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Fluoride removing technique of animals bone

A technology of animal bone and fluoride, applied in food science, application, food preparation, etc., can solve the problems of deep processing and utilization of bone calcium

Inactive Publication Date: 2010-11-03
DELISI GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bone slag with high fluorine content sets up an insurmountable natural barrier for the extraction and utilization of natural bone calcium, which causes great difficulties for the deep processing and utilization of bone calcium

Method used

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Examples

Experimental program
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Embodiment Construction

[0006] In the present invention, the bone residue after extracting protein and oil from various animal bones is first soaked and hydrolyzed with dilute acid at room temperature or under heating conditions, and the hydrolyzed solution containing calcium and phosphorus is obtained after hydrolyzed, and the pH value of the hydrolyzed solution is adjusted to 2.0-2.6, and add chitosan at a ratio of 5-10mg / l, stir and mix evenly, place it at 55-60°C for 2-3h, let it settle naturally, and then use centrifugation or plate frame Remove the precipitate by filtration and collect the supernatant; put the obtained supernatant on a 122# resin column for exchange and decolorization to obtain a clear and colorless calcium solution, heat the calcium solution to 50-55°C, and use 10% Slowly neutralize the edible alkaline solution until the pH is about 6.5. While neutralizing, stir continuously to make it evenly mixed; after the neutralization is completed, naturally precipitate for 2-3 hours, rem...

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Abstract

The invention discloses a technique for removing fluoride from animal bones, and is characterized in that bone dregs are left after extracting albumen and fat from various animal bones, the bone dregs are immersed in and hydrolyzed by diluted acid at a room temperature or in a heating condition to be natural sediments; then the sediments are removed by a centrifugal method or a plate filtering method and clear solution is collected; the clear solution is purified through the 122# resin column to be exchanged and decolored, and is slowly neutralized with 10% of dietary alkali solution to be pHof about 6.5, white bone calcium sediments are obtained after the neutralization; and after centrifuge dripping and dehydration of the bone calcium sediments, defluorinated bone calcium products are obtained. The technique can ensure deeply processed bone calcium products free of or with reduced fluorinate content, thereby enabling the products to be in compliance with the national standard.

Description

technical field [0001] The invention relates to a process for removing fluoride in animal bones. Background technique [0002] Fluorine and fluorine compounds have a variety of physiological functions, a certain amount of fluorine is beneficial to the human body, and the harm of excessive fluorine is more serious than that of fluorine deficiency. Therefore, the national health department has strict regulations on the content of fluorine in food and food additives. Under normal circumstances, the fluoride content in food additives related to calcium does not exceed 50 / 100,000. The main components in bone dregs are calcium, phosphorus and other trace elements, and fluoride is also within the scope of trace elements. Fluorine is not only relatively active, but 80% of the fluorine in food can be absorbed, and it is easy to accumulate in animals after absorption, especially in bones after combining with calcium in animals. Therefore, it is reasonable that the fluorine content ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/015A23L5/20
Inventor 郑和平
Owner DELISI GROUP
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