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Model prediction of inactivation of Aeromonas salmonicida grown on poultry in situ by intense pulsed light

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food Science and Human Wellness 2024年第2期13卷 1011-1017页

作者： Jingwen Wang Zhenzhen Ning Yifan Chen Xinglian Xu Huhu Wang Jiangsu Collaborative Innovation Center of Meat Production and processing Quality and Safety ControlCollege of Food Science and TechnologyNanjing Agricultural UniversityNanjing 210095China

The aim of this study was to evaluate the factors influencing the inactivation effect of intense pulsed light(IPL)on Aeromonas salmonicida grown on chicken meat and skin,and to further develop prediction models of *** this work,chicken meat and skin inoculated with meat-borne *** isolates were subjected to IPL treatments under different *** results showed that IPL had obvious bactericidal effect in the chicken skin and thickness groups when the treatment voltage and time were 7 V combined with 5 *** addition,the lethality curves of *** were fitted under IPL conditions of 3.5-7.5 *** comparison of statistical parameters revealed that the Weibull model could best fit the mortality curves and could accurately predict the mortality dynamic of *** grown on chicken *** further a secondary model between the scale factor b and the treatment voltage in Weibull model was established using linear equations,which determined that the secondary model could accurately predict the inactivation of *** study provides a theoretical basis for future prediction models of Aeromonas,and also provides new ideas for sterilization approaches of meat-borne Aeromonas.

关键词： Aeromonas salmonicida Intense pulsed light Inactivation Chicken meat Model

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Comprehensive characterization and detection of nut allergens in bakery foods using Q-TOF mass spectrometry and bioinformatics

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food Quality and safety 2024年第1期8卷 145-157页

作者： Daokun Xu Haolun Huang Zhen Liu YumeiWang Qinan Liu Xing Jiang JunYang Rui Ling Nanjing institute for food and Drug Control NanjingChina State Key Laboratory of food Science and Technology School of Food Science and TechnologyJiangnan UniversityWuxiChina Demonstration Collaborative Laboratory of Analysis and Detection Technology for food and Drug safety Nanjing Institute for Food and Drug Control and Agilent Technologies(China)NanjingChina Collaborative Laboratory for food safety Nanjing Institute for Food and Drug Control and SCIEX(China)NanjingChina

food allergy is a growing health issue worldwide and the demand for sensitive,robust and high-throughput analytical methods is *** recent years,mass spectrometry-based methods have been established for multiple food allergen *** the present study,a novel method was developed for the simultaneous detection of almond,cashew,peanut,and walnut allergens in bakery foods using liquid chromatography–mass *** unique to these four ingredients were extracted,followed by trypsin digestion,quadrupole time-of-flight(Q-TOF)mass spectrometry and bioinformatics *** raw data were processed by de-novo sequencing module plus PEAKS DB(database search)module of the PEAKS software to screen peptides specific to each nut *** thermal stability and uniqueness of these candidate peptides were further verified using triple quadrupole mass spectrometry(QQQ-MS)in multiple reaction monitoring(MRM)*** nut species was represented by four peptides,all of which were validated for label-free quantification(LFQ).Calibration curves were constructed with good linearity and correlation coefficient(r 2)greater than *** limits of detection(LODs)were determined to range from 0.11 to 0.31 mg/kg,and were compared with the reference doses proposed by Voluntary Incidental Trace Allergen Labelling(VITAL).The recoveries of the developed method in incurred bakery food matrices ranged from 72.5%to 92.1%with relative standard deviations(RSD)offood samples confirmed the presence of these *** conclusion,this method provides insight into the qualitative and quantitative detection of trace levels of nut allergens in bakery foods.

关键词： Nut allergen Q-TOF mass spectrometry peptides label-free quantitation bakery foods.

Sea cucumber derived sulfated sterols alter glucose metabolism by promoting gluconeogenesis and reducing glycogenesis in healthy mice

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food Science and Human Wellness 2024年

作者： Shanyun Yu Teng Wang Yingcai Zhao Xiaoyue Li Changhu Xue Yuming Wang Tiantian Zhang SKL of Marine food processing & safety Control， College of food Science and Engineering， Ocean University of China Sanya institute of Oceanography， Ocean University of China

Sea cucumber derived sulfated sterols (SS) significantly ameliorated insulin resistance and decreased lipid accumulation compared to plant sterols. Interestingly， our recent study found that intervention with sea cucumber sulfated sterols could significantly increase blood glucose levels of healthy mice in the presence of glucose， while cholesterol sulfate， as one of sulfated sterols， did not have the same effect. However， the exact mechanism of SS on glucose metabolism is still unknown. In the present study， we investigated the potential mechanism by which SS influenced blood glucose homeostasis in healthy mice. Results showed that intervention with sea cucumber sulfated sterols did not affect the levels of hormones related to glucose metabolism， while led to a significant decrease in the synthesis of liver glycogen and muscle glycogen. Besides， the expression of proteins associated with the promotion of gluconeogenesis dramatically increased in the mice intervened with sea cucumber sulfated sterols. These findings suggested that sea cucumber sulfated sterols might change blood glucose metabolism in healthy mice by reducing glycogenesis and promoting gluconeogenesis.

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Immunoregulatory influence of Sargassum carpophyllum polyphenol on the allergic reactions induced by shrimp tropomyosin

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food Science and Human Wellness 2024年

作者： Yueying Han Ziye Zhang Zihao Li Zhenxing Li Hong Lin State Key Laboratory of Marine food processing & safety Control， College of food Science and Engineering， Ocean University of China

Polyphenol is a kind of natural active substance with immunoregulatory activity. In this study， the immunoregulatory activities of Sargassum carpophyllum polyphenol (SCP) on the allergic reactions induced by shrimp tropomyosin were investigated. As the results， the SCP performed high hyaluronidase inhibition ability， which even greater than sodium chromoglycate (an anti-allergic medicine). SCP was able to affect the allergic reactions of RAW 264.7 macrophage cells via regulating the NF-κB， JNK1/2， Erk1/2 and p38 MAPK cellular signaling pathways， weakened the degranulation degree and secretion of IL-4， TNF-α and histamine， and promoted the secretion of IL-10 from RBL-2H3 mast cells. In BALB/c mouse model assay， after gavage of SCP， the mouse allergic symptoms got significantly alleviated， the cytokine (IL-4， IL-10 and IFN-γ) secretion of mouse spleen lymphocytes were significantly declined and the allergic lung damage was relieved， which indicated SCP performed strong both in vitro and in vivo anti-allergic functions. Therefore， SCP could serve as candidate anti-allergic bioactive substances for shrimp induced allergy via immunoregulation.

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Influence of preheating treatments on cyanide content， nutritional composition， physicochemical properties， color and oxidative stability of flaxseed meal

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中国油脂 2024年

作者： ZHOU Junzhuo CHU Pengfei DONG Guimei PEI Xuechen HUANG Jiaqian ZHENG Rui YIN Fawen ZHOU Dayong SKL of Marine food processing & safety Control， National Engineering Research Center of Seafood， Collaborative Innovation Center of Seafood Deep processing， Liaoning Province Key Laboratory for Marine food Science and Technology， School of food Science and Technology， Dalian Polytechnic University

This study aimed to investigate the effects of different preheating treatments （steaming， roasting and microwave） of flaxseed on cyanide content， nutritional composition， physicochemical properties， color and oxidative stability of flaxseed meal. The three preheating methods of flaxseed all significantly decreased the hydrocyanic acid （HCN） contents. By contrast， microwave was the most effective detoxification method. After 5 min of microwave treatment， the HCN content in flaxseed was reduced from 94.65 ± 1.68 mg/kg to 7.80 ± 0.57 mg/kg. In addition， the three preheating methods all significantly increased the polyphenol content， thiobarbituric acid reactive substances （TBARS）， peroxide value （POV）， and a*value， and slightly decreased polyunsaturated fatty acid （PUFA） contents， but significantly decreased total amino acid contents as well as L*， W*and b*values. Interestingly， the three preheating methods all improved the oxidative stability and color stability of flaxseed upon accelerated storage under 40 °C. Compared with steaming （120 ℃ for 20 min） and roasting （100 ℃ for 40 min）， microwave （560 W for 4 min） is recommended for decreasing cyanide content， as well as enhancing the flaxseed' stability and qualitative attributes.

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

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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

4-Hydroxy-2-Oxoglutaric Acid,A KeyMetabolite Involved in Trypsin-Regulation of Arginine Metabolism in Hylocereus undatus during Storage

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Phyton-International Journal of Experimental Botany 2024年第5期93卷 885-900页

作者： Bairu Li Jingyu Jia Hemin Wang Jiaju Sun Enyan Chen Xin Li College of food and Bioengineering Henan University of Science and TechnologyLuoyang471023China Henan Engineering Research Center of food Microbiology Luoyang471023China National Demonstration Center for Experimental food processing and safety Education Luoyang471000China

Trypsin,a novel superoxide scavenger,significantly enhances the storage quality of Hylocereus undatus(***).To elucidate the preservation mechanism of trypsin on ***,a widely targeted metabolomic analysis,and transcriptomics analysis were ***,a total of 453 metabolites were identified,with organic acids and their derivatives constituting the largest proportion(25%).Amino acids and their metabolites,prominent among organic acids,were further *** them,73 metabolites were associated with amino acids,and 37 exhibited significant *** most enriched Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway was arginine biosynthesis(map00220),with polyamine metabolites showing the most pronounced differences,particularly spermine(FC=1.7594).Compared with the control group,4-hydroxy-2-oxoglutaric acid was significantly upregulated(FC=2.117)in the process of spermine ***,the results of Gene Ontology(GO)and KEGG enrichment analysis of the *** transcriptome profile revealed that trypsin treatment led to 187 differentially expressed genes associated with *** GO and KEGG analyses exhibited significant enrichment in the spermine biosynthetic process(GO:0006597)(map:00220)within the arginine biosynthesis ***,most enzymes and metabolites within the spermine biosynthesis pathway in *** were *** results of the PPI network highlighted that ADC,SPDS,and SAMDC,among others,were pivotal proteins involved in trypsin-regulated arginine metabolism and spermine *** study revealed that trypsin could significantly delay postharvest senescence of *** at room *** effect might be attributed to trypsin triggering the synthesis of 4-hydroxy-2-oxoglutaric acid in the fruit peel,thereby promoting the biosynthesis of spermine and other polyamines.

关键词： Trypsin arginine transcriptomics widely targeted metabolomics

EuSHT Acts as a Hub Gene Involved in the Biosynthesis of 6-Hydroxyluteolin and Quercetin Induced by Salt Stress in Eucommia ulmoides

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2095-2113页

作者： Fuxin Li Enyan Chen Xinxin Chen Jingyu Jia Hemin Wang Jie Zhang Jianrui Sun Xin Li College of food and Bioengineering Henan University of Science and TechnologyLuoyang471023China Henan Engineering Research Center of food Microbiology Luoyang471023China National Demonstration Center for Experimental food processing and safety Education Luoyang471000China

Salt stress inhibits plant growth and affects the biosynthesis of its secondary *** are natural compounds that possess many important biological activities,playing a significant role in the medicinal activity of Eucommia ulmoides(***).To investigate the mechanism by which salt stress affects the biosynthesis of flavonoids in ***,a comprehensive analysis of metabolomics and transcriptomics was *** results indicated that salt stress led to the wilting and darkening of *** leaves,accompanied by a decrease in chlorophyll levels,and significantly induced malondialdehyde(MDA)and relative electrical *** salt stress,most metabolites in the flavonoid biosynthesis pathway of *** were upregulated,indicating that flavonoid biosynthesis is likely the main induced pathway under salt *** them,secondary metabolites such as 6-Hydroxyluteolin and Quercetin are likely key metabolites induced by salt *** correlation analysis of transcriptomics and metabolomics revealed that EuSHT is a hub gene induced by salt stress,promoting the production of flavonoids such as *** co-expression network showed a strong positive correlation between EuSHT and the biosynthesis of 6-Hydroxyluteolin and Quercetin,while it exhibited a negative correlation with Catechin *** branches leading to Luteolin and Dihydroquercetin are likely the main pathways for flavonoid compound biosynthesis in the plant stress response during salt *** results of this study provided a preliminary mechanism of secondary metabolites such as flavonoids in the medicinal plant *** induced by salt stress and provided new theoretical support for discussing the mechanism of plant stress *** also provided useful information for subsequent exploration of resistance genes in ***.

关键词： Eucommia ulmoides ﬂavonoid salt stress transcriptomics widely targeted metabolomics

Milk fat globule membrane supplementation protects againstβ-lactoglobul-ininduced food allergy in mice via upregulation of regulatory T cells and enhancement of intestinal barrier in a microbiota-derived short-chain fatty acids manner

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food Science and Human Wellness 2024年第1期13卷 124-136页

作者： Han Gong Tiange Li Dong Liang Jingxin Gao Xiaohan Liu Xueying Mao Key Laboratory of Functional Dairy Ministry of EducationCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijing 100083China Henan Engineering Technology Research Center of food processing and Circulation safety Control College of Food Science and TechnologyHenan Agricultural UniversityZhengzhou 450002China Applied Nutrition I China National Center for Food Safety Risk AssessmentBeijing 100022China

Milk fat globule membrane(MFGM),which contains abundant glycoproteins and phospholipids,exerts beneficial effects on intestinal health and *** aim of this study was to evaluate the protective effects and possible underlying mechanisms of MFGM on cow’s milk allergy(CMA)in aβ-lactoglobulin(BLG)-induced allergic mice *** was supplemented to allergic mice induced by BLG at a dose of 400 mg/kg body *** demonstrated that MFGM alleviated food allergy symptoms,decreased serum levels of lipopolysaccharide,pro-inflammatory cytokines,immunoglobulin(Ig)E,Ig G1,and Th2 cytokines including interleukin(IL)-4,while increased serum levels of Th1 cytokines including interferon-γand regulatory T cells(Tregs)cytokines including IL-10 and transforming growth factor-β.MFGM modulated gut microbiota and enhanced intestinal barrier of BLG-allergic mice,as evidenced by decreased relative abundance of Desulfobacterota,Rikenellaceae,Lachnospiraceae,and Desulfovibrionaceae,while increased relative abundance of Bacteroidetes,Lactobacillaceae and Muribaculaceae,and enhanced expressions of tight junction proteins including Occludin,Claudin-1 and zonula ***,MFGM increased fecal short-chain fatty acids(SCFAs)levels,which elevated G protein-coupled receptor(GPR)43 and GPR109A *** increased expressions of GPR43 and GPR109A induced CD103+dendritic cells accumulation and promoted Tregs differentiation in mesenteric lymph node to a certain *** summary,MFGM alleviated CMA in a BLG-induced allergic mice model through enhancing intestinal barrier and promoting Tregs differentiation,which may be correlated with SCFAs-mediated activation of *** findings suggest that MFGM may be useful as a promising functional ingredient against CMA.

关键词： Cow’s milk allergy Milk fat globule membrane Gut microbiota Short-chain fatty acid G protein-coupled receptor Regulatory T cell

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