The invention discloses a refrigerating preservation method of fresh
lotus seedpods. The method includes the following steps of 1, low-temperature cleaning of fresh-picked
lotus seedpods; 2, low-temperature soaking and
ozone water sterilization; 3, composite color-protecting
preservative film formation treatment; 4,
polypropylene preservation bag packaging, and conduction of low-temperature
refrigeration at the temperature of 0-2 DEG C to obtain finished products. According to the method, microorganisms on the surfaces of the
lotus seedpods can be effectively restrained or killed,
photosynthesis,
respiration, rising, glycometabolism and other physiological
metabolism activities of the fresh lotus seedpods are retarded, and
ethylene release and
chlorophyll degradation can be restrained; color
browning of the fresh lotus seedpods in the storage period is retarded, the appearance quality of the fresh lotus seedpods is fully reserved, and the
nutritional quality and
flavor of lotus seeds are well kept; the
effective length for preservation of the fresh lotus seedpods can be kept for as long as 50 days through the preservation method. The method is simple and easy to carry out, high in
operability, low in
energy consumption cost and free of excessive investment, the process is environment-friendly, safe and free of
pollution, the obtained products are practical and convenient to eat, the
shelf life of the fresh lotus seedpods is greatly prolonged, and a new way is developed for high-value utilization of the lotus seed products.