Method for extracting starch from jack fruit seed

Abstract

The invention relates to the field of food industries, and discloses a method for extracting starch from a jack fruit seed, which comprises the following steps: washing off outer pectin of a fresh jack fruit seed; adding water, mashing and grinding; adding serrapeptass into ground size mixture to perform enzymolysis for 3-5h; filtering enzymolysis liquid; centrifuging filtering liquid; cleaning the obtained sediments after the filtering liquid is centrifuged with water and 50-80% of edible alcohol sequentially; centrifuging after cleaning to obtain white sediments; drying and smashing the white sediments to obtain the starch. According to the invention, the jack fruit seed is adopted as raw material to extract starch resource in the jack fruit seed, a single enzyme enzymolysis method is used in the extraction method rather than strong base and strong acid; compared with the compound enzymic method, based on the saved extraction cost, the single enzyme enzymolysis cannot break starch structure, doesn't pollute the environment, is simple to operate, and low in cost; the edible alcohol used for cleaning starch can remove residual ions to the greatest extent, so as to improve the purity of the starch, and the method is suitable for starch large-scale production.

Description

technical field

[0001] The invention relates to the field of food industry, in particular to a method for extracting starch from jackfruit seeds. Background technique

[0002] Jackfruit (Artocarpus heterophylls Lam.), also known as wood pineapple and tree pineapple, belongs to the evergreen tree of Moraceae Osmanthus genus. It is a tropical tree species integrating fruit, grain and precious materials. It is native to India in tropical Asia. Widely cultivated, mainly distributed in Southeast Asian countries such as Sri Lanka, Myanmar, Indonesia, and China. In China, it is mainly distributed in Hainan, Guangdong, Guangxi, Yunnan, Fujian and Sichuan, among which Hainan Province is the most planted.

[0003] Generally, the pulp of a jackfruit accounts for about 35% of the total weight, and the seeds and skin dregs account for 20% and 45% respectively. When the pulp is intensively processed, there will inevitably be a large amount of leftovers—seeds and skin dregs, which are use...