What is the function of stachyose?
What is the function of stachyose?
Stachyose is recognized as a major storage and transport sugar in woody plants, cucurbits and legumes.
Where is stachyose present?
Stachyose is a normal human metabolite present in human milk and is naturally found in many vegetables (e.g. green beans, soybeans and other beans) and plants.
What are examples of stachyose?
Together with related oligosaccharides such as raffinose, stachyose occurs naturally in numerous vegetables (e.g. green beans, soybeans and other beans) and other plants.
What is raffinose and stachyose?
Raffinose contains galactose, glucose, and fructose. Stachyose holds two α-D-galactose units, one α-D-glucose unit, and one β-D-fructose unit. Besides galactinol synthase, raffinose synthase and stachyose synthase are the other two major enzymes involved in the RFO biosynthesis pathway.
What is the structure of stachyose?
C24H42O21Stachyose / Formula
Is stachyose a reducing sugar?
Stachyose are non-reducing sugar. Non-reducing sugar does not reduce Fehling’s solution and Tollens reagent.
What type of carbohydrate is stachyose?
The α-galactosides or oligosaccharides comprise the sugars raffinose, stachyose, verbascose, and ajugose. They are simple sugars comprising a sucrose molecule to which are attached α-d-galactopyranosyl units in α-1,6-galactosidic linkages. They are a common carbohydrate present in the seed of grain legumes.
What are the hydrolysis product of stachyose?
Stachyose is an example of a tetrasaccharide. It gives four molecules of different monosaccharides on complete hydrolysis. These four molecules are one molecule of glucose, one molecule of fructose and two molecules of galactose.
What is stachyose sugar?
Stachyose is a tetrasaccharide consisting of sucrose having an alpha-D-galactosyl-(1->6)-alpha-D-galactosyl moiety attached at the 6-position of the glucose. It has a role as a plant metabolite and a mouse metabolite. It is a raffinose family oligosaccharide and a tetrasaccharide.
Why is stachyose a reducing sugar?
CARBOHYDRATES | Classification and Properties Verbascose (Figure 11) has three molecules of α-d-galactose attached to sucrose; stachyose has two, and raffinose one. They are all nonreducing. Invertase releases the fructose moiety and gives rise to reducing saccharides.
What is the composition of stachyose?
Stachyose is a tetrasaccharide consisting of two α-D-galactose units, one α-D-glucose unit, and one β-D-fructose unit sequentially linked as gal(α1→6)gal(α1→6)glc(α1↔2β)fru.