Method for extracting citrus essential oil and flavonoid compound in citrus peels, citrus peel extract and application thereof

A technology of flavonoids and citrus essential oils, which is applied in the directions of essential oils/spice, medical preparations containing active ingredients, and drug combinations, can solve the problems of underutilized citrus peels, poor citrus essential oils and other problems, and improve raw materials. The effect of utilization, short time and easy operation

Inactive Publication Date: 2018-02-09
YAAN TAISHI BIOLOGICAL SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide a method for extracting citrus essential oils and flavonoids in citrus peel

Method used

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  • Method for extracting citrus essential oil and flavonoid compound in citrus peels, citrus peel extract and application thereof
  • Method for extracting citrus essential oil and flavonoid compound in citrus peels, citrus peel extract and application thereof
  • Method for extracting citrus essential oil and flavonoid compound in citrus peels, citrus peel extract and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0067] Example 1

[0068] The raw citrus peels are produced in Jintang County, Sichuan. The peels are naturally dried and then cut into pieces.

[0069] Take 200 g of orange peel, add 500 mL of 80% ethanol aqueous solution, reflux extraction at 80°C for 2 hours, and collect the filtrate by filtration; after repeated extraction, the filtrate is 800 mL in total. Concentrate with a rotary evaporator until the extract has no alcohol taste to obtain 700 mL of clear recovery solution and 100 mL of concentrated solution.

[0070] Add 2% sodium chloride aqueous solution to the recovered solution to 50% ethanol concentration in the recovered solution. Place the recovered solution in a separatory funnel and let stand for 1 hour. At this time, the oil and water are separated, and the supernatant is collected to obtain the colorless and clear orange essential oil. Crude. Leave the crude citrus essential oil at 4°C for 5 days to remove a small amount of impurities from the lower layer.

Example Embodiment

[0071] 100ml of the concentrated solution was allowed to stand at room temperature for 8 hours, and the precipitate was collected by filtration to obtain flavonoids. Example 2

[0072] The raw citrus peels are produced in Jintang County, Sichuan. The peels are naturally dried and then cut into pieces.

[0073] Take 400 g of orange peel, add 1.6L of 80% ethanol aqueous solution, reflux for 2 hours at 70°C, and collect the filtrate by filtration; after repeated extraction, the filtrate is 3L in total. Concentrate with a rotary evaporator until the extract has no alcohol taste to obtain 2.2L of clear recovery liquid and 400ml of concentrated liquid.

[0074] Add 5% sodium chloride aqueous solution to the recovered solution to 50% ethanol concentration in the recovered solution. Place the recovered solution in a separatory funnel and let stand for 1 hour. At this time, the oil and water are separated, and the supernatant is collected to obtain the colorless and clear orange essential oil...

Example Embodiment

[0076] Example 3

[0077] The raw citrus peels are produced in Jintang County, Sichuan. The peels are naturally dried and then cut into pieces.

[0078] Take 1Kg of orange peel, add 3L of 90% ethanol aqueous solution, reflux and extract at 70°C for 2 hours, and collect the filtrate by filtration; after repeated extraction, the total filtrate is 5.6L. Concentrate with a rotary evaporator until the extract has no alcohol taste, and obtain 4.9L of clear recovery liquid and 650ml of concentrated liquid.

[0079] Add 3% sodium bicarbonate aqueous solution to the recovered liquid to reach the ethanol concentration of 55% in the recovered liquid, and let it stand for 1 hour. At this time, the oil and water are separated, and the supernatant liquid is collected to obtain 290 ml of crude citrus essential oil. Leave the crude citrus essential oil at 5°C for 7 days to remove a small amount of impurities from the lower layer to obtain 286ml citrus essential oil.

[0080] The concentrated solutio...

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Abstract

The invention relates to the technical field of plant ingredient extraction and separation, in particular to a method for extracting citrus essential oil and a flavonoid compound in citrus peels, a citrus peel extract and application thereof. Reflux extraction is conducted on citrus peels by using an extracting agent, and a concentration solution is obtained through concentration; inorganic salt is added in a recovered organic solvent, standing and layering is performed after stirring, and supernatant liquid is collected to obtain the citrus essential oil; after the concentration solution is filtered and cooled, and precipitate is collected to obtain the flavonoid compound. By adopting the extracting method, the essential oil and the flavonoid compound in the citrus peels can be simultaneously extracted out, the raw material utilization rate is improved, and the obtained citrus essential oil is high in quality. In addition, the extracting efficiency is high, the yield is high, operation is easy, consumed time is short, and industrial production is promoted. The extracted citrus essential oil and/or flavonoid compound is used for drugs and can serve as a functional ingredient to play anti-inflammatory, pain-easing, vascular disease improving and anti-cancer effects and the like.

Description

technical field [0001] The invention relates to the technical field of extraction and separation of plant components, and in particular to a method for extracting citrus essential oils and flavonoids from citrus peels, an extract of citrus peels and applications thereof. Background technique [0002] Citrus (Citrus reticulata Blanco), a plant belonging to Rutaceae, citrus peel has high medicinal value, and orange peel also contains thiamine, riboflavin, volatile oil, and flavonoids. The volatile oils in orange peel can irritate the digestive tract. It can increase the secretion of gastric juice, promote gastrointestinal peristalsis, invigorate the stomach and expel wind. Flavonoids have the effect of dilating coronary arteries and increasing coronary blood flow. In addition, orange peel also has anti-inflammatory, anti-ulcer, antibacterial and choleretic effects. Vitamin P in orange peel has a significant effect on arteriosclerosis. [0003] Among them, citrus essential ...

Claims

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Application Information

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IPC IPC(8): A61K36/752A61P29/00A61P9/00A61P35/00C11B9/02A61K131/00
CPCA61K36/752A61K2236/333C11B9/025
Inventor 郭军伟梁林辉杨军王顺尧唐文弢陈彬
Owner YAAN TAISHI BIOLOGICAL SCI & TECH CO LTD
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