I-methylcellulose iyisengezo sokudla esivamile. Yenziwe nge-cellulose yemvelo ngokuguqulwa kwamakhemikhali. Inokuqina okuhle, i-gelling kanye nezindawo zokujiya futhi isetshenziswa kakhulu embonini yokudla. Njengento elungiswe ngokwenziwa, ukuphepha kwayo ekudleni sekuyisikhathi eside kukhathaza.
1. Izakhiwo nemisebenzi ye-methylcellulose
Isakhiwo samangqamuzana e-methylcellulose sisekelwe ku-βIyunithi ye-glucose engu-1,4, eyakhiwe ngokushintshanisa amanye amaqembu e-hydroxyl ngamaqembu e-methoxy. Iyancibilika emanzini abandayo futhi ingakha ijeli ebuyiseleka emuva ngaphansi kwezimo ezithile. Inokuqina okuhle, i-emulsification, ukumiswa, ukuzinza kanye nezindawo zokugcina amanzi. Le misebenzi iyenza isetshenziswe kabanzi esinkwa, amakhekhe, iziphuzo, imikhiqizo yobisi, ukudla okuqandisiwe neminye imikhakha. Isibonelo, ingathuthukisa ukuthungwa kwenhlama futhi ibambezele ukuguga; ekudleni okuqandisiwe, kungathuthukisa ukumelana neqhwa.
Naphezu kwemisebenzi yayo ehlukahlukene, i-methylcellulose ngokwayo ayimuncwa noma igaywe emzimbeni womuntu. Ngemva kokungenisa, ikhishwa ngokuyinhloko ngomgudu wokugaya ukudla ngendlela engaboshiwe, okwenza umthelela wayo oqondile emzimbeni womuntu ubonakale ulinganiselwe. Kodwa-ke, lesi sici siphinde savusa ukukhathazeka kwabantu ukuthi ukuthatha kwayo isikhathi eside kungase kuthinte impilo yamathumbu.
2. Ukuhlola kanye nezifundo zokuphepha ezinobuthi
Ucwaningo oluningi lwe-toxicological lubonise ukuthi i-methylcellulose ine-biocompatibility enhle kanye nobuthi obuphansi. Imiphumela yokuhlolwa kobuthi obunzima ibonise ukuthi i-LD50 yayo (isilinganiso esibulalayo esimaphakathi) yayiphezulu kakhulu kunenani elisetshenziswa ezithasiselweni zokudla ezivamile, okubonisa ukuphepha okuphezulu. Ekuhlolweni kobuthi besikhathi eside, amagundane, amagundane nezinye izilwane azizange zibonise ukusabela okubi kakhulu ngaphansi kokuphakelwa isikhathi eside ngemithamo ephezulu, okuhlanganisa izingozi ezifana ne-carcinogenicity, i-teratogenicity kanye nobuthi bokuzala.
Ngaphezu kwalokho, umphumela we-methylcellulose emathunjini omuntu nawo ufundwe kabanzi. Ngenxa yokuthi ayigayiwe futhi imuncwe, i-methylcellulose ingakhuphula umthamo wendle, ikhuthaze ukubola kwamathumbu, futhi inezinzuzo ezithile ekudambiseni ukuqunjelwa. Ngesikhathi esifanayo, ayivundisiwe yizitshalo zamathumbu, ukunciphisa ingozi ye-flatulence noma ubuhlungu besisu.
3. Imithethonqubo kanye nezinkambiso
Ukusetshenziswa kwe-methylcellulose njengesengezo sokudla kulawulwa ngokuqinile emhlabeni wonke. Ngokusho kokuhlolwa kweKomidi Lochwepheshe Elihlangene Lezithako Zokudla (JECFA) ngaphansi kweNhlangano Yezokudla Nezolimo yeNhlangano Yezizwe Ezihlangene (i-FAO) kanye neNhlangano Yezempilo Yomhlaba (i-WHO), ukuthathwa okuvunyelwe nsuku zonke (ADI) kwe-methylcellulose "akucacisiwe. ", okubonisa ukuthi kuphephile ukusetshenziswa ngaphakathi komthamo onconyiwe.
E-United States, i-methylcellulose isohlwini njengento evame ukubonwa njengento ephephile (GRAS) yi-US Food and Drug Administration (FDA). E-European Union, ihlukaniswa njengesengezo sokudla i-E461, futhi ukusetshenziswa kwayo okuphezulu ekudleni okuhlukile kucaciswe ngokucacile. E-China, ukusetshenziswa kwe-methylcellulose kulawulwa yi-"National Food Safety Standard Standard Additive Usage Standard" (GB 2760), edinga ukulawulwa okuqinile komthamo ngokuya ngohlobo lokudla.
4. Ukucatshangelwa kokuphepha ezinhlelweni ezingokoqobo
Nakuba ukuphepha kukonke kwe-methylcellulose kuphezulu uma kuqhathaniswa, ukusetshenziswa kwayo ekudleni kusadinga ukunaka amaphuzu alandelayo:
Umthamo: Ukwengeza ngokweqile kungase kushintshe ukuthungwa kokudla futhi kuthinte izinga lezinzwa; ngesikhathi esifanayo, ukuphuza ngokweqile izinto ezine-fiber ephezulu kungase kubangele ukuqunjelwa noma ukungaphatheki kahle kokugaya ukudla.
Inani labantu okuqondiwe: Kubantu abanokusebenza kwamathumbu okubuthakathaka (njengabadala noma izingane ezincane), imithamo ephezulu ye-methylcellulose ingase ibangele ukungagayeki ngesikhathi esifushane, ngakho kufanele ikhethwe ngokucophelela.
Ukusebenzisana nezinye izithako: Kwezinye izinhlobo zokudla, i-methylcellulose ingase ibe nomphumela we-synergistic nezinye izithasiselo noma izithako, futhi imiphumela yazo ehlanganisiwe idinga ukucatshangelwa.
5. Isifinyezo kanye ne-Outlook
Ngenjwayelo,i-methylcellulose iyisengezo sokudla esiphephile nesisebenzayo esingeke sidale umonakalo omkhulu empilweni yomuntu phakathi kwenani elifanele lokusetshenziswa. Izici zayo ezingamuncwa ziyenza izinze emgudwini wokugaya ukudla futhi ingaletha izinzuzo ezithile zezempilo. Kodwa-ke, ukuze kuqhutshekwe nokuqinisekisa ukuphepha kwayo ekusetshenzisweni kwesikhathi eside, kuyadingeka ukuqhubeka nokunaka izifundo ezifanele ze-toxicological kanye nedatha yesicelo esisebenzayo, ikakhulukazi umthelela wayo kubantu abakhethekile.
Ngokuthuthuka kwemboni yokudla kanye nokwenza ngcono kwesidingo sabathengi sekhwalithi yokudla, ububanzi bokusetshenziswa kwe-methylcellulose bunganwetshwa ngokuqhubekayo. Ngokuzayo, izicelo eziqavile kumele zicutshungulwe phezu kwesisekelo sokuqinisekisa ukuphepha kokudla ukuze kulethe inani elikhulu embonini yokudla.
Isikhathi sokuthumela: Dec-21-2024