益生菌的微膠囊化

Microencapsulationofprobiotics益生菌的微膠囊化2143DefinitionWhatareprobiotics？FunctionHowdotheywork？TechnologyHowtomakemicroencapsulationofprobiotics？FutureWhatisthefuturetrendsofthistechniques？Definition1Whatareprobiotics？WhatAreProbiotics?Probioticsarelivebacteriathataregoodforyourhealth,especiallyyourdigestivesystem（消化系統(tǒng)）.Ourbodyisfullofbacteria,bothgoodandbad.Probioticsareoftencalled“good”or“helpful”bacteriabecausetheyhelpkeepgut（腸道）healthy.WhatAreProbiotics?LBALactobacillus乳酸菌

Bifidobacterium雙歧桿菌Lactobacillusacidophiluss嗜酸乳桿菌Function1Howdotheywork？Howdotheywork？Technology1Howtomakemicroencapsulationofprobiotics？MicroencapsulationofprobioticsMicroencapsulationTheEmbeddingOfProbiotics（益生菌的包埋）TheDryingOfTheSolution（包埋溶液的干燥）

Extrusion/Emulsion（擠壓法）（乳化法）Spraydrying/Coldfreezedrying/Fluidizedbeddrying（噴霧干燥）（冷凍干燥）（流化床干燥）MicroencapsulationofprobioticsMicroencapsulationTheEmbeddingOfProbiotics（益生菌的包埋）

Extrusion/Emulsion（擠壓法）（乳化法）Chitosanascoating（殼聚糖作為涂層）Xanthangum（黃原膠）Proteinlikecasein（酪蛋白）Encapsulationinalginate壁材通常選用海藻酸鈉Alginategelsuponcontactwithdivalentmetals(e.g.calcium,cadmiumorzinc[56]),formingwhathasbeendescribedasan“eggboxstructure”betweenfourGresidues藻酸鹽凝膠與二價金屬接觸(如鈣、鎘或鋅[56])，形成“雞蛋盒結(jié)構(gòu)”MicroencapsulationofprobioticsExtrusion

Thisinvolvesthedroppingofaconcentratedalginatesolution,mostcommonlythroughaneedle（通過針滴入）,intocalciumchloride

solution（氯化鈣溶液）externallygelling（凝膠化）thepolymerintoamicrocapsule.MicroencapsulationofprobioticsEmulsion

Themicrocapsulesareformedbytheformationofawater-in-oilemulsion,usuallystabilisedbysurfactants（表面活性劑）suchasTween80,withthealginatebeingdissolvedinthewaterphase.（外源乳化法：先乳化，再加入交聯(lián)劑凝膠化）

Anorganicacidisaddedtothisemulsion,andasitpenetratesintothediscretewaterphaseitreactswiththecalciumcarbonateformingcalciumionsandcarbonicacid,resultinginthegelationofthealginate.（內(nèi)源乳化法：乳化之前加入交聯(lián)劑）MicroencapsulationofprobioticsMicroencapsulationTheDryingOfTheSolution（包埋溶液的干燥）

Spraydrying/Coldfreezedrying/Fluidizedbeddrying（噴霧干燥）（冷凍干燥）（流化床干燥）Thespraydryingofmicrocapsulesgivebetterprotectiontoprobioticscomparedwithcoldfreezedryingandfluidizedbeddrying.Future1Whatisthefuturetrendsofthistechnology?TheFutureTrendsFoodMedicineFeedAdjusttheintestinalmicroecologicalbalance.維持腸道生態(tài)平衡Adjusttheintestinalfloradisorderscausedbymisuseofantibiotics（抗生素）調(diào)節(jié)動物因濫用抗生素引起的腸道菌群失調(diào)Yogurt,cheese,diaryproducts1.Reducewaterlossrate2.Improvethesurvivalrateofpr