益生菌微胶囊化

2143DefinitionWhatareprobiotics？FunctionHowdotheywork？TechnologyHowtomakemicroencapsulationofprobiotics？FutureWhatisthefuturetrendsofthistechniques？第1页/共19页第一页，共20页。Definition1Whatareprobiotics？第2页/共19页第二页，共20页。WhatAreProbiotics?Probioticsarelivebacteriathataregoodforyourhealth,especiallyyourdigestivesystem（消化系统）.Ourbodyisfullofbacteria,bothgoodandbad.Probioticsareoftencalled“good”or“helpful”bacteriabecausetheyhelpkeepgut（肠道）healthy.第3页/共19页第三页，共20页。WhatAreProbiotics?LBALactobacillus乳酸菌

Bifidobacterium双歧杆菌Lactobacillusacidophiluss嗜酸乳杆菌第4页/共19页第四页，共20页。Function1Howdotheywork？第5页/共19页第五页，共20页。Howdotheywork？第6页/共19页第六页，共20页。Technology1Howtomakemicroencapsulationofprobiotics？第7页/共19页第七页，共20页。MicroencapsulationofprobioticsMicroencapsulationTheEmbeddingOfProbiotics（益生菌的包埋）TheDryingOfTheSolution（包埋溶液的干燥）

Extrusion/Emulsion（挤压法）（乳化法）Spraydrying/Coldfreezedrying/Fluidizedbeddrying（喷雾干燥）（冷冻干燥）（流化床干燥）第8页/共19页第八页，共20页。MicroencapsulationofprobioticsMicroencapsulationTheEmbeddingOfProbiotics（益生菌的包埋）

Extrusion/Emulsion（挤压法）（乳化法）Chitosanascoating（壳聚糖作为涂层）Xanthangum（黄原胶）Proteinlikecasein（酪蛋白）Encapsulationinalginate壁材通常选用海藻酸钠Alginategelsuponcontactwithdivalentmetals(e.g.calcium,cadmiumorzinc[56]),formingwhathasbeendescribedasan“eggboxstructure”betweenfourGresidues藻酸盐凝胶与二价金属接触(如钙、镉或锌[56])，形成“鸡蛋盒结构”第9页/共19页第九页，共20页。MicroencapsulationofprobioticsExtrusion

Thisinvolvesthedroppingofaconcentratedalginatesolution,mostcommonlythroughaneedle（通过针滴入）,intocalciumchloride

solution（氯化钙溶液）externallygelling（凝胶化）thepolymerintoamicrocapsule.第10页/共19页第十页，共20页。MicroencapsulationofprobioticsEmulsion

Themicrocapsulesareformedbytheformationofawater-in-oilemulsion,usuallystabilisedbysurfactants（表面活性剂）suchasTween80,withthealginatebeingdissolvedinthewaterphase.（外源乳化法：先乳化，再加入交联剂凝胶化）

Anorganicacidisaddedtothisemulsion,andasitpenetratesintothediscretewaterphaseitreactswiththecalciumcarbonateformingcalciumionsandcarbonicacid,resultinginthegelationofthealginate.（内源乳化法：乳化之前加入交联剂）第11页/共19页第十一页，共20页。MicroencapsulationofprobioticsMicroencapsulationTheDryingOfTheSolution（包埋溶液的干燥）

Spraydrying/Coldfreezedrying/Fluidizedbeddrying（喷雾干燥）（冷冻干燥）（流化床干燥）Thespraydryingofmicrocapsulesgivebetterprotectiontoprobioticscomparedwithcoldfreezedryingandfluidizedbeddrying.第12页/共19页第十二页，共20页。Future1Whatisthefuturetrendsofthistechnology?第13页/共19页第十三页，共20页。TheFutureTrendsFoodMedicineFeedAdjusttheintestinalmicroecologicalbalance.维持肠道生态平衡Adjusttheintestinalfloradisorderscausedbymisuseofantibiotics（抗生素）调节动物因滥用抗生素引起的肠道菌群失调Yogurt,cheese,diaryproducts1.Reducewaterlossrate2.Improvethesurvivalrateofprobioticsindiary.降低酸奶失水率，提高活菌数第14页/共19页第十四页，共20页。TheSourceOfLiterature第15页/共19页第十五页，共20页。TheSourceOfLiterature第16页/共19页第十六页，共20页。TheSourceOfLiterature第17页/共19页第十七页，共20页。ThanksMicroencapsulationofprobiotics第18页/共19页第十八页，共20页。感谢您的观看！第19页/共