Selected quality attributes of fine Basmati rice: Effect of storage history and varieties

Storage period, temperature and moisture are the key traits, accountable for variation in chemical, cooking and sensory attributes of rice. The study of two promising varieties of fine Basmati rice stored at various temperatures revealed pronounced influence of storage on various quality traits i.e. volume expansion ratio, water absorption ratio, elongation ratio, alkali spreading value, amylose contents and sensory attributes. The cooking quality was affected significantly in the months following harvesting. Freshly harvested Basmati varieties (Basmati Super and Basmati-385) were aged for a period of sixteen weeks (4 months) at different temperatures (5, 25, 35, and 45 degrees C). Aging of rice played imperative role in establishing the aforesaid quality traits. Storage condition resulted in increased moisture, water absorption ratio, volume expansion ratio and elongation ratio while amylose content and alkali spreading value of both rice varieties were decreased. The protein content showed insignificant differences. Storage of both varieties at 35C gave best results for sensory attributes like taste and over all acceptability. Basmati Super showed better performance in cooking and eating quality than that of Basmati-385 during storage.