Question

Enzyme which is useful to remove the oily stains in laundry?

• A. Lipase
• B. Renin
• C. Protease
• D. Amylase

Answer 1

The Correct Option is A

Lactic Acid Bacteria (LAB), including species such as Lactobacillus and Bifidobacterium, play a crucial role in the fermentation process of curd/yogurt. During fermentation, these bacteria produce enzymes that help convert lactose (milk sugar) into lactic acid. This process of acidification gives curd its characteristic tangy taste and thick texture.

Apart from lactic acid production, LAB can also synthesize certain vitamins, including Vitamin B12. Vitamin B12 is a complex and important nutrient that is naturally produced by certain bacteria and archaea. In the case of curd fermentation, specific strains of LAB can contribute to the production of Vitamin B12, increasing its levels in the final product.

It's important to note that the Vitamin B12 content in curd can vary depending on the specific bacterial strains used for fermentation, the processing methods, and the initial ingredients. Nonetheless, LAB fermentation can potentially increase the Vitamin B12 content in curd.

Answer 2

Many modern laundry detergents incorporate enzymes to enhance their stain-removing capabilities. These enzymes work by breaking down complex molecules into smaller, more water-soluble components that can be easily washed away.

For removing oily stains specifically, the enzyme that is most effective and commonly used in laundry detergents is:

Lipase 

Lipases are a class of enzymes that catalyze the hydrolysis of fats (lipids), breaking them down into glycerol and fatty acids. These smaller molecules are then more easily dispersed in water and removed from the fabric during the washing process. Therefore, lipases are a key ingredient in detergents designed to tackle greasy or oily stains.