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Preparation method of pectinase preparation

A technology of pectinase preparation and pectinase, which is applied in the preparation of pectinase preparation, the preparation and canning of food grade acid pectinase liquid enzyme preparation, and can solve the problems of no growth, slow growth of bacteria, bacterial contamination, etc. problems, to achieve the effect of ensuring product quality and hygiene indicators

Inactive Publication Date: 2018-05-18
郑州神草生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a preparation method of pectinase preparation to solve the problem that the microbial index of acid pectinase preparation needs to be added during the shelf life and cold chain transportation and preservation process. Preservatives and the presence of bacterial contamination problems, slow or no bacterial growth in liquid acid pectinase preparations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of pectinase preparation, which comprises:

[0020] 1. Connect 500L of fermentation liquid released from the fermentation tank, the initial temperature is 28°C, pass cooling water to the jacket of the storage tank to cool down to 16°C. Then add sodium dihydrogen phosphate with a weight percentage of 0.5% and calcium chloride with a weight percentage of 0.5%, and let stand for 30 minutes for flocculation.

[0021] Two, use 200 mesh powdered activated carbon as filter aid, add activated carbon with pectinase solution to prepare pre-coated suspension, add activated carbon by w / v=0.5% in terms of pectinase solution, wherein, the unit of W is kg , the unit of V is l; the temperature of the steam is raised to 80°C and maintained for 10 minutes, and then pre-coated into the plate frame, the temperature of the purified water is cooled, and the temperature of the effluent is 20°C. Add activated carbon with w / v=0.5% in the pectinase solution, wherein the uni...

Embodiment 2

[0029] A preparation method of pectinase preparation, which comprises:

[0030] 1. Connect 500L of fermentation liquid released from the fermentation tank, the initial temperature is 28°C, pass cooling water to the jacket of the storage tank to cool down to 20°C. Then add 1% by weight of sodium dihydrogen phosphate and 0.5% by weight of calcium chloride, and let stand for 30 minutes for flocculation.

[0031] Two, use 100 mesh powdery activated carbon as filter aid, add activated carbon with pectinase solution to prepare pre-coated suspension, add activated carbon by w / v=0.5% in terms of pectinase solution, wherein, the unit of W is kg , the unit of V is l; the temperature of the steam is raised to 80°C and maintained for 10 minutes, and then pre-coated into the plate frame, and the temperature of the effluent is 18°C. Add activated carbon with w / v=0.5% in the pectinase solution, wherein the unit of W is kg, and the unit of V is l; after mixing, filter the pectin with a pre-c...

Embodiment 3

[0039] A preparation method of pectinase preparation, which comprises:

[0040] 1. Connect 500L of fermented liquid released from the fermenter, the initial temperature is 28°C, pass cooling water to the jacket of the storage tank to cool down to 10°C. Then add calcium chloride with a weight percentage of 1%, and let stand for 30 minutes for flocculation.

[0041] Two, use 150 mesh powdery activated carbon as filter aid, add active carbon with pectinase liquid to prepare pre-coating suspension, add active carbon by w / v=0.5% in terms of pectinase liquid, wherein, the unit of W is kg , the unit of V is 1; the temperature of the steam is raised to 80°C and maintained for 10 minutes, and then pre-coated into the plate frame, the temperature of the purified water is cooled, and the temperature of the outflow liquid is 18°C. Add activated carbon with w / v=0.5% in the pectinase solution, wherein the unit of W is kg, and the unit of V is l; after mixing, filter the pectin with a pre-c...

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PUM

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Abstract

The invention discloses a preparation method of a pectinase preparation. The preparation method includes: cooling acidic pectinase liquid obtained after fermentation to 10-20 DEG C; performing plate-frame pressure filtration, microfiltration and ultrafiltration; adjusting pH value, and performing end filtration and sterile filling. Slow growth of bacteria in the acidic pectinase preparation prepared by the method can still be ensured without adding a preservative. By controlling temperature of the whole preparation process, lowering nutrition source residue in the preparation and applying controllable sterile packaging technology, quality and hygienic indexes of the pectinase preparation can be well guaranteed without adding the preservative.

Description

technical field [0001] The invention relates to a preparation method of a pectinase preparation, in particular to a preparation and canning method of a food-grade acid pectinase liquid enzyme preparation. It belongs to the technical field of enzyme preparation production. Background technique [0002] Pectinase is an enzyme that can decompose pectin in plant fruits. Its preparation is widely used in the industrial production of fruit and vegetable juice production, extraction of plant active substances and fruit wine, etc. It has the functions of increasing filtration speed, increasing juice yield and yield, and improving Product clarity, prolonging the role of product shelf life. [0003] In the prior art, in order to ensure that the microbial indicators of acid pectinase preparations reach food-grade standards during the shelf life, liquid pectinase preparations mainly meet the requirements by adding preservatives (potassium sorbate, sodium benzoate, etc.) and cold chain ...

Claims

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Application Information

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IPC IPC(8): C12N9/88C12N9/26C12N9/18
CPCC12N9/88C12N9/18C12N9/2408C12Y301/01011C12Y302/01015C12Y402/02002
Inventor 不公告发明人
Owner 郑州神草生物技术有限公司