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Metal-enzyme preparation co-catalysis method for improving the leaching of solanesol in waste tobacco

A technology of solanesol and enzyme preparation, which is applied in the field of metal-enzyme preparation co-catalysis to improve the leaching of solanesol in waste tobacco, can solve the problem of increasing the difficulty of impurity removal, reducing the extraction rate of solanesol, and reducing production output and other issues to achieve the effect of shortening the service life of production equipment, reducing hidden dangers of production safety, and avoiding corrosion

Active Publication Date: 2020-11-03
CHONGQING TECH & BUSINESS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this method are: (1) This method uses supercritical carbon dioxide to dissolve solanesol in tobacco leaves, but at the same time it also enhances the dissolution of other components in tobacco leaves, because the diversity of dissolved components increases the removal of impurities Therefore, a three-stage extraction process is adopted, thereby increasing production equipment and increasing production costs; (2) This method adopts adsorbents with different functions in each stage of the three-stage extraction, which increases production raw materials and increases production costs; (3) The method two Molecular sieves, aluminum oxide or activated carbon with adsorption function are used as adsorbents in the first-stage extraction. Although the dewaxing, degreasing and impurity removal are completed, solanesol will also be adsorbed, which reduces the extraction rate of solanesol in the third-stage extraction. Reduce production output; (4) The production of this method requires the use of supercritical technology, and the extraction temperature in the process is higher than 60°C, which requires not only special production equipment, but also external heat source equipment, which further increases production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of metal-enzyme co-catalysis method that improves the leaching of solanesol in waste tobacco The concrete steps are as follows:

[0023] (1) Raw material pretreatment

[0024] Wash 40g of discarded tobacco leaves, dry them, place them in an oven, bake them in an oven at 100°C for 30 minutes, take them out, crush them with a pulverizer, and then sieve them through a 60-mesh molecular sieve to obtain tobacco leaves with a particle size of less than 60 mesh. Pack in separate bags and set aside.

[0025] (2) Metal-enzyme co-catalyzed reaction

[0026]After the first (1) step is completed, the ratio of raw material quality (g) after the first step (1): catalyst quality (g): water volume (ml) ratio is 1: 0.035: 10, at ( 1) Add catalyst and water to the pretreated raw material, stir evenly, then use sulfuric acid or sodium hydroxide dilute solution to adjust the pH value of the system to 7, and then place the mixed solution after adjusting the pH value in a shaker , ...

Embodiment 2

[0032] A method for improving the metal-enzyme preparation co-catalysis method of solanesol leaching in waste tobacco, with embodiment 1, wherein:

[0033] In the step (1), the selected tobacco mesh is 20 mesh, the oven temperature is 85°C, and the drying time is 90 minutes.

[0034] In step (2), the ratio of mass (g) of tobacco solid waste: mass (g) of catalyst: volume (ml) of water is 1:0.0125:5. Hydrochloric acid solution was used to adjust the pH of the system to 4, and the temperature of the enzymatic hydrolysis water bath was 25°C. Enzymatically activate the tobacco base material for 8h. The metal-enzyme dosage ratio is metal catalyst (g): enzyme preparation (g) = 1:1.6; the enzyme activity ratio of the enzyme preparation is xylanase: cellulase: laccase = 2:47:51 complex enzyme.

[0035] In step (3), the mass of the pretreated tobacco solid waste: the volume ratio of the composite extractant solution is 1:8, and the volume ratio of the composite extractant ethanol:met...

Embodiment 3

[0038] A method for improving the metal-enzyme preparation co-catalysis method of solanesol leaching in waste tobacco, with embodiment 1, wherein:

[0039] In the step (1), the selected tobacco mesh is 120 mesh, the oven temperature is 110°C, and the drying time is 30 minutes.

[0040] In step (2), the ratio of mass (g) of tobacco solid waste: mass (g) of catalyst: volume (ml) of water is 1:0.075:15. A hydrochloric acid solution was used to adjust the pH of the system to 6, and the temperature of the water bath was 45°C. Enzymatically activate the tobacco base material for 4h. The metal-enzyme dosage ratio is metal catalyst (g): enzyme preparation (g) = 1:10; the enzyme activity ratio of the enzyme preparation is xylanase: cellulase: laccase = 2:34:64 compound enzyme.

[0041] In step (3), the mass of the pretreated tobacco solid waste: the volume ratio of the composite extractant solution is 1:12, and the volume ratio of the composite extractant ethanol:methanol is 1:9. T...

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Abstract

The invention provides a metal and enzymic preparation co-catalysis method for improving solanesol infiltration in abandoned tobacco and belongs to the technical field of solanesol extraction. According to the method, tobacco solid waste serves as the raw material, through the dual synergetic catalysis effect of a mixed enzyme used for catalytic hydrolysis of tobacco plant structures and a manganese catalyst capable of improving the catalytic activity of enzymic preparations, the product is obtained through the simple process including raw material preprocessing, metal-enzymic preparation co-catalysis reaction, ultrasonic coprocessing and solanesol product preparation, and the dissolution rate and extraction rate of the product are increased. According to the method, the raw materials are wide in source, and the method has the advantages that waste is fully used, the production cost is low, operation is easy, the method is environmentally friendly, the prepared solanesol product is high in extraction rate and purity and biological activity is complete. The method can be widely used for infiltration and extraction of solanesol, nicotine, pectin, cellulose and other natural products from the tobacco solid waste, and effectively achieves resource re-utilization of the abandoned tobacco.

Description

technical field [0001] The invention belongs to the technical field of solanesol extraction, and in particular relates to a metal-enzyme preparation co-catalysis method for improving the leaching of solanesol in waste tobacco. Background technique [0002] Solanesol is a three-sesquiterpene alcohol, which is naturally present in tobacco leaves (0.3% to 3% of the total weight), potato leaves (about 1.5%), mulberry leaves (about 0.1%), etc. Cancer biological activity, often used as an important raw material for drug synthesis, used in: ①synthesis of ubiquinone compounds such as coenzyme Q10; ②synthesis of drugs for the treatment of tumors; ③synthesis of anti-ulcer drugs; ④synthesis of drugs for the treatment of cardiovascular and cerebrovascular diseases; Viral drugs have broad application prospects. The existing solanesol extraction technologies mainly include solvent extraction, supercritical extraction, polymeric co-precipitation, fresh homogenate extraction and molecular ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C29/74C07C33/02C12P19/14
CPCC07C29/74C12P19/14C07C33/02
Inventor 王星敏魏星跃胥江河龙良俊张露月
Owner CHONGQING TECH & BUSINESS UNIV