Preservation method capable of prolonging sweet potato storage life

Abstract

The invention provides a preservation method capable of prolonging a sweet potato storage life. The preservation method comprises the following steps of S10 sweet potato selection, S11 warehouse selection, S12 warehouse disinfection, S13 preservation processing, S14 air-drying processing and S15 storage processing. A preservative is simple to prepare, the selected raw materials are high in safety performance and are harmless to a human body, the sweet potatoes preserved by adopting the preservative do not contain any substance harmless to the human body, the edible safety is high, the method of preservation of the sweet potatoes is simple, and a preservation effect of the sweet potatoes is good. The preservation time can be at least nine months or longer at room temperature by adopting the preservative, the sweet potatoes basically have no difference with fresh sweet potatoes in the aspects of color, luster, taste and nutrition, and the original color and taste of the sweet potatoes are retained.

Description

technical field [0001] The invention relates to the field of fresh-keeping of sweet potatoes, in particular to a fresh-keeping method capable of prolonging the storage period of sweet potatoes. Background technique [0002] Sweet potato is also called sweet potato, sweet potato, red moss, sweet potato, sweet potato. Sweet potato is one of the main food crops in my country. Sweet potato contains carotene, vitamins, lysine and other anti-cancer substances, and has high nutritional and medicinal value. The harvest season of sweet potatoes is autumn, and the preservation of sweet potatoes is a relatively difficult problem. Generally, sweet potatoes will sprout when placed in a place with too high temperature; It is easy to be frozen and form a hard core; sweet potatoes at room temperature can only be stored for about 50-60 days. [0003] At present, the storage methods of sweet potatoes include indoor storage method and cellar storage method. The indoor storage method is gener...

AI Technical Summary

Problems solved by technology

The cellar storage method is relatively simple, but if the underground temperature is too low, it is easy to freeze and damage, the temperature control is not good, and rot will occur when the temperature is too high

[0004] In order to improve the storage problem of sweet potatoes, people have developed some sweet potato preservatives, but the existing sweet potato preservatives are all based on pesticide fungicides, which have certain toxicity, and residues on sweet potatoes will affect human health; and sweet potatoes Pathogenic bacteria are prone to develop resistance to pesticides and fungicides, and their fresh-keeping effect is not good, and sweet potatoes are harvested in autumn. The price of sweet potatoes at this time is relatively low, which will discourage farmers' desire to plant sweet potatoes, and in spring and summer The price of sweet potatoes is much higher