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Method for extracting pectin from tobacco waste by using ultrasonic and organic acid

A tobacco waste and organic acid technology, applied in the field of tobacco field waste recycling and reuse, can solve the problems of heavy environmental pollution and high equipment cost requirements, and achieve the effect of increasing yield and easy control of extraction process

Inactive Publication Date: 2015-06-17
CHINA TOBACCO CHUANYU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional extraction technology of pectin in tobacco is mainly inorganic acid extraction, and the extraction agents are mainly nitric acid, hydrochloric acid, etc., because of their strong acidity and corrosiveness, the cost requirements for equipment are relatively high, and the environmental pollution is also serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for extracting pectin from tobacco waste by utilizing ultrasonic waves and organic acids, comprising the following steps:

[0026] a. Tobacco waste is put into an electric constant temperature blast drying oven to dry at 50° C., crushed into powder and sieved to make the size uniform, preferably the size of tobacco waste powder sieved is 60 to 100 mesh sieve.

[0027] b. Put ultrapure water in the beaker, add citric acid crystals to prepare an organic acid solution, adjust the pH of the solution to be 0.5 to 2.5, then put the tobacco waste powder into it, and stir it continuously with a glass rod after putting the tobacco waste powder into it. In order to avoid agglomerated powder that has not been dissolved during ultrasonic treatment.

[0028] c. Put the beaker into an ultrasonic instrument with an ultrasonic power of 500 to 1000W and process it for 30 to 60 minutes. After obtaining the turbid solution, filter it with suction and remove the filter residue to ...

Embodiment 2

[0031] a. Clean up the discarded tobacco stems in the field, put them into an electric heating constant temperature blast drying oven at 50°C for drying, screening, and removing impurities, then crush them into powder and pass through a 60-mesh sieve to make them uniform in size.

[0032] b. Fill the beaker with 250ml of ultra-pure water, slowly add citric acid crystals, stir evenly, adjust the pH of the solution to 2.5 with precision test paper, then put in the processed tobacco waste powder, stir well with a glass rod to make it even Distributed in organic solution.

[0033] c. Put the beaker under the ultrasonic instrument so that the liquid level in the ultrasonic instrument exceeds the liquid level of the beaker solution, then adjust the power of the ultrasonic instrument to 500W, and the treatment time lasts for 30 minutes. After obtaining the turbid solution, filter it with suction, and remove the filter residue to obtain a crude pectin extract. Finally, add 3% activate...

Embodiment 3

[0036] a. Clean up the discarded tobacco stems in the field, put them in an electric heating constant temperature blast drying oven at 50°C for drying, screening, and removing impurities, then crush them into powder and pass through an 80-mesh sieve to make them uniform in size.

[0037] b. Fill the beaker with 250ml of ultra-pure water, slowly add citric acid crystals, stir evenly, use precision test paper to adjust the pH of the solution to 1.5, then put in the treated tobacco waste powder, stir well with a glass rod to make it even Distributed in organic solution.

[0038] c. Put the beaker under the ultrasonic instrument so that the liquid level in the ultrasonic instrument exceeds the liquid level of the beaker solution, then adjust the power of the ultrasonic instrument to 800W, and the treatment time lasts for 40 minutes. After obtaining the turbid solution, filter it with suction, and remove the filter residue to obtain a crude pectin extract. Finally, add 4% activated...

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PUM

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Abstract

The invention discloses a method for extracting pectin from tobacco waste by using ultrasonic and organic acid, which comprises the following steps: drying the tobacco waste, pulverizing into powder, and screening; preparing an organic acid solution from water and citric acid crystal, regulating the pH value of the solution to 0.5-2.5, and adding the tobacco waste powder; treating in an ultrasonic instrument with the ultrasonic power of 500-1000W for 30-60 minutes to obtain a turbid liquid, carrying out vacuum filtration, removing the filter residue to obtain a pectin crude extracting solution, adding activated carbon for decolorization, and cooling for later use; and washing with anhydrous ethanol to obtain white pectin, carrying out vacuum drying on the white pectin to obtain offwhite pectin, and pulverizing to obtain the product. The method has the advantages of higher pectin yield and controllable extraction process, and is milder and more effective than the traditional pectin extraction process by using inorganic acid.

Description

technical field [0001] The invention relates to the technical field of tobacco field waste recovery and reuse, in particular to a chemical process method for extracting tobacco waste by using an ultrasonic wave-organic acid method. Background technique [0002] Tobacco waste refers to other parts of tobacco plants, such as tobacco stems, tobacco roots, fireworks, tobacco branches, axillary buds, top leaves and foot leaves removed from leaves, except for industrially applicable tobacco leaves. A large number of discarded in the field or stored moldy. my country is a big tobacco planting country, and hundreds of thousands of tons of tobacco waste like this are wasted every year, resulting in the loss of resources and environmental pollution. The comprehensive utilization of tobacco was proposed by the State Monopoly Bureau very early. The two sessions in 2015 put forward higher requirements for the environment-friendly manufacturing industry. The reuse of tobacco waste needs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06
Inventor 肖克毅戴亚谭兰兰施丰成薛芳寇明钰沈怡汪长国
Owner CHINA TOBACCO CHUANYU IND
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