Gaosiga auala o le glutamate monosodium: hydrolysis, fermentation, synthesis ma le aveesea.
1. Hydrolysis
Fa'avae: O mea fa'apolotini mata e fa'asusuina e le suka e maua ai le glutamic acid, ma fa'aaogaina le glutamic acid hydrochloride.
E itiiti le solubility i le hydrochloric acid. O le glutamic acid e tuueseese ma aveese, ona sosoo ai lea
O le monosodium glutamate ua saunia e ala i togafitiga faʻaituau.
O mea masani fa'apolotini mata i le gaosiga - kulūlū, soya, sana, ma isi.
Hydrolysis neutralization
Polotini mata mea - glutamic acid - monosodium glutamate
2. Fa'afefeteina
Fa'avae:
O mea mata masoa e fa'asusuina e maua ai le kulukose, po'o le molasses po'o le acetic acid e fa'aoga sa'o e fai
Meafaitino: glutamic acid e biosynthetically synthesized e le glutamic acid e gaosia ai siama, ona faʻaumatia lea ma aveese mai.
Fai MSG.
Mea mata masoa – → suka suka – → glutamic acid fa'afefete - → fa'a'ese'ese - → monosodium glutamate
3. auala fa'akomepiuta
Fa'avae: o le suau'u ta'e kasa propylene ua fa'ama'iina ma fa'amamuina e maua ai le acrylonitrile.
Cyanidation, hydrolysis ma isi gaioiga e maua ai le racemic glutamic acid, ona vaevaeina lea i le L-glutamic acid,
Ona faia lea i le monosodium glutamate.
Propylene → oxidation ma ammoniation → acrylonitrile → glutamic acid → monosodium glutamate
4. Auala e aveese ai
Fa'avae: Ave molasses otaota e fai ma mea mata, toe fa'afo'i muamua le sucrose i molasses otaota, ona toe fa'aaogaina lea o le suavai otaota.
O le monosodium glutamate na saunia e ala i le faʻafefeteina ma le faʻaogaina i le alkali metotia, aveese mai le glutamic acid, ona saunia lea o le monosodium glutamate.
Hydrolysis, fa'a'au'au fa'atosina, fa'amama
Molasses otaota — → glutamic acid — → monosodium glutamate
Taimi meli: Tes-07-2022