Dab Tsi Yog Sucrose?

Video: Dab Tsi Yog Sucrose?

Video: Dab Tsi Yog Sucrose?
Video: Tsis Tim Xwm Kab Los Yog Dab Roog { Nkauj Tawm Tshiab By Yias Vwj 09-03-2020} 2024, Cuaj hlis
Dab Tsi Yog Sucrose?
Dab Tsi Yog Sucrose?
Anonim

Muaj ntau ntau hom piam thaj hauv qhov muaj. Qhov tseem ceeb tshaj plaws rau peb ntawm lub sijhawm no yog sucrose. Hauv kev thev naus laus zis, nws raug xa ua suab thaj.

Sucrose yog cov khoom lag luam me tshaj plaws uas nthuav tawm hauv cov hlwb ntawm qee cov nroj tsuag. Nws yog feem ntau thoob plaws hauv cov cog ntoo, qhov twg nws yog cov tshuaj hauv cov khoom loj tshaj plaws - txog 28% hauv kab tsib, 18% hauv qab zib thiab lwm yam. Yog li, sucrose belongs rau ib pab pawg tseem ceeb tshaj plaws ntawm cov as-ham, uas yog carbohydrates.

Cov sucrose dawb yog pom hauv xwm. Nws yog cov xim tsis muaj xim crystalline khoom nrog lub qab saj. Nws cov xeeb ceem ntawm lub cev yog qhov tseem ceeb rau kev nkag siab nws ua haujlwm. Nws dissolves hauv dej, thaum haus cawv hauv cov khoom no muaj txwv. Thaum rhuab, nws melts, caramelizes thiab hluav taws kub, tso dej hauv cov txheej txheem.

Nws pom tau tias cov lwg ntawm sucrose tuaj yeem suav tau tias yog los ntawm lub cev qhuav dej ntawm ib lub molecule ntawm fructose thiab ib qho qauv ntawm cov piam thaj.

Carbohydrates, ntawm qhov tod tes, tuaj yeem suav hais tias yog los ntawm ob lub lwg me me ntawm monosaccharides (qabzib, fructose) los ntawm kev tso dej tawm. Lawv raug hu ua kev tsis sib haum, raws li sucrose lossis qab zib.

Qab zib
Qab zib

Nyob rau tib lub sijhawm, kev sib xyaw ntawm cov piam thaj thiab fructose tau los ntawm hydrolysis yog hu ua cov khoom muag cov suab thaj. Cov txheej txheem hu ua inversion, thiab qhov tshwm sim invert qab zib yog zib ntab. Cov kws tshaj lij hais tias cov zib ntab tsuas yog cov piam thaj.

Artificially, nws tuaj yeem tau txais los ntawm kev ua noj ua haus jam, tom qab ntxiv ib me nyuam diav ntawm txiv qaub kua txiv. Tsis zoo li sucrose, invert qab zib yog qhov nyuaj dua rau crystallize dua li sucrose. Qhov no kuj yog vim li cas vim li cas khoom qab zib tsis candied.

Sucrose yog ib qho ntawm cov khoom siv dav siv hauv kev lag luam khoom noj khoom haus. Lawv muaj cov ntsiab lus siab caloric. Lawv cov kev daws teeb meem muaj qhov cim tau siv tshuaj tua kab mob.

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