BIOLOGY
CLASSIFICATION OF CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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D-fructose, D-glucose and two molecules of D-galactose
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D-fructose, D-glucose and one molecules of D-galactose
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D-fructose, D-glucose and three molecules of D-galactose
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D-fructose, D-glucose and four molecules of D-galactose
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Detailed explanation-1: -Stachyose is a tetrasaccharide consisting of two -D-galactose units, one -D-glucose unit, and one -D-fructose unit sequentially linked as gal(1→6)gal(1→6)glc(1↔2)fru.
Detailed explanation-2: -Stachyose is a tetrasaccharide made up of 1 glucose, 2 galactose and 1 fructose units joined together by 3 glycosidic bonds.
Detailed explanation-3: -Stachyose hydrolysis catalyzed by TEG resulted in formation of the products, raffinose, galactose and sucrose in 3 h.
Detailed explanation-4: -Oligosaccharides. The so-called raffinose family of oligosaccharides comprises raffinose (trisaccharide), stachyose (tetrasaccharide), and verbascose (pentasaccharide), all of which occur in the seeds of legumes, as well as in different parts of plants.
Detailed explanation-5: -Together with related oligosaccharides such as raffinose, stachyose occurs naturally in numerous vegetables (e.g. green beans, soybeans and other beans) and other plants.