Post Harvest Technology — DU B.A. (Prog) Food Technology as Major Previous Year Question Papers

1. Briefly Answer any six of the following: 3×6=18 (i) What is harvesting maturity in fruits and vegetables? (ii) Define climacteric fruits with one example. (iii) What is pre-cooling and why is it necessary? (iv) Define post-harvest physiology. (v) What is the role of ethylene in fruit ripening? (vi) Mention any two environmental factors responsible for post-harvest losses. (vii) What is sprout suppression in storage crops? (viii) Define Controlled Atmosphere Storage (CAS). (ix) Write the importance of packaging in horticultural produce. 2. Write Short Notes on any three of the following: (i) Biological causes of post-harvest losses. (ii) Degreening of fruits and its importance. (iii) Wax coating in post-harvest preservation. (iv) Evaporative cooling storage system. (v) Physiological disorders in horticultural produce. 4. Describe the factors responsible for post-harvest deterioration of fruits and vegetables. Suggest suitable preventive measures. 18