TianJia Mai Haɗin Abinci PROLINE
Proline (a takaice a matsayin Pro ko P), tare da dabarar sinadarai C5H9NO2 da nauyin kwayoyin halitta na 115.13, amino acid ne na cyclic.α- Amino acid, tsaka tsaki, tare da isoelectric batu na 6.30, suna da mafi girma solubility a cikin ruwa fiye da kowane amino acid, kuma zai iya narke a kusa da 162g a cikin 100g na ruwa a 25 ℃.Sauƙi don deliquescence amma ba sauƙin yin crystallize ba, tare da ɗanɗano mai daɗi.Co dumama tare da ninhydrin bayani yana haifar da mahadi rawaya.Da zarar shiga cikin sarkar peptide, hydroxylation na iya faruwa, wanda ya haifar da samuwar 4-hydroxyproline, wanda shine muhimmin sashi na collagen dabba.Hydroxyproline kuma yana cikin sunadaran shuka iri-iri, musamman masu alaƙa da samuwar bangon tantanin halitta.Tsire-tsire sukan fuskanci gagarumin tarin proline a ƙarƙashin yanayi mara kyau kamar fari, matsanancin zafin jiki, ƙarancin zafin jiki, da salinity.An yi amfani da shi sosai a cikin asibiti, ilimin halittu, masana'antu, da sauran fannoni.
Akwai nau'ikan proline guda uku:DL proline, L-proline, da D-proline.Abin da aka fi sani da proline shine L-proline, amino acid da ke faruwa a zahiri.A cikin zafin jiki, wannan samfurin kristal ne.Da sauri bazu lokacin zafi zuwa 215-220 ℃.Mai narkewa a cikin ruwan zafi da ethanol.Dan kadan zaki da hygroscopic.Racemization a cikin maganin alkaline.[α] D25-86.5 ° (ruwa), -60.4 ° (5N hydrochloric acid).Rarraba a daban-daban sunadaran.Amino acid mai matsakaicin abun ciki a cikin plankton marine;Har ila yau yana samuwa a cikin ruwan teku, kwayoyin halitta, da marine sediments.
Proline ba shi da mahimmancin amino acid a jikin mutum.
Aiki da manufa
Aikace-aikace a cikin masana'antar harhada magunguna
Amino acid kwayoyi.Daya daga cikin albarkatun kasa na fili amino acid jiko.An yi amfani da shi don ƙarin furotin bayan rashin abinci mai gina jiki, ƙarancin furotin, cututtuka masu tsanani na ciki, ƙonewa, da hanyoyin tiyata.Babu tabbataccen sakamako masu guba.
Intrabiological illa
A cikin rayayyun kwayoyin halitta, proline ba kawai abin da ya dace da osmoregulation ba ne, amma kuma yana aiki a matsayin abu mai kariya ga membranes da enzymes, da kuma mai ban sha'awa mai ban sha'awa, don haka kare tsire-tsire a ƙarƙashin damuwa osmotic.Don tara wani muhimmin abu mai mahimmanci na osmoregulation a cikin vacuoles a cikin rayayyun halittu masu rai na potassium ion, proline kuma na iya taka rawar tsari a cikin ma'aunin osmotic cytoplasmic.
Aikace-aikacen masana'antu
A cikin masana'antar haɗakarwa, proline na iya shiga cikin haifar da halayen asymmetric kuma suyi aiki azaman mai haɓaka haɓakar hydrogenation, polymerization, da halayen tsaka-tsakin ruwa.Lokacin da aka yi amfani da shi azaman mai haɓakawa don irin waɗannan halayen, yana da aiki mai ƙarfi da ƙaƙƙarfan stereospecificity.
Aikace-aikace a wasu fannoni
1. Proline da abubuwan da suka samo asali ana amfani da su azaman masu haɓakawa a cikin halayen kwayoyin halitta, tare da raguwar CBS da catalytic aldol condensation reaction na proline kasancewa fitattun misalai.
2. A lokacin shayarwa, sunadaran suna da wadata a cikin proline da ke daure zuwa polyphenols, wanda zai iya haifar da hazo (turbidity).
3. Raw kayan don kira na gallstone ester inhibitors.
4. Abubuwan dandano, waɗanda ke amsa sukari ta hanyar dumama don samar da ƙungiyoyin amino hydrogen, na iya samar da abubuwa masu ƙamshi na musamman.
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