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Sitaṣi ti a ṣe atunṣe
O tun jẹ awọn itọsẹ sitashi, eyiti o jẹ iṣelọpọ nipasẹ ti ara, kemikali tabi itọju enzymatically pẹlu sitashi abinibi lati yipada, mu okun tabi ba awọn ohun-ini titun jẹ nipasẹ fifọ molikula, atunto tabi iṣafihan awọn ẹgbẹ aropo tuntun.Awọn ọna lọpọlọpọ lo wa lati yipada sitashi ounjẹ, gẹgẹbi sise, hydrolysis, oxidation, bleaching, oxidation, esterification, etherification, crosslinking ati be be lo.
Iyipada ti ara
1. Pre-gelatinization
2. Itọju Radiation
3. Ooru itọjuIyipada kemikali
1. Esterification: Sitashi Acetylated, esterified pẹlu acetic anhydride tabi vinyl acetate.
2. Etherification: Hydroxypropyl sitashi , etherified pẹlu propylene oxide.
3. Acid mu sitashi , mu pẹlu inorganic acids.
4. Sitashi ti a tọju sitashi, ti a tọju pẹlu ipilẹ inorganic.
5. Sitashi bleached, ti a ṣe pẹlu hydrogen peroxide.
6. Oxidation: Sitashi Oxidized, mu pẹlu iṣuu soda hypochlorite.
7. Emulsification: sitashi sodium Octenylsuccinate, esterified pẹlu octenyl succinic anhydride.
