Quality characteristics of dehydrated leafy vegetables influenced by packaging materials and storage temperature
Uadal Singh, Vidya Ram Sagar
Abstract
Uadal Singh, Vidya Ram Sagar
Abstract
Leafy vegetables (curry leaves and drumstick leaves) were dehydrated in cabinet drier at 58±2°C and packed in four packaging materials (200 gauge and 400 gauge LDPE, 200 gauge HDPE and 150 gauge PP) and stored at room temperature (RT) and low temperature (LT) for 3 months to evaluate best package and storage temperature for maximum retention of nutrients in leafy vegetables during storage. HDPE (200 gauge), followed by storage at LT (7±1°C), was found to be good for higher retention of β-carotene, ascorbic acid, chlorophyll content, rehydration ratio, sensory score and less moisture and non-enzymatic browning (NEB) in dehydrated vegetable leaves during 3 months of storage.
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Leafy vegetables (curry leaves and drumstick leaves) were dehydrated in cabinet drier at 58±2°C and packed in four packaging materials (200 gauge and 400 gauge LDPE, 200 gauge HDPE and 150 gauge PP) and stored at room temperature (RT) and low temperature (LT) for 3 months to evaluate best package and storage temperature for maximum retention of nutrients in leafy vegetables during storage. HDPE (200 gauge), followed by storage at LT (7±1°C), was found to be good for higher retention of β-carotene, ascorbic acid, chlorophyll content, rehydration ratio, sensory score and less moisture and non-enzymatic browning (NEB) in dehydrated vegetable leaves during 3 months of storage.
Key concepts: Food science, Browning, Ascorbic acid, Low-density polyethylene, Moisture, Water content, Chemistry, Shelf life