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Vitex negundo linn leaf extract and preparation method as well as application thereof

A technology of leaf extract and total flavonoids, applied in the field of Vitex japonica leaf extract and its preparation, can solve the problems of insufficient extraction rate and reduced purity of flavonoids, so as to promote the absorption of oxygen, prevent and skin pigmentation, and rich in vitamin content Effect

Active Publication Date: 2015-05-06
GUANGZHOU SALIAI STEMCELL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual work, the extraction rate of alkaline water extraction is mostly lower than that of organic solvent extraction.
Moreover, since there are other compounds with phenolic hydroxyl groups in the leaves of Vitex Vitex, if the conditions are not suitable for alkaline water extraction, the compounds with phenolic hydroxyl groups will be dissolved and extracted, resulting in a decrease in the purity of the flavonoids.

Method used

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  • Vitex negundo linn leaf extract and preparation method as well as application thereof
  • Vitex negundo linn leaf extract and preparation method as well as application thereof
  • Vitex negundo linn leaf extract and preparation method as well as application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0038] The preparation method of embodiment 1~10 Vitex chrysanthemum leaf extract

[0039]Gather 250g of fresh Vitex japonica leaves, wash them with clear water, dry at room temperature and drain the water, put the vitex vitex leaves drained into the ultrasonic extraction pot, the ultrasonic power is 80W, adjust the ultrasonic frequency, add 10% dilute alkaline water (mass fraction is 10%) Sodium carbonate solution) to adjust different material-liquid ratios, extract, sieve, and discard the residue, and the obtained filtrate is dried in a vacuum oven at a temperature of 60° C. for 12 hours, and powdered to obtain Vitex chrysanthemum leaf extract. The experimental conditions are shown in Table 1:

[0040] Table 1 Example 1~10 extraction temperature, ultrasonic frequency, extraction time, solid-liquid ratio

[0041]

[0042] The results show that the preparation method of the Vitex chrysanthemum leaf extract provided by the invention can ensure the extraction rate to be abov...

Embodiment 11

[0043] Embodiment 11 The present invention obtains the quality identification of Vitex chrysanthemum leaf extract

[0044] Detect the total flavonoid content in the Vitex Vitex Folium extract that the present invention makes, and the method is as follows:

[0045] 1. Qualitative detection experiment of flavonoids

[0046] Preliminary qualitative detection of flavonoids based on their display reactions

[0047] 1.1 Hydrochloric acid-aluminum powder experiment: slight yellow-green foam reaction, the foam intensifies after heating;

[0048] 1.2 Zirconium salt-citric acid reaction experiment: sample 0.1mg+10ml methanol solution+1ml2%ZrOC12→yellow→2% citric acid methanol solution→yellow complex;

[0049] 1.3 1% aluminum chloride experiment: the generated complex is light yellow, showing yellow fluorescence under ultraviolet light (λmax=415nm);

[0050] 2. Establishment and drawing of rutin standard curve

[0051] Using rutin as the reference substance to measure the content of ...

Embodiment 12

[0062] The preparation of embodiment 12 skin care composition

[0063] Mix and mash 150g of aloe, 25g of peony and 100mL of water, sieve 3 times with 1 volume of water, collect the filtrate to obtain product A; grind the filter residue and sieve twice with 50ml of water, collect the filtrate to obtain product B;

[0064] Squeeze 23g of lemon and 25g of onion, add 50ml of water to sieve twice, collect the filtrate to obtain product C;

[0065] Mix 5g wolfberry, 15g corn, 10g soybean, and 5g angelica, and grind them into powder to obtain product D;

[0066] Mix product A, product B, product C, and product D, add 1 times the volume of water and sieve twice, collect the filtrate, adjust the pH value to 6.5-7.0, and combine it with 18.148 g of Vitex japonica leaf extract and avocado extract obtained in Example 10 20g of the product and 10g of glycerin were heated at 80°C for 2h, cooled to 4°C and kept for 60min, and the skin care composition was prepared after it was in the form o...

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Abstract

The invention relates to the technical field of plant active material extraction, and particularly relates to a vitex negundo linn leaf extract and preparation method as well as application thereof. General flavone content in the vitex negundo linn leaf extract is not less than 82.5%, organic is not used in the preparation method of the vitex negundo linn leaf extract, and on the premise of guaranteeing purity of flavonoid compounds, extraction efficiency is improved. Experiment shows that, when being used in skin care products, the vitex negundo linn leaf extract cannot cause adverse reaction, and enables skin to be more shiny and elastic.

Description

technical field [0001] The invention relates to the technical field of extracting plant active substances, in particular to a Vitex japonica leaf extract and its preparation method and application. Background technique [0002] Vitex negundo L. (Vitex negundo L.), also known as Vitex negundo L., is a shrub of the genus Vitex / Vitex of the family Verbenaceae, and its roots, leaves and seeds are used as medicine. "Materia Medica Qiu Yuan" records that Vitex japonica has the viciousness of washing ringworm and scabies. "Guizhou Folk Prescription Collection" records that Vitex japonica can cure dysentery and bloody stranguria; diuresis can cure edema and jaundice. Because the leaves can form a gel after processing, traditional people use this characteristic and its pharmacological effects to make jelly and eat it to cool off the heat. The analysis results of modern instruments show that Vitex japonica leaves are rich in nutrients: protein, vitamin C, crude fat, crude fiber, sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/97A61Q19/02A61Q19/08A61Q19/10A61P17/00
Inventor 陈海佳王一飞葛啸虎黎娟妹戴国胜
Owner GUANGZHOU SALIAI STEMCELL SCI & TECH CO LTD
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