Antioxidant substance extracted from branches, barks and leaves of eucommia bark leaved forest and extraction method thereof

An antioxidant substance, Eucommia ulmoides leaf technology, applied in the direction of antivirus, animal feed, food science, etc., can solve the problem of antioxidant active substances that have not been reported, and achieve the effect of short time, avoiding damage, and low temperature

Inactive Publication Date: 2010-12-15
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the process of extracting antioxidant active substances from the bark and leaves of Eucommia ulmoides leaves

Method used

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  • Antioxidant substance extracted from branches, barks and leaves of eucommia bark leaved forest and extraction method thereof
  • Antioxidant substance extracted from branches, barks and leaves of eucommia bark leaved forest and extraction method thereof
  • Antioxidant substance extracted from branches, barks and leaves of eucommia bark leaved forest and extraction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The steps of the method for extracting antioxidant active substances from the model bark and leaves of Eucommia ulmoides leaf forest are as follows:

[0026] (1) Pre-treatment: the fresh leaves of Eucommia ulmoides, after cleaning and removing impurities, are greened, baked at 120°C for 3 minutes, and dried for later use; the bark of Eucommia ulmoides is peeled and dried for later use, and the moisture content is ≤ 10%;

[0027] (2) Pulverization: get a certain amount of eucommia bark and dry leaves through the above-mentioned pretreatment, and mechanically crush and pulverize into flocs;

[0028] (3) Ultrasonic extraction: 40% ethanol is used as solvent, and the mass volume ratio of crushed raw materials and 40% ethanol is 1: 10, the crushed raw materials are soaked for 60 min, then put into an ultrasonic extractor, and the extraction time is 40 min. ~50min, ultrasonic frequency 40kHz, extraction twice;

[0029] (4) Filtration: filter the mixture after the ultrasonic ...

Embodiment 2

[0032] (1) Pre-treatment: the fresh leaves of Eucommia ulmoides are removed and cleaned, then greened, baked at 120°C for 3 minutes, and dried for later use; the bark of Eucommia ulmoides is peeled and dried for later use, with a moisture content of ≤ 10%;

[0033] (2) Pulverization: get a certain amount of eucommia bark and dry leaves through the above-mentioned pretreatment, and mechanically crush and pulverize into flocs;

[0034] (3) Ultrasonic extraction: use deionized water as solvent, and according to the mass volume ratio of crushed raw materials and 40% ethanol as 1:8, soak the crushed raw materials for 60min, then put them into an ultrasonic extractor, and extract for 40 minutes ~50min, ultrasonic frequency 40kHz, extraction twice;

[0035] (4) Filtration: filter the mixture after the ultrasonic extraction with a high-speed centrifuge, the rotating speed is 2000rpm, 15min;

[0036] (5) Concentration: Combine and filter the extracts, and concentrate under reduced pre...

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Abstract

The invention relates to a method for extracting an antioxidant substance used as an antioxidant in the branches, barks and leaves of eucommia bark leaved forest from a eucommia bark leaved forest cultivation mode. The method comprises the technical schemes of: crushing a certain amount of branches, barks and dried leaves in the eucommia bark leaved forest mode; adding the crushed mixture in an ultrasonic extractor; adding a solvent and leaching for two times; and filtering the solvent, reducing the pressure and condensing to obtain extract or carrying out vacuum freezing and drying to obtain a powdery product. The ultrasonic extraction method has simple process and less investment, is suitable for large-scale production and lays a foundation for developing the antioxidant functional food. The prepared eucommia bark antioxidant active substance product is applied to the medicines, health-care products, food antioxidants, feed addictives and other industries; and extract residues can be used for continuously extracting eucommia rubber so as to realize the comprehensive utilization.

Description

Technical field: [0001] The invention belongs to the field of natural product extraction, and more specifically relates to an antioxidant active substance extracted from bark and leaves in Eucommia leaf forest model and an extraction method thereof. Background technique: [0002] Eucommia ulmoides Oliver (Eucommia ulmoides Oliver) is a very ancient tree species unique to China. It is known as a "living fossil plant". It is a rare and precious Chinese medicinal tree species unique to China. effect. At present, the active ingredients of Eucommia ulmoides are extracted from the leaves or bark of Eucommia arborescens. The arbor model is tall and difficult to collect leaves. The yield of bark is very low, and its growth cycle is long. Once the bark is peeled, there is a possibility of deforestation. , Industrialization development is more difficult. The invention uses the bark and leaves of the eucommia leaf forest model as raw materials, which is easy to pick and peel the leav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/46A61K9/14A61K9/06A23L1/28A23L1/30A23K1/14A61P39/06A61K127/00A61K129/00A23K10/30A23L33/105
Inventor 苏印泉马养民苑子夜张强杨芳霞李秀红丁奋霞徐金娟秦琳
Owner NORTHWEST A & F UNIV
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