Production process of high-purity solid phytic acid

A solid phytic acid, production process technology, applied in the direction of bulk chemical production, chemical instruments and methods, organic chemistry, etc., can solve the problem of easy discoloration of liquid phytic acid, and achieve less impurities, good oxidation resistance, and high purity Effect

Inactive Publication Date: 2013-03-13
桐乡鑫洋食品添加剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of existing air filters, the present invention provides a high-purity solid phytic acid production process, which solves the problem that liquid phytic acid is easy to change color during storage, and greatly improves the purity of phytic acid, which is convenient for storage and transportation , reducing transportation costs

Method used

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Embodiment Construction

[0018] The present invention is specifically described below through specific embodiments and formulations, and the present invention includes, but is not limited to the following examples.

[0019] Process plan: adjust the pH value of defatted rice bran or corn meal to 3 with 6% hydrochloric acid, soak and quench for 6-8 hours, add lime milk to the filtrate to neutralize, adjust the pH value to 6~6.5 with NaOH, filter and discard the filtrate, and the filter residue is plant Calcium magnesium sodium crude product; add calcium magnesium sodium phytate crude product to 8 times the amount of water, adjust the pH value to 2.5 with hydrochloric acid solution, and wait until it is completely dissolved, add 4% activated carbon for decolorization, filtration, and sugar removal; add NaOH to the filtrate to adjust the pH value To 3-4.5, the protein is precipitated, and the protein is separated by filtration to obtain the filtrate;

[0020] The resulting filtrate is exchanged and washed...

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Abstract

The invention discloses a production process of high-purity solid phytic acid. Degreased rice bran or corn meal is adopted, hydrochloric acid is used for soaking and leaching filtrate, filtering is carried out after NaOH or KOH is used for adjusting the pH value, and high-purity solid phytic acid is obtained by virtue of an anion exchange column, a cation exchange column and crystallization. According to the production process disclosed by the invention, technological innovation is realized, the purity of the prepared phytic acid can be up to more than 98%, and the problem that liquid phytic acid is darkened in a storage process can be effectively solved. The solid phytic acid produced by virtue of the production process is high in purity and white in colour, contains less impurities and is one of good additives in the food industry, and the solid phytic acid product has good oxidation resistance and is safe and non-toxic, so that the solid phytic acid is widely used as food preservative and antiseptic.

Description

technical field [0001] The invention relates to a method for manufacturing a food additive, in particular to a high-purity solid phytic acid production process. Background technique [0002] Phytic acid is an important organophosphorus additive with unique physiological functions and chemical properties. It is widely used in food, medicine, daily chemical industry, metal processing, textile industry, polymer industry and plastic processing industry. [0003] In view of the wide range of uses and high economic value of phytic acid, countries all over the world are increasing their research and development efforts. Most of the phytic acid sold on the market is liquid phytic acid, and pure natural liquid phytic acid is not easy to store. There are proteins, polysaccharides, natural pigments, latent pigments, iron ions and other substances in liquid phytic acid, which make the color of phytic acid change from light yellow to dark brown during storage, which affects the appearan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/117
CPCY02P20/54
Inventor 王少林张红
Owner 桐乡鑫洋食品添加剂有限公司
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