Ama-Antifoamers asetshenziselwa ukunciphisa ukungezwani kwamanzi kwamanzi, isixazululo nokumiswa, ukuvimba ukwakheka kwe-foam, noma ukwehlisa igwebu elenziwe ngesikhathi sokukhiqizwa kwezimboni. Ama-antifoamers ajwayelekile anje:
I. Amafutha wemvelo (ie uwoyela we-soya, uwoyela wommbila, njll.)
Izinzuzo: Kuyatholakala, okusebenzayo futhi ukusetshenziswa okulula.
Okubi: Kulula ukuwohloka nokwandisa inani le-acid uma kungagcinwa kahle.
II. Utshwala obuphezulu bekhabhoni
Utshwala obuphezulu bekhabhoni buyi-molecule eliqondile eline-hydrophopobicity eqinile ne-hydrophilicity ebuthakathaka, okuyi-antifoamer ephumelelayo ohlelweni lwamanzi. Umphumela we-antifoaming otshwala uhlobene nokuhlaselwa kwawo kanye nokuphazamiseka kusisombululo se-fooming. I-Alcohol of C7 ~ C9 ingama-antifoamers aphumelela kakhulu. Utshwala obuphezulu bekhabhoni be-C12 ~ C22 balungiswa ngama-emulsifiers afanele anosayizi wezinhlayiyana we-4 ~ 9μM, nge-20 ~ 50% ama-emulsion wamanzi, okungukuthi, defoumer ohlelweni lwamanzi. Amanye ama-esters nawo anomphumela ovumayo ekuvutsheni kwe-penicillin, njengePhenylethanol oleate kanye neLauryl Phenylopetate.
III. Ama-poly antifoamers
1. I-GP Antifoamers
Enziwe nge-polymerization ye-polymerization ye-oxide ye-oxide, noma ingxube ye-ethylene oxide ne-propelene oxide, nge-glycerol njenge-ejenti yokuqala. Inobunzima be-hydrophicility kanye ne-solubiliclity ephansi ku-foling medium, ngakho-ke kufanelekile ukuthi isetshenziswe ngoketshezi oluncane lwe-Fermentation. Njengoba amandla ayo alwa nama-antifoaming aphakeme kune-desouming, kufanelekile ukungezwa ku-basal medium ukuze uvimbele inqubo ye-fouming yenqubo yonke ye-Fermentation.
2. I-GPE Antifoamers
I-EthYlene Oxide ingezwe ekugcineni kwesixhumanisi se-polypropylene glycol change ye-GP Antifoemers ukwakha i-polyoxyethylene Oxypropylene Glyrophilic End. I-GPE Antifoomer ine-hydrophilicity enhle, ikhono elinamandla lokulwa nama-antifoaling, kepha futhi line-solubility enkulu ebangela isikhathi esifushane sokulungiswa komsebenzi wokulwa nokuvela. Ngakho-ke, inomphumela omuhle kumhluzi wokuvutshelwa we-viscous.
3. I-GPES ANTIFLOAMERS
I-block copolymer enamaketanga we-hydrophobic kuwo womabili ama-Emps namaketanga we-hydrophilic akhiwa uphawu lokuphela kokuphela kwamaketanga ama-antifoomers we-hydrophobic. Ama-molecule analesi sakhiwo athambekele ekubuthweni esibonakalayo segesi-ketshezi, ngakho-ke anomsebenzi oqinile wendawo kanye nokusebenza kahle okuhle.
IV. I-polyther abicone elungisiwe
Ama-antifoemers we-silicone alungisiwe we-polythed antifone uhlelo olusha lwama-defeamers asebenza kahle. Kuyabiza kakhulu ngezinzuzo zokuhlakazeka okuhle, ikhono elinamandla lokuvinjwa kwe-foam, ukuqina, ukungabi nobungozi nokungenangozi, ukuguquguquka okuphansi kanye nekhono elinamandla lama-antifoamers. Ngokusho kwezindlela ezahlukahlukene zokuxhumeka kwangaphakathi, zingahlukaniswa ngezigaba ezimbili ezilandelayo:
1. I-Copolymer nge-OC-OC-OC- Box elungiselelwe nge-acid njenge-catalyst. Le deforsor kulula uku-hydrolysis futhi inokuqina okungafanele. Uma i-Amine Buffer ikhona, ingagcinwa isikhathi eside. Kepha ngenxa yentengo yayo ephansi, amandla okuthuthukisa asobala kakhulu.
2 Kodwa-ke, ngenxa yokusetshenziswa kweplatinamu ebizayo njenge-catalyst kwinqubo yokukhiqiza, izindleko zokukhiqiza zalolu hlobo lwama-antifoamers ziphezulu, ngakho-ke akusetshenziswa kabanzi.
V. Organic Silicon Antifoamer
... Isahluko esilandelayo.
Isikhathi Sokuposa: Nov-19-2021