益生菌的微胶囊化

MORETHANPPTDesignedBy@x-StudioMicroencapsulationofprobiotics益生菌的微胶囊化22143DefinitionWhatareprobiotics？FunctionHowdotheywork？TechnologyHowtomakemicroencapsulationofprobiotics？FutureWhatisthefuturetrendsofthistechniques？Definition1Whatareprobiotics？4WhatAreProbiotics?Probioticsarelivebacteriathataregoodforyourhealth,especiallyyourdigestivesystem（消化系统）.Ourbodyisfullofbacteria,bothgoodandbad.Probioticsareoftencalled“good”or“helpful”bacteriabecausetheyhelpkeepgut（肠道）healthy.5WhatAreProbiotics?LBALactobacillus乳酸菌Bifidobacterium双歧杆菌Lactobacillusacidophiluss嗜酸乳杆菌Function1Howdotheywork？7Howdotheywork？Technology1Howtomakemicroencapsulationofprobiotics？9MicroencapsulationofprobioticsMicroencapsulationTheEmbeddingOfProbiotics（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）10MicroencapsulationofprobioticsMicroencapsulationTheEmbeddingOfProbiotics（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”11MicroencapsulationofprobioticsExtrusionThisinvolvesthedroppingofaconcentratedalginatesolution,mostcommonlythroughaneedle（通过针滴入）,intocalciumchloridesolution（氯化钙溶液）externallygelling（凝胶化）thepolymerintoamicrocapsule.12MicroencapsulationofprobioticsEmulsionThemicrocapsulesareformedbytheformationofawater-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）13MicroencapsulationofprobioticsMicroencapsulationTheDryingOfTheSolution（包埋溶液的干燥）Spraydrying/Coldfreezedrying/Fluidizedbeddrying（喷雾干燥）（冷冻干燥）（流化床干燥）Thespraydryingofmicrocapsulesgivebetterprotectiontoprobioticscomparedwithcoldfreezedryingandfluidizedbeddrying.Future1Whatisthefuturetrendsofthistechnology?15TheFutureTrendsFoodMedicineFeedAdjusttheintestinalmicroecologicalbalance.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16TheSourceOfLiterature17TheSourceOfLiterature18TheSourceOfLiteratureMORETHANPPTDesignedBy@x-StudioThanksMicroencapsulationofprobiotics