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Method for extracting anti-oxidation active substance from overgrown leaves of Chinese toon

A technology of antioxidant activity and extraction method, which is applied in the field of natural product extraction, can solve the problems such as the lack of an extraction process of antioxidant active substances, and achieve the effect of simple process

Inactive Publication Date: 2008-01-09
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] At present, domestic and foreign studies on the old leaves of Toona sinensis are only found in the invention patent application - the extraction method of flavonoids and saponins from the old leaves of Toona sinensis (patent application number: 200510069895) and there is no relevant research on the extraction process of the antioxidant active substances in the old leaves of Toona sinensis to report

Method used

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Embodiment Construction

[0017] The present invention is further described in detail through the following examples, but the technical content described in this example is illustrative rather than limiting, and should not limit the protection scope of the present invention accordingly.

[0018] The steps of the method for extracting antioxidant active substances from the old leaves of Toona sinensis involved in the present invention are as follows:

[0019] (1). Drying and pulverizing the old leaves of Chinese toon in a cool place, and crossing a 40-mesh sieve to form Chinese toon leaf powder;

[0020] (2). Weigh 100g of Chinese toon leaf powder, add 1000mL of 60% ethanol solution to the Chinese toon leaf powder, extract at 70°C for 4 hours, repeat the extraction for 3 times, combine the extracts and concentrate them to 1000mL, and then absorb on the macropores Resin column purification, the macroporous adsorption resin model can be AB-8, and the sample loading method adopts dynamic sample loading; us...

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Abstract

The present invention relates to a method for extracting antioxidant active substance by utilizing old Chinese toon leaf. Said extration method includes the following several steps: adopting ethyl alcohol to make extraction, utilizing macroporous adsorbing resin AB-8 to make purification, concentrating eluent and drying so as to obtain the invented extract with strong antioxidative activity. The invented Chinese toon antioxidant active substance product can be used as antioxidant for food, and can be extensively used in the functional food industry, pharmaceutical industry ad cosmetic industry, etc.

Description

technical field [0001] The invention belongs to the field of natural product extraction, in particular to a method for extracting antioxidant active substances from old leaves of Toona sinensis. Background technique [0002] Chinese toon is a perennial woody plant belonging to the family Meliaceae. Its scientific name is Toona sinensis (A.Juss.) Roem. It is native to the central region of my country. There are seven kinds of Chinese toon, red oiled toon, green oiled toon and moss toon, which have been cultivated in my country for more than 2,000 years. Toon wood is often used to make all kinds of high-end furniture and planted as ornamental trees. [0003] The whole plant of Toona sinensis can be used, and it is a tree species with high economic value. Chinese toon sprouts are rich in nutrition, comprehensive and balanced, rich in protein, amino acid, various volatile oils, multivitamins and trace elements, and can be eaten directly or made into various series of flavor foo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/58A61K8/97A61P39/06A23L3/34A23L3/3472A23K1/00C05F7/00A61K127/00A23K40/00
CPCY02A40/20
Inventor 王昌禄江慎华陈志强陈勉华王玉荣刘常金周庆礼夏廉法
Owner TIANJIN UNIV OF SCI & TECH
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