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Zinc-rich germinated brown rice enzymolysis powder and preparation method thereof

A technology of germinated brown rice and enzymatic hydrolyzed powder, which is applied in the field of zinc-rich germinated brown rice enzymatically hydrolyzed powder, can solve the problems of low bioavailability of trace elements, low zinc content, nutritional imbalance, etc. Well toned and nutritious effect

Inactive Publication Date: 2019-05-21
无锡新禾创工食品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low zinc content in grains, fruits and vegetables and other foods, and because people pursue refined rice and white flour in their diet, it is more likely to lead to zinc deficiency, and the low bioavailability of trace elements is also an important reason for the imbalance of human nutrition.
FAO / WHO recommends a daily requirement of 15mg per person, and a daily allowable intake of 60mg per person. Zinc in food alone cannot meet the normal needs of the human body

Method used

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  • Zinc-rich germinated brown rice enzymolysis powder and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0051] A preparation method of zinc-rich germinated brown rice enzymatic hydrolysis powder, comprising the steps of:

[0052] Using brown rice as raw material, pick and remove broken rice, heterochromatic rice grains, immature rice and other sundries, add the brown rice to a NaClO solution with a mass concentration of 1.5%, soak it for 20 minutes, and wash it with clean water for 3 times; Add the ratio of solid to liquid 1:2.5 (w / v) to the zinc gluconate aqueous solution with a mass concentration of 1.2%, and germinate at 35°C for 30 hours. After the reaction is completed, rinse the germinated brown rice twice with clean water and drain; Add water to the obtained germinated brown rice, then use a refining equipment to grind it into a slurry, allow the slurry to pass through an 80-mesh sieve, and obtain a slurry with a concentration of 22% by weight of dry germinated rice, and then use citric acid The aqueous solution adjusts the pH value of the slurry to 4.0 to obtain a germin...

Embodiment 2

[0054] A preparation method of zinc-rich germinated brown rice enzymatic hydrolysis powder, comprising the steps of:

[0055] Using brown rice as raw material, pick and remove broken rice, heterochromatic rice grains, immature rice and other sundries, add the brown rice to a NaClO solution with a mass concentration of 1.3%, soak it for 16 minutes, and wash it with clean water for 3 times; The ratio of solid to liquid is 1: 2 (w / v), and the mass concentration is 1.3% in zinc gluconate aqueous solution, and germinated for 30 hours at 35°C. After the reaction is finished, rinse the germinated brown rice twice with clear water and drain; Add water to the obtained germinated brown rice, then use a refining equipment to grind it into a slurry, allow the slurry to pass through an 80-mesh sieve to obtain a slurry with a concentration of 20% by weight of dry germinated rice, and then use citric acid to The aqueous solution adjusts the pH value of the slurry to 4.3 to obtain a germinate...

Embodiment 3

[0057] A preparation method of zinc-rich germinated brown rice enzymatic hydrolysis powder, comprising the steps of:

[0058] Using brown rice as raw material, pick and remove broken rice, heterochromatic rice grains, immature rice and other sundries, add the brown rice to a NaClO solution with a mass concentration of 1.0%, soak it for 12 minutes, and wash it with clean water for 3 times; The ratio of solid to liquid is 1:3 (w / v) and added to the zinc gluconate aqueous solution with a mass concentration of 1.3%, and germinated for 30 hours at 35°C. After the reaction, rinse the germinated brown rice twice with clear water and drain; Add water to the obtained germinated brown rice, then use a refining equipment to grind it into a slurry, allow the slurry to pass through an 80-mesh sieve to obtain a slurry with a concentration of 20% by weight of dry germinated rice, and then use citric acid to The aqueous solution adjusts the pH value of the slurry to 4.5 to obtain a germinated...

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Abstract

The invention relates to a method for preparing zinc-rich germinated brown rice enzymolysis powder by taking brown rice as a raw material, which comprises the steps of pretreating the raw material, germinating with zinc-rich, pulping and mixing, carrying out enzymolysis, enzyme inactivating, filtrating and homogenizating, preparing powder, sterilizing, packaging and the like. The zinc enrichmentrate of brown rice is improved by adding zinc gluconate into germinating solution; the viscosity of brown rice slurry in the enzymolysis process is reduced by adopting a enzymolysis technology, the enzymolysis time is reduced, and the enzymolysis reaction is more sufficient and effective; the fineness of enzymolysis powder is ensured by adopting a powder preparation process of spray drying, and prepared zinc-rich brown rice enzymolysis powder has good solubility and palatability and is a good zinc supplement source. The preparation method has the advantages of relatively mild reaction conditions, low equipment investment and low energy consumption, and the zinc content in the prepared zinc-rich germinated brown rice enzymolysis powder is 380-420 mg / kg, the content of gamma-aminobutyric acid is 300-330 mg / kg. The preparation method greatly improves the added value of deep processing of brown rice products, and also meets the requirement of domestic markets on zinc-rich foods.

Description

technical field [0001] The invention relates to a preparation method of enzymatic hydrolysis powder, in particular to a preparation method of zinc-rich germinated brown rice enzymatic hydrolysis powder. Background technique [0002] Because brown rice retains the embryo, it is a complete and vital seed. Germination of brown rice is essentially a process of biochemical reactions. Brown rice contains a lot of enzymes, such as amylase, maltase, cellulase, hemicellulase, protease, lipase, phytase, etc. When the water content of brown rice increases to a certain level during the germination process, it will Part of the storage material turns into sol, and at the same time, the enzyme changes from the bound state to the free state, and under the action of the enzyme, the water-insoluble material in the grain is converted into a material that can be used by the embryo. Brown rice is cultivated at a certain temperature and humidity, and when it germinates to a certain extent, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L7/104A23L7/152A01G31/00A23P10/40A23L33/00
Inventor 不公告发明人
Owner 无锡新禾创工食品科技有限公司