Method for producing neohesperidin dihydrochalcone

A new hesperidin dihydrochalcone and square technology, which is applied in the field of extracting hesperidin and essential oils, can solve the problems of large solvent loss, long process, complex process, etc., and achieve the goal of increasing output and yield Effect

Active Publication Date: 2012-12-12
遂川万力电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process of this method is long, and petroleum ether, a chemical raw material, is needed in the extraction process. Because petroleum ether is used in a large amount and is volatile, the solvent loss in the production process is large, and the economic benefit is not high.
Moreover, the peel absorbs a large amount of organic solvents, which will cause inconvenience to the subsequent pectin extraction.
Journal "Journal of Shaoguan University", Improvement of the experiment of extracting essential oils from citrus peels, September 2004, discloses a method for extracting essential oils from tangerine pee...

Method used

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  • Method for producing neohesperidin dihydrochalcone
  • Method for producing neohesperidin dihydrochalcone
  • Method for producing neohesperidin dihydrochalcone

Examples

Experimental program
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Embodiment 1

[0024] A method for extracting essential oil and neohesperidin dihydrochalcone from orange peel, comprising the following steps:

[0025] 1) Select fresh orange peels without mildew, and put them in a cool, ventilated and dry place for later use;

[0026] 2) Soak 100 g of the orange peel in step 1) in 1 L of calcium carbonate saturated aqueous solution for 24 hours, remove and rinse;

[0027] 3) Cut the orange peel into 5mm square pieces, soak in 70% ethanol for 30 minutes, and remove the ethanol by rotary evaporation under reduced pressure;

[0028] 4) Irradiate under ultraviolet light for 15 minutes, send it into a screw press, add 100ml of pH regulator when pressing, the components of pH regulator are: 0.2mol / L NaCl and 0.1mol / L NaHCO 3 ;

[0029] 5) Take the filtrate after filtering the extruded product, and take out the filter residue for the subsequent production process of other products; according to the volume ratio of filtrate: sodium sulfate solution, add a sodium...

Embodiment 2

[0038] A method for extracting essential oil and neohesperidin dihydrochalcone from orange peel, comprising the following steps:

[0039] 1 Select fresh orange peels without mildew, and put them in a cool, ventilated and dry place for later use;

[0040] 2 Take 100 g of orange peels from step 1) and soak them in 1 L of calcium carbonate saturated aqueous solution for 24 hours, remove and rinse;

[0041] 3 Cut the orange peel into 5mm square pieces, soak in 70% ethanol for 40 minutes, and remove the ethanol by rotary evaporation under reduced pressure;

[0042] 4 Irradiate under ultraviolet light for 30 minutes, send it into the screw press, add 100ml of pH regulator when pressing, the components of the pH regulator are: 0.2mol / L NaCl and 0.1mol / L NaHCO 3 ;

[0043] ) to get the filtrate after filtering the squeezed matter, and take out the filter residue for the subsequent production process of other products; according to the filtrate: the sodium sulfate solution is a volum...

Embodiment 3

[0052] 1, by the essential oil component analysis that embodiment 1 extracts:

[0053] The components of essential oils were analyzed by GC-MS technology: D-limonene 81.17%, terpinene 6.27%, myrcene 2.96%, linalool 2.468%, 2-thujene 1.28%, terpinolene 1.046%, and other minor components.

[0054] 2. Qualitative identification of hesperidin

[0055] Take about 10 mg of the hesperidin sample of Example 1, add 20 ml of ethanol to heat to dissolve, shake and let cool, add a small amount of magnesium powder, slowly add 4 ml of hydrochloric acid dropwise along the tube wall, purple-red, hesperidin belongs to flavonoids, Most flavonoids, flavonols, dihydroflavones and dihydroflavonols are orange-red to purple-red, and the B ring has OH or OCH 3 When replacing, the color deepens accordingly. This reaction presents the characteristics of specific color development of flavonoids. Easily soluble in pyridine or dimethylformamide, insoluble in water, in line with the solubility properti...

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Abstract

The invention relates to a process technology for extracting essential oil and neohesperidin dihydrochalcone from plants, in particular to a preparation process technology for extracting essential oil and neohesperidin dihydrochalcone from orange peels. The process technology is improved and optimized based on a conventional extraction method in the prior art, the steps of ethanol treatment, ultraviolet radiation, macroporous resin adsorption and the like are adopted audaciously, various reaction parameters are combined and optimized effectively, output efficiency of the essential oil and the neohesperidin dihydrochalcone is greatly improved, and the process technology is wide in application prospect.

Description

technical field [0001] The present invention relates to a technology for extracting hesperidin and essential oil from plants, in particular to a process for extracting neohesperidin dihydrochalcone (alias: neohesperidin dihydrochalcone) and essential oil from orange peels preparation technology. Background technique [0002] Citrus peels account for 20% of the whole fruit weight, and China's annual output of citrus peels is about 3 million tons. Citrus peel is a renewable biological resource, most of which are not used in China but discarded, resulting in a lot of waste and pollution to the environment. If this resource is comprehensively utilized, it will turn waste into wealth and greatly improve the economic benefits of the citrus industry. In addition to water, cellulose, and lignin, citrus peels are also rich in pigments, pectin, hesperidin, and essential oils. Therefore, one of the main ways of citrus peel utilization is around the extraction of its contained compon...

Claims

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Application Information

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IPC IPC(8): C07H15/203C07H1/00C11B9/02C08B37/06
Inventor 高伟曹红星陈广春夏阳张永宾
Owner 遂川万力电子科技有限公司
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