Fafaza ukomisa okomisa ekuqaleni okuholela ekunamatheleni… Ungalawula kanjani

Fafaza ukomisa okomisa ekuqaleni okuholela ekunamatheleni… Ungalawula kanjani

Ukudla okomisiwe ngesifutho kuhlukaniswe izigaba ezimbili: okunganamatheli nokunamathelayo. Izithako ezinganamatheli kulula ukuzifutha zomile ngemiklamo elula yokomisa kanye nezimpushana zokugcina ezigeleza mahhala. Izibonelo zezinto ezingezona i-viscous zihlanganisa amaqanda ayimpuphu, ubisi oluyimpushana, i-maltodextrin njengesixazululo, izinsini, namaprotheni. Endabeni yokudla okunamathelayo, kunezinkinga zokomisa ngaphansi kwezimo ezivamile zokumisa isifutho. Ukudla okunamathelayo kuvame ukunamathela ezindongeni zokomisa noma kube ukudla okunamathelayo okungenamsebenzi emakamelweni okomisa nezinhlelo zokuhamba ezinezinkinga zokusebenza kanye nesivuno esincane semikhiqizo. Ukudla okunoshukela nokudla okune-asidi kuyizibonelo ezijwayelekile.

Ukunamathela kuyinto eyenzeka ngesikhathi somiswa kwezinto zokudla ezifuthwa njalo ezinoshukela kanye ne-asidi. I-Powder tack iyimpahla yokunamathela ehlangene. Ingachazwa ngokuya nge-particle-particle adhesion (ukubumbana) kanye ne-particle-wall adhesion (adhesion). Isilinganiso samandla okubopha ngawo izinhlayiya zempushana kungenxa yezakhiwo zayo zangaphakathi ezaziwa ngokuthi ukuhlangana, okwenza izigaxa embhedeni wempuphu. Ngakho-ke amandla adingekayo ukuze abhodloze ama-powder agglomerate kufanele abe mkhulu kunamandla ahlangene. I-Adhesion iyimpahla ehlangene, ukuthambekela kwezinhlayiya zempushana ukunamathela ezindongeni zemishini yokumisa isifutho. Ukubumbana nokunamathela kuyimingcele ebalulekile ekwakhiweni kwezimo zokumisa nokomisa. Ukwakheka kwezinhlayiya ze-powder ebusweni ikakhulukazi kubangela inkinga yokunamathela. Ukuthambekela kokubumbana nokunamathela kwezinto ezingaphezulu kwezinhlayiyana ze-powder kuhlukile. Ngoba ukomisa kudinga inani elikhulu lokudluliselwa kwe-solute endaweni yezinhlayiyana, kuyinqwaba. Izici ezimbili ze-viscous (ukubumbana nokunamathela) zingahlala ndawonye ezintweni zokudla ezinoshukela omiswe ngesifutho. Ukunamathela phakathi kwezinhlayiya ukubumbana ukwakhiwa kwamabhuloho aketshezi angaguquki, amabhuloho anguketshezi anyakazayo, ukuhlangana komshini phakathi kwama-molecule namandla adonsela phansi e-electrostatic namabhuloho aqinile. Ngodonga lwegumbi okomisa izinhlayiya zempushana zinamathela ikakhulukazi ngenxa yokulahleka kwempahla ekumisweni kokufuthwa koshukela nokudla okune-asidi. Izinto ze-Powdery lapho zigcinwe isikhathi eside ekulahlekelweni komiswe odongeni.

Izinkinga Zokunamathela:

Futha Ushukela Nokudla Okunothile Nge-Acid Ukomisa Impushana Ngokusebenzisa ubuchwepheshe bokumisa isifutho, ushukela ophansi wamangqamuzana (ushukela, i-fructose) nama-organic acid (i-citric, i-malic, i-tartaric) kuyinselele enkulu. Ukumuncwa kwamanzi aphezulu, i-thermoplasticity, kanye nezinga lokushisa eliphansi lengilazi lokushintsha (Tg) la ma-molecule amancane anesandla enkingeni yokunamathela. Fafaza amazinga okushisa okomisa ngaphezu kuka-Tg 20°C, lezi zithako ngokuvamile zakha izinhlayiya ezithambile ezindaweni ezinamathelayo, okubangela ukuba impushana inamathele futhi igcine inesakhiwo esifana nokunamathisela esikhundleni sempushana. Ukuhamba okuphezulu kwamangqamuzana ama-molecule anjalo kungenxa yezinga lokushisa eliphansi lokushintsha kwezingilazi (Tg), okuholela ezinkingeni zokunamathela emazingeni okushisa avame ukuthandwa kuma-spray dryers. Izinga lokushisa lokushintsha kwengilazi liyisici esiyinhloko sezinga lokushisa lokushintsha kwesigaba se-amorphous. Umcimbi wokushintsha kwengilazi kwenzeka lapho ushukela oqinile oqinile, i-amorphous, ushintsha ube yirabha ethambile, isigaba esiwuketshezi. Amandla angaphezulu, ingilazi eqinile inamandla angaphezulu aphansi futhi ayinamatheli endaweni eqinile engenamandla amancane. Njengomphumela wenguquko ukusuka kusimo sengilazi ukuya esimweni senjoloba (noma uketshezi), indawo ebonakalayo ingaphakanyiswa, futhi ukusebenzisana kwe-molecular and solid surface kungaqala. Emsebenzini wokomisa ukudla, umkhiqizo usesimeni esiwuketshezi noma esiboshiwe, futhi ngenxa yokususwa kwe-plasticizer (amanzi) umkhiqizo wokudla owuketshezi/oboshiwe uba yisimo sengilazi. Impahla yokudla izohlala inamandla amakhulu uma umkhiqizo wokudla ungashintshile ekushiseni okuphakeme ukomisa kunokushintsha kwezinga lokushisa le-vitrification. Uma lo mkhiqizo wokudla uthintana nendawo eqinile enamandla amakhulu uzonamathela noma ubambelele kuwo.

Ukulawula i-Viscosity:

Kunenqwaba yesayensi yezinto zokwakha kanye nezindlela ezisuselwa kunqubo zokunciphisa i-viscosity. Izindlela ezisekelwe kusayensi yezinto ezibonakalayo zifaka izakhi zesisindo samangqamuzana aphezulu izithasiselo zokomisa uketshezi ukuze zikhuphule izinga lokushisa elingaphezu koshintsho lwengilazi, nezindlela ezisekelwe enqubweni zihlanganisa izindonga, ezansi, njll. zamakamelo oomshini.