Analysis Of Polyphenol Composition And Antioxidant Activity Of Jujube Juice Fermented By Lactic Acid Bacteria By In Vitro Simulated Gastrointestinal Digestion,
2026
Shanxi Institute of Functional Food , Shanxi Agricultural University , Taiyuan 030031 , China
Analysis Of Polyphenol Composition And Antioxidant Activity Of Jujube Juice Fermented By Lactic Acid Bacteria By In Vitro Simulated Gastrointestinal Digestion, Jiangning Zhang, Zheng Ye, Jiaqi Shen
Journal of Food Science and Biotechnology
[Objective ] This study aims to investigate the variation rules of polyphenolic substances and antioxidant activity of jujube juice fermented by lactic acid bacteria after in vitro simulated gastrointestinal digestion.[Method ] The mass fractions of total phenols,free phenols,and bound phenols,as well as the composition of polyphenolic substances and antioxidant activity in the jujube juice fermented by lactic acid bacteria (original jujube juice ) at different fermentation stages and in vitro simulated gastrointestinal digestive fluids were determined and compared.[Result ] With prolonged fermentation time,the mass fractions of total phenolics in the original jujube juice and the gastric digestive fluid increased and …
Influences Of Different Withering Methods On The Quality Of Wuyi Rock Tea Produced From Rain-Soaked Leaves,
2026
College of Horticulture ,Fujian Agriculture and Forestry University , Fuzhou 350002 , China;Fujian Wuyishan Wuyi Rock Tea Science and Technology Backyard , Nanping 354300 , China
Influences Of Different Withering Methods On The Quality Of Wuyi Rock Tea Produced From Rain-Soaked Leaves, Chengjiang Wei, Weijiang Sun, Zhechen Han, Peng Zhang, Weiwei Wu, Tao Wang, Qinglan Chen, Qi Lin, Jie Xu, Fuming Lin
Journal of Food Science and Biotechnology
[Objective ] This study aims to investigate the effects of different withering methods on the quality of Wuyi rock tea produced from rain-soaked leaves.[Method ] The rain-soaked leaves of Wuyi Shuixian (Camellia sinensis ) were treated with three withering methods:comprehensive withering in a fermentation machine,natural withering,and withering in an automated withering equipment.Sensory evaluation,biochemical component detection,and headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry were employed to comparatively analyze the flavor compounds.[Result ] The tea samples processed by the automated withering equipment (PW) exhibited the highest overall quality,characterized by a rich floral and fruity aroma,as well as a mellow,brisk,and refreshing taste.Cluster …
Ultrasound-Assisted Enzymatic Transformation And Immune Efficacy Of Black Ginseng Saponins,
2026
College of Food Science and Engineering , Changchun University , Changchun 130022 , China
Ultrasound-Assisted Enzymatic Transformation And Immune Efficacy Of Black Ginseng Saponins, Kuo Wang, Bao Zhong, Mingran Luan, Fenglin Li, Zhongkui Lu, Guanran Wang, Kun Yao
Journal of Food Science and Biotechnology
[Objective ] This study aims to elucidate the transformation process of black ginseng saponins and their immunomodulatory mechanisms.[Method ] An ultrasound-assisted enzymatic method was employed for the transformation of black ginseng saponins,and the mass concentration of black ginseng saponins was determined.Furthermore,the immunomodulatory effects of black ginseng saponins were investigated through animal experiments.[Result ] Under the conditions of an enzymatic hydrolysis temperature of 40 ℃,an enzyme mass fraction of 8%,enzymatic hydrolysis time of 60 min,and ultrasonic treatment time of 25 min,the mass concentration of black ginseng saponins increased from 1 615.40 μg/mL to 3 351.38 μg/mL,which represented an increase of 107.47%.The …
Degradation Of Nutrients In Corn Steep Liquor By Aspergillus Oryzae And Absorption Characteristics Of The Product,
2026
College of Food and Biological Engineering , Qiqihar University , Qiqihar 161006 , China
Degradation Of Nutrients In Corn Steep Liquor By Aspergillus Oryzae And Absorption Characteristics Of The Product, Xiaojie Wang, Chunrong Xia, Xiaolan Liu
Journal of Food Science and Biotechnology
[Objective ] This study aims to explore the degradation patterns of nutrients in corn steep liquor by Aspergillus oryzae and the absorption characteristics of the product.[Method ] Aspergillus oryzae was used for the fermentation of corn steep liquor,and degradation patterns of nutrients were studied after fermentation for 1,3,5,7,9,and 11 d.Changes in amino acid mass fraction and peptide molecular mass distribution in corn steep liquor after fermentation for 7 d were measured.Furthermore,the resting cells of Auricularia heimuer mycelia were used to explore the absorption characteristics of the fermentation product of corn steep liquor.[Result ] As the fermentation time prolonged within 1~7 …
Screening And Identification Of Strains Of Lactic Acid Bacteria For Fermentation From Suancai In The Dai Ethnic Region Of Yunnan,
2026
Kunming Institute of Food and Drug Control , Kunming 650032 , China
Screening And Identification Of Strains Of Lactic Acid Bacteria For Fermentation From Suancai In The Dai Ethnic Region Of Yunnan, Rui Wang, Jiawen Zhang, Lianqin Zhang, Xian Chen, Yan Chen, Cheng Zuo, Lixin Li, Yuhua Diao
Journal of Food Science and Biotechnology
[Objective ] This study aims to screen the strains of lactic acid bacteria (LAB ) suitable for Suancai fermentation.[Method ] Traditional fermented Suancai from the Dai ethnic region of Yunnan was used as the research samples for the isolation and purification of LAB.The purified isolates were evaluated for fermentation characteristics,including nitrite degradation,acid production,acid resistance,and salt tolerance.Additionally,the antimicrobial activity,antibiotic susceptibility,hemolytic activity,and amino acid decarboxylase activity were assessed to identify dominant strains.[Result ] A total of 208 LAB strains were isolated from 40 Suancai samples.Preliminary screening based on nitrite degradation identified 20 strains with high efficiency,and 16S rDNA sequencing identified 15 strains …
Antioxidant And Anti-Fatigue Properties Of Malus Spectabilis Fruit Polysaccharides In Mice,
2026
Department of Sports , Guilin University of Electronic Technology , Guilin 541004 , China
Antioxidant And Anti-Fatigue Properties Of Malus Spectabilis Fruit Polysaccharides In Mice, Zhilin Wen, Ming Li
Journal of Food Science and Biotechnology
[Objective ] This study aimed to explore the antioxidant and anti-fatigue properties of Malus spectabilis fruit polysaccharides (MPPs ) and analyze the structure-activity relationships.[Method ] Two types of MPPs were prepared via acidic (AC-MPC ) and alkaline (AL-MPC ) extraction methods.The polysaccharide composition was identified by high-performance anion-exchange chromatography (HPAEC ).The changes in mouse body mass,serum biochemical indicators,and exhaustive swimming time were measured to assess the in vivo antioxidant and anti-fatigue effects of MPPs.[Result ] Galacturonic acid was the main component in both types of MMPs,while AL-MPC had higher mass fraction of total polysaccharides.The in vivo experiments demonstrated that both …
Ultrasound-Assisted Dual-Enzyme Extraction Condition Optimization And Antioxidant Activity Evaluation Of Anthocyanins From Perilla Leaves,
2026
School of Environmental and Biological Engineering , Wuhan Technology and Business University , Wuhan 430065 , China
Ultrasound-Assisted Dual-Enzyme Extraction Condition Optimization And Antioxidant Activity Evaluation Of Anthocyanins From Perilla Leaves, Wenting Zhu, Shiyun Wang, Qiaolin Zhu, Qi Cao, Yixin Zhang, Tianran Hong
Journal of Food Science and Biotechnology
[Objective ] This study aims to comprehensively develop perilla and improve its utilization value.[Method ] Using perilla leaves as raw material,the effects of solid-liquid ratio,ethanol volume fraction,ultrasonic time,and enzymatic hydrolysis time on the mass fraction of anthocyanins in perilla leaves were studied.The ultrasound-assisted dual-enzyme extraction conditions for anthocyanins from perilla leaves were optimized by the response surface method.The antioxidant activity and phenol mass fraction of anthocyanins from perilla leaves were determined,and the main phenols were analyzed by chromatography.[Result ] The optimal extraction conditions of anthocyanins from perilla leaves were solid-liquid ratio of 1 g∶16 mL,ethanol volume fraction of 74%,ultrasonic time …
Immobilization Of Pseudomonas Fluorescens Lipase Onto Chitosan And Chitin-Based Carriers And Evaluation Of Its Hydrolytic Performance,
2026
College of Food Science and Technology , Guangdong Ocean University , Zhanjiang 524088 , China
Immobilization Of Pseudomonas Fluorescens Lipase Onto Chitosan And Chitin-Based Carriers And Evaluation Of Its Hydrolytic Performance, Haoyu Zhong, Hongyu Qin, Jun Zhang, Kuntai Li, Qiuyu Xia, Shucheng Liu
Journal of Food Science and Biotechnology
[Objective ] This study aims to construct chitosan and chitin-based carriers with hierarchical porous lamellar structures,systematically evaluate the immobilization effects of these carriers for Pseudomonas fluorescens lipase (PFL) and the performance of the immobilized enzyme in catalyzing the hydrolysis of fish oil.[Method ] Chitin/chitosan were modified via the sol-gel method to prepare the carriers for the binding with free PFL.The enzymatic properties of the immobilized PFL were then evaluated,and then analysed the hydrolysate composition of anchovy oil catalyzed by the immobilized PFL.[Result ] The modified carriers exhibited lamellar structures with abundant free amino groups on the surface,which facilitated covalent immobilization …
Construction And Antibacterial Activity Evaluation Of A Lipopeptide Delivery System,
2026
Sichuan Baoning Vinegar Co ., Ltd., Langzhong 637400 , China
Construction And Antibacterial Activity Evaluation Of A Lipopeptide Delivery System, Rong Chen, Mingye Guo, Ge Hou, Yan Chen
Journal of Food Science and Biotechnology
[Objective ] This study constructed a stable lipopeptide (LP) delivery system to improve the stability and dispersibility of LP,thereby enhancing their antibacterial efficacy.[Method ] LP particles were constructed with chitosan (CS) and sodium alginate (SA).Assembly property changes were evaluated by means of different construction and single factor experiments.Interactions among CS,LP,and SA were investigated by Fourier transform-infrared spectroscopy (FT-IR ),and the rheological properties of the system were examined by a rheometer.Antibacterial activity of LP particles was evaluated with Escherichia coli (E.coli) and Staphylococcus aureus (S.aureus ) as model microorganisms.[Result ] LP particles prepared by dripping CS with the relative molecular mass …
Effects Of Modification Methods On The Processing Properties Of Cyperus Esculentus Powder,
2026
College of Food and Bioengineering , Qiqihar University , Qiqihar 161006 , China
Effects Of Modification Methods On The Processing Properties Of Cyperus Esculentus Powder, Xiaowei Sun, Chunli Song, Jian Ren
Journal of Food Science and Biotechnology
[Objective ] This study aims to explore the effects of three modification methods on the processing properties of Cyperus esculentus powder.[Method ] Three modification methods (superfine grinding,microwave treatment,and enzymatic treatment ) were employed to process Cyperus esculentus powder.The effects of these treatments on the processing properties including oil holding capacity,hydration properties,textural properties,and rheological properties of Cyperus esculentus powder were analyzed.[Result ] In comparison to the native Cyperus esculentus powder,ultrafine grinding treatment increased the specific surface area of the powder,enhanced the oil holding capacity by 74.57%,and significantly increased the loss angle (tan δ).Additionally,this treatment significantly increased the hardness,cohesiveness,and chewiness of the …
Quantitative Assessment Of Roasted Coffee Freshness Over Time Using Multi-Parameter Analysis,
2026
Bucknell University
Quantitative Assessment Of Roasted Coffee Freshness Over Time Using Multi-Parameter Analysis, Maya Fetzer
Honors Theses
Roasted coffee undergoes continuous chemical and physical degradation after roasting, yet industry freshness standards remain empirically defined rather than grounded in measurable parameters. This study developed a multi-parameter framework for quantifying roasted coffee freshness by integrating gas-phase and solid-phase analysis, backed by human sensory evaluation, across three roast levels — light (City+), medium (Full City), and dark (Vienna) — over a four-month storage period. CO2 off-gassing was monitored continuously for 30 day, gas chromatography-mass spectrometry (GC-MS) tracked volatile compound changes in headspace gas, and Fourier transform infrared-diffuse reflectance spectroscopy (FTIR-DRIFTS) quantified oxidation-associated functional group changes, and microindentation assessed bean stiffness. …
Manuka Honey Modulates Oxidative Stress In Neuro2-A Cells Through Mitochondrial Regulation,
2026
University of Central Florida
Manuka Honey Modulates Oxidative Stress In Neuro2-A Cells Through Mitochondrial Regulation, Rachel Abramovici
Honors Undergraduate Theses
Manuka honey is known for its vital usage in wound healing, being an agonist towards fighting infections, and is an acting antioxidant [32]. Its main constituents are flavonoids and phenolic compounds, with methyl syringate (MSYR) being a major active ingredient. The specific compounds responsible for these antioxidant effects, particularly in the CNS, remain unclear. It is hypothesized that pre-treatment of mouse neuroblastoma cells with MSYR followed by hydrogen peroxide exposure will activate the AMPK/SIRT1/PGC-1a pathway, due to MSYR’s phenolic structure, and thus reduce oxidative stress and improve mitochondrial biogenesis. Hydrogen peroxide is a standard reactive oxygen species (ROS) treatment to …
Comparative Effects Of Gamma Irradiation And Chemical Treatments On Superficial Scald And Quality Of ‘Granny Smith’ Apples,
2025
Instituto Tecnologico y de Estudios Superiores de Monterrey
Comparative Effects Of Gamma Irradiation And Chemical Treatments On Superficial Scald And Quality Of ‘Granny Smith’ Apples, Francisco E. Loayza, Michelle Tu, Hagop S. Atamian, Anuradha Prakash
Food Science Faculty Articles and Research
Fresh produce is highly perishable, necessitating various postharvest treatments to minimize quality loss, extend shelf-life, and facilitate international trade. This study investigated the potential of a single low-dose gamma irradiation treatment as an alternative to commercially used chemical treatments for protecting ‘Granny Smith’ apples against insect pests and postharvest disorders. ‘Granny Smith’ apples harvested in 2019 and 2020 were treated with gamma irradiation at doses of 240 or 860 Gray (Gy) or with commercial chemical applications of 1-methylcyclopropene (1-MCP), diphenylamine (DPA), or methyl bromide (MeBr). The impact on fruit quality, physiology, and the development of postharvest disorders was evaluated after …
Composite Flours For Sustainable Food Systems: Integrating Nutritional, Environmental, And Climate Resilience Strategies,
2025
Department of Home Science and Centre for Research, St. Teresa’s College, Ernakulam, Kerala, 682011, India
Composite Flours For Sustainable Food Systems: Integrating Nutritional, Environmental, And Climate Resilience Strategies, Rashmi H. Poojara, Soumya P S, Alvina Rose, Niva Somarajan
Journal of Environmental Science and Sustainable Development
Composite flour blends prepared from cereals, millets, tubers, legumes, and vegetables have gained increasing attention due to their potential to enhance nutritional quality, improve functional properties, and support sustainable food systems. Previous studies have largely focused on individual nutritional or functional attributes, with limited integration of environmental and health perspectives. This review aimed to systematically analyze how composite flours simultaneously influence nutritional quality, functional performance, health relevance, and environmental sustainability within a unified analytical framework. A systematic literature review was conducted following PRISMA guidelines. Peer-reviewed studies published between 2014 and 2025 were retrieved from PubMed, Scopus, Web of Science, and …
Photoflow Synthesis And Characterization Of Cis- And Trans-N-Isohumulone,
2025
University of Missouri-St. Louis
Photoflow Synthesis And Characterization Of Cis- And Trans-N-Isohumulone, Gregory M. Giovine, Bradley Gallow, Trevor Smith, Bruce Hamper
Undergraduate Research Symposium
Previously published efforts by the Hamper group demonstrated the viability of photochemistry in the isomerization of n-humulone to n-isohumulone. Photochemical isomerization reactions of n-humulone performed under 400nm light over 8 hours resulted in high yields (84% reported) of largely trans-n-isohumulone (>95%). These promising results invited further examination of the photochemical process and the application of photoflow procedure. Herein we report the beginnings of a comprehensive slate of n-humulone isomerization reactions performed under iterative photoflow conditions.
Effects Of Compound Protease Fermentation On The Industrial-Scale Production Of Very High Gravity Brewing Beer,
2025
Tsingtao Brewery Co . Ltd., Qingdao 266237 , China
Effects Of Compound Protease Fermentation On The Industrial-Scale Production Of Very High Gravity Brewing Beer, Zongming Chang, Guangfeng Liu, Li Fang, Jiajie Zhang, Hua Yin
Journal of Food Science and Biotechnology
[Objective ] This study aims to address the technical problems of insufficient nitrogen content and an imbalanced amino acid composition in very high gravity wort produced with high-level syrup adjuncts.[Method ] This study investigated the effect of protease-assisted saccharification on wort protein composition.Then,a comprehensive evaluation was conducted on the brewing performance during 22 ° P very high gravity beer production.[Result ] During the proteolysis stage of saccharification,a synergistic addition of neutral protease and flavourzyme protease at a mass ratio of 6∶4 enabled efficient directed hydrolysis of malt proteins.In the wort,the α-amino nitrogen mass concentration was increased by 30%,while the mass …
Rapid Detection Of Aflatoxin B 1 Contamination Levels In Peanuts Based On Dual-Band Hyperspectral Imaging And Machine Learning,
2025
The College of Medical Technology , Shanghai University of Medicine & Health Sciences , Shanghai 201318 , China
Rapid Detection Of Aflatoxin B 1 Contamination Levels In Peanuts Based On Dual-Band Hyperspectral Imaging And Machine Learning, Lu Ren, Shuyue Shen, Wanrong Shi, Chuang Rui, Maofeng Dong, Tingting Li
Journal of Food Science and Biotechnology
[Objective ] This study aims to achieve rapid detection of AFB 1 contamination levels in peanuts through dual-band hyperspectral imaging and machine learning.[Method ] A peanut AFB 1 contamination level warning model was constructed via a dual-band hyperspectral imaging system consisting of visible near-infrared spectroscopy at 400~1 000 nm and short-wave near-infrared spectroscopy at 900~1 700 nm,combined with machine learning.Peanut samples with four contamination levels were collected,in which the mass fraction of AFB 1 was determined by ultra-high performance liquid chromatography-tandem mass spectrometry.The effects of four pretreatment methods [first derivative,second derivative,multiplicative scatter correction,and standard normal variate (SNV )],two characteristic wavelength …
Effects Of Aerated Storage On The Microbial Community And Functional Genes Of Pickles,
2025
Institute of Eastern Himalaya Research , Dali University , Dali 671003 , China
Effects Of Aerated Storage On The Microbial Community And Functional Genes Of Pickles, Hengye Jing, Wei Deng, Fuliang Qi, Kun Tan, Rong She, Xiaoyan Yang
Journal of Food Science and Biotechnology
[Objective ] This study aims to investigate the effects of aeration on the microbial community structure and metabolic functional genes in pickles.[Method ] Amplicon sequencing was carried out for the 16S rRNA and ITS rRNA gene fragments from three groups (aerated group,sealed group,and the initial group ) within the same pickle system.The EasyAmplicon pipeline and PICRUSt 2 were employed to assess bacterial and fungal community diversity,composition,and functional gene variations.[Result ] Compared with the initial group,the sealed group showed only minor changes in microbial diversity,whereas the aerated group exhibited significant microbial divergence from the initial group.After aeration,the number of rare taxa …
Protective Effects Of Ovalbumin-Sodium Carboxymethylcellulose Colloidal Particles On Fish Oil Emulsions,
2025
School of Food Science and Biotechnology , Zhejiang Gongshang University , Hangzhou 310018 , China
Protective Effects Of Ovalbumin-Sodium Carboxymethylcellulose Colloidal Particles On Fish Oil Emulsions, Weichun Pan, Ya Wen, Huabin Liao, Feina Gu, Qiuping Zhang, Fuge Niu
Journal of Food Science and Biotechnology
[Objective ] This study aimed to investigate the impact of curcumin-loaded ovalbumin (OVA )-carboxymethylcellulose (CMC ) (OVA -CMC-Cur ) colloidal particles on the stability of fish oil emulsions.[Method ] The OVA -CMC-Cur colloidal particles were prepared with OVA and CMC at varying mass ratios and pH.The colloidal particles were then used as the stabilizer to prepare fish oil emulsions.The structural characteristics,stability,and digestive behaviors of the emulsions were investigated.[Result ] At the OVA -CMC mass ratio of 2∶1,the OVA -CMC-Cur particle-stabilized fish oil emulsions exhibited smaller particle sizes.These particles formed a dense,compact interfacial film at the oil-water interface,resulting in more uniform …
Research Progress In The Regulation Of Intestinal Stem Cell Homeostasis By Dietary Patterns,
2025
School of Food Science and Biotechnology , Zhejiang Gongshang University , Hangzhou 310018 , China
Research Progress In The Regulation Of Intestinal Stem Cell Homeostasis By Dietary Patterns, Haichao Zhang, Qi Sun, Yumei Qin, Yanpei Gu, Jianzhong Han
Journal of Food Science and Biotechnology
Intestinal stem cells (ISCs ) located at the bottom of intestinal crypts are the key factors driving the repair and rapid renewal of the intestinal epithelium.Their proliferation and differentiation are finely regulated by the microenvironment of the niche.ISCs,as dietary nutrient sensors,can respond to different dietary signals to regulate intestinal homeostasis.The author systematically summarizes the main signaling pathways involved in the regulation of ISCs and reviews the effects and functioning mechanisms of dietary patterns such as high-fat diets,intermittent fasting,calorie restriction,and ketogenic diets on the homeostasis of ISCs,aiming to provide a theoretical basis for the development and application of dietary intervention strategies …
