Write a note on biocontrol agents.

Biocontrol agents, such as bacteria, fungi, viruses, and protozoans, are utilized to manage pathogens, pests, and weeds. They either induce the disease in pests, compete with them, or directly eliminate them. Examples: Bacillus thuringiensis: 1. Bacillus thuringiensis (Bt) serves as a microbial pesticide specifically designed for eliminating butterflies and caterpillars. 2. Bt is employed to … Read more

What is biogas? Write in brief about the production process.

Biogas, an eco-friendly renewable energy, results from breaking down organic matter like food scraps and animal waste. It can power vehicles, heat homes, and generate electricity. Anaerobic digestion encompasses the following processes: i. Hydrolysis or solubilization: Clostridium and Pseudomonas, as anaerobic hydrolyzing bacteria, break down carbohydrates into simple sugars, proteins into amino acids, and lipids … Read more

Many microbes are used at home during preparation of food items. Comment on such useful ones with examples.

1. Many home-cooked dishes involve the use of microorganisms. 2. Dhokla is prepared from gram flour and buttermilk using Lactobacilli through fermentation. 3. Dosa and idlis are made from rice and black gram batter, fermented by airborne Leuconostoc and Streptococcus bacteria. 4. Some mushrooms and truffles, with large fleshy fruiting bodies, are consumed as sugar-free, … Read more

Milk start to coagulate when Lactic Acid Bacteria (LAB) is added to warm milk as a starter. Mention any two other benefits of LAB.

Production of dairy production: Curd: It can be a finished dairy product or the initial step in making cheese. Coagulation, induced by rennet, culture, or edible acids like lemon juice, causes milk proteins to form solid curds. Yogurt: Yogurt forms by blending heated milk with bacteria, specifically Lactobacillus bulgaricus and Streptococcus thermophilus. The mixture is … Read more