Yini ebangela ukujiya kokomisa okomisa nge-spray... Indlela yokulawula

Yini ebangela ukujiya kokomisa okomisa nge-spray... Indlela yokulawula

 Isifinyezo:

Ukudla okomiswe ngesifutho kuhlukaniswe ngezigaba ezimbili: okunganamatheli nokuqinile. Izithako ezinganamatheli kulula ukuzifutha zomile, ukwakheka okulula kokomisa kanye nokugeleza kokugcina kwempuphu ngokukhululeka. Izibonelo zezinto ezinganamatheli zifaka phakathi i-egg powder, i-milk powder, izixazululo kanye nezinye i-maltodextrin, izinsini kanye namaprotheni. Endabeni yokudla okunamathelayo, kunenkinga yokomisa ngaphansi kwezimo ezijwayelekile zokomisa ngesifutho. Ukudla okunamathelayo kuvame ukunamathela odongeni lomshini wokomisa, noma kube ukudla okunamathelayo okungenamsebenzi emakamelweni okomisa nasezinhlelweni zokuthutha, ngezinkinga zokusebenza eziphansi kanye nemikhiqizo ekhiqizwayo. Ukudla okushukela kanye ne-asidi kuyizibonelo ezivamile.

I-Viscos iyinto eyenzeka enqubweni yokomisa ukudla okucebile nge-glycolic acid. I-Powder viscosity uhlobo lokusebenza kokunamathelana. Ingachaza i-particle-particle viscosity (ukuhlangana) kanye ne-particle-wall viscosity (ukunamathela). Isilinganiso samandla okubopha ngezinhlayiya ze-powder sibangelwa izici zayo zangaphakathi ezibizwa ngokuthi i-cohesion, zakha ubuningi embhedeni we-powder. Ngakho-ke, amandla adinga ukudabula i-powder agglomerate kufanele abe makhulu kunokuhlangana. I-Adhesion iwukusebenza kwe-interface, futhi izinhlayiya ze-powder zinamathela emkhubeni wemishini yokomisa ngokufutha. Ukuhlangana nokunamathela kuyimingcele ebalulekile yokuklama izimo zokomisa nokomisa. Ukwakheka kobuso bezinhlayiya ze-powder kubhekene kakhulu ne-viscosity. Ukuhlangana nokunamathela kwezinto zobuso bezinhlayiya ze-powder kuhlukile. Ngoba ukomisa kudinga inani elikhulu le-solute ukuze lidluliselwe ebusweni bezinhlayiya, liba ngobuningi. Izici ezimbili ze-viscosity (ukuhlangana nokunamathela) zingaba khona ndawonye ezintweni zokudla ezigcwele ushukela ezifutha ngokufutha. I-viscosity phakathi kwezinhlayiya ukwakheka kwamabhuloho oketshezi aqinile, amabhuloho oketshezi ahambayo, amaketanga omshini phakathi kwama-molecule, kanye nokudonsa kwamandla kagesi kanye namabhuloho aqinile. Isizathu esiyinhloko sokunamathela kwezinhlayiya zempuphu yodonga ekamelweni lokomisa ukulahleka kwezinto ezitholakala kushukela owomisa ngokufutha kanye nokudla okune-asidi eningi. Uma impuphu igcinwa isikhathi eside, izokoma odongeni.

Kuholela ekuqineni

SUbuchwepheshe bokumisa ukudla okucebile ngempuphu yokomisa ukudla kabusha. Ushukela onesisindo esiphansi sama-molecule uyinselele kakhulu (i-glucose, i-fructose) kanye nama-organic acid (i-citric acid, i-malic acid, i-tartaric acid). Izinto ezincane zama-molecule ezifana nokumuncwa kwamanzi amaningi, i-thermoplasticity kanye ne-vitrification transition temperature ephansi (i-Tg) zinegalelo ezinkingeni ze-viscosity. Izinga lokushisa lokomisa ngokufutha liphakeme kune-Tg20°C. Iningi lalezi zingxenye zakha izinhlayiya ezithambile ebusweni obuqinile, okubangela ukuthamba kwempuphu, futhi ekugcineni kwakha isakhiwo sokunamathela esikhundleni sempuphu. Ukuhamba okuphezulu kwama-molecule kwale molekyuli kungenxa yokushisa kwayo okuphansi kokuguquguquka kwe-vitrification (Tg), okuholela ezinkingeni ze-vitrification kuma-spray dryers avame ukuthandwa ekushiseni. Izici eziyinhloko zokushisa kokuguqulwa kwengilazi kanye nokushisa kokuguqulwa kwesigaba esingaguquki. Isenzakalo sokuguquka kwengilazi senzeke kushukela oqinile, ongaguquki, owaguqulwa waba yisigaba soketshezi lwerabha oluthambile. Amandla ongaphezulu kanye nengilazi eqinile kunamandla ongaphezulu futhi akunamatheli ezindaweni eziqinile ezinamandla aphansi. Ngenxa yesimo sengilazi kuya ku-raber ferry (noma uketshezi), ubuso bezinto bungaphakanyiswa, futhi ukusebenzisana phakathi kwe-molecule kanye nobuso obuqinile kungaqala. Emisebenzini yokomisa ukudla, umkhiqizo usesimweni soketshezi noma sokunamathela, futhi ukudla okuketshezi/okunamathelayo okususa i-ejenti yepulasitiki (amanzi) kuba yingilazi. Uma izinto zokudla ezingashintshi kusuka ekushiseni okuphezulu kokomisa kunokushisa kwengilazi, umkhiqizo uzogcina ukuthamba okuphezulu kwamandla. Uma lolu hlobo lokudla luthintwa ubuso obuqinile obunamandla aphezulu, luzonamathela noma lunamathele kulo.

Ukulawula ukujiya 

Kunezindlela eziningi zesayensi yezinto zokwakha kanye nezindlela ezisekelwe enqubweni yokunciphisa i-viscosity. Izindlela eziyisisekelo zesayensi yezinto zokwakha zifaka izinto ezinezithasiselo zokomisa uketshezi ezinesisindo esikhulu sama-molecule ukuze kwandiswe izinga lokushisa ngaphandle kokuguqulwa kwe-vitrification, kanti izindlela ezisekelwe enqubweni zifaka izindonga kanye nephansi legumbi lomshini.