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Articles 511 - 540 of 12360

Full-Text Articles in Food Science

Fabrication Of Antibacterial And Functional Films From Starch-Polyvinylpyrrolidone Composite Using Plasma Treatment And Silver Nanoparticles, Muhammad Nazrul Islam, Nikitha Modupalli, Md Mahfuzur Rahman Aug 2025

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 …

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Advance S In The Generation And Transport Behavior Of Secondary Hazards From Food Packaging Sterilization, Mengjia Ren, Ye Liu, Jinpeng Wang, Shuang Bi Aug 2025

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 …

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Lipase-Mediated Oxidation Of Furfural To Furoic Acid, Rui Zhu, Yaxin Wang, Liang Zhang Aug 2025

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 …

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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 Aug 2025

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 …

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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 Aug 2025

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 …

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Structural Characteristics And Antibacterial Activity Of Silver Nanoparticles Prepared From Phyllanthus Emblica Extract, Jingyuan Liu, Wenting Wang Aug 2025

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 …

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Research Progress In Phytosterols (Esters ) And Their Application In Food, Shuang Mei, Huibing Luo, Tian Gan, Yonggang Qi, Chunmei Li, Chao Wang, Zao Liu Aug 2025

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 …

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Efficient Catalytic Synthesis Of Allitol In Recombinant Escherichia Coli, Ying Cao, Peiyu Miao, Yun Liu, Zigang Zhang, Xian Zhang, Zhiming Rao Aug 2025

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 …

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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 Aug 2025

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 ] …

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Isolation Of Three Strains Of Cordyceps Militaris And Determination Of Their Active Compounds And Antioxidant Effects, Yun Meng, Yifang Zhang, Jinduo Shi, Dun Wang Aug 2025

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 …

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Bifidobacterium Adolescentis Fhnfq 5m4 Modulates Gut Microbiota And Alleviates Colitis In Mice, Yi Wang, Liming Huang, Xihua Yu, Liuruolan Li, Wenwei Lu, Hongchao Wang, Zhijian Zhang Aug 2025

Bifidobacterium Adolescentis Fhnfq 5m4 Modulates Gut Microbiota And Alleviates Colitis In Mice, Yi Wang, Liming Huang, Xihua Yu, Liuruolan Li, Wenwei Lu, Hongchao Wang, Zhijian Zhang

Journal of Food Science and Biotechnology

[Objective ] This study aims to verify and screen the Bifidobacterium adolescentis strains with vitamin A (VA) metabolic capacity,and investigate their effects on colitis symptoms and gut microbiota in mice.[Method ] The VA metabolic capacity of a panel of Bifidobacterium adolescentis strains was evaluated through in vitro fermentation,and the strain with the highest VA metabolic capacity was ultimately selected.This strain was administered orally to mice with dextran sulfate sodium (DSS )-induced colitis for 6 consecutive days.After the intervention,histopathological changes in the colonic tissue were assessed,and the levels of intestinal injury markers in the serum and cytokines,antioxidant enzymes,and retinoic acid (RA) …

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Screening And Characterization Of Yeast Strains From Naturally Fermented Rosa Roxburghii Pomace, Yong Li, Fang Yuan, Yu Fu, Luo Peng Aug 2025

Screening And Characterization Of Yeast Strains From Naturally Fermented Rosa Roxburghii Pomace, Yong Li, Fang Yuan, Yu Fu, Luo Peng

Journal of Food Science and Biotechnology

[Objective ] This study aimed to develop high-quality fermented Rosa roxburghii (R.roxburghii ) products by screening yeast strains suitable for R.roxburghii fermentation.[Method ] The naturally fermented R.roxburghi pomace was used as the material for preliminary screening through the TTC colorimetric method and secondary screening based on fermentation capacity.The tolerance of strains to SO 2,ethanol,low pH,and glucose was examined.The strains were identified via morphological characterization and molecular biological techniques.[Result ] Three high-performing strains (B17,B19,and B29) were obtained.These strains exhibited tolerance to 250 mg/L SO 2,mass fraction 60% glucose,volume fraction 8% ethanol,and pH 3.5 environment.B17 and B 29 were identified as Pichia …

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Isolation , Identification , And Whole Genome Sequencing Of Lactic Acid Bacteria From Pit Mud Of Jiangxiangxing Baijiu, Heou Huang, Cheng Wu, Shaojuan Yang, Dan Xie, Wenyu Zhao, Junlin Yang, Jianfeng Hu, Feng Hu, Diqiang Wang Aug 2025

Isolation , Identification , And Whole Genome Sequencing Of Lactic Acid Bacteria From Pit Mud Of Jiangxiangxing Baijiu, Heou Huang, Cheng Wu, Shaojuan Yang, Dan Xie, Wenyu Zhao, Junlin Yang, Jianfeng Hu, Feng Hu, Diqiang Wang

Journal of Food Science and Biotechnology

[Objective ] This study aims to develop functional microbial strain resources from the pit mud of Jiangxiangxing Baijiu and explore their potential in optimizing the fermentation process and improving Baijiu quality.[Method ] Lactic acid bacteria were screened from the pit mud of Jiangxiangxing Baijiu by the spread plate method and then identified by morphological and molecular biological methods.The metabolites of the strains were detected by high performance liquid chromatography and gas chromatography,and the whole genomes of the strains were sequenced via the Illumina sequencing technology.[Result ] Eleven strains of lactic acid bacteria were isolated and screened from the pit mud …

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Extraction Process Optimization And Antioxidant And Blood Glucose-Lowering Effect Evaluation Of Polyphenols From Camellia Japonica Flowers, Long Chen, Xiaocong Yang, Shujie Xing, Xinyao Shi, Xueke Zheng, Jing Zhu Aug 2025

Extraction Process Optimization And Antioxidant And Blood Glucose-Lowering Effect Evaluation Of Polyphenols From Camellia Japonica Flowers, Long Chen, Xiaocong Yang, Shujie Xing, Xinyao Shi, Xueke Zheng, Jing Zhu

Journal of Food Science and Biotechnology

[Objective ] This study optimized the extraction process of polyphenols from Camellia japonica (C.japonica ) flowers and preliminarily explored the antioxidant and blood glucose-lowering effects of the extracted polyphenols,aiming to improve the utilization of C.japonica flowers.[Method ] With the flowers of Xinyang Maojian as raw materials,the ultrasonic-assisted method was adopted to extract polyphenols from C.japonica flowers,and the antioxidant and blood glucose-lowering activities of the extracted polyphenols were analyzed.With the extraction rate of polyphenols from C.japonica flowers as the evaluation index,the response surface methodology was adopted to explore the effects of ethanol volume fraction,solid-liquid ratio,extraction time,and ultrasonic power on the extraction …

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Site-Directed Mutagenesis And Covalent Organic Framework Immobilization Of Serine Carboxypeptidase Y From Aspergillus Oryzae M30011 For Synergistic Enhancement Of Enzyme Performance, Jiawen Jiang, Bin Cai, Ke Xiong, Shucan Mao, Yiqiang Chen, Songlin Li, Pengcheng Zhang, Wei Yang, Borui Li Aug 2025

Site-Directed Mutagenesis And Covalent Organic Framework Immobilization Of Serine Carboxypeptidase Y From Aspergillus Oryzae M30011 For Synergistic Enhancement Of Enzyme Performance, Jiawen Jiang, Bin Cai, Ke Xiong, Shucan Mao, Yiqiang Chen, Songlin Li, Pengcheng Zhang, Wei Yang, Borui Li

Journal of Food Science and Biotechnology

[Objective ] To enhance the stability of serine carboxypeptidase during enzymatic hydrolysis and expand its industrial applicability,the author employed rational design and immobilization technology to develop efficient and stable enzymatic catalysts in view of the easy deactivation of this enzyme.[Method ] On the basis of the serine carboxypeptidase Y (CPY ) derived from Aspergillus oryzae M30011,single mutant enzymes M 517R,I464R,and Y 271R and the triple mutant enzyme M 517R/I464R/Y271R were designed.These mutant enzymes were then prokaryotically expressed in Escherichia coli and subjected to enzyme activity assays.Subsequently,the mutant enzyme with the highest activity was immobilized with covalent organic framework materials (COFs …

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Inhibition Mechanisms Of Naringenin And Egcg Against The Formation Of The Heterocyclic Amine Phip, Shuai Yu, Qingchen Luo, Mengmeng Feng, Xin Ai, Yubin Li, Liang Zhao Aug 2025

Inhibition Mechanisms Of Naringenin And Egcg Against The Formation Of The Heterocyclic Amine Phip, Shuai Yu, Qingchen Luo, Mengmeng Feng, Xin Ai, Yubin Li, Liang Zhao

Journal of Food Science and Biotechnology

[Objective ] This study clarifies the key roles of naringenin and epigallocatechin gallate (EGCG ) in inhibiting 2-amino- 1-methyl- 6-phenylimidazo [4,5-b]pyridine (PhlP ) formation in roasted meat and reveals the molecular mechanisms by which naringenin and EGCG regulate precursor consumption and intermediate accumulation,aiming to provide a scientific basis for reducing the risk of heterocyclic amines in food processing.[Method ] The changes in precursors of PhIP in roasted chicken breast were determined,and a model reaction system of flavonoids,methylglyoxal (MGO ),and phenylalanine (Phe) was established.The reaction kinetics curves of key substances were studied to decipher the inhibition mechanisms of naringenin and EGCG …

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Co-Expression And Application Of Enzymes For Preparation Of Β-Nicotinamide Mononucleotide, Jiehu Liu, Lingqia Su, Huixian Fu, Jing Wu Aug 2025

Co-Expression And Application Of Enzymes For Preparation Of Β-Nicotinamide Mononucleotide, Jiehu Liu, Lingqia Su, Huixian Fu, Jing Wu

Journal of Food Science and Biotechnology

[Objective ] This study aims to reduce the cost and simplify the production process of β-nicotinamide mononucleotide (β-NMN ) by the enzyme catalytic method.[Method ] On the basis of the previously established β-NMN synthesis system with six enzymes,the six enzyme genes were combined in pairs to construct double-enzyme co-expression recombinant strains.Each crude enzyme solution obtained by co-expression was used for multi-enzyme catalytic cascade reaction to synthesize β-NMN.[Result ] The yield of β-NMN was as high as 72.90% when the concentration of the substrate D-ribose was 10 mmol/L.The optimal temperature and IPTG induction concentration for inducing the enzyme expression of the …

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Effects Of Exogenous Enzyme Treatment On Quality And Main Components Of Summer Green Tea, Shanmin Chen, Hongyu Luo, Yi Wang, Rui Chang, Linying Yuan, Juan Yang Aug 2025

Effects Of Exogenous Enzyme Treatment On Quality And Main Components Of Summer Green Tea, Shanmin Chen, Hongyu Luo, Yi Wang, Rui Chang, Linying Yuan, Juan Yang

Journal of Food Science and Biotechnology

[Objective ] This study aims to investigate the effect of exogenous enzyme treatment on the quality of summer green tea and optimize the enzyme treatment conditions.[Method ] Sensory evaluation was employed to evaluate and screen the tea samples treated with six exogenous enzymes.The effects of cellulase,tannase,and treatment conditions on the sensory quality,bitter/astringent taste attributes,and main biochemical components of summer green tea were studied by electronic tongue and chemometrics methods.The optimal treatment conditions of cellulase and tannase were comprehensively evaluated by hierarchical cluster analysis,correlation analysis,and principal component analysis (PCA ).[Result ] Sensory evaluation revealed that cellulase and tannase significantly improved the …

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Nueva Metodología De Análisis Para Determinar El Delito Ambiental De Ecocidio Por Glifosato En Cultivos Permanentes De Coca En Colombia, Rosalina González Forero, Jerry H. Kavouras, Érika González Ruiz Aug 2025

Nueva Metodología De Análisis Para Determinar El Delito Ambiental De Ecocidio Por Glifosato En Cultivos Permanentes De Coca En Colombia, Rosalina González Forero, Jerry H. Kavouras, Érika González Ruiz

Biology Department Faculty Articles

El crimen organizado transnacional ha sido nefasto para el territorio colombiano, en especial el asociado a la producción de coca en la última década, lo que ha generado impactos económicos y sociales debido al aumento del conflicto e inseguridad en las zonas de influencia del cultivo. Esto se debe a que en el 2023 se tenían 230 000 hectáreas sembradas, lo que representa el 20 % de la superficie del país, con un impacto ambiental no cuantificado en términos penales. Este requiere de acciones de entidades estatales, así como de cooperación internacional, para adaptar estrategias y poder judicializar estos delitos …

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The Effect Of Melatonin And 6-Benzylaminopurine Application On The Post-Harvest Quality Of Cut Roses (Rosa X Alba), Azizah Tiara Putri, Syariful Mubarok, Rahmat Budiarto Aug 2025

The Effect Of Melatonin And 6-Benzylaminopurine Application On The Post-Harvest Quality Of Cut Roses (Rosa X Alba), Azizah Tiara Putri, Syariful Mubarok, Rahmat Budiarto

Jurnal Kultivasi

Roses are known as a high-value commodity frequently used in various important events. However, they are susceptible to postharvest quality deterioration, which can affect their vase life and appearance. In this study, roses with a blooming stage of approximately 25–50% were immersed in melatonin and 6-benzylaminopurine (BAP) solutions at different concentrations. This research aims to analyze the effect of melatonin and BAP application on the freshness of cut roses. The parameters observed included flower vase life, flower wilting angle, increase in flower diameter, fresh weight, solution uptake, and chlorophyll content. The results showed that melatonin and BAP, applied individually or …

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Effect Of Potassium Fertilizer On The Nutrition And Physical Quality Of Job’S Tears (Coix Lacryma-Jobi L.) Seeds, Qinthara Nail Haysa, Yuyun Yuwariah, Fiky Yulianto Wicaksono Aug 2025

Effect Of Potassium Fertilizer On The Nutrition And Physical Quality Of Job’S Tears (Coix Lacryma-Jobi L.) Seeds, Qinthara Nail Haysa, Yuyun Yuwariah, Fiky Yulianto Wicaksono

Jurnal Kultivasi

Job's tears is a cereal crop that has beneficial nutrients. Potassium is known to affect the growth and yield of cereal crops, but there has been limited study on whether potassium affects the nutrition and physical quality of Job’s tears seeds. This study aimed to analyze the effect of K fertilizer on the nutritional content and physical quality of Job's tears seeds. This research was conducted from January to May 2024 at Ciparanje Experimental Field, Faculty of Agriculture, Universitas Padjadjaran, Sumedang, Indonesia. This experiment used the Randomized Block Design (RBD) method with six treatments and four replications. Various doses of …

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Dairy And Food Science Student Newsletter, August 8, 2025, Department Of Dairy And Food Science Aug 2025

Dairy And Food Science Student Newsletter, August 8, 2025, Department Of Dairy And Food Science

Dairy and Food Science Student Newsletter

No abstract provided.

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Impact Of Buffered Dry Vinegar And Fermented Onion Juice On The Quality And Shelf-Life Of Fresh Pork Breakfast Sausage, Emily M. Little Aug 2025

Impact Of Buffered Dry Vinegar And Fermented Onion Juice On The Quality And Shelf-Life Of Fresh Pork Breakfast Sausage, Emily M. Little

Theses and Dissertations

The demand for clean-label meat products has increased interest in natural alternatives to synthetic antioxidants and antimicrobials. This study evaluated the effects of buffered dry vinegar (BDV), fermented onion juice (FOJ), and their combination (CMB) on microbial stability and sensory quality of pork sausage during 9 days of refrigerated storage. Sausages were assigned to control, FOJ (0.5%), BDV (0.5%), or CMB (0.25% each) treatments. BDV and CMB significantly reduced aerobic and psychrotrophic counts by days 7-9, while yeast increased across all treatments over time, reaching ~7 Log CFU/g by day 9. Sensory analysis revealed lower oxidation and off-note intensity in …

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Influence Of Water Hardness Used In Preparing Wheat Grain For Grinding On The Process Of "Stale" During Storage Of Bakery Products, Suvonqul S. Ravshanov, Ilkhom S. Nurmatov, Ulugbek N. Baltabaev Aug 2025

Influence Of Water Hardness Used In Preparing Wheat Grain For Grinding On The Process Of "Stale" During Storage Of Bakery Products, Suvonqul S. Ravshanov, Ilkhom S. Nurmatov, Ulugbek N. Baltabaev

CHEMISTRY AND CHEMICAL ENGINEERING

The hot climatic conditions of Uzbekistan are favorable for the development of mesophilic bacteria in bread products. The quality of the water used in this process has a great influence. The purpose of the study is to study the effect of water of different hardness on the change in the shelf life of bread during hydrothermal treatment for grinding wheat grain. To determine the freshness (staleness) of bread by rheological properties, the AP-4/2 automatic penetrometer and other devices for analyzing the properties of bread products were used. The conducted analyzes allowed us to conclude from the results of the study …

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The Importance Of Solvents In Obtaining Gossypol Free Cotton Meal In The Extraction Process, Dilshod A. Nasredinov, Aslbek B. Yulchiyev, Kamar P. Serkaev Aug 2025

The Importance Of Solvents In Obtaining Gossypol Free Cotton Meal In The Extraction Process, Dilshod A. Nasredinov, Aslbek B. Yulchiyev, Kamar P. Serkaev

CHEMISTRY AND CHEMICAL ENGINEERING

Comparative, analytical and experimental studies of methods for obtaining vegetable oils from oilseeds have been conducted, the purpose was to determine the advantages and disadvantages of technologies used in industry. As the experimental results have shown, among the existing methods of oil production, the method of direct extraction is promising, which provides 12% more water-soluble proteins while observing the technological regimes developed for each type of oil raw materials. Based on the fact that the current level of scientific and technological progress allows the use of targeted solvents and if necessary sequence of several extractants that provides isolation of a …

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Improvement Of Flax Seeds Processing Technology For The Production Of Functional Oil Products, Manzura N. Hafizova, Ismoil B. Isabaev, Nафиса R. Djurayeva, Suvankul S. Ravshanov Aug 2025

Improvement Of Flax Seeds Processing Technology For The Production Of Functional Oil Products, Manzura N. Hafizova, Ismoil B. Isabaev, Nафиса R. Djurayeva, Suvankul S. Ravshanov

CHEMISTRY AND CHEMICAL ENGINEERING

One of the main problems of our time is the sharp increase in alimentary-dependent diseases or so-called "diseases of civilization" caused by unbalanced nutrition, namely a stable deficiency or excess of nutrients with food relative to the physiological human needs. Therefore, recently there has been an increased interest in the production of functional products with a relatively balanced composition of certain nutrients depending on their purpose and intended use. A promising object of modification is traditional fat products, the transformation of which into functional ones is carried out by combining various types of raw materials, i.e., by creating composite (model) …

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Microbiome–Immune Interaction And Harnessing For Next-Generation Vaccines Against Highly Pathogenic Avian Influenza In Poultry, Yongming Sang, Samuel N. Nahashon, Richard J. Webby Aug 2025

Microbiome–Immune Interaction And Harnessing For Next-Generation Vaccines Against Highly Pathogenic Avian Influenza In Poultry, Yongming Sang, Samuel N. Nahashon, Richard J. Webby

Food and Animal Sciences Faculty Research

Highly pathogenic avian influenza (HPAI) remains a persistent threat to global poultry production and public health. Current vaccine platforms show limited cross-clade efficacy and often fail to induce mucosal immunity. Recent advances in microbiome research reveal critical roles for gut commensals in modulating vaccine-induced immunity, including enhancement of mucosal IgA production, CD8+ T-cell activation, and modulation of systemic immune responses. Engineered commensal bacteria such as Lactococcus lactis, Bacteroides ovatus, Bacillus subtilis, and Staphylococcus epidermidis have emerged as promising live vectors for antigen delivery. Postbiotic and synbiotic strategies further enhance protective efficacy through targeted modulation of the gut microbiota. Additionally, artificial …

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Evaluating The Effectiveness Of Individual Cleaning Steps Of A Cip Protocol In Membrane Biofilm Removal Under Dynamic Conditions, Diwaker Singh, Sanjeev Anand Aug 2025

Evaluating The Effectiveness Of Individual Cleaning Steps Of A Cip Protocol In Membrane Biofilm Removal Under Dynamic Conditions, Diwaker Singh, Sanjeev Anand

Dairy Science and Food Science Faculty Publications: 2022 to Present

This study evaluated the effectiveness of individual clean-in-place (CIP) steps in removing biofilms from reverse osmosis (RO) membranes under dynamic flow conditions using the Centers for Disease Control (CDC) biofilm reactor. Biofilms were developed in the laboratory under continuous flow, using mixed-species bacterial isolates obtained from 10-month-old RO membrane biofilms from a commercial facility. Individual CIP chemicals, representative of those used in commercial protocols, were tested against 24 h-old biofilms. Additionally, a complete six-step sequential CIP process was conducted under dynamic conditions, consisting of treatments with alkali, surfactant, acid, enzyme, a secondary surfactant, and sanitizer. All experiments were performed in …

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Comparative Impacts Of Irradiation On Antioxidant Compounds Of Scalded And Non-Scalded Skin Of Granny Smith Apples, Angela Banda Aug 2025

Comparative Impacts Of Irradiation On Antioxidant Compounds Of Scalded And Non-Scalded Skin Of Granny Smith Apples, Angela Banda

Food Science (MS) Theses

Post-harvest Superficial scald affects the quality of Granny Smith Apples. Oxidative stress develops superficial scald with antioxidant systems mitigating the extent of this damage. This study evaluated the effects of gamma, X-ray, and electron beam irradiation on antioxidants – ascorbic acid, total phenolics, α-tocopherol, carotenoids, chlorophyll, and campesterol – in scalded and non-scalded apple peel tissue. Apples were treated with 0.2-0.77 kGy and stored at 0-1 °C. Irradiation at the applied doses increased scald incidence, suggesting that disruption of antioxidant systems promoted reactive oxygen species accumulation and membrane damage. While certain antioxidants appeared to be upregulated as a stress response, …

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Effect Of Marination And Storage Time On The Properties And Meat Quality Of Broiler Breast, Mayra Mabel Herrera Rivera Aug 2025

Effect Of Marination And Storage Time On The Properties And Meat Quality Of Broiler Breast, Mayra Mabel Herrera Rivera

Graduate Theses and Dissertations

Abstract The poultry industry has implemented numerous methods, as marination and aging, to improve meat quality and satisfy consumer demands. Three experiments were developed to assess the effects of vacuum tumble marination and aging on the proteins of chicken breast. These experiments utilized 0.75 % sodium chloride, 0.45 % phosphate, and water in a marinade. In experiment one, 270 fillets were allocated into six treatment groups, each comprising 45 fillets. Six days of storage time were used, marinating and storing the fillets in each group at a temperature of 4°C. Following each day of storage period, the fillets underwent a …

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