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Method for increasing carnosic acid content in rosemary fat-soluble antioxidant

A carnosic acid, antioxidant technology, applied in chemical instruments and methods, compositions for inhibiting chemical changes, separation/purification of carboxylic acid compounds, etc., can solve the problem of low carnosic acid content, low boiling point of n-hexane, lipid The problem of high content is to achieve the effect of low production cost, non-toxic odor and high separation efficiency.

Inactive Publication Date: 2018-02-27
HUNAN XINLI BIOLOGICAL SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this method is: 1. the solubility of carnosic acid in normal hexane is low, and the solubility of lipid is high, therefore, the lipid content is high in the product obtained, and carnosic acid content is low; 2. normal hexane boiling point is low, and peculiar smell is big , evaporates quickly at room temperature, is flammable and explosive, and is very dangerous; ③Regeneration of silica gel column requires high temperature treatment, which consumes a lot of energy and causes heavy pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for improving the content of carnosic acid in rosemary fat-soluble antioxidants, the specific process steps are as follows:

[0027] (1) prepare rosemary extract

[0028] Rosemary leaves are packed into a stainless steel extraction tank with a condenser at a ratio of 1:10 (kg / L) according to the ratio of the quality of the rosemary leaves to the volume of the tank. After sealing the extraction tank, open the connecting valve of the condenser, and then introduce saturated steam with a gauge pressure of 0.1MPa and a temperature of 100°C to distill the essential oil for 40 minutes. After the distillation of the essential oil is completed, the steam valve and the connecting valve of the condenser are closed, and the distillation condensate and distillation slag are collected respectively. The collected distillation condensate is used to prepare rosemary essential oil and spirits. For the collected distillation residue, according to the ratio of the mass of rosema...

Embodiment 2

[0040] A method for improving the content of carnosic acid in rosemary fat-soluble antioxidants, the specific process steps are as follows:

[0041] (1) prepare rosemary extract

[0042] Rosemary leaves are packed into a stainless steel extraction tank with a condenser at a ratio of 1:12 (kg / L) according to the ratio of the quality of the rosemary leaves to the volume of the tank. After sealing the extraction tank, open the connecting valve of the condenser, and then introduce saturated steam with a gauge pressure of 0.2 MPa and a temperature of 115°C to distill the essential oil for 80 minutes. After the distillation of the essential oil is completed, the steam valve and the connecting valve of the condenser are closed, and the distillation condensate and distillation slag are collected respectively. The collected distillation condensate is used to prepare rosemary essential oil and spirits. To the collected distillation residue, according to the ratio of the mass of rosema...

Embodiment 3

[0054] A method for improving the content of carnosic acid in rosemary fat-soluble antioxidants, the specific process steps are as follows:

[0055] (1) prepare rosemary extract

[0056] Rosemary leaves are packed into a stainless steel extraction tank with a condenser at a ratio of 1:13 (kg / L) according to the ratio of the quality of the rosemary leaves to the volume of the tank. After sealing the extraction tank, open the connecting valve of the condenser, and then introduce saturated steam with a gauge pressure of 0.25 MPa and a temperature of 130°C to distill the essential oil for 120 minutes. After the distillation of the essential oil is completed, the steam valve and the connecting valve of the condenser are closed, and the distillation condensate and distillation slag are collected respectively. The collected distillation condensate is used to prepare rosemary essential oil and spirits. For the collected distillation residue, according to the ratio of the mass of ros...

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Abstract

A method for improving the carnosic acid content in a rosemary fat-soluble antioxidant belongs to the technical field of plant extraction. The method uses rosemary leaves as a raw material, and comprises the following steps of: preparing a rosemary extract, preparing a carnosic acid crude extract, preparing a carnosic acid refined solution, preparing a carnosic acid eluent, preparing a rosemary extract refined product and preparing a regenerated D370R or D315 anion exchange resin column, thereby preparing a rosemary extract refined product with the carnosic acid content exceeding 90%. In the method provided by the invention, a ceramic membrane is used for separating macromolecular impurities in the rosemary extract, and D370R or D315 weakly basic anion exchange resin is used for separatingand purifying carnosic acid in the rosemary extract, so that the separation specificity is strong, the separation efficiency is high, and the yield is high; the rosemary waste leaves and other byproducts generated in an implementation process are subjected to deep processing treatment, thus realizing comprehensive utilization and environmental protection; and the operation condition is mild, theproduction cost is low, and the prepared product can be widely applied to the fields of food, health products, medicines and the like.

Description

1. Technical field [0001] The invention belongs to the technical field of plant extraction, and in particular relates to a method for increasing the content of carnosic acid in rosemary fat-soluble antioxidants. 2. Background technology [0002] Rosemary extract is a widely used natural antioxidant, widely used in the fields of medicine, health care products, meat products, tobacco, spices, edible oil and cosmetics, and is recognized as the third-generation natural antioxidant. Its consumption is increasing year by year, and the market prospect is good. [0003] The main functional components of rosemary fat-soluble antioxidants are carnosic acid and carnosol. Although the national standard stipulates that the content of carnosic acid and carnosol in rosemary extract is greater than or equal to 10%, it is a qualified product. , 30% and other types of products. However, due to the high content and variety of impurities, the high value-added application of this product is s...

Claims

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Application Information

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IPC IPC(8): C07C51/42C07C62/32C09K15/08
CPCC07C51/42C09K15/08C07C62/32
Inventor 王鹏冉程付微婷孙万万姚萍周志明周小华杨洋江文
Owner HUNAN XINLI BIOLOGICAL SCI & TECH
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