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Explainabouttehh structure,natureand properties of sucrose . |
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Answer» SOLUTION :(i) Surcose commonlyknown astable sugaris the mostabuandantdisaccharide . Itis obtainedmainly form jucieof SUGAR caneand sugarebeets Insectssuchas honeybeens have theenzyme invetasethat catalyses the hydrolysis ofinto glucose and fructose mixture . (ii) Honey is primary a mixtureof glucose ,fructoseand sucrose . On hydrolysissurcose YIELDS equalamountof glucoseand fructoseunits . `"Sucrose" underset(H_(2)O)overset("invertase") to "Glucose + Fructose"` (iii)Sucrose`(+66.6^(@))` and glucose`(52.5^(@))`are dextrorotorycompounds while fructoseislevo rotatory ` ( - 92.4^(@))` (iv) Duringhydrolysis of sucrosethe opticalrotation of thereactionmixturechaangesfrom dextroto levo. Hencesucrose is alsoas invert sugar. (v) Structure:  In sucrose CL of `alpha`- D glucoseis joined to C2 of D - Fructose . Theglycosidc bondthus formedis called`alpha , 1,2`- glucosidicbond. Sinceboth thecarbonyl carboms areinvolved in the glycosidicbonding , surcoseis a non - REDUCINGSUGAR . |
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