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A kind of cinnamon leaf residue extract and its preparation method and application

A cinnamon leaf and extract technology is applied in the field of cinnamon leaf residue extract and preparation thereof, can solve the problems of pollution, waste of natural resources, environment, single use, etc., and achieves the effects of high extraction efficiency, improved vitality, and good total reducing ability

Active Publication Date: 2022-03-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of cinnamon leaves is relatively single, and it is often used to extract volatile oil
However, the extraction rate of cinnamon essential oil is only 0.8%-1.2%, and a large amount of residue remains after extraction. The residue is usually used as fuel or directly discarded, resulting in waste of natural resources and environmental pollution.
At present, domestic and foreign research on cinnamon leaves mainly focuses on volatile oils, and there are few studies on the development and utilization of cinnamon leaf residues. The existing technology uses ultrasonic-assisted extraction to extract polyphenols and flavonoids in cinnamon leaf residues. The mass fraction of total polyphenols is only about 10%, and the mass fraction of total flavonoids is only about 15% (Cheng Xian, Bi Liangwu, Zeng Weixing, et al. Extraction, purification and antioxidant activity of active ingredients in cinnamon steamed oil residue[ J]. Forest Products Chemistry and Industry, 2020, 040(002): 109-116.)

Method used

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  • A kind of cinnamon leaf residue extract and its preparation method and application
  • A kind of cinnamon leaf residue extract and its preparation method and application
  • A kind of cinnamon leaf residue extract and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The optimization of extraction conditions of cinnamon leaf residue, the specific steps are as follows:

[0029] (1) Choose different conditions to extract cinnamon leaf residue

[0030] Dissolve 10g of cinnamon leaf residue powder in 60%, 70%, 80%, and 90% ethanol solution, extract under reflux twice at 70°C according to the ratio of solid to liquid 1:16, each time for 2h, then concentrate and freeze by rotary evaporator Obtain cinnamon leaf residue extract after drying;

[0031] 10g of cinnamon leaf residue powder was dissolved in 80% ethanol solution, at extraction temperatures of 50°C, 60°C, 70°C, and 80°C, reflux extraction twice according to the ratio of solid to liquid at 1:16, each time for 2h, and then passed through a rotary evaporator Concentrate and freeze-dry to obtain cinnamon leaf residue extract;

[0032] 10g of cinnamon leaf residue powder was dissolved in 80% ethanol solution, and extracted under reflux at 60°C for 2 times at 60°C according to the mat...

Embodiment 2

[0039] A kind of preparation method of cinnamon leaf residue extract of the present embodiment, concrete steps are as follows:

[0040] (1) After pulverizing the cinnamon leaf residue after extracting the volatile oil, pass through a 50-mesh sieve to obtain the cinnamon leaf residue powder;

[0041] (2) Adding ethanol with a volume fraction of 80% to the cinnamon leaf residue powder obtained in step (1), the solid-liquid ratio is 1:16, reflux extraction at 60° C. for 2 hours each time, and combining the extracts;

[0042] (3) concentrating the extract obtained in step (2) by rotary evaporation under reduced pressure at 40° C. to obtain a concentrated solution;

[0043] (4) Freeze-drying the concentrate obtained in step (3) to obtain the cinnamon leaf residue extract.

[0044] The yield of the cinnamon leaf residue extract finally obtained in this embodiment was 11.6%.

Embodiment 3

[0046] The total phenolic content of the cinnamon leaf residue extract was determined by the folin phenol colorimetric method, and the specific steps were as follows:

[0047] (1) prepare cinnamon leaf residue extract according to the method in embodiment 2;

[0048] (2) Take 100 μL of 80% ethanol to prepare extracts containing different concentrations of cinnamon leaf residue extracts (0.1mg / mL, 0.5mg / mL, 1mg / mL, 2mg / mL), add 0.5mL of folinol reagent and 6.9 mL of water, mix well, and react in the dark for 5 minutes, then add 1.5mL of 10% Na 2 CO 3 Solution, after mixing, react in the dark at room temperature for 2h, and measure its absorbance at 765nm. Use different concentrations of gallic acid (20, 40, 60, 80, 100 μg / mL) as the standard substance, draw the gallic acid standard curve with the absorbance as the ordinate and the mass concentration as the abscissa, and its regression equation is y=0.0015x-0.0144( R 2 = 0.9993). The total phenolic content of cinnamon leaf re...

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Abstract

The invention belongs to the technical field of natural extracts, and discloses a cinnamon leaf residue extract, a preparation method and application thereof. Cinnamon leaf residue after extracting volatile oil is crushed and sieved to obtain cinnamon leaf residue powder, and then ethanol is added for reflux extraction, the ethanol volume fraction is 60% to 90%, and the ratio of cinnamon leaf residue powder to ethanol is 1:8 to 1 : 40, the temperature of reflux extraction is 50~90 ℃, the extract is concentrated by rotary evaporation under reduced pressure, the temperature of rotary evaporation under reduced pressure is 35~50 ℃, and the cinnamon leaf residue extract is obtained after freeze-drying. The cinnamon leaf residue extract prepared by the invention has strong anti-oxidation activity, anti-aging activity and anti-inflammatory activity, and can be used to prepare anti-oxidation, anti-aging, anti-inflammatory drugs or functional foods.

Description

technical field [0001] The invention belongs to the technical field of natural extracts, and in particular relates to a cinnamon leaf residue extract and a preparation method and application thereof. Background technique [0002] Cinnamomum cassia (Cinnamomum cassia) is a tropical and subtropical evergreen tree of the genus Lauraceae. Its origin is China, and it is cultivated on a large scale in Guangdong, Guangxi and other places in my country. Cinnamon bark is mainly used as medicinal materials and spices. At present, the degree of development and utilization is high, and it has high application value. The use of cinnamon leaves is relatively single, and it is often used to extract volatile oil. However, the extraction rate of cinnamon essential oil is only 0.8%-1.2%, and a large amount of residue remains after extraction. The residue is usually used as fuel or directly discarded, resulting in waste of natural resources and environmental pollution. At present, domestic a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/54A61P39/06A61P29/00A23L33/105A61K127/00
CPCA61K36/54A61P39/06A61P29/00A23L33/105A61K2236/333A61K2236/39A61K2236/51A23V2002/00A23V2200/30A23V2200/302A23V2250/21
Inventor 吴虹吴睿晴宗敏华
Owner SOUTH CHINA UNIV OF TECH
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