Tam sim ntawd tom qab kev soj ntsuam ntawm cov enzyme- substrate sib tov tau ua rau ib lossis ntau qhov ntawm cov tshuaj tiv thaiv ( free txo qab zib, dextran, sucrose).
Puas yog dextran A qab zib?
Dextran yog polysaccharide uas muaj cov piam thaj monomers txuas feem ntau los ntawm α(1–6) daim ntawv cog lus, tsim los ntawm ntau cov kab mob. Nws paub zoo tias dextran hauv cane detrimentally cuam tshuam kev ua hauv kev lag luam qab zib.
Dab tsi yog qab zib yog dextran?
Dextrans yog glucose polymers nrog qhov hnyav molecular li ntawm 1,000–40, 000, 000 d altons (Da). Lawv yog tsim los ntawm cov kab mob lactic acid los ntawm cov kev daws teeb meem uas muaj saccharide, tab sis kuj yog los ntawm cov kab mob hniav tsim, Streptococcus mutans.
Qhov twg monosaccharides txo cov suab thaj?
Yog. Tag nrho cov monosaccharides txo cov suab thaj. Glucose, fructose, thiab galactoseyog monosaccharides thiab tag nrho txo cov suab thaj.
Koj qhia li cas yog tias qab zib yog txo cov suab thaj?
Ib qho qab zib yog ib qho uas txo lwm qhov sib xyaw thiab nws tus kheej oxidized; uas yog, carbonyl carbon ntawm qab zib yog oxidized rau ib pawg carboxyl. Cov suab thaj yog cais raws li kev txo cov suab thaj tsuas yog tias nws muaj daim ntawv qhib nrog cov pab pawg aldehyde lossis pab pawg hemiacetal dawb.
