Explain by giving two examples, how biotechnology has helped the Indian farmers in processing their perishable crops.
Approach · directive: “explain”
What it asks · Show, with two concrete examples, how biotechnology tools (enzymes, microbes, improved planting material, bio-preservation) help farmers process perishables and add value.
The question has 2 parts — answer each
- Explain how biotechnology helps farmers process perishable crops: longer shelf life, value addition, lower losses
- Give two concrete examples of such use
Open with · Fruits and vegetables lose value within days of harvest; biotechnology extends shelf life and turns surplus into storable, higher-value products.
Cover
- Example 1 — enzymes: pectinase and cellulase raise juice yield and clarity in mango, guava and citrus, helping farmer groups turn gluts into pulp.
- Example 2 — microbial fermentation: controlled starter cultures turn surplus fruit and vegetables into vinegar, wine, pickles and fermented beverages with long shelf life.
- Bio-preservation: lactic acid bacteria, bacteriocins and biopolymer (e.g., chitosan) coatings slow spoilage without chemical residues.
- Biocontrol: antagonistic microbes and yeasts reduce storage rots in fruits, cutting post-harvest losses.
- Planting material: tissue-culture banana and processing-grade potato varieties give uniform, high-quality produce suited to industry.
- Waste to value: peels and pomace converted into pectin, enzymes, bio-compost and biogas — extra income.
- Constraints: cost, scale, awareness, testing and regulation; needs FPO-level units, cold chains and PM Kisan SAMPADA Yojana support.
Close with · Taking biotech tools to farm-gate processing units can cut post-harvest losses and raise farm incomes.
Add value (verified)
- MoFPI commissioned NABCONS in 2022 to measure post-harvest losses of agri-produce across India, with 2020-22 as the reference period. PIB — NABCONS Study Assesses Post-Harvest Losses Across 54 Crops During 2020–22 (Ministry of Food Processing Industries) ↗“The Ministry of Food Processing Industries (MoFPI) had commissioned a study through NABARD Consultancy Services Pvt. Ltd. (NABCONS), namely, “Study to determine Post harvest losses of Agri Produce in India” in 2022 with reference year 2020-22.”
- The NABCONS study (2022) estimated post-harvest losses of 7.36 million tonnes of fruits and 11.97 million tonnes of vegetables. PIB — NABCONS Study Assesses Post-Harvest Losses Across 54 Crops During 2020–22 (Ministry of Food Processing Industries) ↗“Category wise losses in quantity Category Quantity lost (Million MT) As per NABCONS study (2022) Cereals 12.49 Pulses 1.37 Oil Seeds 2.11 Fruits 7.36 Vegetables 11.97”
Question: UPSC's CS (Main) 2026, GS Paper III — paper ↗. Approach: Minimalist IAS, checked 30 Sept 2026 (how we verify) — UPSC publishes no model answers. ·
Model answer · 216 words (UPSC limit 150) · Minimalist IAS
Fruits and vegetables lose value within days of harvest: the NABCONS study (2022) for MoFPI put post-harvest losses at 7.36 million tonnes of fruits and 11.97 million tonnes of vegetables. Biotechnology lets farmers turn this perishable surplus into storable, higher-value products.
Example 1: enzymes in fruit processing
- Microbial enzymes such as pectinase and cellulase break down cell walls, raising juice yield and clarity in mango, guava and citrus.
- Farmer groups can convert a glut into pulp and juice that sell through the year instead of dumping fruit at harvest.
Example 2: microbial fermentation
- Controlled starter cultures turn surplus fruit and vegetables into vinegar, wine, pickles and fermented beverages with long shelf life.
- Fermentation needs little capital and suits village-level units, adding value at the farm gate.
Other biotech aids
- Bio-preservation: lactic acid bacteria, bacteriocins and biopolymer coatings such as chitosan slow spoilage without chemical residues; antagonistic microbes and yeasts cut storage rots.
- Planting material: tissue-culture banana and processing-grade potato varieties give the uniform produce that industry accepts.
- Waste to value: peels and pomace become pectin, enzymes, compost and biogas.
Constraints
- Cost, scale, awareness, testing and regulation limit uptake; FPO-level processing units, cold chains and PM Kisan SAMPADA Yojana support are needed.
Taking these tools to farm-gate processing units can cut post-harvest losses and lift farm incomes.
Written by Minimalist IAS from facts checked at source (how we verify) — a little fuller than exam length, so every part of the question is covered; in the hall, keep the structure and trim the detail. UPSC publishes no model answers: compare your structure and coverage with this, then write your own.