Question:
Tetra saccharides present in foods are:
Tetra saccharides present in foods are:
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Remember the "Gal-Gal-Glu-Fru" sequence for Stachyose. It is commonly found in legumes and is responsible for flatulence as humans lack the enzyme to digest it.
Updated On: Jul 4, 2026
- Stachyose and scorodose
- Scorodose and maltose
- Stachyose and raffinose
- Scorodose and kestose
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The Correct Option is A
Solution and Explanation
Concept:
Oligosaccharides are classified based on the number of monosaccharide units they yield upon hydrolysis.
• Disaccharides yield 2 units (e.g., Maltose, Sucrose).
• Trisaccharides yield 3 units (e.g., Raffinose).
• Tetrasaccharides yield 4 units (e.g., Stachyose).
Step 1: Identifying Stachyose.
Stachyose consists of four monosaccharide units. It contains two galactose units, one glucose unit, and one fructose unit. \[ \text{Galactose} + \text{Galactose} + \text{Glucose} + \text{Fructose} \]
Step 2: Identifying Scorodose.
Scorodose is a tetrasaccharide found in garlic and onions. It belongs to the group of oligosaccharides with four sugar rings.
Step 3: Analyzing other options.
Raffinose is a trisaccharide (3 units). Maltose is a disaccharide (2 units). Therefore, only Option A correctly pairs two tetrasaccharides. Final Answer: (A)
• Disaccharides yield 2 units (e.g., Maltose, Sucrose).
• Trisaccharides yield 3 units (e.g., Raffinose).
• Tetrasaccharides yield 4 units (e.g., Stachyose).
Step 1: Identifying Stachyose.
Stachyose consists of four monosaccharide units. It contains two galactose units, one glucose unit, and one fructose unit. \[ \text{Galactose} + \text{Galactose} + \text{Glucose} + \text{Fructose} \]
Step 2: Identifying Scorodose.
Scorodose is a tetrasaccharide found in garlic and onions. It belongs to the group of oligosaccharides with four sugar rings.
Step 3: Analyzing other options.
Raffinose is a trisaccharide (3 units). Maltose is a disaccharide (2 units). Therefore, only Option A correctly pairs two tetrasaccharides. Final Answer: (A)
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