Citric acid and its preparation method

A technology of citric acid and calcium carbonate, applied in the field of food processing, can solve problems such as complex extraction methods, and achieve the effects of improving farmers' income and having broad market prospects.

Inactive Publication Date: 2012-02-01
耿庆水
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, its extraction methods are relatively complicated, requiring certain experimental equipment and specialized personnel.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] A kind of citric acid and preparation method thereof, it is characterized in that: carry out as follows:

[0013] (1) Clarification and filtration of raw materials: orange juice and plum juice contain a lot of pectin and impurities, which need to be clarified to promote the precipitation of impurities, and then press filter with a filter press;

[0014] (2) Neutralization: When heating orange juice and plum juice to 75°C, add calcium carbonate milk slurry and continue heating for 2 hours, until the solution turns green, the neutralization reaction is completed, and calcium fruitate is precipitated after standing;

[0015] (3) Desalting: Wash the calcium fruit acid with water, heat to 70-80°C, and dry it for later use;

[0016] (4) Acid decolorization: the calcium citrate slurry is heated to 60-70°C, boiled for 3 hours, left to settle, and the supernatant is citric acid solution;

[0017] (5) After concentration and crystallization, centrifuge and dry, and dry at 75°C u...

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PUM

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Abstract

The invention relates to citric acid and a preparation method, which belongs to the food processing technical field. The invention is characterized in that citric acid uses the fruits of lemon, orange, plum, apricot, peach and the like, and the raw materials are carried out the processes of clearing, filtering, neutralizing, decolouring, concentrating and the like to obtain a citric acid product. The citric acid can be widely utilized in the food processing industry, is an important food organic acidity, and is an additive for beverage, candy and caned food, the market prospect is wide and the citric acid processing is capable of raising the income of the peasants.

Description

technical field [0001] The invention relates to citric acid and a preparation method thereof, belonging to the technical field of food processing. Background technique [0002] Citric acid exists in lemons, citrus, plums, plums, peaches and other fruits in nature, and immature fruits contain more acid, which can be widely used in food, medicine, daily chemical and other industries. At present, its extraction methods are relatively complicated, requiring certain experimental equipment and specialized personnel. Contents of the invention [0003] The purpose of the present invention is to overcome above-mentioned weak point of prior art, provide a kind of citric acid and preparation method thereof, obtain citric acid product through steps such as raw material clarification filtration, neutralization, decolorization, concentration. The citric acid can be widely used in the food processing industry, is an important food organic acid, and is an additive for beverages, candies,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C59/265C07C51/42C07C51/487
Inventor 耿庆水
Owner 耿庆水
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