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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 peels, so as to solve the problems of insufficient use of raw materials and poor quality of citrus essential oils when extracting citrus peels

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
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Effect test

Embodiment 1

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

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

[0070] Add 2% sodium chloride aqueous solution to the recovered liquid until the concentration of ethanol in the recovered liquid is 50%, put the recovered liquid in a separatory funnel, and let it 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. The crude citrus essential oil was left standing at 4°C for 5 days to remove a small amount of impurities in the ...

Embodiment 2

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

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

[0074] Add 5% sodium chloride aqueous solution to the recovered liquid until the ethanol concentration in the recovered liquid is 50%, put the recovered liquid in a separatory funnel, and let it 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 product 12ml. The crude citrus essential oil was left to stand at 5°C for 5 days, and a small amount of impurities...

Embodiment 3

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

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

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

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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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