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A review on marine collagen:sources,extraction methods,colloids properties,and food applications

胶原与皮革（英文） 2024年第1期6卷 1-27页

作者： Shahzad Farooq Muhammad Ijaz Ahmad Shijie Zheng Usman Ali Yang Li Cui Shixiu Hui Zhang Jiaxing Institute of Future food Jiaxing 314050China College of Biosys-tems engineering and food Science Zhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China Jiaxing Institute of Future food Jiaxing 314050China College of Biosys-tems engineering and food Science Zhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China

The growing interest in valorizing industrial by-products has led researchers to focus on exploring different sources and optimizing collagen extraction conditions over the past *** bovine hide,cattle bones,pork,and pig skins remain the most abundant collagen sources,there is a growing trend in the industrial utilization of collagen from non-mammalian *** review explores alternative marine collagen sourcesand summarizes emerging trends in collagen recovery from marine sources,with a particular focus on environmentally friendly ***-tionally,this review covers the colloidal structure-forming properties of marine collagens,including foam,film,gel,and emulsion *** also highlights the potential and important applications of marine collagen in various food *** on the currently reported marine sources,collagens extracted from fish,jellyfish,and sea cucumbers were found to have the highest yield and mostly comprised type-l collagen,while crustaceans and mollusks yielded lower percentages of *** extraction techniques isolate collagen based on acetic acid and pepsin treatment,but they come with drawbacks such as being time-consuming,causing sample destruction,and using ***,marine collagen extracted using conventional methods assisted with ultrasonication resulted in higher yields and strengthened the triple-stranded helical ***,an increasing number of new applications have been found in the food industry for marine collagens,such as biodegradable film-forming materi-als,colloid stabilizers,foaming agents,and micro-encapsulating ***,collagen is a modern foodstuff and is extensively used in the beverage,dairy,and meat industries to increase the stability,consistency,and elasticity of products.

关键词： Marine collagen Jellyfish Sea cucumber Colloid stabilizer Edible film Dairy product

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Molecularly imprinted sensor based on carboxylated carbon nanotubes/Keggin-type polyoxometalates nanocomposite for the detection of furazolidone

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Tungsten 2024年第2期6卷 394-409页

作者： Yu-Lan Huang Bing Zhang Yu-Lian Li Li Wang Le Dong Jian Li College of Ocean food and Biological engineering Jimei UniversityXiamen 361021China College of Oceanology and food Science Quanzhou Normal UniversityQuanzhou 362000China

Due to its properties of mutagenic,teratogenic,and carcinogenic,the detection of furazolidone(FZD)in aquaculture is of great importance for food safety and human *** this study,molecularly imprinted fi lms modifi ed with carboxylated multi-walled carbon nanotube-phosphomolybdic acid composite were used to fabricate an electrochemical sensor for the determination of *** nanocomposites were characterized using infrared spectroscopy,scanning electron microscopy,energy-dispersive X-ray spectroscopy,and X-ray diff *** electrochemical characteristics of the modifi ed electrodes were examined using electrochemical impedance spectroscopy,cyclic voltammetry,and diff erential pulse *** sensor exhibited exceptional catalytic *** calibration curves were acquired in the concentration range of 6 nmol·L^(−1)to 0.6μmol·L^(−1),with a limit of detection of 3.38 nmol·L^(−1).Additionally,the sensor proved successful in recognizing FZD in shrimp samples with satisfactory recoveries and *** method provides a strategy to construct a molecularly imprinted electrochemical sensing platform using nanomaterials,which has great promise in the field of food safety.

关键词： Phosphomolybdate Furazolidone Polyoxometalates Carboxylated multi-walled carbon nanotube Molecularly imprinted polymers Electrochemical sensor

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The modulatory effect of oolong tea polyphenols on intestinal flora and hypothalamus gene expression in a circadian rhythm disturbance mouse model

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food Science and Human Wellness 2024年第2期13卷 748-764页

作者： Ruonan Yan Chi-Tang Ho Yanan Liu Shengnan Zhan Zufang Wu Xin Zhang Department of food Science and engineering Ningbo UniversityNingbo 315211China Department of food Science Rutgers UniversityNew BrunswickNew Jersey 08901USA

The interaction between host circadian rhythm and gut microbes through the gut-brain axis provides new clues for tea polyphenols to improve host *** present research showed that oolong tea polyphenols(OTP)improved the structural disorder of the intestinal flora caused by continuous darkness,thereby modulating the production of metabolites related to pyruvate metabolism,glycolysis/gluconeogenesis,and tryptophan metabolism to alleviate the steady-state *** fecal microbiota transplantation from the OTP group,the single-cell transcriptomic analysis revealed that OTP significantly increased the number of hypothalamus cell clusters,up-regulated the number of astrocytes and fibroblasts,and enhanced the expression of circadian rhythm genes Cry2,Per3,Bhlhe41,Nr1d1,Nr1d2,Dbp and Rorb in hypothalamic *** results confirmed that OTP can actively improve the intestinal environmental state as well as internal/peripheral circadian rhythm disorders and cognitive impairment,with potential prebiotic functional characteristics to notably contribute to host health.

关键词： Gut microbiota Circadian rhythm Oolong tea polyphenols Single-cell sequencing Metabolism

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Dynamics design of a non-natural transcription factor responding to androst-4-ene-3,17-dione

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Synthetic and Systems Biotechnology 2024年第3期9卷 436-444页

作者： Ming Zhao Mengkai Hu Rumeng Han Chao Ye Xiangfei Li Tianwen Wang Yan Liu Zhenglian Xue Kun Liu Anhui engineering Laboratory for Industrial Microbiology Molecular Breeding College of Biology and Food EngineeringAnhui Polytechnic UniversityWuhu 241000China

The production of androst-4-ene-3,17-dione(AD)by the steroidal microbial cell factory requires transcription factors(TFs)to participate in metabolic ***,microbial cell factory lacks effective TFs that can respond to AD in its metabolic ***,finding and obtaining natural TFs that specifically respond to AD is a complex and onerous *** this study,we devised an artificial TF that responds to AD,termed AdT,based on structure-guided molecular dynamics(MD)*** to MD analysis of the conformational changes of AdT after binding to AD,an LBD in which the N-and C-termini exhibited convergence tendencies was used as a microswitch to guide the assembly of a DNA-binding domain lexA,a linker(GGGGS)2,and a transcription activation domain B42 into an artificial *** a proof of design,a AD biosensor was designed and constructed in yeast on the basis of the ligand-binding domain(LBD)of hormone *** addition,the transcription factor activity of AdT was increased by 1.44-fold for its variant ***,we created non-natural TF elements for AD microbial cell factory,and expected that the design TF strategy will be applied to running in parallel to the signaling machinery of the host cell.

关键词： Protein design Artificial transcription factor Molecular dynamics Steriods Site-mutations

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Effects of galactooligosaccharide glycation on the functional properties of soy protein isolate and its application in noodles

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Grain & Oil Science and Technology 2024年第3期7卷 159-167页

作者： Meiyue Wang Guanhao Bu Yufei Xing Mengke Ren Yang Wang Yijing Xie College of food Science and engineering Henan University of TechnologyZhengzhou 450001China

Soybean protein has high nutritional value, but its functional properties are easily affected by external factors,which limits its application in food industry. In the study, soybean protein isolate(SPI) was modified by dry heat glycation of galactooligosaccharides(GOS). The gel properties, antioxidant properties and structural changes of SPI-GOS conjugates were investigated. The application of SPI-GOS conjugates in noodles was also explored. The results observed that the glycation degree of SPI increased with the increasing reaction time. SDS-PAGE and spectral analysis showed the changes of spatial conformation of SPI after glycation. The antioxidant activity of SPI increased after glycation and DPPH radical scavenging activity of SPI-GOS peaked at 48 h of reaction. The hardness, elasticity and resilience of soybean protein gel reached their relative maximum at 48 h, 48 h and 12 h of glycation reaction, respectively. Moreover, the appropriate addition of glycated SPI improved the quality of noodles. The noodles with 4% addition of SPI-GOS had higher hardness, elasticity and tensile properties. This study will provide an effective method to modify soybean protein and expand the use of soybean protein in food industry.

关键词： Soy protein isolate Glycation Galactooligosaccharide Functional properties Noodles

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High Power Microwave Treatment Impacts on Microbes in Rough Rice

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Rice science 2024年第2期31卷 139-141,I0020,I0021页

作者： Faith OUMA Luthra KAUSHIK Boreddy SREENIVASULA Oduola ABASS Griffiths G.ATUNGULU Department of food Science University of Arkansas Division of AgricultureFayetteville 72704USA Department of Processing and food engineering Dr.NTR College of Agricultural EngineeringBapatla 522101India

As rice consumption increases,ensuring its safety has become a priority for the food *** address this concern,the industry is exploring a single-pass microbial inactivation treatment at the rough rice *** this study,a long-grain rice variety,RT7321[21.2%wet basis(WB)and a 20 mm bed thickness]was exposed to microwave radiation(915 MHz frequency)at powers of 16,18,and 20 kW for durations of 1,2,and 3 *** found that the highest microwave power(20 kW)and the longest exposure duration(3 min)produced the greatest reduction in total aerobic count and total fungal count,reducing them by up to 1.21 and 5.01 log(CFU/g),*** findings provided insights into the used to high-power,shortduration 915 MHz microwave technology for decontamination purposes in rough rice to help improve the microbial safety of *** aim is to develop a single-pass drying approach for microbial inactivation in rice processing facilities while ensuring that the yield and quality is not compromised.

关键词： microwave insight facilities

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Barley Protein LFBEP-C1 from Lactiplantibacillus plantarum dy-1 Fermented Barley Extracts by Inhibiting Lipid Accumulation in a Caenorhabditis elegans Model

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Biomedical and Environmental Sciences 2024年第4期37卷 377-386页

作者： ZHANG Jia Yan LIU Meng Ting LIU Yu Hao DENG Huan BAI Juan XIE Jian Hua XIAO Xiang School of food and Biological engineering Jiangsu UniversityZhenjiang 212013JiangsuChina State Key Laboratory of food Science and Technology Nanchang UniversityNanchang 330047JiangxiChina

Objective This study aimed to investigate the lipid-lowering activity of LFBEP-C1 in high glucose-fed Caenorhabditis elegans(***).Methods In this study,the fermented barley protein LFBEP-C1 was prepared and tested for its potential anti-obesity effects on *** worms were fed Escherichia coli OP50(*** OP50),glucose,and different concentrations of *** size,lifespan,movement,triglyceride content,and gene expression were *** results were analyzed using ANOVA and Tukey's multiple comparison *** Compared with the model group,the head-swing frequency of *** in the group of LFBEP-C1 at 20μg/mL increased by 33.88%,and the body-bending frequency increased by 27.09%.This indicated that LFBEP-C1 improved the locomotive ability of *** average lifespan of *** reached 13.55 days,and the body length and width of the *** decreased after LFBEP-C1 ***,LFBEP-C1 reduced the content of lipid accumulation and triglyceride *** expression levels of sbp-1,daf-2,and mdt-15 significantly decreased,while those of daf-16,tph-1,mod-1,and ser-4 significantly increased after LFBEP-C1 *** in these genes explain the signaling pathways that regulate lipid *** LFBEP-C1 significantly reduced lipid deposition in *** fed a high-glucose diet and alleviated the adverse effects of a high-glucose diet on the development,lifespan,and exercise behavior of *** addition,LFBEP-C1 regulated lipid metabolism mainly by mediating the expression of genes in the sterol regulatory element-binding protein,insulin,and 5-hydroxytryptamine signaling pathways.

关键词： LFBEP-C1 Fermentation Protein Caenorhabditis elegans Lipid accumulation Signaling pathway

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Titanium dioxide E171 consumption exacerbates Listeria monocytogenes infection in mice

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food Quality and Safety 2024年第1期8卷 68-80页

作者：滕跃王瑷琳赵东云李国鹏刘泷泽邹悦夏效东 State Key Laboratory of Marine food Processing and Safety Control National Engineering Research Center of SeafoodSchool of Food Science and TechnologyDalian Polytechnic UniversityDalianChina

The food additive titanium dioxide is commonly utilized to enhance the appearance and flavor of food ***,this substance has been linked to gastrointestinal *** aim of this study was to investigate the impact of dietary exposure of titanium dioxide E171 on Listeria monocytogenes infection in *** were mainly divided into the control,LM group(*** infection),and E171+LM groups(E171 supplementation before *** infection).Pre-exposure to E171 resulted in increased bacterial counts in the liver,spleen,ileum,colon,mesenteric lymph nodes,and feces of mice after *** ***,E171 exposure increased the levels of pro-inflammatory cytokines while attenuating the levels of anti-inflammatory cytokines in mice infected with ***,mice in the E171+LM group exhibited considerably more severe colonic inflammation and worse intestinal barrier function than mice in the LM *** 16S rRNA gene sequencing revealed a shift in the composition of the gut microbiota of mice in the E171+LM group,characterized by a decrease in the relative abundance of Firmicutes and a decrease in the Firmicutes-to-Bacteroidetes *** levels of acetate,butyrate,and isobutyrate were markedly decreased within the cecum of mice in the E171+LM group in comparison to mice in the LM *** conclusion,these results suggest that E171 exposure could exacerbate *** infection in mice,which may provide useful information for future risk assessment of this commonly used food additive.

关键词： E171 L.monocytogenes intestinal barrier function inflammatory responses gut microbiota.

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Metabolite acetyl-L-carnitine participates in Bifidobacterium animalis F1-7 to ameliorate atherosclerotic inflammation by downregulating theTLR4/NF-κB pathway

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food Science and Human Wellness 2024年第2期13卷 813-822页

作者： Xi Liang Zhe Zhang Xiaoying Tian Qingyu Cui Haiyan Lu Maozhen Zhao Tongjie Liu Huaxi Yi Pimin Gong Lanwei Zhang Department of Nutrition and food Hygiene School of public healthQingdao UniversityQingdao 266071China College of food Science and engineering Ocean University of ChinaQingdao 266003China

This study aimed to explore the effect of Bifidobacterium animalis F1-7 on the improvement of atherosclerotic *** model ApoE^(-/-)mice were orally administered with *** F1-7 for 12 *** probiotic intervention reduced the plaque areas in aorta and the accumulation of macrophages,and downregulated the expression of toll-like receptor 4(TLR4)/nuclear factorκB(NF-κB)pathway to reduce the levels of inflammatory *** widely-targeted metabolomics analysis showed that acetyl-L-carnitine(ALC)in the intestine of atherosclerotic mice was significantly increased after *** F1-7 *** analysis proved that ALC was associated with atherosclerotic inflammatory *** using oxidized low density lipoprotein induced macrophage foam cells,we further verified that ALC could reduce lipid accumulation and inflammatory response in foam cells by downregulating the TLR4/NF-κB ***,our results revealed that *** F1-7 upregulated the metabolite ALC to downregulate the inflammatory responses,leading to the reduction of plaque accumulation of atherosclerosis.

关键词： Bifidobacterium animalis F1-7 Atherosclerosis Inflammation Metabonomics Acetyl-L-carnitine

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The role of a novel antibacterial substance,cyclic opine-producing Lacticaseibacillus rhamnosus LS8 in ameliorating ulcerative colitis:a fecal microbiota transplantation study

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food Science and Human Wellness 2024年第2期13卷 778-790页

作者： Tao Wang Shuang Wang Shuchen Dong Ruiling Wang Shuxuan Wang Jie Yang Xin Wang Xin Lü College of food Science and engineering Northwest Agriculture and Forestry UniversityYangling 712100China Faculty of food Science and engineering Kunming University of Science and TechnologyKunming 650500China School of Life Science and Technology Xinjiang UniversityUrumqi 830046China

Intestinal microbiota imbalance may worsen the progression of ulcerative colitis(UC).Lacticaseibacillus rhamnosus LS8(LR)has the potential ability to regulate microbiota through producing a novel antibacterial substance,cyclic opine:*** study aimed to investigate whether LR could ameliorate dextran sulfate sodium-induced UC in mice via modulating intestinal microbiota using fecal microbiota transplantation(FMT)*** results showed that both LR and FMT attenuated UC as evidenced by 1)alleviating disease activity index and colonic pathology;2)up-regulating MUCs and tight junction proteins;3)increasing oxidative mediators and decreasing antioxidant mediators;4)down-regulating proinflammatory cytokines and *** results were mainly attributable to the microbiota-regulating effect of LR,including increasing beneficial bacteria(like Akkermansia)and its related SCFAs,while decreasing harmful bacteria(like Proteobacteria)and its related LPS,thereby suppressing the hyperactivation of TLR4/NF-κB ***,LR can alleviate UC and is a potential dietary supplement to attenuate UC.

关键词： Gut barrier Gut microbiota Fecal microbiota transplantation Lacticaseibacillus rhamnosus Oxidative stress Ulcerative colitis

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