Technology for ultrasonic-assisted extraction of konjac glucomannan through response surface method optimization

A technology of konjac glucomannan and response surface method, which is applied in the field of response surface method to optimize the ultrasonic-assisted extraction of konjac glucomannan, which can solve the problem of reducing the physical and chemical properties of KGM, affecting human health, and affecting the stability of konjac glucomannan, etc. problems, to achieve the effect of improved bactericidal effect, easy operation, and immune to physical and chemical properties

Inactive Publication Date: 2017-10-27
BAISE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, many scholars at home and abroad have studied the purification method and application of konjac powder, but there are obvious defects, such as the addition of heavy metal elements in the purification, which seriously affects the health of the human body; the use of acidic alcohol and phosphoric acid affects the konjac grape. The stability of mannan properties, etc., and the extraction is affected by various parameters such as extraction temperature and solid-liquid ratio, which greatly reduces the physical and chemical properties of KGM

Method used

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  • Technology for ultrasonic-assisted extraction of konjac glucomannan through response surface method optimization
  • Technology for ultrasonic-assisted extraction of konjac glucomannan through response surface method optimization
  • Technology for ultrasonic-assisted extraction of konjac glucomannan through response surface method optimization

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Effect test

Embodiment 1

[0036] A response surface method optimizes a process for ultrasonic-assisted extraction of konjac glucomannan, which specifically includes the following steps:

[0037] (1) Raw material processing: Clean the fresh konjac bulbs, remove the roots, buds and skins, cut them into slices, soak them in fungicide for 1 day, rinse them with sterile water, pick up and drain the surface water, put Put into 40 DEG C oven and dry until moisture is less than 6%, then pulverize, cross 90 mesh sieves, obtain konjac flour, set aside;

[0038] The bactericide is dissolving colaconone and citric acid in water to form a mixed solution with a mass concentration of 0.03%, wherein the mass ratio of colaconone and citric acid is 1:3;

[0039] (2) Degreasing: Weigh the above-mentioned konjac flour and wrap it with a filter paper tube, put it into a degreasing instrument, degrease it in a constant temperature water bath oscillator at 40°C for 2h, filter to obtain a filter residue, and dry the filter re...

Embodiment 2

[0052] A response surface method optimizes a process for ultrasonic-assisted extraction of konjac glucomannan, which specifically includes the following steps:

[0053] (1) Raw material processing: Clean the fresh konjac bulbs, remove the roots, buds and skins, cut them into slices, put them into fungicides and soak them for 1.5 days, rinse them with sterile water, pick up and drain the surface water, put Dry it in a 45°C oven until the moisture is less than 6%, then pulverize it and pass through a 95-mesh sieve to obtain konjac flour for subsequent use;

[0054] The bactericide is dissolving colaconone and citric acid in water to form a mixed solution with a mass concentration of 0.035%, wherein the mass ratio of colaconone and citric acid is 1:3.3;

[0055] (2) Degreasing: Weigh the above-mentioned konjac flour and wrap it with a filter paper tube, put it in a degreasing instrument, degrease it in a constant temperature water bath oscillator at 43°C for 2.5h, filter to obtai...

Embodiment 3

[0068] A response surface method optimizes a process for ultrasonic-assisted extraction of konjac glucomannan, which specifically includes the following steps:

[0069] (1) Raw material processing: Clean the fresh konjac bulbs, remove the roots, buds and skins, cut them into slices, and soak them in fungicide for 2 days, rinse them with sterile water, pick up and drain the surface water, put Dry it in an oven at 50°C until the moisture is less than 6%, then pulverize and pass through a 100-mesh sieve to obtain konjac flour, which is set aside;

[0070] The bactericide is dissolving colaconone and citric acid in water to form a mixed solution with a mass concentration of 0.04%, wherein the mass ratio of colaconone and citric acid is 1:3.6;

[0071] (2) Degreasing: Weigh the above-mentioned konjac flour and wrap it with a filter paper tube, put it in a degreasing instrument, degrease it in a constant temperature water bath oscillator at 50°C for 3h, filter to obtain a filter res...

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Abstract

The invention relates to the technical field of plant ingredient extraction, and particularly relates to a technology for ultrasonic-assisted extraction of konjac glucomannan through response surface method optimization. The technology comprises the following steps of (1) soaking konjac into a bactericide and drying and crushing to obtain konjac powder; (2) carrying out degreasing treatment on the konjac powder; (3) removing free revertose from the degreased konjac powder; (4) carrying out ultrasonic-assisted extraction of konjac glucomannan; (5) determining the content and the extraction rate of the konjac glucomannan; and (6) selecting three factors, such as a temperature, a solid-liquid rate and ultrasonic power for response surface experiment design on the basis of a single-factor experiment to obtain the optimal extraction process parameters: the ultrasonic wave power is 43.67w, the temperature is 72.69 DEG C, the solid-liquid rate is 1:120.3g/mL and the prediction extraction rate is 44.38%. The extraction parameters are effectively optimized, the physical and chemical properties of the konjac glucomannan are not destroyed, and the technology is high in extraction efficiency, simple in operation and easy to produce.

Description

technical field [0001] The invention relates to the technical field of plant component extraction, in particular to a process for optimizing the ultrasonic-assisted extraction of konjac glucomannan by response surface method. Background technique [0002] Konjac not only has high nutritional value, but also has attracted people's attention for its medicinal value. It contains a variety of vitamins, various minerals, trace elements and rich dietary fiber, which can treat the common diseases of wealth in modern people: diabetes, high blood pressure and obesity. All have special curative effect, are called natural health food by people. In the whole konjac plant, the ingredient that people use is the glucomannan in the konjac tuber, which is the main active ingredient in the konjac plant, referred to as KGM. Konjac glucomannan can be used as an adhesive additive for papermaking, printing glue, rubber, ceramics, and photographic film. In recent years, many scholars at home and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/02
CPCC08B37/009
Inventor 杨郑州麦馨允谢晓娜黄斌覃海强
Owner BAISE UNIV
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