Dab tsi yog raffinose thiab Stachyose?

Cov txheej txheem:

Dab tsi yog raffinose thiab Stachyose?
Dab tsi yog raffinose thiab Stachyose?
Anonim

Tsev neeg raffinose ntawm oligosaccharides yog α-galactosyl derivatives ntawm sucrose. Feem ntau yog cov trisaccharide raffinose (ua ntawm galactose, fructose, thiab qabzib) thiab tetrasaccharide stachyose. Cov oligosaccharides no muaj nyob rau hauv qab zib beet molasses thiab tag nrho cov nplej.

Stachyose yog dab tsi?

Stachyose yog tetrasaccharide uas muaj ob chav α-D-galactose, ib chav α-D-glucose, thiab ib chav β-D-fructose txuas txuas raws li gal (α1→6)gal(α1→6)glc(α1↔2β)fru.

raffinose qab zib yog dab tsi?

Raffinose yog a trisaccharide uas cov piam thaj ua haujlwm ua tus choj monosaccharide ntawm galactose thiab fructose. Nws muaj ob qho tib si α thiab β glycosidic bonds thiab tuaj yeem ua rau hydrolyzed rau d-galactose thiab sucrose ntawm enzymes nrog α-glycosidic kev ua, thiab rau melibiose thiab d-fructose ntawm enzymes nrog β-glycosidic kev ua.

Dab tsi muaj raffinose?

Raffinose yog ib qho trisaccharide uas tsim los ntawm

galactose, qabzib, thiab fructose . Nws tuaj yeem pom hauv taum, zaub qhwv, brussels sprouts, broccoli, asparagus, lwm yam zaub, thiab tag nrho cov nplej.

Raffinose siv rau dab tsi?

Thaum lub sijhawm tsim cov suab thaj beet, cov nyiaj ntau ntawm raffinose accumulates hauv cov molasses, uas tuaj yeem siv los tsim qee hom suab thaj xim av. Technically, raffinose tuaj yeem siv los ua tus neeg ua haujlwm tiv thaiv kab mob(kev npaj kho mob khov kho,cryopreservation).

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