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Industrialized utilization method of stevia rebaudiana and chlorogenic acid and stevioside

A technology of stevioside and stevia, applied in chemical instruments and methods, sugar derivatives, sugar derivatives, etc., can solve the problems of reduced stevioside production efficiency, reduced stevioside adsorption, increased production costs, and the like, to ensure effective Ingredient content and efficacy, the effect of reducing emissions and reducing water consumption in production

Active Publication Date: 2019-01-25
CHENGUANG BIOTECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is a competitive adsorption between chlorogenic acid and stevioside, which will occupy part of the adsorption sites of stevioside, and the separation method through stevioside adsorption resin will lead to a decrease in the adsorption amount of stevioside, thereby reducing the production efficiency of stevioside and reducing the production cost. raised

Method used

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  • Industrialized utilization method of stevia rebaudiana and chlorogenic acid and stevioside
  • Industrialized utilization method of stevia rebaudiana and chlorogenic acid and stevioside
  • Industrialized utilization method of stevia rebaudiana and chlorogenic acid and stevioside

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Embodiment 1

[0045] This embodiment relates to the extraction method of stevia isochlorogenic acid and steviol glycosides, comprising the following steps:

[0046] (1) Weigh 1 kg of Stevia rebaudiana powder, use 85% ethanol aqueous solution as the extraction solution, and the ratio of solid to liquid is 1:5 / 3.5 / 3.5, and extract three times at 50 ° C, the first extraction time is 1.5h, 2 , 3 extraction times are all 1h, and the combined filtrate is used as the extraction solution.

[0047] (2) Concentrate the extract 10 times in a water bath at 60° C. under a vacuum of -0.08 MPa to recover ethanol.

[0048] (3) Adjust the solid content of the concentrated liquid to 10%, pass through the hydroxyl-modified polar resin to adsorb LX-8 for adsorption, the resin dosage is 2L, the adsorption flow rate is 0.2BV / h, after the adsorption is completed, 2BV is washed with water, and the first BV flow rate is 0.2 BV / h, the flow rate of the second BV is 1BV / h. After washing with water, 2BV of 70% ethano...

Embodiment 2

[0051] This embodiment relates to the extraction method of stevia isochlorogenic acid and steviol glycosides, comprising the following steps:

[0052] (1) Weigh 1 kg of Stevia rebaudiana powder, use 95% methanol aqueous solution as the extraction solution, the ratio of solid to liquid is 1:6 / 4.5, leaching twice at 50°C, the first extraction time is 1.5h, and the second extraction time The extraction time was 1 h, and the combined filtrate was used as the extract.

[0053] (2) The extract was concentrated 10 times in a water bath at 60°C and vacuum -0.08MPa to recover ethanol.

[0054] (3) After adjusting the solid content of the concentrated solution to 8%, it is adsorbed by DA-201 resin, the resin consumption is 2L, the adsorption flow rate is 0.25BV / h, after the adsorption is completed, 2BV is washed with water, and the first BV flow rate is 0.25BV / h, the flow rate of the second BV is 1BV / h. After washing with water, 2BV of 70% ethanol aqueous solution was used for analys...

Embodiment 3

[0057] This embodiment relates to the extraction method of stevia isochlorogenic acid and steviol glycosides, comprising the following steps:

[0058] (1) Weigh 1 kg of Stevia rebaudiana powder, use 75% propanol aqueous solution as the extraction solution, the ratio of solid to liquid is 1:6 / 4.5, and extract twice at 50°C, the first extraction time is 1.5h, and the second The extraction time was 1 h for each time, and the combined filtrate was used as the extract.

[0059] (2) The extract was concentrated 10 times in a water bath at 60° C. and a vacuum of -0.08 MPa to recover ethanol to obtain a concentrated solution.

[0060] (3) After adjusting the solid content of the concentrated solution to 6%, pass it through the hydroxyl-modified polar resin XDA-8, the resin dosage is 2L, the adsorption flow rate is 0.3BV / h, after the adsorption is completed, wash with 2BV water, and the first BV flow rate 0.3BV / h, the second BV flow rate is 1BV / h. After washing with water, 2BV of 70%...

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Abstract

The invention relates to an industrialized method for extracting chlorogenic acid and stevioside of stevia rebaudiana. The method has the main improvement points that firstly, stevia rebaudiana powderis extracted by a high-concentration alcohol solution; then, extraction liquid is adsorbed by polar adsorption resin subjected to hydroxyl modification; chlorogenic acid type substances are obtained;finally, glycoside resin is used for separation to obtain stevioside. The method provided by the invention has the advantages that the hydrolysis of isochlorogenic acid ingredients in the tevia rebaudiana can be prevented; the effective ingredient content and efficiencies of a stevia rebaudiana chlorogenic acid product can be ensured; the successful separation and extraction of the isochlorogenicacid are realized. The method can also realize the effective separation of the stevioside; the production efficiency is improved; the stevioside quality is improved.

Description

technical field [0001] The invention relates to the technical field of industrial utilization of stevia, in particular to an industrial method for synchronously preparing stevia chlorogenic acid and steviol glycosides. Background technique [0002] Stevia rebaudiana (Stevia rebaudiana) is a perennial herb of Compositae, native to Paraguay and Brazil in South America. It is one of the known sugar plants with high sweetness and has become the third natural sugar after sucrose and beet sugar. source. At present, China is the world's largest producer and supplier of steviol glycosides, accounting for more than 80% of the global total. In addition to steviol glycosides, stevia also contains high content of phenols, and these stevia phenols have important biological activities, such as chlorogenic acid, flavonoids, etc. Stevia has been used as sweet tea and medicinal tea in its birthplace for more than 100 years. years of history. [0003] Steviol glycoside is the sweet compone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/732C07C67/56C07H15/256C07H1/08
CPCC07C67/56C07H1/08C07H15/256C07C2601/14C07C69/732
Inventor 田洪连运河徐美利牛志平张建光
Owner CHENGUANG BIOTECH GRP CO LTD
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