Protective gas for cellaring sweet potato

Abstract

The invention provides a protective gas for cellaring sweet potato, comprising the ingredients according to volume ratio: 0.2 part of ethanol gas, 82 parts of nitrogen, 0.3 part of carbon dioxide, 16 parts of oxygen, 23 parts of water vapor, and 0.12 part of styrene; the gas is hermetically charged into a cellar to protect the sweet potato in the cellar, air pressure in the cellar is 0.082 Mpa, the temperature of the protective gas charged to the cellar is 10-22 DEG C, and storage temperature in the cellar is adjusted through changes in the temperature of the protective gas. The protective gas provided herein is used to preserve sweet potatoes in the cellar, the protective gas is charged into the cellar to protect sweet potato, microbial breeding may be inhibited, mildew of the sweet potato in the cellar can be avoided, mildew in sweet potato may also be activated, sugar consumption is reduced, the sweet potato out of the cellar are used to produce sweet potato sugar, sugar in the sweet potato can be sufficiently extracted, and utilization rate of materials is increased; the protective gas has little impurity and authentic taste.

Description

technical field [0001] The invention relates to the field of sweet potato storage, in particular to a protective gas used for sweet potato storage. Background technique [0002] Sweet potato is the main food crop in my country. It has high calorie content and is rich in vitamins, minerals, and cellulose. Now sweet potato candy and the extended food made from sweet potato are very popular among consumers. In recent years, sweet potato planting in my country The area is stable and rising. In the process of stable and high-yield cultivation of sweet potatoes, safe storage is an important link to ensure production. [0003] Because sweet potatoes have strict requirements on temperature and humidity during storage, mildew is prone to occur if they are not careful, causing economic losses to growers. The existing technology mostly uses the lime powder method for storage in the cellar. However, lime powder generates heat after absorbing water, which is easy to cause environmental da...

AI Technical Summary

Problems solved by technology

[0003] Because sweet potatoes have strict requirements on temperature and humidity during storage, mildew is prone to occur if they are not careful, causing economic losses to growers. The existing technology mostly uses the lime powder method for storage in the cellar. However, lime powder heats up after absorbing water, which is easy to cause environmental pollution. Temperature fluctuations are not conducive to the storage of sweet potatoes, causing mildew and rot during storage

[0004] And as the raw material yam of producing yam candy, keep the sugar content wherein as much as possible in storage process, avoid mildew, produce new pigment, and existing method that adopts cellar storage, the effect of anti-mildew is difficult Control, when the sweet potato is stored for too long, the sugar loss will be faster, resulting in a low extraction rate of sugar in the sweet potato, and a serious waste of raw materials