检索结果-南通市图书馆

Microbiological Quality of “Rabilé”, a yeast Used for Fermentation of Dolo, a Local Beer in Dédougou, Burkina Faso

Open Journal of Applied Sciences 2024年第4期14卷 849-864页

作者： Amana Metuor Dabiré Nicolas Ouédraogo Cheick Alassane Djibila Damis Yves Patrik Bouniounou Molecular Biology and Genetics Laboratory (LABIOGENE) Universit&#233 Joseph Ki-Zerbo Ouagadougou Burkina Faso Training and Research Unit in Applied Sciences and Technologies Department of Biochemistry Microbiology University of Dedougou Dedougou Burkina Faso National Center for Research and Training on Malaria (CNRFP) Ouagadougou Burkina Faso

Sorghum beer or dolo is part of the eating habits of part of the population of Dédougou because of its low price compared with industrial beers. Its production is an ancestral tradition that uses traditional equipment and gives dolo organoleptic properties that are not found in industrial beers. The production process involves several stages, including fermentation, which itself comprises natural lactic fermentation followed by alcoholic fermentation using traditional yeasts, which are not controlled in any way. The general aim of this study is to assess the microbiological quality of these fermentative yeasts in the town of Dédougou, in order to contribute to the health safety of the population and the promotion of these local beers. Twenty samples of fermenting yeast were analyzed according to ISO standards, to isolate enterobacteria, total and faecal coliforms according to standard procedures for isolating these micro-organisms. The isolated strains were identified using the API20E gallery. Microbiological analyses revealed the presence of 51.17% enterobacteria, 45.38% total coliforms and 3.45% thermotolerant coliforms. We counted 40% Escherichia coli, 20% Enterobacter cloacae, 20% Klebsiella pneumoniae and 20% Klebsiella spp. All the strains detected are capable of surviving in hostile conditions and could harm the quality of the dolo, consumer health and cause real collective food poisoning in the town of Dédougou. This enabled us to assess the microbial quality of these yeasts and to propose more suitable measures for producing and preserving dolo under hygienic conditions to protect consumer health.

关键词： Dolo yeast Rabilé Microbiological Quality Bacteria

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Growth performance,nutrient digestibility,intestinal morphology,cecal mucosal cytokines and serum antioxidant responses of broiler chickens to dietary enzymatically treated yeast and coccidia challenge

引用

Journal of Animal Science and Biotechnology 2023年第4期14卷 1438-1450页

作者： Emmanuel Oluwabukunmi Alagbe Hagen Schulze Olayiwola Adeola Department of Animal Sciences Purdue UniversityWest LafayetteIN 47907USA Livalta PeterboroughCambridgeshire PE26FLUK

Background There is a growing search for natural feed additives to alleviate the deleterious effects of coccidia infection in poultry production.This study aimed to investigate the effect of enzymatically treated yeast(ETY) on the growth performance,nutrient digestibility,intestinal morphology,antioxidative status,and cecal mucosa cytokines of coccidia-challenged broiler chickens.Methods From d 1 to 14 post hatching,480 broiler chickens were allocated to 3 corn-soybean meal-based experimental diets with increasing concentrations of ETY(0,1,or 2 g/kg).The experiment was designed as a randomized complete block design with body weight(BW) used as a blocking factor.On d 14 post hatching,the birds were re-randomized within each of the 3 experimental diets.Each of the 3 diet groups was split into a challenge or no-challenge group.This resulted in a 3 × 2 factorial arrangement of treatments.The coccidia challenge was administered on d 15 by an oral gavage.Results Dietary ETY improved(P < 0.05) the G:F of birds on d 21 regardless of the challenge state and linearly increased(P < 0.01) the apparent ileal digestibility of dry matter(DM),nitrogen,and gross energy(GE).The coccidia challenge decreased(P < 0.05) BW gain and feed intake of broiler chickens and reduced(P < 0.01) the total tract retention of DM,GE,and nitrogen.The coccidia challenge increased(P < 0.01) the mRNA gene expression of TNFα,IL-1β,IL-10,and IL-6 in the cecal mucosa.There was a tendency(P ne = 0.08) for ETY to linearly reduce IL-1β expression.Additionally,ETY supplementation increased(P < 0.05) the geexpression of OCLN.Serum catalase increased(P < 0.05) with dietary ETY in broiler chickens on d 21.Dietary ETY linearly increased(P < 0.05) the ileal villus height to crypt depth ratio,and ileal goblet cell density in broiler chickens.The ileal and excreta oocyst counts decreased(P < 0.01) with increasing supplementation of dietary ETY in coccidia-challenged broiler chickens on d 21.Conclusions Dietary ETY enhanced nutrient utilization and augmented intestin

关键词： Broiler chickens Coccidia Goblet cells Growth performance Health Oocyst Peptides Postbiotics yeast

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Reclassification and Nomenclature of Common Pathogenic Fungi

引用

Advances in Microbiology 2024年第5期14卷 241-246页

作者： Xiaoni Xin Mengyuan Wang Mei Li Department Clinical Laboratory of Qingdao Municipal Hospital Qingdao China Department Clinical Laboratory of Children’ s Hospital Affiliated to Shandong University Jinan China

The accurate identification of pathogenic fungi is crucial for diagnosing and treating fungal infections. Recent advancements in molecular biotechnology, phylogenetic analysis, and the requirements of the Melbourne Code have led to changes in the classification and naming of fungi. These changes have caused significant confusion for medical laboratories and clinical personnel. This article summarizes the classification and new names of common pathogenic fungi to enhance fungi identification skills and provide accurate information for clinical diagnosis and treatment.

关键词： Fungi yeast Nomenclature 1 Species = 1 Name

来源：

维普期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Engineering yeast for bio-production of food ingredients

引用

Systems Microbiology and Biomanufacturing 2023年第1期3卷 2-11页

作者： Chunyang Cao Jiaoqi Gao Beiwei Zhu Yongjin J.Zhou Division of Biotechnology Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023People’s Republic of China National Engineering Research Center of Seafood Collaborative Innovation Center of Seafood Deep ProcessingLiaoning Province Collaborative Innovation Center for Marine Food Deep ProcessingSchool of Food Science and TechnologyDalian Polytechnic UniversityDalian 116034People’s Republic of China

The provision of an adequate and high-quality food supply is a challenging issue due to the continued growth of the population and the reduction of arable land resources.To solve these problems,new and efficient food manufacturing processes need to be developed to meet the needs for healthy and nutritious food.Metabolic engineering of microorganisms is a feasible approach to alleviate this problem due to its efficient biosynthesis.For thousands of years,yeast has been used as a cell factory for manufacturing bread,beer and wine.And the development of synthetic biology expands its ability for synthesis of food ingredients,fuels,pharmaceuticals and chemical products.This mini review focuses on metabolic engineering of yeast cell factories to synthesize compounds that have been used as food ingredients with highlighting four food flavors.

关键词： yeast Bio-products Metabolic engineering Food ingredients Cell factory

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Overview of yeast environmental stress response pathways and the development of tolerant yeasts

引用

Systems Microbiology and Biomanufacturing 2022年第2期2卷 232-245页

作者： Nai-Xin Lin Yan Xu Xiao-Wei Yu Lab of Brewing Microbiology and Applied Enzymology School of BiotechnologyJiangnan UniversityWuxi 214122China Key Laboratory of Industrial Biotechnology Ministry of EducationSchool of BiotechnologyJiangnan UniversityWuxi 214122China

yeast is widely used for industrial production of various types of products,such as ethanol and enzymes.However,its fermentation efficiency is strongly reduced by harmful environmental stresses.Specifically,harmful environmental stresses damage important cellular components,such as cell wall,cell membrane,proteins,etc.Then,these damages cause cellular metabolic disorders or even death.In the past decades,there has been a portfolio of studies on the environmental stress tolerance of yeasts,which mainly aimed at cell damages caused by different environmental stresses,different ways to improve yeast environmental stress tolerance or a tolerance mechanism for certain environmental stress.However,a comprehensive overview of how yeasts respond to environmental stresses is lacking,and the correlation of tolerance mechanism between different environmental stresses is unclear.In this review,we summarized the general damages induced by most of environmental stresses,the existing major mechanisms of environmental stress tolerance from the perspective of key signalling pathways,and the common ways to improve the resistance to environmental stresses in yeast cells.The tolerance mechanisms of yeast cells to different environmental stresses are diverse,but sometimes they share the same signalling pathway.Cells use sensors on the cell surface to recognize environmental stresses and transmit signals to the nucleus to cause changes in gene expression.By summarizing the main signalling pathways,including MAPK pathway,cAMP/PKA pathway,YAP1/SKN7 pathway,it will provide a powerful reference for future efforts to promote yeast environmental stress tolerance and study yeast tolerance mechanisms.

关键词： yeast Environmental stress Signalling pathway Protein aggregation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of glucose on the decolorization of Reactive Black 5 by yeast isolates

引用

Journal of Environmental Sciences 2008年第1期20卷 105-108页

作者： YANG Qingxiang TAO Lingxia YANG Min ZHANG Hao College of Life Sciences Key Laboratory of Environmental Pollution Control Technology of Henan Province Henan Normal University Xinxiang 453007 China. Biology Department Puyang Vocational and Technical College Puyang 457000 China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

The cometabolic roles of glucose were investigated in decolorization of an azo dye, Reactive Black 5, by yeast isolates, Debaryomyces polymorphus and Candida tropicalis. The results indicated that the dye degradation by the two yeasts was highly associated with the yeast growth process and glucose presence in the medium. Color removal of 200 mg dye/L was increased from 76.4% to 92.7% within 60 h to 100% within 18-24 h with the increase of glucose from 5 to 10 g/L, although the activity of manganese dependent peroxidase （MnP） decreased by 2-8 times in this case. Hydrogen peroxide of 233.3 μg/L was detected in 6 h in D. polymorphus culture. The cometabolic functions of glucose and hydrogen peroxide could be also confirmed by the further color removals of 95.8% or 78,9% in the second cycle of decolorization tests in which 7 g glucose/L or 250 μg H202/L was superadded respectively together with 200 mg dye/L.

关键词： decolorization yeast manganese dependent peroxidase Azo dye, Reactive Black 5

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

yeast protein-protein interaction network model based on biological experimental data

引用

Applied Mathematics and Mechanics(English Edition) 2015年第6期36卷 827-834页

作者： Chunhong WANG Shuiming CAI Zengrong LIU Youwen CHEN Department of Mathematics Shanghai University Faculty of Science Jiangsu University Institute of Systems Biology Shanghai University

Duplication and divergence have been widely recognized as the two domi- nant evolutionary forces in shaping biological networks, e.g., gene regulatory networks and protein-protein interaction （PPI） networks. It has been shown that the network growth models constructed on the principle of duplication and divergence can recapture the topo- logical properties of real PPI networks. However, such network models only consider the evolution processes. How to select the model parameters with the real biological experi- mental data has not been presented. Therefore, based on the real PPI network statistical data, a yeast PPI network model is constructed. The simulation results indicate that the topological characteristics of the constructed network model are well consistent with those of real PPI networks, especially on sparseness, scale-free, small-world, hierarchical modularity, and disassortativity.

关键词： yeast duplication-divergence protein-protein interaction （PPI） network,disassortativity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Plant and yeast NHX Antiporters: Roles in Membrane Trafficking

引用

Journal of Integrative Plant Biology 2012年第2期54卷 66-72页

作者： Quan-Sheng Qiu School of Life Sciences Lanzhou University222 South Tianshui Rd.Lanzhou 730000China

The plant NHX gene family encodes Na＋/H＋ antiporters which are crucial for salt tolerance, potassium homeostasis and cellular pH regulation. Understanding the role of NHX antiporters in membrane trafficking is becoming an increasingly interesting subject of study. Membrane trafficking is a central cellular process during which proteins, lipids and polysaccharides are continuously exchanged among membrane compartments. yeast ScNhxlp, a prevacuole/ vacuolar Na＋/H＋ antiporter, plays an important role in regulating pH to control trafficking out of the endosome. Evidence begins to accumulate that plant NHX antiporters might function in regulating membrane trafficking in plants.

关键词： Na＋（K＋）/H＋ antiporter membrane trafficking yeast Arabidopsis.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Potential protective effects of red yeast rice in endothelial function against atherosclerotic cardiovascular disease

引用

Chinese Journal of Natural Medicines 2019年第1期17卷 50-58页

作者： FENG Shu-Jun TANG Zhi-Han WANG Ying TANG Xin-Ying LI Tao-Hua TANG Wei KUANG Ze-Min Department of Cardiology The First People's Hospital of ChenzhouUniversity of South China Institute of Cardiovascular Disease Key Lab for Arteriosclerology of Hunan ProvinceUniversity of South China Department of Biochemistry and Molecular Biology The Libin Cardiovascular Institute of AlbertaThe University of CalgaryHealth Sciences Center3330 Hospital Drive NW Department of Cardiology The Second Affiliated Hospital of Henan University of Science and Technology Class 2014 Medical CollegeUniversity of South China Department of Hypertension Beijing Anzhen Hospital of Capital Medical University

Atherosclerotic cardiovascular disease(ASCVD) is the deadliest disease in the world, with endothelial injury occurring throughout the course of the disease. Therefore, improvement in endothelial function is of essential importance in the prevention of ASCVD. Red yeast rice(RYR), a healthy traditional Chinese food, has a lipid modulation function and also plays a vital role in the improvement of endothelial reactivity and cardiovascular protection; thus, it is significant in the prevention and treatment of ASCVD. This article reviews the molecular mechanisms of RYR and its related products in the improvement of endothelial function in terms of endothelial reactivity, anti-apoptosis of endothelial progenitor cells, oxidative stress alleviation and anti-inflammation.

关键词： Red yeast rice Xuezhikang Atherosclerotic cardiovascular disease Endothelial cells Molecular mechanism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Analysis of heterogeneity of gene products(interferon)expressed in yeast

引用

Science China Chemistry 1995年第8期38卷 954-962页

作者：王洪海高卜渝陈佩丽董灵李育阳 Institute of Genetics Fudan UniversityShanghai 200433China

FPLC,SDS-PAGE and Western blot techniques are used to analyse the heterogeneity ofinterferon αA(IFN-αA) expressed in yeast.The heterogeneity consists of (i) the presence of IFN polymer,(ii)partial processing of signal leader peptide and (iii) internal degradation.The reasons for heterogeneity ofgene products in expression system of yeast are analysed.The methods of avoiding heterogeneity,such asdepolymerization,adding inhibitors of protease to the culture supernatant,the oligonucleotide-directed deletionmutagenesis and improvements of fermentation,are discussed.

关键词： yeast IFN-αA biotechnique

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：