Emulsification

Cov tshuaj tsw qab emulsified tuaj yeem muab cov dej haus uas muaj ntxhiab thiab tsis haum. Lub siab HLB tus nqi ntawm polyglycerol fatty acid ester thiab saponin tuaj yeem siv los ua emulsion tsw. Feem ntau haus nrog emulsified tsw yog acidic, thiab polyglycerol fatty acid ester thiab saponin muaj cov kua qaub zoo heev, yog li lawv tsim tau zoo heev. Lecithin nrog cov hydrophilicity zoo thiab cov kua qaub tiv taus kuj tseem siv tau.

Cov dej cawv muaj cawv, haus kas fes, ua kom cov kua mis ua kom siv tau glycerate, sorbitol anhydride fatty acid ester, propylene glycol fatty acid ester, thiab lwm yam

Kev sib xyaw ntawm HLB tus nqi lipophilic emulsifier thiab lwm yam hydrophilic emulsifiers tuaj yeem txhim kho emulsion ruaj ntseg ntawm dej haus thiab kua mis ua kua.

Ua kom ntub dej

Qhov ntxiv ntawm emulsifier hauv cov dej qab zib chocolate tuaj yeem txhim kho qhov kev faib tawm, thiab ntxiv ntawm emulsifier hauv cocoa cov dej haus cawv kuj tseem tuaj yeem txhim kho cov dispersibility. Qhov ntxiv ntawm emulsifier nyob rau hauv cov dej haus acidic tuaj yeem yooj yim tawg, thiab qhov sib ntxiv ntawm emulsifier hauv cov hmoov tov tuaj yeem txhim kho nws qhov kev ntub thiab dispersibility hauv kev daws.

Ua npuas ncauj nyhuv

Feem ntau, lub zog foaming ntawm emulsifiers hauv dej yog qhov loj tshaj plaws nyob ib puag ncig ntawm cov roj carbon ntau ntawm cov roj fatty acids 12, thiab lub zog foaming ntawm saponins kuj tseem muaj zog heev. Hauv Tebchaws Europe thiab Amelikas, saponins tau ntxiv los ua tus neeg sawv cev ntawm lub tshuab ua npuas dej ntawm cov teb chaws Europe thiab Asmeskas, kom muaj coob tus micro cua npuas, saj zoo, thiab cov khoom lag luam zoo dua.

Kev tshem tawm ntau heev

Lub zog ua kom tsis muaj zog emulsifier yog cov ua npuas roj qis roj emulsifier synthesized los ntawm cov ua haujlwm siab surfactant. Nws tuaj yeem tshem tawm cov roj av hnyav ntawm kev ua cov cuab yeej, cov ntaub pua rooj thiab cov phuam nrog kev siv cov hmoov ntxuav loj. Nws tuaj yeem tiv thaiv kom tsis muaj av thiab nag lossis daus ntawm phuam, ntaub pua chaw thiab lwm cov ntaub, thiab txhim kho qhov tsis zoo ntawm kev ntxhua khaub ncaws thiab ntxuav cov ntaub.

Emulsifiers feem ntau yog kev sib xyaw ntawm surfactants, ntxhia roj thiab cov rog, tab sis lawv kuj tuaj yeem ua dej hauv dej. Nws tuaj yeem tshem cov plua plav ntawm cov ntaub los ntawm kev zom cov roj thiab roj tawm mus rau hauv cov roj zoo heev. Thaum emulsified hauv dej, roj thiab roj tuaj yeem muab tshem tawm los ntawm kev zom taus.

Emulsifiers pab tshem tawm cov roj ntxhia lossis roj ntawm cov khaub ncaws thaum ntxuav. Yog tias sib xyaw nrog ib qho txiaj ntsig ntawm alkali thiab xab npum, nws tuaj yeem siv los tshem cov roj av. Kev sib xyaw ntawm alkali thiab roj hlub surfactant tuaj yeem decompose roj thiab roj mus rau hauv cov nplai zoo heev. Lub emulsifier ces nyob ib puag ncig nws thiab tsim ib txheej ntawm xub ntiag ntawm nws qhov chaw. Nyob rau hauv txoj kev no, tom qab emulsifying thiab yaj mus rau hauv dej, cov roj thiab roj yuav raug muab tshem tawm los ntawm kev rov ua dua.