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Method for preparing astringent persimmon powder with high micromolecule tannin content

A technology of persimmon powder and small molecules, which is applied in the field of preparation of astringent persimmon powder, can solve the problems of weak metal ion adsorption and low tannin content, and achieve the effects of preventing oxidation and decomposition, high tannin content and good quality

Active Publication Date: 2013-04-10
广州慈康生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention patent application CN101328194 discloses a kind of persimmon powder and its production process; after the persimmon juice is squeezed, the juice is subjected to enzymolysis, filtration, enzyme elimination, concentration, and vacuum freeze-drying to obtain a tannin content of 1% to 99%. The powder, the tannin content of small molecules in this powder is very small, and the adsorption effect on metal ions is not strong

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Choose seven or eight ripe astringent persimmons, wash, crush, and squeeze the juice, heat the squeezed juice to about 50°C with a casing heater, put it into a 3-ton sanitary storage tank; weigh 300g of commercial pectinase, 360g Apple amylase, 300g papain enzyme, activate the enzyme, then add it to a 3-ton sanitary storage tank, stir evenly, and carry out enzymolysis; after keeping it for 30 minutes, add 300g citric acid and 200ml phytic acid to carry out Color protection; after 40 minutes of planting, filter the persimmon juice after enzymatic hydrolysis and color protection with a plate and frame filter press; use an ultra-high temperature instant sterilizer (UHT) to sterilize the persimmon juice, and the temperature is controlled at 121- Put the sterilized juice at 125°C into a 3-ton airtight storage tank, and vacuum degas it with a water flow vacuum pump to obtain raw persimmon juice. Use a 0.22μm microfiltration membrane to perform microfiltration operation on per...

Embodiment 2

[0020] Choose seven or eight ripe astringent persimmons, wash, crush, and squeeze the juice, heat the squeezed juice to about 45°C with a casing heater, put it into a 3-ton sanitary storage tank; weigh 240g of pectinase, 360g of Apple amylase, 360g of papain enzyme, activate the enzyme, then add it to a 3-ton sanitary storage tank, stir evenly, and carry out enzymolysis; after keeping it for 35 minutes, add 200g of citric acid and 250ml of phytic acid for protection Color protection; after 20 minutes of planting, the persimmon juice after enzymatic hydrolysis and color protection is filtered with a plate and frame filter press; the filtered persimmon juice is sterilized with an ultra-high temperature instantaneous sterilization (UHT) machine, and the temperature is controlled at 121 -125°C, put the sterilized juice into a 3-ton airtight storage tank, and vacuum degas it with a water-flow vacuum pump to obtain raw persimmon juice. Use a 0.22μm microfiltration membrane to perfor...

Embodiment 3

[0022] Choose seven or eight mature astringent persimmons, wash, crush, and squeeze the juice, heat the squeezed juice to about 55°C with a casing heater, and put it into a 5-ton sanitary storage tank; weigh 7500g of pectinase, 500g of Apple amylase, 1000g of papain enzyme, activate the enzyme, then add it to a 5-ton sanitary storage tank, stir evenly, and carry out enzymatic hydrolysis; after keeping for 40 minutes, add 1000g of citric acid and 500ml of phytic acid for protection After 20 minutes of planting, filter the persimmon juice after enzymatic hydrolysis and color protection with a plate and frame filter press; use an ultra-high temperature instant sterilization (UHT) machine to sterilize the persimmon juice, and the temperature is controlled at 121-125 ℃, the sterilized juice is poured into a 5-ton airtight storage tank, and vacuum degassed with a water flow vacuum pump to obtain persimmon juice. Use a 0.22μm microfiltration membrane to perform microfiltration operat...

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Abstract

The invention discloses a method for preparing astringent persimmon powder with high micromolecule tannin content. The method comprises the following steps of: washing, smashing and juicing almost ripe persimmons, and performing enzymolysis, color protection, filtration, enzyme deactivation, sterilization and vacuum degassing, thus obtaining original persimmon juice; performing microfiltration onthe original persimmon juice by use of a microfiltration film with the porosity of 0.22 mu m, performing primary ultrafiltration by use of an ultrafiltration film capable of retaining the molecular weight of 20,000, performing secondary ultrafiltration by use of an ultrafiltration film capable of retaining the molecular weight of 1,000, and collecting a filtrate obtained by the secondary ultrafiltration; and directly or further concentrating the filtrate, freezing and drying, thus obtaining the astringent persimmon powder with high micromolecule tannin content. Compared with the prior art, the method has the advantages that materials in all working procedures are at the temperature less than 60 DEG C, and most active substances in the persimmons are retained; and the astringent persimmon powder is high in quality and high in micromolecule tannin content, can be used as an anti-radiation, anti-oxidization and adsorption material, and is wide in application prospect.

Description

technical field [0001] The invention relates to extraction of plant components, in particular to a preparation method of astringent persimmon powder with high content of small molecule tannin. Background technique [0002] Astringent persimmon fruit, also known as red fruit, is a fruit with high nutritional value. It enjoys the reputation of "sacred fruit among fruits". It is widely planted in my country and is an important way for farmers to increase their income. Astringent persimmon fruit contains about 2.0% astringent persimmon tannins, and also contains carbohydrates, proteins, essential amino acids, trace elements, multivitamins, organic acids, etc., which can inhibit human lymphocytic leukemia, lower blood pressure, and remove free radicals in the body. , Adsorption of rare metal elements and other functions. Astringent persimmon tannins, in fresh green fruits, the content of small molecule tannins (molecular weight 1700) is relatively high, and the content of conden...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/212A23L1/29A23P1/06A23L19/00A23L33/00
Inventor 李桂银周治德王仲民操良丽崔健周怀营
Owner 广州慈康生物科技有限公司
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