Question

Immobilized __________ is used to remove the raffinose and stachyose from soybean milk.

(a) raffinase

(b) xylose isomerase

(c) invertase

(d) papain

This question was posed to me during an online interview.

My doubt is from High Fructose Corn Syrups and use of Immobilized Raffinase, Invertase and Lactase in section Immobilized Enzymes and their Uses of Enzyme Technology

Answer 1

Right choice is (a) raffinase

Explanation: Immobilized raffinase is used to remove the raffinose and stachyose from soybean milk. Raffinose and stachyose are responsible for the flatulence that may be caused when soybean milk is used as a milk substitute in special diets. Hence their removal becomes necessary. Xylose isomerase isomerizes α-D-glucopyranose to α-D –fructofuranose. Invertase catalyzes the hydrolysis of sucrose. Papain is used in meat tenderization and is a proteolytic enzyme.