Method for decoloring mesona chinensis benth acid polysaccharide

The technology of acid polysaccharide and jelly grass is applied in the field of extraction, separation and purification of biological active substances of natural products, and can solve the problems of complicated operation, low polysaccharide yield, large loss of active polysaccharide components, etc., and achieves mild operating conditions and high polysaccharide yield. , the effect of short decolorization period

Active Publication Date: 2019-01-11
NANCHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The adsorption method mostly uses kaolin or activated carbon as the adsorbent, which is cumbersome to operate, and the adsorbent can adsorb the target product, resulting in low polysaccharide yield and low purity, and a large loss of active polysaccharide components, which is difficult to meet market demand. Ultrasound- Hydrogen peroxide combined with macroporous resin to remove polysaccharide pigment from jelly jelly has not been reported in the literature

Method used

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  • Method for decoloring mesona chinensis benth acid polysaccharide
  • Method for decoloring mesona chinensis benth acid polysaccharide
  • Method for decoloring mesona chinensis benth acid polysaccharide

Examples

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Embodiment 1

[0026] Decolorization:

[0027] Clean the jelly grass, remove weeds, rotting leaves, etc., crush the raw jelly jelly to 20 meshes for use, take 100g jelly jelly, add 80% ethanol that is 8 times the weight of the jelly jelly for the first time, soak for 12 hours, and then soak for 12 hours for the second time Soak in 5 times the amount of 80% alcohol for 6 hours, put the jelly jelly in a fume hood, wait for the ethanol to volatilize completely, and then move it to a 40°C oven for drying to obtain the defatted jelly jelly powder. Extract the jelly jelly above with 0.5% sodium carbonate aqueous solution with a solid-liquid ratio of 1:20 at 80°C for 2 hours, cool slightly after leaching, filter with gauze while it is hot, centrifuge the filtrate, and collect The filtrate and the filter residue were repeatedly extracted twice, and the filtrates were combined. The extract was concentrated in vacuo with a rotary evaporator, reduced in pressure and reduced in temperature to 1 / 3 volum...

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Abstract

The invention discloses a method for decoloring mesona chinensis benth acid polysaccharide by combining ultrasound-hydrogen peroxide with macroporous resin. The method comprises the following nine steps: pretreating raw materials, removing impurities by ethanol, carrying out water extraction by weak alkali, carrying out enzymolysis on crude polysaccharide, carrying out ultrasound-hydrogen peroxidedecolorization on a mesona chinensis benth polysaccharide concentrated solution, carrying out decolorization by an AKTA-macroporous resin chromatographic system, dialysing, centrifuging and thus obtaining the polysaccharide. The method for decoloring the mesona chinensis benth acid polysaccharide, disclosed by the invention, has the beneficial effects of being simple and convenient to operate, mild in operating conditions, short in decolorization period, high in polysaccharide yield and low in comprehensive cost.

Description

technical field [0001] The patent of the invention relates to a decolorization method of jelly jelly oxalic acid polysaccharide extracted from jelly jelly, which belongs to the field of extraction, separation and purification of biological active substances of natural products, including extraction, filtrate pretreatment, decolorization and other related technologies. Background technique [0002] Mesona chinesis, also known as fairy grass, fairy grass, fairy jelly, firewood, is an annual herb of the family Lamiaceae, and has many years of edible and medicinal history in my country. Jellygrass is mainly distributed in China and Southeast Asian countries such as India, Vietnam, and Myanmar. In my country, Fujian Province and Guangdong Province have the largest cultivation area, and are widely distributed in Jiangxi, Guangdong, Fujian, Guangxi, Yunnan and other places. As a dual-purpose plant resource for medicine and food, jelly jelly has high nutritional value and potential ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 谢建华林丽华黄莉鑫
Owner NANCHANG UNIV
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