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Evaluation of in situ spoilage ability of common facultative anaerobic bacteria and confirmation of volatile spoilage markers in vacuum-packaged lamb

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food Science and Human Wellness 2024年

作者： Xiangyuan Wen Dequan Zhang Su Wang Zhiyuan Xiao Xin Li Debao Wang Wei Yang Chengjun Min Chengli Hou Institute of food Science and technology， Chinese Academy of Agricultural Sciences， Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process， Ministry of Agriculture and Rural Affairs Institute of Agricultural Product Processing and Nutritional Health， Chinese Academy of Agricultural Sciences (Cangzhou) Sunrise Material Co.， Ltd Jiangyin Beijing Ershang Meat food Group Co.， Ltd

Microbial growth causes lamb spoilage. This study explored the spoilage ability of Latilactobacillus sakei (L. sakei)， Serratia proteamaculans (S. proteamaculans) and Hafnia proteus (H. proteus) in vacuum-packed raw lamb， including growth ability， degradation of protein and lipid， and change of volatile organic compounds (VOCs) profile， meanwhile screened the key VOCs produced by the targeted strains with meat background excluding， finally confirmed the volatile spoilage marker of vacuum-packaged lamb by comparing with our previous work. The results showed that L. sakei， S. proteamaculans and H. proteus had excellent growth ability. L. sakei inoculated group significantly reduced the pH value， showed higher TCA-soluble peptides content， and excellently degraded sarcoplasmic and myofibrillar proteins. About free amino acids， L. sakei significantly degraded serine， arginine and aspartic acid， while S. proteamaculans and H. proteus significantly degraded serine and lysine. In addition， L. sakei had a strongest effect on promoting free fatty acids production， followed by S. proteamaculans and finally H. proteus. Evaluating from various indicators， the co-culture of the three strains did not have any effect. The key volatiles produced by L. sakei were 1-hexanol， acetic acid and hexanoic aicd， S. proteamaculans were 1-hexanol and acetoin， and H. proteus was 1-hexanol， acetic acid and acetoin. In the end， 1-hexanol， hexanoic acid and acetoin were proven to be spoilage markers for vacuum-packaged and chilled lamb. This study can provide fundamental information for inhibiting and rapid identification of spoilage in vacuum-packaged lamb.

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Pomegranate peel polyphenols improves diet-induced obesity and promotes adipose browning development through gut microbiota in mice

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food Science and Human Wellness 2024年

作者： Zhuoting Luo Xiaoyu Song Mengting Li Jianke Li Chen Hou University Key Laboratory of food Processing Byproducts for Advanced Development and High Value Utilization， Shaanxi Normal University College of food Engineering and Nutritional Science， Shaanxi Normal University

Gut microbiota regulate the activation of adipose browning， which promote energy dissipation and combat diet-induced obesity. Pomegranate peel polyphenols (PPPs) have been shown to reduce obesity， regulate lipid metabolism in adipose tissue， and modulate the composition of gut microbiota in animal fed high-fat diet (HFD). However， the role of gut microbiota in the improvement of obesity by PPPs has not been elucidated. In current study， we applied antibiotics to inhibit gut microbiota in mice fed HFD and treated with PPPs. The results showed that the inhibition of gut microbiota impair the effect of PPPs on reducing obesity and promoting adipose browning， and change the fecal metabolomic profiles in respond to PPPs. Moreover， the inhibition of gut microbiota supressed the promotive effects of PPPs on the levels of Akkermansia and microbiota-related metabolites， such as urolithin A， short-chain fatty acids (SCFAs)， and bile acids (BAs)， which were associated with activating adipose browning. Therefore， our results suggested that the presence of gut microbiota is essential for PPPs to ameliorate HFD-induced obesity. The related bacteria or metabolites generated by the interaction between PPPs and microbiota promote adipose browning and facilitate the beneficial effects of PPPs.

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The swirl and pyrolysis reaction synergistically enhance solid-solid heat transfer and product separation in cyclone pyrolyzer Author links open overlay panel

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Particuology 2024年第8期91卷 118-127页

作者： Haorui Niu Jingxuan Yang Wenhao Lian Nan Zhang Yongguo Li Hongzheng Ren Xiaogang Hao Guoqing Guan College of Chemical Engineering and technology Taiyuan University of TechnologyTaiyuan030024 China School of Chemical Engineering and technology North University of ChinaTaiyuan030051 China CNNC Key Laboratory on Radioactive Gas Purification technology China Institute for Radiation ProtectionTaiyuan030006 China Energy Conversion Engineering Laboratory Institute of Regional InnovationHirosaki University3-BunkyochoHirosaki036-8561Japan

Cyclone pyrolyzer is a novel type of downer that combines centrifugal force field and double-layer cyclone *** on transfer behavior is helpful to optimize the pyrolyzer to meet the needs of *** this study,the Computational Particle Fluid Dynamics(CPFD)model is used to analyze the transfer behavior of binary particles,and finds that the swirl and reaction have a synergistic *** effect can increase the heating rate of the particles to the range of flash pyrolysis,and its mechanism lies in the flow field structure of the *** to the centrifugal force field,the particles gather to the near *** rapid swirl,which facilitates intense gas-solid heat transfer,leads to the rapid heating and pyrolysis of biomass *** the pyrolysis proceeds,the mass of the biomass particles becomes smaller and they are more easily affected by the gas flow in *** the action of gas flow,char particles serve as new heat carrier to form the inner cycle of particles,which strengthens the heating *** pyrolysis products are discharged from the exhaust port in time with the flow field of the pyrolyzer to achieve separation from the heat carrier and inhibit the occurrence of secondary reactions.

关键词： Biomass pyrolysis Cyclone pyrolyzer Intra-particle circulation Synergistic effect

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Characterization of the effects of hyaluronan oligosaccharides on human gut microbiota using a simulated batch fermentation system

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food Science and Human Wellness 2024年

作者： Xinwei Gao Hongkang Zhu Litao Hu Jieyu Sun Wenjie Zuo Ping Liu Yang Wang Guocheng Du Zhen Kang The Science Center for Future foods， Jiangnan University The Key Laboratory of Carbohydrate Chemistry and Biotechnology， Ministry of Education， Jiangnan University The Key Laboratory of Industrial Biotechnology， Ministry of Education， School of Biotechnology， Jiangnan University School of food Science and technology， Jiangnan University

The prebiotic effects of hyaluronan (HA) are widely recognized， contributing to improved gut health and immune modulation. Despite its extensive use as dietary supplement， the specific interactions between HA oligosaccharides (o-HAs) and the gut microbiome remain largely unexplored. To investigate its role and metabolic fate in gut homeostasis， 200 mg/day of o-HAs (average molecule weight 1k Da) were added to an automated computer-controlled SIMulator of the Gastrointestinal tract (SIMGI). The results revealed a significant reshaping of the intestinal flora composition by o-HAs， notably reducing the Firmicutes/Bacteroides ratio. Fermentation of o-HAs by gut microbiota significantly increased the abundance of Bifidobacteria， Prevotellaceae＿Prevotella， Dialister， Eubacterium， and Sutterella， but decreased that of Catenibacterium， Oscillospira， Klebsiella， and Citrobacter (P < 0.05). This corresponded with significant enhancements in the content of short-chain fatty acids (SCFAs) such as acetic acid， propionic acid and n-butyric acid， highlighting the significant impact of o-HAs at the genus level. Furthermore， analysis of microbial function predicted the downregulation of pathological events in nine human diseases， particularly infectious ones (parasitic and bacterial). Potential inhibitions were observed in metabolic pathways associated with pentose and glucuronate interconversions as well as cationic antimicrobial peptide resistance. These findings underscore the in vitro prebiotic effects of o-HAs and their potential relevance in managing diverticular diseases or preventing metabolic disorders through the regulation of gut microbiota.

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Exfoliation and Engineering of 2D Materials Through Electrochemistry

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CCS Chemistry 2024年第10期6卷 2368-2391页

作者： Sheng Yang Panpan Zhang Ali Shaygan Nia Xinliang Feng Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 201203 State Key Laboratory of Material Processing and Die&Mould technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074 Center for Advancing Electronics Dresden(cfaed) Faculty of Chemistry and Food ChemistryTechnische Universität DresdenDresden 01069 Max Planck Institute for Microstructure Physics Halle(Saale)06120

Two-dimensional(2D)materials offer countless possibilities for next-generation(opto)electronic devices because of their diverse and tailorable physicochemical *** bridge the gap between fundamental science and practical applications,simple-to-use universal approaches are essential for the mass production of 2D materials with specific target *** intercalation/exfoliation stands out from many up-scalable synthetic strategies,thanks to its great time efficiency,mild working conditions,and simple *** the use for direct exfoliation of 2D materials,device-level controllable intercalation of guest species often results in rich phase diagrams with competing orders and ground states in 2D systems,giving rise to new exotic quantum ***,making use of electrochemistry in ion intercalation and host–guest interaction is crucial to expand the library,as well as the function of 2D ***,we present a focused review of the exciting advances of electrochemical exfoliation and engineering of 2D materials,including intercalation strategies,intercalation chemistry,exfoliation mechanisms,material properties,and potential *** outlook on the major challenges and perspectives is also presented at the end of the discussion.

关键词： intercalation exfoliation 2D materials electrochemistry

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Transcriptome Analysis of Inflorescence Development at the Five-Leaf Stage in Castor(Ricinus communis L.)

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 713-723页

作者： Yong Zhao Yaxuan Jiang Li Wen Rui Luo Guorui Li Jianjun Di Mingda Yin Zhiyan Wang Fenglan Huang Fanjuan Meng College of Life Science Baicheng Normal UniversityBaicheng137000China College of Life Science and food Inner Mongolia University for the NationalitiesTongliao028000China College of Life Science Northeast Forestry UniversityHarbin150040China Key Laboratory of Castor Breeding of the State Ethnic Affairs Commission Inner Mongolia Minzu UniversityTongliao028043China Inner Mongolia Industrial Engineering research Center of Universities for Castor Inner Mongolia Minzu UniversityTongliao028043China Inner Mongolia Key Laboratory of Castor Breeding and Comprehensive Utilization Inner Mongolia Minzu UniversityTongliao028000China Inner Mongolia Engineering research Center of Industrial technology Innovation of Castor Inner Mongolia Minzu UniversityTongliao028000China

The yield of castor is influenced by the type of inflorescence and the proportion of female ***,there are few studies on the genetic mechanism involved in the development and differentiation of castor *** this study,we performed transcriptomic analyses of three different phenotypes of inflorescences at the five-leaf *** comparison to the MI(complete pistil without willow leaves),290 and 89 differentially expressed genes(DEGs)were found in the SFI(complete pistil with willow leaves)and the BI(monoecious inflorescence),*** the DEGs,104 and 88 were upregulated in the SFI and BI,respectively,compared to the *** addition,186 DEGs and 1 DEG were downregulated in the SFI and BI compared to the ***,we conducted GO and KEGG enrichment analyses of the *** comparison to the MI,the SFI and BI exhibited the enrichment of functional branches in DEGs,specifically in pollen wall assembly,pollen development,and cellular component assembly involved in *** our study,RADL5 showed low expression levels between SFI-vs.-MI *** addition,we found that the expression of NAC in the SFI differed from that in MI and BI,and some genes related to hormonal signaling changed their expression levels during inflorescence *** results reveal the genetic mechanism of sex genotypes in castor,which will not only guide researchers in the breeding of castor but also provide a reference for genetic research on other flowering plants.

关键词： Ricinus communis L RNA-Seq inflorescence

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Nutritional quality and safety aspects of wild vegetables consume in Bangladesh

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Asian Pacific Journal of Tropical Biomedicine 2016年第2期6卷 125-131页

作者： Miah Mohammed Abdus Satter Mohammed Murtaza Reza Linkon Khan Syeda Absha Jabin Nusrat Abedin Mohammed Faridul Islam Badhan Shaha Institute of food Science and technology Bangladesh Council of Scientific and Industrial Research (BCSIR) Department of food Science and technology Moulana Bhasani University BCSIR laboratories Dhaka Bangladesh Council of Scientific and Industrial Research (BCSIR)

Objective: To evaluate the nutritional composition, including major minerals, essential trace elements and toxic heavy metals of five different wild vegetables Dhekishak(Dryopteris filix-mas), Helencha(Enhydra fluctuans), Kalmishak(Ipomoea aquatica),Patshak(Corchorus capsularis) and Shapla stem(Nymphaea stellata) and their safety ***: Proximate parameters moisture, ash, fat, fiber, protein, carbohydrate and energy; major minerals Na, K, Ca and Mg; trace elements Fe, Zn and Cu; and toxic heavy metals Pb, Cd, Cr, Ni and Hg were evaluated in the selected wild vegetables using the standard food analysis ***: The results from nutritional analysis showed that all the wild vegetables used in this study had a low content of crude fat and high content of moisture, ash, crude protein,crude fiber, carbohydrate and energy having the recommended dietary allowances. The vegetables were also rich in major minerals Na, K, Ca and Mg, sufficient in essential trace elements Fe, Cu and Zn while the heavy metals Pb, Cr and Ni were detected higher in amount in all the vegetables except Patshak than the limits recommended by food and Agriculture Organization/World Health Organization. The heavy metals Cd and Hg were not detected in any ***: The outcome of this study suggests that the wild vegetables have very good nutritional potential to meet the recommended dietary allowances, but special awareness should be taken for public health concern about the high level of Pb, Cr and Ni which exceed the food and Agriculture Organization/World Health Organization recommended limits for the metals in vegetables.

关键词： Wild vegetables Nutritional quality Mineral contents Heavy metals Safety aspects

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In situ sulfur-doped mesoporous tungsten oxides for gas sensing toward benzene series

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Chinese Chemical Letters 2024年第7期35卷 502-507页

作者： Yu Deng Yan Liu Yonghui Deng Jinsheng Cheng Yidong Zou Wei Luo State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China Department of Chemistry State Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsiChEMFudan UniversityShanghai 200433China Department of Polymeric Materials School of Materials Science and EngineeringTongji UniversityShanghai 201804China Henry-Fork School of food Sciences Shaoguan UniversityShaoguan 512005China State Key Lab of Transducer technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

Benzene series as highly toxic gases have inevitably entered human life and produce great threat to human health and ecological environment,and thus it is distinctly meaningful to monitor benzene series with quickly,real-time and efficient ***,novel sulfur-doped mesoporous WO_(3)materials were synthesized via classical in-situ solvent evaporation induced co-assembly strategy combined with doping engineering,which possessed highly crystallized frameworks,high specific surface area(40.9–63.8 m^(2)/g)and uniform pore size(~18 nm).Benefitting from abundant oxygen vacancy and defects via S-doping,the tailored mesoporous S/m WO_(3)exhibited excellent benzene sensing performance,including high sensitivity(50 ppm vs.48),low detection limit(ca.500 ppb),outstanding selectivity and favorable *** addition,the reduction of band gap resulted from S-doping promotes the carrier migration in the sensing materials and the reaction at the gas–solid sensing *** provides brand-new approach to design sensitive materials with multiple reaction sites.

关键词： Mesoporous materials Benzene series Tungsten oxides Sulfur doping Gas sensor

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Novel energy recovery from an integrated municipal solid waste and leachate treatment system

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Waste Disposal and Sustainable Energy 2024年第1期6卷 53-61页

作者： Siti Salwa Khamis Hadi Purwanto Hamzah Mohd Salleh Alya Naili Rozhan Mohamed Abdur Rahman Mahammadsalman Warimani Noor Alam Faculty of Engineering International Islamic University MalaysiaJalan Gombak53100Kuala LumpurMalaysia Department of Engineering Management Universitas Internasional Semen IndonesiaGresikIndonesia Halalan Thayyiban research Centre Sultan Sharif Ali Islamic UniversityBandar Seri BegawanBrunei Department of Mechanical Engineering P.A.College of EngineeringMangaloreKarnataka574153India Department of Mechanical Engineering Malaysia-Japan International Institute of TechnologyUniversity of Technology Malaysia54100Kuala LumpurMalaysia

Population growth,waste generation,and massive waste mismanagement have led to environmental *** of municipal solid waste(MSW)requires an efficient and sustainable integrated *** integrated thermal processing of MSW is one of the best waste management *** this study,energy analysis of MSW is carried out based on the material and energy balance of 2000 kg wet MSW,which contains 50%*** the leachate is removed,the dry MSW is sent for carbon content enhancement in carbonization to produce MSW-based ***,the combustion of MSW-based char provided high heat and syngas to be used in a hydrothermal process for MSW leachate *** result shows that the char fuel of MSW produces a sufficient amount of energy,13501.29 MJ(84.55%),in the form of synthetic gas by-product,which has a big potential as an energy *** novelty of the proposed integrated thermal system is to produce 84.55%synthetic gas by-product,which is used for electricity production,cooking,food,and heat energy for industrial *** proposed applications of this paper offer insightful information for policymaking regarding novel MSW techniques,which are economical,energy-efficient,and environmentally ***,it increases the effectiveness of MSW utilization.

关键词： Energy Carbonization Hydrothermal Municipal solid waste Integrated system

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The current situation of semen analysis in China,based on a survey of 296 laboratories

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Asian Journal of Andrology 2024年第2期26卷 220-221页

作者： Long-Long Fu Ying Liu Xiao-Wei Wang Fang Zhou Ying Guo Wen-Hong Lu Yi-Qun Gu National Health Commission Key Laboratory of Male Reproductive Health Reproductive Health Research CenterNational Research Institute for Family PlanningBeijing 100081China Institute of Pediatric research Children's Hospitalof Soochow UniversitySuzhou 215025China

Dear Editor,Semen analysis is a basic test to assess male fertility and is a fundamental test in assisted reproductive *** the first publication of World Health Organization(WHO)Laboratory Manual of Human Semen and Sperm-Cervical Mucus Interaction in 1980,to the publication of the WHO Manual,6th edition in 2021,these 40 years have been recognized as providing a global standard that is widely used in research and clinical laboratories *** WHO Manual,6th edition in Chinese,which we have been authorized by the WHO to translate,will be published soon.

关键词： technology. analysis translate

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