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目录1益生菌的概念................................................................................................................................32益生菌的种类................................................................................................................................33益生菌的作用................................................................................................................................43.1预防或改善腹泻................................................................................................................43.2缓解不耐乳糖症状............................................................................................................4乳杆菌可帮助人体分解乳糖，缓解腹泻、胀气等不适症状，可与牛奶同食。...............43.3预防阴道感染....................................................................................................................43.4增强人体免疫力................................................................................................................43.5促进肠道消化系统健康....................................................................................................43.6降低血清胆固醇................................................................................................................53.7预防癌症和抑制肿瘤生长。............................................................................................54益生菌的应用................................................................................................................................54.1双歧杆菌的应用........................................................................................................................54.2乳酸菌的应用....................................................................................................................64.3米曲霉的应用....................................................................................................................74.4益生菌临床应用的新发展................................................................................................74.4.1炎性肠病(IBD).......................................................................................................74.4.2感染性腹泻.............................................................................................................74.4.3其他.........................................................................................................................84.4.4酸奶等发酵乳制品.................................................................................................95灭活益生菌的研究进展................................................................................................................95.1灭活益生菌的研究概况....................................................................................................95.2灭活益生菌的优势............................................................................................................95.3灭活益生菌的功效..........................................................................................................106益生菌存在的问题......................................................................................................................101益生菌及其作用研究进展摘要：益生菌有防治腹泻、增强人体免疫力、缓解过敏作用、降低血清胆固醇等作用。益生菌的种类有很多，发酵乳杆菌、纤维二糖乳杆菌、弯曲乳杆菌、载耳布吕克氏乳杆菌、乳酸乳杆菌、双歧杆菌、长双歧杆菌等都是益生菌，它们居住在人体的肠道内，是单细胞生物的一种。现代社会中，随着生活水平的提高，现代人更重视营养。但是高脂肪、高蛋白摄入过多，食物纤维摄入过少，很容易导致体内菌群失衡，从而导致亚健康的状态甚至是疾病。有害的饮食习惯使肠道内的有害细菌大量繁殖，而在人体的肠道内不但居住着益生菌，还居住着大肠杆菌等有害菌和绿脓杆菌等条件致病菌，它们三者在人体的肠道内维持着一定的平衡，保持着人体的健康。若是当肠道内的益生菌数量减少到一定成度时，肠道内的有害细菌就会兴风作浪，人体的免疫力就会下降，而这时，条件致病菌就会趁机破坏人体健康，使人体更加虚弱，严重的，甚至会引起癌症，威胁人的生命。所以，我们利用益生菌改变人体健康状况是刻不容缓的事。在许多发酵食品中，也可以发现益生菌的身影，现在，人们已经开始利用发酵技术生产出各种富含益生菌的食品。关键词：益生菌、发酵食品、健康ProbioticsandfunctionarereviewedAbstract:probioticbacteriahavediarrhoea,enhanceimmunityandrelief,reduceserumcholesterol,allergyeffectetc.Therearemanykindsofprobiotic2bacteria,fermentedmilk,cellobioselactobacilluscasei,bending,earclothLvKeShilactobacilluscasei,lacticacid,colonbacillus,colonbacillusisprobiotic,theyliveinthehumangut,isakindofsingle-celledorganisms.Inmodernsociety,withtheimprovementoflivingstandard,peoplepaymoreattentiontonutrition.Buthighinfat,proteinintake,foodfiberintaketoolittle,easycausebodybacteriumimbalance,causingthehealthconditionisevendisease.Harmfulhabitsthattheintestinalbacteriamultiply,andinthehumangutnotonlyliveprobiotics,stilllivedsuchharmfulbacteriumcoliandpseudomonasaeruginosaetc,theyallpathogensinthehumangutmaintainsacertainbalance,keepthebodyhealthy.Ifwhentheintestinalprobioticsquantitytoreduceinto,gutbacteriawouldbetrue,thehumanbody'simmunitywilldrop,then,willdestroypathogensseizingthehealth,makehumanbodyfrail,serious,andevencausecancer,thethreatofhumanlife.Therefore,weuseprobioticschangehumanhealthistheurgentmatter.Inmanyfermentedfood,alsocanfindprobiotics,now,peoplehavebeguntousefermentationtechnologyinproducingallkindsoffoodsandsupplements.Keywords:probiotics,fermentedfoodandhealth现代社会中，随着生活水平的提高，餐桌上的食品越来越丰富，可是随着人们的生活节奏越来越快，现代化的生活使人们来不及消化这些食品就必须投入到工作中来，而很多人更是饥一顿饱一顿，又或者暴饮暴食却得不到很好的运动。长期的不良饮食习惯之后人们就要面临随之而来的便是各种疾病的，而各种消化道的疾病又占了很大一部分。现在，世界上有难以计数的消化系统疾病患者，这些疾病给人们的生活带来了很多不便和痛苦，若不及时治疗更会恶化成癌症等恶3性疾病。在人的胃肠道中，生活着三种细菌，它们是有益菌（益生菌）、有害菌、和条件致病菌。人体的很多肠道疾病就是因为这三