Refrigeration preservation method of hulled fresh lotus seeds

Abstract

The invention discloses a refrigeration preservation method of hulled fresh lotus seeds. The refrigeration preservation method mainly comprises the following steps: (1), preprocessing fresh picked lotus seedpods at a low temperature; (2), screening the full fresh hulled lotus seeds; (3), instantly blanching; (4), protecting color, preserving and coating; (5), internally filling an iron powder drying agent small bag, and vacuum-packaging; and (6), refrigerating at a low temperature of 2-4 DEG C to obtain the hulled fresh lotus seeds. According to the refrigeration preservation method disclosed by the invention, physiological metabolism activities such as photosynthesis, respiration and evaportranspiration of the hulled fresh lotus seeds are effectively reduced, the color browning in a storage period is decreased, the appearance quality of the fresh lotus seeds is fully remained, the nutritional quality and flavor of the lotus seeds are well kept, and the effective preservation period is capable of reaching above 3 months. The refrigeration preservation method disclosed by the invention is simple in process, strong in maneuverability, small in investment, low in energy consumption, safe, and free of pollution; and the shelf life of fresh lotus seeds is greatly prolonged, and a new approach is developed for high-valued utilization of the lotus seeds.

Description

technical field [0001] The invention belongs to the technical field of fresh-keeping and storage of fruits and vegetables, and in particular relates to a cold-keeping and fresh-keeping method for fresh lotus with shells. Background technique [0002] lotus( Nelumbo nucifera Gaertn ) is a perennial aquatic herb and is a special product in my country. Lotus seeds are rich in protein, carbohydrates, vitamins and a variety of essential amino acids, flavonoids, water-soluble polysaccharides, superoxide dismutase and calcium, phosphorus, iron, zinc and other trace elements , is recognized as a good nourishing product for all ages. It has the functions of nourishing the spleen and stopping diarrhea, nourishing the kidney and astringent essence, nourishing the heart and calming the nerves, strengthening the brain and improving intelligence. It is more suitable for middle-aged and elderly people with physical weakness, insomnia, loss of appetite and cancer patients. The medicinal val...

AI Technical Summary

Problems solved by technology

The preservation time of the former is too short, and the commercial value is not high; the preservation period of the latter can reach more than 3 months, but the process is relatively complicated, and special ultra-high pressure processing equipment is required