Preparing method of onion anthocyanin

A technology of onion flower and anthocyanin, which is applied in the field of onion anthocyanin preparation, can solve problems such as obstruction, low solubility, and damage to product safety, and achieve the effects of large diffusion coefficient, strong solubility, and inhibition of microbial activity

Inactive Publication Date: 2018-05-29
柳州旭至自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Onion (scientific name: Allium cepa), alias bulb onion, onion, jade onion, onion, Dutch onion, Piyazi, etc., is a biennial herb of Liliaceae and Allium. Onions contain anthocyanins, which have important physiological activities Function, can remove free radicals in the body, have anti-oxidation, anti-aging, improve vision, suppress tumors, etc.; also have eye health care, heart rate health care, reduce the risk of cancer, enhance blood vessel strength, anti-inflammatory, swelling and other functions; At present, 1,1,1,2-tetrafluoroethane extraction is mostly used for the extraction of anthocyanins. Although 1,1,1,2-tetrafluoroethane extraction can dissolve anthocyanins, but due to plant cell walls, cell membranes The hindering effect of 1,1,2-tetrafluoroethane is also low, and the use of 1,1,1,2-tetrafluoroethane for direct extraction will cause the use of a large amount of 1,1,1,2-tetrafluoroethane to destroy the safety of the product Therefore, it is necessary to provide a safe and effective preparation method that can improve the anthocyanin yield and extraction rate of onion

Method used

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  • Preparing method of onion anthocyanin
  • Preparing method of onion anthocyanin

Examples

Experimental program
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Effect test

Embodiment 1

[0022] This embodiment provides a method for preparing onion anthocyanins, which includes the following steps:

[0023] (1) Wash the mature onions, chop them after removing impurities, then mix them with water according to the solid-liquid mass ratio of 1:2, put them in a beating machine to make a slurry, and filter the filtrate to obtain onion juice;

[0024] (2) Carry out enzymatic hydrolysis at 35°C according to the added enzyme solution of 0.1g / ml. After enzymatic hydrolysis for 8 hours, take a centrifugal separation and take the supernatant. Use the probiotic solution for probiotic treatment, and then carry out a second centrifugation to take it. The onion clear liquid is obtained from the clear liquid; the centrifugal speed of the centrifugal separation is 2000r / min; the centrifugal time is 15min; the added amount of the probiotics is 0.2g / ml, the probiotics treatment temperature is 23°C, and the treatment time is 18h; The centrifugal speed of the second centrifugation is 400...

Embodiment 2

[0034] This embodiment provides a method for preparing onion anthocyanins, which includes the following steps:

[0035] (1) Wash the mature onion, chop it after removing impurities, then mix it with water according to the solid-liquid mass ratio of 1:4, put it into a beater to make a slurry, and filter the filtrate to obtain onion juice;

[0036] (2) According to the 0.5g / ml added enzyme solution, carry out enzymatic hydrolysis at a temperature of 40°C. After enzymatic hydrolysis for 12 hours, take a centrifugal separation and take the supernatant. Use the probiotic solution for probiotic treatment, and then carry out a second centrifugation to take it. The clear liquor is used to obtain the onion clear liquor; the centrifugal speed of the centrifugal separation is 2500r / min; the centrifugal time is 20min; the added amount of the probiotics is 0.6g / ml, the probiotics treatment temperature is 27°C, and the treatment time is 20h; The centrifugal speed of the second centrifugation is ...

Embodiment 3

[0046] This embodiment provides a method for preparing onion anthocyanins, which includes the following steps:

[0047] (1) Wash the mature onions, chop them after removing impurities, then mix them with water according to the solid-liquid mass ratio of 1:3, put them in a beating machine to make a slurry, and filter the filtrate to obtain onion juice;

[0048] (2) Carry out enzymatic hydrolysis at 37°C according to the added enzyme solution of 0.4g / ml. After enzymatic hydrolysis for 10 hours, take a centrifugal separation and take the supernatant. Use the probiotic solution for probiotic treatment, and then carry out a second centrifugation to take it. The onion clear liquid is obtained from the clear liquid; the centrifugal speed of the centrifugal separation is 2300r / min; the centrifugal time is 17min; the added amount of the probiotics is 0.4g / ml, the probiotics treatment temperature is 25°C, and the treatment time is 19h; The centrifugal speed of the second centrifugation is 45...

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Abstract

The invention relates to the technical field of anthocyaninprocessing, in particular to a preparing method of onion anthocyanin. Biological enzymes and probiotics are utilized to pretreat onions, thebiological enzymes are prepared by mixing pectinase, cellulase and onion pseudomonas cepacialipase, cell walls of the onions can be effectively broken, and separation of internal soluble substances inonion cells is accelerated. The probiotics obtained by screening a culture medium has a high antibacterial capability, the onion cells can be effectively decomposed, and separation of anthocyanin ispromoted; subcritical1,1,1,2-tetrafluoroethane fluidis adopted to conduct extraction, macropore resin further purifies extract, and the yield and the extracting rateof anthocyanin can be safely and effectively increased.

Description

【Technical Field】 [0001] The invention relates to the technical field of anthocyanin processing, in particular to a method for preparing onion anthocyanins. 【Background technique】 [0002] Plant-derived anthocyanins are important natural functional food additives, which are widely used in beverage, candy, pastry, wine and food industries. [0003] Onion (scientific name: Allium cepa), also known as scallion, scallion, green onion, shallot, Holland onion, bark, etc. It is a biennial herbaceous plant in the Liliaceae and Allium genus. Onions contain anthocyanins, which have important physiological activities Function, it can remove free radicals in the body, has the functions of anti-oxidation, anti-aging, improving eyesight, inhibiting tumors, etc.; it also has the functions of eye care, heart rate care, reducing the risk of cancer, enhancing blood vessel strength, anti-inflammatory, and swelling; At present, the extraction of anthocyanins mostly uses 1,1,1,2-tetrafluoroethane extr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/62
CPCC07D311/62
Inventor 黄师
Owner 柳州旭至自动化科技有限公司
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