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Articles 211 - 240 of 442
Full-Text Articles in Food Science
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
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 …
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
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 …
Co-Expression And Application Of Enzymes For Preparation Of Β-Nicotinamide Mononucleotide, Jiehu Liu, Lingqia Su, Huixian Fu, Jing Wu
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 …
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
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 …
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
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 …
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
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 …
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
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 …
Dairy And Food Science Student Newsletter, August 8, 2025, Department Of Dairy And Food Science
Dairy And Food Science Student Newsletter, August 8, 2025, Department Of Dairy And Food Science
Dairy and Food Science Student Newsletter
No abstract provided.
Impact Of Buffered Dry Vinegar And Fermented Onion Juice On The Quality And Shelf-Life Of Fresh Pork Breakfast Sausage, Emily M. Little
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 …
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
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 …
The Importance Of Solvents In Obtaining Gossypol Free Cotton Meal In The Extraction Process, Dilshod A. Nasredinov, Aslbek B. Yulchiyev, Kamar P. Serkaev
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 …
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
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) …
Microbiome–Immune Interaction And Harnessing For Next-Generation Vaccines Against Highly Pathogenic Avian Influenza In Poultry, Yongming Sang, Samuel N. Nahashon, Richard J. Webby
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 …
Evaluating The Effectiveness Of Individual Cleaning Steps Of A Cip Protocol In Membrane Biofilm Removal Under Dynamic Conditions, Diwaker Singh, Sanjeev Anand
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 …
Comparative Impacts Of Irradiation On Antioxidant Compounds Of Scalded And Non-Scalded Skin Of Granny Smith Apples, Angela Banda
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, …
Effect Of Marination And Storage Time On The Properties And Meat Quality Of Broiler Breast, Mayra Mabel Herrera Rivera
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 …
The Bacteria Who Lived: Uncovering And Mitigating The Persistence Of Pathogens In Low-Moisture Food Processing, Kavita Shripati Patil
The Bacteria Who Lived: Uncovering And Mitigating The Persistence Of Pathogens In Low-Moisture Food Processing, Kavita Shripati Patil
Graduate Theses and Dissertations
Low-moisture food (LMF) processing environments pose a persistent food safety risk due to Salmonella survival and harborage on surfaces. This work investigates persistent bacterial populations (PBPs) in LMF production environments, focusing on identifying a suitable surrogate and evaluating sanitation strategies. Three potential surrogates, Escherichia coli MP 26, Enterococcus faecium, and Pediococcus acidilactici, were compared to Salmonella PBPs formed in nonfat dry milk (NFDM) on stainless steel coupons stored at 25°C under 30% or 70% relative humidity (RH) using two different inoculation methods. E. faecium showed survival patterns most similar to Salmonella, with no significant differences in log reductions (p > 0.05), …
Educating The New Generation Of Food Scientists Through Innovative Learning Experiences, Karen Andrea Nieto Flores
Educating The New Generation Of Food Scientists Through Innovative Learning Experiences, Karen Andrea Nieto Flores
Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–
Food science provides an opportunity to engage high school students in Science, Technology, Engineering, and Mathematics (STEM) by connecting classroom concepts to real-world applications. Despite the field’s relevance to public health, food safety, sustainability, and innovation, food science remains largely absent from high school curricula, and few students recognize it as a viable STEM pathway. This research addressed this gap by evaluating immersive summer camp experiences and teacher-focused curriculum review as strategies to increase food science awareness and interest among students and educators. A literature review traced the historical development and current landscape of K–12 food science education, identifying barriers …
Egg White Hydrolysate In Hypertension: A Mechanistic Investigation Of Gut Microbiota Dependent And Independent Pathways, Emerson David Nolasco
Egg White Hydrolysate In Hypertension: A Mechanistic Investigation Of Gut Microbiota Dependent And Independent Pathways, Emerson David Nolasco
Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–
Cardiovascular diseases are one of the leading causes of mortality worldwide in which hypertension is a risk factor. Present pharmacological interventions require long-term adherence to the therapy and are often associated with undesirable side effects. Moreover, treatments have overlooked the role of the microbiome in the development of hypertension. Egg white hydrolysate (EWH) has exhibited antihypertensive properties with potential to be used as a natural alternative for the prevention and management of hypertension. However, EWH peptide’s effect on the gut microbiome remains yet to be elucidated. Studies have described that a portion of the ingested protein can remain undigested as …
Generation Of Ph-Responsive Starch And Alginate-Pectin Hydrogels Using Coaxial 3d Food Printing: The Release Of Methylene Blue, Que-Anh Truong-Le, Matthias D.R. Lenie, Ali Ubeyitogullari
Generation Of Ph-Responsive Starch And Alginate-Pectin Hydrogels Using Coaxial 3d Food Printing: The Release Of Methylene Blue, Que-Anh Truong-Le, Matthias D.R. Lenie, Ali Ubeyitogullari
Food Science Faculty Publications and Presentations
This article presents the development of a 3D food printing (3DFOODP) system incorporating a core-shell structure to encapsulate a model compound, methylene blue (MB). A coaxial nozzle configuration was employed to fabricate 3D-printed samples, featuring a starch core and a pH-responsive alginate-pectin (Al-P) shell. The optimal 3D printing conditions were determined as 11 wt% starch as the core along with 2 wt% Al-P with 0.02 M CaCl2 as the shell at printing temperatures of 95 degrees C and ambient temperature (23 degrees C), respectively. The overall 3D printability at this condition was 98 %, closely matching the digital 3D design. …
Use Of The Protein Misfolding Cyclic Amplification For Food Safety And Drug Discovery, Maria R. Benavente Garcia-Huidobro
Use Of The Protein Misfolding Cyclic Amplification For Food Safety And Drug Discovery, Maria R. Benavente Garcia-Huidobro
Dissertations and Theses (Open Access)
Prion diseases are fatal neurodegenerative disorders caused by the misfolding of the normal prion protein (PrPC) into its infectious form (PrPSc). While the zoonotic potential of chronic wasting disease (CWD) remains uncertain, the presence of prions in food products raises public health concerns. Additionally, therapeutic strategies for prion diseases remain limited. This thesis presents a methodological exploration of the Protein Misfolding Cyclic Amplification (PMCA) technique to address these challenges in two key areas: (1) detecting CWD prions in processed meats subjected to common cooking procedures, and (2) identifying potential anti-prion compounds through a high-throughput PMCA adaptation. …
Comparison Of Sodium Deoxycholate And Sodium Dodecyl Sulphate In Milk Fat Globular Membrane Protein Recovery, Manujaya W. Jayamanna Mohottige, Angela Juhasz, Mitchell G. Nye-Wood, Katherine A. Farquharson, Utpal Bose, Michelle L. Colgrave
Comparison Of Sodium Deoxycholate And Sodium Dodecyl Sulphate In Milk Fat Globular Membrane Protein Recovery, Manujaya W. Jayamanna Mohottige, Angela Juhasz, Mitchell G. Nye-Wood, Katherine A. Farquharson, Utpal Bose, Michelle L. Colgrave
Research outputs 2022 to 2026
This study aims to investigate detergent sodium deoxycholate (SDC) and sodium dodecyl sulphate (SDS) treatments, with a focus on each detergent's ability to enhance the extraction of immune-related proteins from camel milk fat globular membrane. Milk was separated into cream and skimmed milk. The cream was then treated using 0.4 % SDS, 2 % SDC, 6 % SDC or 10 % SDC. Extracted proteins were trypsin digested and analysed using liquid chromatography-tandem mass spectrometry. Higher SDC concentrations (6 % and 10 %) resulted in marginal improvements in protein identification (44 unique protein groups). Protein abundance distributions showed minimal differences across …
Preparation Of Human Asprosin Nanobodies Based On A Natural Nanobody Phage Display Library, Yun Liang, Yi Huang, Qinghua He
Preparation Of Human Asprosin Nanobodies Based On A Natural Nanobody Phage Display Library, Yun Liang, Yi Huang, Qinghua He
Journal of Food Science and Biotechnology
[Objective ] Asprosin (ASP ),an adipokine produced from fibrillin- 1 (FBN 1) cleavage,is closely linked to type 2 diabetes mellitus and obesity when its level is abnormal,demonstrating significant effect on human health.Therefore,monitoring the ASP level is crucial.The author aims to screen the nanobodies specifically binding to ASP via phage display technology,offering a new antibody component for the research on ASP.[Method ] The antigenic epitopes of ASP were predicted by the online tools ABCpred and NovoPro,and then coupled with bovine serum albumin (BSA ) to form the coating antigen (ASP-Epitope-BSA ).After five rounds of bio-panning,the nanobodies specifically binding to ASP were …
Modulatory Effects Of Flavonoids On Il- 4/Il-13 In Atopic Dermatitis And Their Structure-Activity Relationships, Yueyuan Wang, Jing Liu, Chen Li, Fengfeng Chen, Cheng Yang, Bingtian Zhao
Modulatory Effects Of Flavonoids On Il- 4/Il-13 In Atopic Dermatitis And Their Structure-Activity Relationships, Yueyuan Wang, Jing Liu, Chen Li, Fengfeng Chen, Cheng Yang, Bingtian Zhao
Journal of Food Science and Biotechnology
[Objective ] This study aims to explore the ameliorating effects of flavonoids on atopic dermatitis (AD) and their structure-activity relationships.[Method ] Flavonoids were selected through network pharmacology with interleukin- 4 (IL-4) and interleukin- 13 (IL-13) as key targets.The immunoglobulin E (IgE)-induced RBL- 2H3 cell model was employed to evaluate the effects of flavonoids on inflammatory factors,degranulation activities,and calcium ion influx,and the structure-activity relationships were analyzed.Finally,molecular docking was utilized to assist in exploring the action mechanism.[Result ] All of the six flavonoids (luteolin,apigenin,chrysin,quercetin,kaempferol,and fisetin ) screened by network pharmacology had significant inhibitory effects on the expression of IL- 4,IL- 13,tumor necrosis …
Structural And Solution Property Characterization Of Oat Β-Glucans, Hongli Zhang, Yaning Shi, Ming Miao
Structural And Solution Property Characterization Of Oat Β-Glucans, Hongli Zhang, Yaning Shi, Ming Miao
Journal of Food Science and Biotechnology
[Objective ] This study aims to characterize the structure and investigate the solution properties of oat β-glucan (OBG ).[Method ] Two soluble OBGs with different weigh-average molecular weights (Mw),number-average molar weights (Mn),and peak molecular weights (Mp) were prepared by hot water extraction and ethanol classification.The structures and solution properties were characterized by Fourier-transform infrared spectroscopy (FT-IR ),nuclear magnetic resonance (NMR ),X-ray diffraction (XRD ),scanning electron microscopy (SEM ),high performance size exclusion chromatography coupled with multi-angle laser light scattering (HPSEC-MALLS ),and rheology.[Result ] OBG- 1 and OBG- 2 showed the Mw of 80.73×104 g/mol and 8.05×104 g/mol,the yields of (4.86±0.55)% and …
Research And Preliminary Application Of A Rapid Immunoassay Method For Eugenol Based On Quantum Dots, Junjie Sun, Xiaoxia Liu, Ziyi Chen, Yinlai Li, Lu Zhai, Qinzhou Chen, Renyao Jin
Research And Preliminary Application Of A Rapid Immunoassay Method For Eugenol Based On Quantum Dots, Junjie Sun, Xiaoxia Liu, Ziyi Chen, Yinlai Li, Lu Zhai, Qinzhou Chen, Renyao Jin
Journal of Food Science and Biotechnology
[Objective ] This study aims to establish a rapid immunoassay method for the quantitative detection of eugenol.[Method ] The eugenol monoclonal antibody was conjugated to the surface of quantum dots by the 1-ethyl- 3- (3-dimethylaminopropyl ) carbodiimide (EDC ) and N-hydroxy-succinamide (NHS ) (EDC-NHS ) coupling method,with quantum dots as fluorescent markers.Bovine serum albumin (BSA ) was used for blocking,and fluorescence microscopy,agarose gel electrophoresis,and a microplate reader were used for identification.Furthermore,the established method was compared with high performance liquid chromatography (HPLC ).[Result ] The optimal synthesis conditions were as follows:quantum dot activation time of 30 min,conjugation pH with 8.0,antibody addition …
Effects Of Tea Polysaccharides On The Properties Of Chestnut Starch, Lei Lei, Wenjun Fu, Lingling Yang, Haibo Liu, Daxi Sang, Qing Wang
Effects Of Tea Polysaccharides On The Properties Of Chestnut Starch, Lei Lei, Wenjun Fu, Lingling Yang, Haibo Liu, Daxi Sang, Qing Wang
Journal of Food Science and Biotechnology
[Objective ] This study aims to improve the properties of chestnut starch.[Method ] Tea polysaccharides were added to chestnut starch in different proportions,and the effects of tea polysaccharides on the water-holding capacity,digestive properties,textural properties,and other properties of chestnut starch were investigated.[Result ] The water-holding and oil-holding properties of chestnut starch were the largest when tea polysaccharides were added at 1% and then gradually decreased with the increase in the proportion of tea polysaccharides added.The transparency of chestnut starch gradually increased when tea polysaccharides were added from 1% to 8% and decreased significantly when tea polysaccharides were added at 16%.Adding tea …
Research Progress In Thermo-Reversible Polysaccharide Gels, Dongxin Zhou, Ziao Zhang, Su Chen, Weimin Yang, Jiajun Sun, Shengzu Han, Anning Xie, Xiaoxiao Li, Yuxiang Bai
Research Progress In Thermo-Reversible Polysaccharide Gels, Dongxin Zhou, Ziao Zhang, Su Chen, Weimin Yang, Jiajun Sun, Shengzu Han, Anning Xie, Xiaoxiao Li, Yuxiang Bai
Journal of Food Science and Biotechnology
Thermo-reversible gels are widely applied in the processing of baking,meat,and snack products including cakes,candies,jelly,aspic,and steamed custard buns.Currently,the most effective thermo-reversible gel is gelatin,which can combine with water to form a transparent gel that melts when it is close to the temperature of the human oral cavity.However,gelatin is expensive.Therefore,researchers have turned their attention to polysaccharide gels,hoping to obtain more thermo-reversible food raw materials with different properties.The author reviews thermo-reversible polysaccharide gels from natural sources such as plants,algae,and microorganisms and those modified by physical,chemical,and enzymatic methods and summarizes the sources,structures,gelatinization mechanisms,and product applications of polysaccharide gels.It is expected to provide a reference …
Mechanisms Of Antioxidant Activity Of Lactic Acid Bacteria And Its Application In Oxidative Stress-Related Diseases, Yixiao Shao, Chuang Huang, Chenjian Liu, Xiaoran Li
Mechanisms Of Antioxidant Activity Of Lactic Acid Bacteria And Its Application In Oxidative Stress-Related Diseases, Yixiao Shao, Chuang Huang, Chenjian Liu, Xiaoran Li
Journal of Food Science and Biotechnology
The antioxidant properties of lactic acid bacteria are related to various probiotic activities,which can prevent and alleviate a variety of chronic diseases caused by oxidation in the host.The antioxidant mechanisms of lactic acid bacteria,including the action mechanisms of antioxidant enzymes and non-enzymatic antioxidants and regulation of host signaling pathways,were expounded.Furthermore,the application status of antioxidant properties of lactic acid bacteria in diseases of the nervous system,digestive system,and skin system were summarized.The aim is to explore how to enhance the antioxidant activity of lactic acid bacteria in oxidative stress-related diseases and give new insights into the development of related treatment strategies.
Reconstruction And Analysis Of Genome-Scale Metabolic Model Of Aspergillus Oryzae Fmme-S- 38, Cong Gao, Weijia Yuan, Chao Ye, Jia Liu, Liming Liu
Reconstruction And Analysis Of Genome-Scale Metabolic Model Of Aspergillus Oryzae Fmme-S- 38, Cong Gao, Weijia Yuan, Chao Ye, Jia Liu, Liming Liu
Journal of Food Science and Biotechnology
[Objective ] A genome-scale metabolic model (GSMM ) of the high L-malic acid-producing strain Aspergillus oryzae (A.oryzae ) FMME-S- 38 was constructed and analyzed.[Method ] The new GSMM iJW1333 was established for A.oryzae FMME-S- 38 through a two-step process of draft reconstruction and model refinement.[Result ] The model integrated 1 723 biochemical reactions,1 723 metabolites,and 1 333 functional genes,achieving the prediction accuracy of 94.6% for substrate metabolism and 92.0% for cell growth.Comparative genomic analysis revealed that mutations in the genes involved in the hexose monophosphate pathway (HMP ) and oxidative phosphorylation underpinned the enhanced L-malic acid production of A.oryzae FMME-S- …