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Isitatshi esilungisiweyo
Ikwabizwa ngokuba zii-starch derivatives, eziveliswa ngokunyangwa ngokwasemzimbeni, ngokwekhemikhali okanye nge-enzymatic ngesitatshi somthonyama ukutshintsha, ukomeleza okanye ukonakalisa iipropathi ezintsha ngokuqhekeka kwemolekyuli, ukulungiswa ngokutsha okanye ukwaziswa kwamaqela amatsha abambeleyo.Kukho iindlela ezininzi zokuguqula isitashi sokutya, njengokupheka, i-hydrolysis, i-oxidation, i-bleaching, i-oxidation, i-esterification, i-etherification, i-crosslinking kunye njl.
Ukuguqulwa komzimba
1. Ngaphambi kwe-gelatinization
2. Unyango lwemitha
3. Unyango lobushushuUkuguqulwa kweekhemikhali
1. I-Esterification: Isitashi se-acetylated, i-esterified kunye ne-acetic anhydride okanye i-vinyl acetate.
2. I-Etherification: I-Hydroxypropyl starch, i-etherified nge-propylene oxide.
3. I-Acid iphathwe isitashi , iphathwa nge-acids inorganic acids.
4. Isitashi esiphathwe nge-alkali, siphathwa nge-alkaline ye-inorganic.
5. Isitashi esine-bleached, sijongane ne-hydrogen peroxide.
6. I-Oxidation: isitashi se-oxidized, siphathwa nge-sodium hypochlorite.
7. I-Emulsification: isitashi se-sodium Octenylsuccinate, i-esterified kunye ne-octenyl succinic anhydride.
