I-ASPARTAME
Isingeniso
I-Aspartame iyisithako sokwenziwa, esiyi-amino acid dipeptide derivative. Yatholakala ososayensi bamakhemikhali ngo-1965 lapho bethuthukisa imithi yezilonda. Inezinzuzo zomthamo ophansi, ubumnandi obuphezulu, ukunambitheka okuhle, ingathuthukisa ukunambitheka kwezithelo ezisawolintshi nezinye izithelo, yehlise amakhalori, ayiboli, futhi inobuthi obuphansi kunezithako zokwenziwa zokwenziwa ezifana ne-saccharin.
Izakhiwo zamakhemikhali
Impuphu emhlophe ekristalu, engenaphunga, ubumnandi obuqinile, ubumnandi obumsulwa, ubumnandi obuphindwe ka-100 ~ 200 kune-sucrose. Iphuzu lokuncibilika lingu-235℃ (ukubola). Inezakhiwo ezijwayelekile zama-amino acid. Izinzile ngaphansi kwezimo ezomile noma ebangeni le-Ph elingu-2 kuya ku-5. Ingafakwa emanzini ukuze ikhiqize ama-amino acid e-monomer kusisombululo samanzi esinamandla se-acidic.
SEBENZISA
I-Aspartame iwukwenziwa kwe-L-aspartic acid kanye ne-L-phenylalanine. I-dipeptide ingamuncwa ngokuphelele futhi isetshenziswe umzimba womuntu. Ayinabo ubuthi futhi ayinangozi, iphephile futhi inokwethenjelwa. Ukunambitheka kuhlanzekile futhi kupholile. Inambitheka njenge-sucrose, kodwa ubumnandi buphindwe izikhathi ezingu-200 kunobe-sucrose, kanti ikhalori ingu-1/200 kuphela we-sucrose. Ukudla njalo akukhiqizi amazinyo, akuthinti ushukela wegazi, futhi akubangeli ukukhuluphala, umfutho wegazi ophakeme, isifo senhliziyo. Inezelwa kabanzi ekudleni okuhlukahlukene, imikhiqizo ephumayo kanye nazo zonke izinhlobo zeziphuzo ezithambile neziqinile, futhi izinhlobo ezingaphezu kuka-4,000 ze-aspartame zisetshenzisiwe. Ingasetshenziswa njengesithako sokudla kanye nesithako esinomsoco esinobumnandi obukhulu.
