Sweet potato preservation agent and sweet potato preservation method

Abstract

The invention provides a sweet potato preservation agent and a sweet potato preservation method. The sweet potato preservation method comprises the following steps: selecting normal sweet potatoes without wormholes, damage and deterioration; by mass percent, adding 3%-8% of buckwheat honey and 1%-2% of rape pollen into 90%-95% of aseptic water, stirring to be uniform to prepare the preservation agent, and uniformly spraying the preservation agent to the selected sweet potatoes to ensure that all parts of each sweet potato can absorb the preservation agent; naturally drying the sweet potatoes sprayed with the preservation agent, and storing the sweet potatoes at the normal temperature in a dry ventilated environment. The preservation agent provided by the invention is easy to prepare; the selected raw materials are high in safety and harmless to a human body; the sweet potatoes preserved by adopting the preservation agent do not contain any substance harmful to the human body, are high in eating safety and easy to preserve, has a good preservation effect, and can be preserved for more than 8 months at the normal temperature.

Description

technical field [0001] The invention relates to the field of sweet potato fresh-keeping, in particular to a sweet potato fresh-keeping agent and a fresh-keeping method thereof. Background technique [0002] 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 places with too high temperature; placed in humid and hot places, it is easy to cause pathogens to invade and rot; It is easy to be frozen and form a hard core; sweet potatoes at room temperature can only be stored for about 30-40 days. [0003] At present, the storage methods of sweet potatoes include indoor storage method and cellar storage method. The indoor storage method is generally to put wooden boards on the...

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

[0005] In order to improve the storage problem of sweet potatoes, people have developed some sweet potato preservatives, but the existing sweet potato preservatives all use pesticide fungicides as main components, and pesticide fungicides have certain toxicity, and residues on sweet potatoes will affect human health; and Sweet potato pathogens are prone to resistance to pesticides and fungicides, and their fresh-keeping effect is not good