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Extraction method for vitamin C in actinidia arguta

A technology for extracting kiwifruit and its extraction method, which is applied in the field of extracting vitamin C from kiwifruit, which can solve the problems of low purity of the final product, low extraction efficiency, complex process, etc., and achieve low dosage, low extraction cost and simple technical scheme Effect

Inactive Publication Date: 2015-12-23
DALIAN NATIONALITIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the methods for extracting vitamin C mainly include solvent extraction, ultrasonic-assisted extraction and microbial fermentation, etc., but these methods for extracting vitamin C have complex processes, high costs, low extraction efficiency, and low purity of the final product. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Clean the kiwi fruit with boiled and cooled water;

[0027] (2) Weigh 500g of Actinidia jujuba and 5g of citric acid respectively, prepare citric acid into a 2wt% aqueous solution, add it to Actinidia jujube, and then use a tissue homogenizer for homogenization treatment: every interval of 3min, processing for 5min , processed 6 times in total to obtain 750g of jujube kiwifruit pulp;

[0028] (3) Weigh 37.5g of cellulase, use 0.01mol / L sodium metaphosphate buffer to prepare a 1wt% solution, add it to the kiwi fruit pulp obtained in step (2), and place it under vacuum at 4°C Next, stir for 9 hours to obtain a mixed solution;

[0029] (4) Ultrafiltration is performed on the mixed solution obtained in step (3) using a polypropylene hollow fiber filter membrane with a filter hole size between 0.1-0.2 μm to obtain a filtrate;

[0030] (5) Concentrating the filtrate obtained in step (4) under reduced pressure in a vacuum, and then freeze-drying in a vacuum to obtain the...

Embodiment 2

[0032] (1) Clean the kiwi fruit with boiled and cooled water;

[0033] (2) Weigh 500g of Actinidia jujuba and 10g of citric acid respectively, prepare citric acid into a 2wt% aqueous solution, add it to Actinidia jujube, and then use a tissue homogenizer for homogenization treatment: every interval of 3min, processing for 5min , and processed 6 times in total to obtain 1000g of jujube kiwifruit pulp;

[0034] (3) Weigh 45g of cellulase, use 0.01mol / L sodium metaphosphate buffer to prepare a 1wt% solution, add it to the kiwi fruit pulp obtained in step (2), and place it in a vacuum at 4°C , stirred for 9 hours to obtain a mixed solution;

[0035] (4) Ultrafiltration is performed on the mixed solution obtained in step (3) using a polypropylene hollow fiber filter membrane with a filter hole size between 0.1-0.2 μm to obtain a filtrate;

[0036] (5) Concentrating the filtrate obtained in step (4) under reduced pressure in a vacuum, and then freeze-drying in a vacuum to obtain t...

Embodiment 3

[0038] (1) Clean the kiwi fruit with boiled and cooled water;

[0039] (2) Weigh 500g of Actinidia jujuba and 15g of citric acid respectively, prepare citric acid into a 2wt% aqueous solution, add it to Actinidia jujube, and then use a tissue homogenizer for homogenization treatment: every interval of 3min, processing for 5min , and processed 6 times in total to obtain 1250g of jujube kiwifruit pulp;

[0040] (3) Weigh 50g of cellulase, use 0.01mol / L sodium metaphosphate buffer to prepare a 1wt% solution, add it to the kiwi fruit pulp obtained in step (2), and place it in a vacuum at 4°C , stirred for 9 hours to obtain a mixed solution;

[0041] (4) Ultrafiltration is performed on the mixed solution obtained in step (3) using a polypropylene hollow fiber filter membrane with a filter hole size between 0.1-0.2 μm to obtain a filtrate;

[0042] (5) Concentrating the filtrate obtained in step (4) under reduced pressure in a vacuum, and then freeze-drying in a vacuum to obtain t...

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Abstract

The invention discloses an extraction method for vitamin C in actinidia arguta, and belongs to the technical field of nutritional supplements. The method comprises the following steps: (1) cleaning actinidia arguta with boiled and cooled water; (2) adding a citric acid solution to the actinidia arguta, and then carrying out homogenate treatment by a tissue homogenizer to obtain actinidia arguta pulp; (3) adding a cellulose solution to the actinidia arguta pulp, stirring the actinidia arguta pulp in a vacuum condition at 4 DEG C for 8-10 hours to obtain a mixed solution; (4) carrying out ultra-filtration on the mixed solution by virtue of a hollow fiber filter membrane to obtain filtrate; and (5) carrying out vacuum decompression concentration on the filtrate, and then carrying out freeze drying lyophilization to obtain the vitamin C in the actinidia arguta. The extraction method for the vitamin C in the actinidia arguta is simple in technical scheme, low in cost and easy to popularize; the extraction rate is over 95%; and the purity of the final product Vc is over 48%.

Description

technical field [0001] The invention belongs to the technical field of nutritional supplements, and in particular relates to a method for extracting vitamin C from kiwi fruit. Background technique [0002] Soft date kiwi fruit, commonly known as soft date, is one of the famous wild berries in Changbai Mountains. It is a perennial vine woody plant that mainly grows in deep forests. It is a wild green fruit. Its peel is green and smooth, the flesh is green, tender and juicy, unique in flavor, sweet and sour, rich in nutrition, contains a variety of antioxidant substances, can play the role of anti-oxidation, clearing heat and reducing fire, and can effectively prevent and treat constipation and Hemorrhoids; In addition, it also has the effects of immune regulation and blood fat reduction. Jujube kiwifruit also contains a large amount of vitamin C, calcium, phosphorus, iron, magnesium and other trace elements and a variety of amino acids. Its vitamin C content is as high as 45...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D307/62A23L1/302
CPCA23V2002/00C07D307/62A23V2250/21A23V2250/708
Inventor 郭鹏
Owner DALIAN NATIONALITIES UNIVERSITY
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