Cov xim twg iodine tig thaum muaj piam thaj?
Cov xim twg iodine tig thaum muaj piam thaj?

Video: Cov xim twg iodine tig thaum muaj piam thaj?

Video: Cov xim twg iodine tig thaum muaj piam thaj?
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Anonim

Nyob rau hauv muaj cov hmoov txhuv nplej siab, iodine puv a xiav / xim dub. Nws muaj peev xwm paub qhov txawv ntawm cov hmoov txhuv nplej siab los ntawm cov piam thaj (thiab lwm yam carbohydrates) siv qhov kev sim tshuaj iodine. Piv txwv li, yog tias iodine ntxiv rau hauv cov qos yaj ywm peeled ces nws yuav tig dub. Benedict's reagent tuaj yeem siv los ntsuas cov piam thaj.

Kuj paub, Xim iodine tig li cas thaum muaj hmoov txhuv nplej?

xiav-dub

Tsis tas li, Benedict tig dab tsi thaum muaj cov piam thaj nyob hauv? Benedict cov tshuaj yog siv los kuaj cov suab thaj yooj yim, xws li qabzib. Nws yog qhov tseeb xiav daws ntawm sodium thiab tooj liab ntsev. Nyob rau hauv lub xub ntiag ntawm yooj yim suab thaj, lub xiav tshuaj hloov xim rau ntsuab, daj , thiab cib-liab , nyob ntawm seb muaj pes tsawg lub suab thaj.

Qhov thib ob, puas yog iodine cuam tshuam nrog piam thaj?

Iodine tsim cov xim xiav rau dub nrog cov hmoov txhuv nplej siab, tab sis ua tsis hnov mob nrog qabzib . Yog iodine tshuaj yog ntxiv rau a qabzib tov, tsuas yog xim pom yog xim liab los yog daj xim ntawm lub iodine tshuaj . Starch yuav tsis hnov mob nrog Benedict lub reagent, yog li cov tshuaj yuav nyob twj ywm xiav.

Vim li cas Starch hloov xim thaum ntxiv iodine?

Amylose nyob rau hauv hmoov txhuv nplej siab yog lub luag haujlwm rau kev tsim cov xim xiav xim nyob rau hauv lub xub ntiag ntawm iodine tshuaj . Cov iodine tshuaj molecule plam sab hauv ntawm amylose kauj. Qhov no ua rau linear triiodide ion complex nrog yog soluble uas ntws mus rau hauv cov kauj ntawm hmoov txhuv nplej siab ua rau mob hnyav xiav-dub xim.

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