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Journal of Future foods 2024年第4期4卷 343-352页

作者： Junli Liu Wei Zhao Aixia Zhang Pengliang Li Jingke Liu institute of Biotechnology and food Science Hebei Academy of Agriculture and Forestry SciencesShijiazhuang 050000China

Sourdough flavors were closely related to microbial *** microbial diversity of foxtail millet dough during fermentation has never been ***,the metabolic potential and diversity of the bactenial community were analyzed by metagenomic during dough *** was the dominant phylum in the dough,within heterofementative lactic acid bacteria(***,Limosilactobacillus,Pediococcus and Lactobacillus)as the most abundant *** was gradually inhibited after ***_crustorum was notably found abundant during dough ***_fermentum increased markedly during fermentation,while Companilactobacillus_cnustorum decreased *** futher exploration,genes associated with metabolism were annotated through ***,Companilactobacillus and Pediococcus were actively engaged in glycolysis(ko00010),starch and sucrose metabolism(ko00500),and pyruvate metabolism(ko00620),leading in part to 1actic and acetic acid acumulations and dough *** and Lactiplantibacillus were the main contributors to key aninopeptidases ox/and transaminases involved in amino acid metabolism,which was nesponsible for flavor metabolite *** study will provide an enhanced understanding of the predominance and diversity of dough bactenial communities,and contribute to future strain screening in the dough for better flavor.

关键词： Sourdough Foxtail millet Metagenomics Gilycolysis Amino acid biosynthesis

Antibacterial mechanism of kojic acid and tea polyphenols against Escherichia coli O157:H7 through transcriptomic analysis

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food Science and Human Wellness 2024年第2期13卷 736-747页

作者： Yilin Lin Ruifei Wang Xiaoqing Li Keren Agyekumwaa Addo Meimei Fang Yehui Zhang Yigang Yu School of food sciences and Engineering South China University of TechnologyGuangzhou 510640China Sericulture&Agri-food Research institute Guangdong Academy of Agricultural sciences Key Laboratory of Functional FoodsMinistry of Agriculture and Rural AffairsGuangdong Key Laboratory of Agricultural Products ProcessingGuangzhou 510610China Research Center of food Safety and Detection College of Food Science and EngineeringSouth China University of TechnologyGuangzhou 510640China

Escherichia coli O157:H7 is one of the major foodborne pathogenic bacterial that cause infectious diseases in *** previous found that a combination of kojic acid and tea polyphenols exhibited better activity against *** O157:H7 than using either *** study aimed to explore responses underlying the antibacterial mechanisms of kojic acid and tea polyphenols from the gene *** functional enrichment analysis by comparing kojic acid and tea polyphenols individually or synergistically against *** O157:H7 found that acid resistance systems in kojic acid were activated,and the cell membrane and genomic DNA were destructed in the cells,resulting in“oxygen starvation”.The oxidative stress response triggered by tea polyphenols inhibited both sulfur uptake and the synthesis of ATP,which affected the bacteria's life metabolic ***,we found that kojic acid combined with tea polyphenols hindered the uptake of iron that played an essential role in the synthesis of DNA,respiration,tricarboxylic acid *** results suggested that the iron uptake pathways may represent a novel approach for kojic acid and tea polyphenols synergistically against *** O157:H7 and provided a theoretical basis for bacterial pathogen control in the food industry.

关键词： Kojic acid Tea polyphenols Antibacterial mechanism Escherichia coli O157:H7 RNA-seq

Two intestinal microbiota-derived metabolites, deoxycholic acid and butyrate, synergize to enhance host defense peptide synthesis and alleviate necrotic enteritis

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Journal of Animal Science and Biotechnology 2024年第3期15卷 1158-1172页

作者： Dohyung M.Kim Jing Liu Melanie A.Whitmore Isabel Tobin Zijun Zhao Guolong Zhang Department of Animal and food sciences Oklahoma State UniversityStillwaterOKUSA

Background Necrotic enteritis(NE)is a major enteric disease in poultry,yet effective mitigation strategies remain *** acid(DCA)and butyrate,two major metabolites derived from the intestinal microbiota,have independently been shown to induce host defense peptide(HDP)***,the potential synergy between these two compounds remains *** To investigate the possible synergistic effect between DCA and butyrate in regulating HDP synthesis and barrier function,we treated chicken HD11 macrophage cells and jejunal explants with DCA and sodium butyrate(NaB),either individually or in combination,for 24 ***,we performed RNA isolation and reverse transcrip-tion-quantitative PCR to analyze HDP genes as well as the major genes associated with barrier *** further determine the synergy between DCA and NaB in enhancing NE resistance,we conducted two independent trials with Cobb broiler *** each trial,the diet was supplemented with DCA or NaB on the day-of-hatch,followed by NE induction through sequential challenges with Eimeria maxima and Clostridium perfringens on d 10 and 14,*** recorded animal mortality after infection and assessed intestinal lesions on d *** impact of DCA and NaB on the microbiota in the ileum and cecum was evaluated through bacterial 16S rRNA gene *** We found that the combination of DCA and NaB synergistically induced multiple HDP genes in both chicken HD11 cells and jejunal ***,the gene for claudin-1,a major tight junction protein,also exhibited synergistic induction in response to DCA and ***,dietary supplementation with a combination of 0.75 g/kg DCA and 1 g/kg NaB led to a significant improvement in animal survival and a reduction in intestinal lesions compared to either compound alone in a chicken model of ***,the cecal microbiota of NE-infected chickens showed a marked decrease in SCFA-producing bacteria such as Bacteroides,F

关键词： Bile acids Host defense peptides Metabolites Microbiome Necrotic enteritis Short-chain fatty acids

Insight into the spoilage heterogeneity of meat-borne bacteria isolates with high-producing collagenase

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food Science and Human Wellness 2024年第3期13卷 1402-1409页

作者： Haodong Wang Liangting Shao Jinhao Zhang Xinglian Xu Jianjun Li Huhu Wang Jiangsu Collaborative Innovation Center of Meat production and Processing Quality and Safety ControlCollege of Food Science and TechnologyNanjing Agricultural UniversityNanjing 210095China Yantai XiWang Meat food Co. Ltd.Yantai 264000China

Chilled chicken is inevitably contaminated by microorganisms during slaughtering and processing,resulting in *** parts of chilled chicken,especially wings,feet,and other skin-on products,are abundant in collagen,which may be the primary target for degradation by spoilage *** this work,a total of 17 isolates of spoilage bacteria that could secrete both collagenase and lipase were determined by raw-chicken juice agar(RJA)method,and the results showed that 7 strains of Serratia,Aeromonas,and Pseudomonas could significantly decompose the collagen *** gelatin zymography showed that Serratia liquefaciens(F5)and(G7)had apparent degradation bands around 50 kDa,and Aeromonas veronii(G8)and Aeromonas salmonicida(H8)had a band around.65 and 95 kDa,*** lipase and collagenase activities were detected isolate-by-isolate,with F5 showing the highest collagenase *** spoilage ability on meat in situ,F5 performed strongest in spoilage ability,indicated by the total viable counts,total volatile basic nitrogen content,sensory scores,lipase,and collagenase *** study provides a theoretical basis for spoilage heterogeneity of strains with high-producing collagenase in meat.

关键词： Bacteria Chilled chicken Heterogeneity Collagenase Spoilage

Comparison of carotenoid,chlorophyll concentrations and their biosynthetic transcript levels in different coloured cauliflower

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Horticultural Plant Journal 2024年第3期10卷 743-754页

作者： Fatemeh Izadpanah Katja Frede Forouzandeh Soltani Susanne Baldermann food Chemistry and Human Nutrition Leibniz Institute of Vegetable and Ornamental CropsTheodor-Echtermeyer-Weg 114979 GroßbeerenGermany Department of food Chemistry Institute of Nutritional SciencesUniversity of PotsdamArthur-Scheunert-Allee 114-11614558 NuthetalGermany Department of Horticultural Science University of TehranDaneshkade Ave31587-77871KarajIran Faculty of Life sciences:food Nutrition and HealthFood MetabolomeUniversity of BayreuthFritz-Hornschuch-Straße1395326 KulmbachGermany

Carotenoids and chlorophylls are among the most widely distributed pigments in nature that play essential roles in the photosynthetic apparatus and confer diverse colours in *** all vegetables,cauliflower(Brassica oleracea ***)is rich in phytochemicals and is an important crop grown all over the *** study investigates carotenoid and chlorophyll concentrations in differently pigmented cultivars and elucidates the role of transcriptional regulation of carotenoid accumulation including lutein andβ-***,we characterised changes in pigments by UHPLC-DAD-ToF-MS and changes in transcript levels of carotenoid metabolic genes by qRT-PCR in florets and leaves of orange(‘Jaffa'and‘Sunset'),purple(‘Di Sicilia Violetto'and‘Graffiti'),green(‘Trevi')and white(‘Clapton')*** levels of all carotenoid metabolic genes showed different transcript level patterns in the leaves and *** to the other cultivars,the orange cultivars had the highest levels ofβ-carotene in the florets and lutein in the leaves resulting in changes lutein/β-carotene *** the green cultivar,higher transcript levels were also found,especially for phytoene synthase and phytoene desaturase genes of the core biosynthesis ***,no increased carotenoid concentrations were observed,possibly due to a higher carotenoid turnover induced by the carotenoid cleavage dioxygenase 4 in the green *** the white(‘Clapton')and purple(‘Di Sicilia Violetto'and‘Graffiti')cultivars the phytoene desaturase transcript levels as well as carotenoid concentrations were *** concentrations changed in trend comparable to the carotenoid concentrations and were only significantly lower in the leaves of the orange cultivar‘Jaffa'.Also,the chlorophyll a/b ratio changed in‘Jaffa'.In florets the highest chlorophylls concentrations were observed for the green cultivar(‘Trevi')and the purple cultivar(‘Di Sicilia Violetto').Taken together,the study dem

关键词： Brassica oleracea L.var.botrytis Carotenoid Lutein β-Carotene Biosynthesis qRT-PCR

Immunomodulatory potential of exopolysaccharides from Lactiplantibacillus plantarum YY-112

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food Science and Human Wellness 2024年

作者： Mengfan Luo Wanyi Zhou Wenyang Tao Jianrong Xing Jingrui Li Yuxing Guo Ying Yang institute of food Science， Zhejiang Academy of Agricultural sciences School of food Science and Pharmaceutical Engineering， Nanjing Normal University

In vitro simulated colonic fermentation studies have shown the prebiotic potential of exopolysaccharides from Lactiplantibacillus plantarum YY-112 (YEPS). Its immunomodulatory effects and related mechanisms were systematically investigated in this study. We observed that YEPS intervene in immune responses and improve intestinal microbial structure in normal mice， including significantly increasing the relative abundance of Enterorhabdus and norank＿f＿＿norank＿o＿＿Clostridia UCG-014 as well as decreasing that of unclassified＿c＿＿Bacilli (P food additive.

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The in vitro digestion fates of diacylglycerol under different intestinal conditions:a potential lipid source for lipid indigestion patients

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food Science and Human Wellness 2024年第2期13卷 1079-1092页

作者： Qingqing Xu Weifei Wang Dongxiao Sun-Waterhouse Qian Zou Menglei Yan Xuan Liu Dongming Lan Yonghua Wang School of food Science and Engineering South China University of TechnologyGuangzhou 510640China Sericultural and Agri-food Research institute Guangdong Academy of Agricultural SciencesGuangzhou 510610China School of Chemical sciences The University of AucklandPrivate Bag 92019New Zealand Guangdong Youmei institute of Intelligent Bio-manufacturing Co. Ltd.Foshan 528200China

The in vitro digestion models mimicking the gastrointestinal(GI)tract of general population and lipid indigestion patients(with lower levels of bile salts or pancreatic lipase)were selected to investigate whether diacylglycerols(DAGs)are potential good lipid sources for these *** oil-based DAG(LD)and linseed oil(LT)were ***-based emulsion((83.74±1.23)%)had higher lipolysis degree than LT-based emulsion((74.47±1.16)%)when monitoring the GI tract of normal population as previously *** conditions seriously decreased the digestive degree of LT-based emulsion((40.23±2.48)%-(66.50±3.70)%)while showed less influence on LD-based emulsion((64.18±2.41)%-(81.85±3.45)%).As opposed to LT-based emulsion,LD-based emulsion exhibited preference for releasing unsaturated fatty acids(especially oleic acid andα-linolenic acid)due to their different glycerolipid ***-based emulsion showed potential for providing lipids and nutrients(including essential fatty acids)for lipid indigestion patients.

关键词： Diacylglycerol In vitro digestion Lipolysis level Cholestatic Exocrine pancreatic insufficiency

RACK1A promotes hypocotyl elongation by scaffolding light signaling components in Arabidopsis

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Journal of Integrative Plant Biology 2024年第5期66卷 956-972页

作者： Yajuan Fu Wei Zhu Yeling Zhou Yujing Su Zhiyong Li Dayan Zhang Dong Zhang Jinyu Shen Jiansheng Liang Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education institutes Department of BiologySchool of Life SciencesInstitute of Plant and Food SciencesSouthern University of Science and TechnologyShenzhen 518055China

Plants deploy versatile scaffold proteins to intricately modulate complex cell *** these,RACK1A(Receptors for Activated C Kinase 1A)stands out as a multifaceted scaffold protein functioning as a central integrative hub for diverse signaling ***,the precise mechanisms by which RACK1A orchestrates signal transduction to optimize seedling development remain largely ***,we demonstrate that RACK1A facilitates hypocotyl elongation by functioning as a flexible platform that connects multiple key components of light signaling ***1A interacts with PHYTOCHROME INTERACTING FACTOR(PIF)3,enhances PIF3 binding to the promoter of BBX11 and down-regulates its ***,RACK1A associates with ELONGATED HYPOCOTYL 5(HY5)to repress HY5 biochemical activity toward target genes,ultimately contributing to hypocotyl *** darkness,RACK1A is targeted by CONSTITUTIVELY PHOTOMORPHOGENIC(COP)1 upon phosphorylation and subjected to COP1-mediated degradation via the 26 S proteasome *** findings provide new insights into how plants utilize scaffold proteins to regulate hypocotyl elongation,ensuring proper skoto-and photo-morphogenic development.

关键词： Arabidopsis hypocotyl development light signaling components RACK1 scaffoldprotein

food security amid the COVID-19 pandemic in Central Asia:Evidence from rural Tajikistan

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Journal of Integrative Agriculture 2024年第8期23卷 2853-2867页

作者： Yuhan Zhao Chen Qian Yumei Zhang Xiande Li Kamiljon T.Akramov institute of Agricultural Economics and Development Chinese Academy of Agricultural SciencesBeijing 100081China Academy of Global food Economics and Policy College of Economics and ManagementChina Agricultural UniversityBeijing 100083China International food Policy Research institute(IFPRI) WashingtonD.C.20005USA

food security has been long understudied in the context of Central *** present an analysis examining household-level food demand for Tajikistan and assessing the magnitude of its food security changes during the COVID-19 *** on an extensive household survey data set from Tajikistan,we estimate the expenditure,income,and price elasticities for nine food categories using the QUAIDS ***,we develop a microsimulation model using the estimated elasticities to assess the dual impact of declining remittance income and rising food prices stemming from the pandemic *** are significant differences in demand elasticities across food groups,with high elasticities observed for nutritious foods,such as meat,fruit,eggs,and milk,in rural ***,our findings show that changes in remittance income and food prices significantly negatively affected food security for rural households during the COVID-19 *** findings have important implications for policymakers concerned about rural livelihoods and food security in remittance-receiving economies during the post-pandemic period.

关键词： international remittances food security COVID-19 Tajikistan Central Asia

Evaluation of ruminal methane and ammonia formation and microbiota composition as affected by supplements based on mixtures of tannins and essential oils using Rusitec

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Journal of Animal Science and Biotechnology 2024年第4期15卷 1607-1622页

作者： Giulia Foggi Melissa Terranova Matteo Daghio Sergej L.Amelchanka Giuseppe Conte Simon Ineichen Monica Agnolucci Carlo Viti Alberto Mantino Arianna Buccioni Michael Kreuzer Marcello Mele Department of Agriculture Food and Environment(DAFE)University of Pisa56124 PisaItaly AgroVet‑Strickhof ETH ZurichLindauSwitzerland Department of Agriculture FoodEnvironment and ForestryUniversity of FlorenceFlorence 50144Italy Centro Di Ricerche Agro‑Ambientali“E.Avanzi” University of PisaPisa 56122Italy School of Agricultural Forest and Food Sciences HAFLBern University of Applied SciencesZollikofenSwitzerland institute of Agricultural sciences ETH ZurichLindauSwitzerland

Background Dietary supplements based on tannin extracts or essential oil compounds(EOC)have been repeatedly reported as a promising feeding strategy to reduce the environmental impact of ruminant husbandry.A previous batch culture screening of various supplements identified selected mixtures with an enhanced potential to mitigate ruminal methane and ammonia *** these,Q-2(named after quebracho extract and EOC blend 2,composed of carvacrol,thymol,and eugenol)and C-10(chestnut extract and EOC blend 10,consisting of oregano and thyme essential oils and limonene)have been investigated in detail in the present study with the semi-continuous rumen simulation technique(Rusitec)in three independent *** this purpose,Q-2 and C-10,dosed according to the previous study,were compared with a non-supplemented diet(negative control,NC)and with one supplemented with the commercial EOC-based Agolin^(R) Ruminant(positive control,PC).Results From d 5 to 10 of fermentation incubation liquid was collected and analysed for pH,ammonia,protozoa count,and gas *** residues were collected for the determination of ruminal *** d 10,samples of incubation liquid were also characterised for bacterial,archaeal and fungal communities by high-throughput sequencing of 16S rRNA and 26S ribosomal large subunit gene *** of the duration of the fermentation period,Q-2 and C-10 were similarly efficient as PC in mitigating either ammonia(-37%by Q-2,-34%by PC)or methane formation(-12%by C-10,-12%by PC).The PC was also responsible for lower feed degradability and bacterial and fungal richness,whereas Q-2 and C-10 effects,particularly on microbiome diversities,were limited compared to *** All additives showed the potential to mitigate methane or ammonia formation,or both,in vitro over a period of 10 ***,several differences occurred between PC and Q-2/C-10,indicating different mechanisms of *** pronounced defaunation caused by PC a

关键词： Additive Bacteria Continuous culture Degradability Fermentation Fungi Greenhouse gas In vitro Microbiome Rumen