Explain by giving two examples, how biotechnology has helped the Indian farmers in processing their perishable crops.
GS310 Marks2026Model answer
Introduction
Biotechnology has enabled Indian farmers and processors to convert highly perishable crops (fruits, vegetables, tubers) into stable, value-added products by controlling biological reactions, extending shelf-life and improving processing yields. Two clear, practical examples are given below showing the tool, its use, and impact on farmers.
Value Addition Block — Key pathways
Example 1 — Use of enzymes and starter cultures to improve processing yields and quality
- What: Application of industrial enzymes (e.g., pectinases) and controlled microbial starter cultures during fruit processing.
- How it helps: Pectinase lowers viscosity and breaks pectin, increasing extraction yield and clarity of juices (mango, aonla), reducing energy and filtration costs; starter cultures give consistent, safe fermentation for products like pickles, vinegars and fruit wines, improving shelf-life and marketability.
- Substantiation: Institutions such as CFTRI and ICAR have demonstrated higher juice yield and clearer concentrates using pectinase; cooperative processors in Maharashtra and Andhra report reduced wastage and better prices.
- Benefit to farmers: Enables aggregation by farmer groups for processing, higher realizations (reduced spoilage, longer market window), and access to new value chains (juice concentrates, wines, pickled preserves).
Example 2 — Post-harvest biotech treatments to delay spoilage and enable processing
- What: Use of ethylene-action inhibitors (1‑MCP) and biopolymer edible coatings (chitosan) derived from biological sources to delay ripening and microbial spoilage.
- How it helps: 1‑MCP binds ethylene receptors, slowing ripening of mangoes/bananas so farmers can transport and supply to processors rather than sell immediately at low prices; chitosan coatings provide antimicrobial barrier, extend shelf-life and reduce losses before drying/dehydration or conversion to chips/pulp.
- Substantiation: Trials by agricultural universities and post-harvest labs in India show extended marketability by several days to weeks, enabling linkage with processing units and reducing forced distress sales during gluts.
- Benefit to farmers: Lower post-harvest losses, ability to time sales to processing windows, improved prices and reduced dependence on distress local markets.
Conclusion
Biotech tools such as enzymes & starter cultures and post-harvest biological treatments (1‑MCP, chitosan) convert perishables into stable, higher-value products—reducing wastage, increasing farmer incomes and integrating growers into processing value chains. Their wider adoption supports agri‑processing targets under national value‑addition programmes.
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