China is one of the main production areas of chestnut also the world's largest exporter of chestnut. Currently, China's exports to overseas are mostly unprocessed chestnuts with low prices. According to statistics, as of 2020, the export quantity of Chinese chestnut in China was 38883.8 tons, a year-on-year decrease of 2.25%, the import quantity was 3537.5 tons, a year-on-year decrease of 46.73%; The export quantity of Chinese chestnut January to February 2021 was 5070.3 tons.

Littaro chestnut is rich in functional nutrients such as polysaccharides, amino acids, fatty acids, trace elements, phenols, has a unique aroma sweet glutinous taste, which is deeply loved by consumers. However, chestnuts have a short harvest period, high moisture content in the kernels (accounting for over 50%), are tightly wrapped in dense endothelium fruit shells, making them prone to mold, germination, decay, etc. They are resistant to storage, drying technology is a conventional method of storage processing.

The chestnut raw powder (cooked powder) is prepared by processes such as removing the shell endothelium, (ripening) drying, crushing, which can prolong the storage period ensure that the chestnut is limited by seasons; It can also expand its application in the food industry in the form of chestnut powder. The existing chestnut powder usually needs to be refrigerated, so the shelf life can be up to 2 months. The possible reason is that the Amylose lipid complex is easy to cause poor storage performance of chestnut powder at room temperature, but the specific reason needs further research.

The difference of chestnut varieties will affect the amylose content, lipid content composition of chestnut powder. At present, Chinese chestnut is mainly divided into fried type vegetable type according to gelatinization temperature, starch, water content soluble sugar content. There are as many as 350 Chinese chestnut Landrace in China ( including valuable genetic materials Dandong chestnut in northeast China).

Perhaps based on the actual use of chestnut powder, relevant quality evaluation standards can be established, through a large amount of data analysis, the selection of specialized chestnut powder processing varieties can be carried out more accurately, thereby improving the storage performance of chestnut powder promoting its application.