Method for overwintering storage of jerusalem artichoke tubers

Abstract

The invention discloses a jerusalem artichoke tuber overwintering storage method which comprises the following steps: (1) harvesting jerusalem artichoke before first frost, pre-treating tubers, airing epidermis, and removing injured tubers with diseases and insect pests; (2) putting the pretreated jerusalem artichoke tubers into a wide-hole woven bag, wherein 10% of space is reserved in the bag; (3) storing the jerusalem artichoke tubers under the soil layer with the temperature change of-4.3-0 DEG C according to different temperature changes of soil layers in different regions; and (4) when the ground temperature rises to 0 DEG C, timely transferring the jerusalem artichoke into a cellar or a refrigeration house below 4 DEG C, and keeping the relative humidity at 92-95%. The method is simple to operate, can prolong the storage period of jerusalem artichoke tubers at low cost under the condition that the jerusalem artichoke inulin content is required to be relatively high, and is an economical, safe and effective jerusalem artichoke storage and fresh-keeping method.

Description

technical field [0001] The invention belongs to the technical field of Jerusalem artichoke tuber storage, and more specifically relates to a method for overwintering storage of Jerusalem artichoke tubers. Background technique [0002] Jerusalem artichoke (Helianthus tuberosus L.), also known as Jerusalem artichoke, ginger not spicy, belongs to Compositae, and sunflower is a new type of perennial high-density energy plant. Its tubers are rich in inulin, potassium, selenium, vitamins, flavonoids and other nutrients. Unique, with very good edible, feeding and medicinal value. Jerusalem artichoke likes a cool and dry climate. It has developed on a large scale in Inner Mongolia, Gansu, Qinghai, Jiangsu and other places in my country. The planting area has increased year by year. The straw can be processed into high-quality feed, and the tubers can be used to produce inulin, fructooligosaccharides or fuel ethanol. [0003] Northwest my country has a high altitude and a cool clima...

AI Technical Summary

Problems solved by technology

At present, the storage technology used in the production of Jerusalem artichoke mostly refers to the storage conditions of potatoes (temperature 1-5°C). The loss rate of potatoes is about 30%, and the loss rate of Jerusalem artichoke is 30-50%, which also brings huge economic losses to the production of Jerusalem artichoke.

Since the storage methods used in production are mostly a summary of production experience, different crops can only refer to methods of similar or similar crops, lacking specific theoretical support, it is difficult to achieve the ideal effect of Jerusalem artichoke storage

Images