Chii chinonzi modified starch?

Modified starch inoreva starch yakasandurwa kemikari kana panyama kuti ivandudze mashandiro ayo ekushandisa kune chaiwo maapplication. Starch, carbohydrate polymer inoumbwa neglucose units, yakawanda muzvirimwa zvakawanda uye inoshanda sesosi huru yesimba kuvanhu nemhuka. Akagadziridzwa masitachi anoshandiswa zvakanyanya mumaindasitiri akasiyana, anosanganisira ezvekudya, emishonga, machira, uye kugadzira mapepa. Heino mhedziso yeyakagadziridzwa starch:

Nzira dzekugadzirisa:

1. Kemikari Kugadziriswa: Nzira dzemakemikari dzinosanganisira kurapa starch neacids, alkalis, kana ma enzymes kushandura chimiro chayo chema molecular. Yakajairika makemikari ekuchinja maitiro anosanganisira etherification, esterification, cross-linking, oxidation, uye hydrolysis.
2. Kugadziriswa Kwemuviri: Nzira dzemuviri dzinosanganisira marapirwo emuchina kana ekupisa kuti agadzirise zvimiro zve starch pasina shanduko yemakemikari. Idzi nzira dzinosanganisira kudziyisa, kuveura, extrusion, uye crystallization.

Zvinhu zveModified Starch:

• Kukora uye Gelling: Yakagadziridzwa masitachi anoratidza akakwenenzverwa kukora uye gelling zvivakwa zvichienzaniswa neanowanikwa starches, zvichiita kuti zvive zvakakosha zvekuwedzera muzvigadzirwa zvekudya senge sosi, soups, gravies, uye madhiri.
• Kugadzikana: Yakagadziridzwa starches inogona kunge yakawedzera kugadzikana kune zvinhu zvakaita sekupisa, asidi, shear, uye kutonhora-kunyungudika kutenderera, zvichibvumira kuita zvirinani mukugadzirisa chikafu uye kuchengetedza.
• Viscosity Control: Yakagadziridzwa starches inogona kugadzirwa kuti ipe chaiyo viscosity profiles, ichibvumira kunyatso kudzora pamusoro pekugadzirwa uye kuenderana kwezvigadzirwa zvekudya.
• Kujeka: Mamwe mashechi akagadziridzwa anopa kujeka kwakavandudzwa uye pachena mumhinduro, zvichiita kuti ive yakakodzera kushandiswa muzvigadzirwa zvechikafu zvakajeka kana zvinopenya.
• Freeze-Thaw Kugadzikana: Mamwe akagadziridzwa masitachi anoratidza yakagadziridzwa kugadzika kwechando, ichiita kuti ive yakakodzera kushandiswa muzvikafu zvechando.

Applications:

1. Indasitiri Yezvekudya: Mashizha akagadziridzwa anoshandiswa zvakanyanya seanokora, anosimbisa, majelling agents, uye emulsifiers mune zvakasiyana-siyana zvezvigadzirwa zvekudya, zvinosanganisira sosi, madhirezi, soups, madhiri, zvinhu zvekubheka, uye nyama yakagadzikiswa.
2. Pharmaceuticals: Muindasitiri yemishonga, masitadhi akagadziridzwa anoshandiswa seanosunga, disintegrants, mafirita, uye anodzorwa-kuburitsa maajenti mukugadzirwa kwehwendefa uye mamwe mafomu emumuromo.
3. Micheka: Mashizha akagadziridzwa anoshandiswa mukuyera machira kuvandudza simba reshinda, lubricity, uye mhando yemachira panguva yekuruka nekupedza maitiro.
4. Kugadzira Mapepa: Mukugadzira mapepa, masitadhi akagadziridzwa anoshandiswa seaya epamusoro saizi, mabhaidha ekuputira, uye emukati ekuwedzera kuvandudza simba remapepa, kudhindwa, uye zvivakwa zvepasi.
5. Adhesives: Akagadziridzwa starches anoshandiswa semabhainda uye anonamira mune akasiyana maapplication, anosanganisira paperboard laminating, corrugating, uye plywood kugadzira.

Kuchengetedza uye Mitemo:

• Akagadziridzwa masitachi anoshandiswa muchikafu nemishonga ekushandisa ari pasi pekutariswa kwemutemo uye anofanirwa kutevedzera mazinga ekuchengetedza akamiswa nemasangano anodzora akadai seFood and Drug Administration (FDA) muUnited States neEuropean Food Safety Authority (EFSA) muEuropean Union. .
• Aya masangano anodzora anoongorora kuchengetedzeka kwemasitashi akagadziridzwa zvichibva pazvinhu zvakaita sekuchena, kuumbwa, kushandiswa kwakatarisirwa, uye zvingangoitika zvehutano.

Yakagadziridzwa starches inoita basa rakakosha muakasiyana maindasitiri, ichipa yakagadziridzwa inoshanda zvivakwa uye kuita kwakasiyana-siyana kune akasiyana maapplication. Nekugadzirisa chimiro chema molecular ye starch, vagadziri vanogona kugadzirisa zvivakwa zvaro kuti zvienderane nezvinodiwa nekuita, zvichitungamira kune yakawedzera kunaka kwechigadzirwa, kugadzikana, uye kugutsikana kwevatengi.