Method for extracting starch from jack fruit seed

A technology of jackfruit seeds and starch, which is applied in the field of starch extraction, can solve the problems of expanding the influence of starch on production and increasing production costs, and achieves the effects of low cost, cost saving, and optimized process steps

Active Publication Date: 2013-10-02
海南兴科热带作物工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the compound enzyme method can improve the quality and yield of starch, the various enzymes used in the extraction process will undoubtedly increase the production cost and have a significant impact on the expansion of starch production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: extract starch from jackfruit seed

[0025] Pectin removal: Weigh 100kg jackfruit seeds, wash off the pectin substance on the outer layer of fresh jackfruit seeds with tap water, and wash until it is not sticky;

[0026] Beating: Add 200L of water to the pectin-removed seeds and beat them, and use a colloid mill to further refine them for 5 minutes;

[0027] Enzyme treatment: adjust the slurry temperature to 50°C and add 2.01 kg of serrapeptase (13,000 U / g, Genencor) for enzymatic hydrolysis for 4 hours;

[0028] Filtration: Pass the enzymatic liquid through a 200-mesh automatic filter press to remove seed fibers and some proteins;

[0029] Centrifugation: the filtrate is separated from protein and starch by controlling the speed of 3000r / min in a centrifuge, and the precipitate is coarse starch;

[0030] Washing: washing the precipitate with water to remove soluble sugar;

[0031] Alcohol washing: the precipitate was washed twice with 50% edible ethano...

Embodiment 2

[0035] Embodiment 2: extract starch from jackfruit seed

[0036] Pectin removal: take 50kg of jackfruit seeds, wash off the pectin substance on the outer layer of fresh jackfruit seeds with tap water, and wash until it is not sticky;

[0037] Beating: Add 200L of water to the pectin-removed seeds and beat them, and use a colloid mill to further refine them for 5 minutes;

[0038] Enzyme treatment: adjust the slurry temperature to 50°C and add 1.73 kg of serrapeptase (13,000 U / g, Genencor) for enzymatic hydrolysis for 5 hours;

[0039] Filtration: Pass the enzymatic liquid through a 160-mesh automatic filter press to remove seed fibers and some proteins;

[0040] Centrifugation: the filtrate is separated from protein and starch by controlling the speed of 3000r / min in a centrifuge, and the precipitate is coarse starch;

[0041] Washing: washing the precipitate with water to remove soluble sugar;

[0042] Alcohol washing: the precipitate was washed twice with 80% edible ethan...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04
Inventor 张彦军初众谭乐和徐飞卢少芳谷风林贺书珍
Owner 海南兴科热带作物工程技术有限公司
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