mycelial and fermentation broth of each strain were determined.[Result ] The yields of cordycepic acid,crude polyphenols,and crude polysaccharides,which were the main active compounds of C.militaris,were the highest in the mycelia extract of strain LY 9,with values of 2.94,28.79,65.01 mg/g,respectively,while the …