Estimating quality deterioration of agricultural products during storage.
Mandal N.
Author Affiliation: Biotechnology & Instrumentation Center, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur 741252, India.
Environment and Ecology 15 : 403-405
Abstract : Quality deterioration was estimated in mangoes, guavas, bananas, apples, potatoes, sweet potatoes, soyabeans, peas, brinjal [aubergines], green chillies [Capsicum], carrots, tomatoes, onions and radishes stored at 5°C for 7 days. The 1,3-diethyl-2-thiobarbituric acid (DETBA)-malondialdehyde adduct (an index of lipid peroxidation) was extracted with ethyl acetate and the amount was measured by spectrofluorimetry and HPLC with a fluorescence detector. The increase in DETBA values during storage of peas was closely related to the change in surface colour and the decrease in chlorophyll content and reduced form of ascorbic acid. It was concluded that the DETBA method is suitable for estimating quality deterioration during storage.