Ultrafiltration cleaning of enzyme

A technology of ultrafiltration enzymes and ultrafiltration membranes, applied in the direction of enzymes, hydrolytic enzymes, enzymes, etc., can solve the problems of permanent loss of processing capacity, reduction of membrane processing capacity, irreversible membrane pollution, etc., to improve membrane permeability and avoid Membrane fouling, the effect of solving the reduction of membrane treatment capacity

Inactive Publication Date: 2007-05-30
TIANJIN DAMEI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although the above-mentioned different cleaning methods are introduced, the ultrafiltration membrane clogging occurs in different degrees in various fruit juice factories every year during the pressing season, and the membrane processing capacity is reduced, which affects the overall production capacity of the factory. We also found in production practice that due to the current The "second squeeze" process used in both resulted in subtle changes in the components of the juice, which caused problems in the subseque

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040] Example 1: Preparation of ultrafiltration cleaning enzyme

[0041] Raw material composition: ultrafiltration cleaning enzyme 1#, ultrafiltration enzyme 3#.

[0042] Ultrafiltration cleaning enzyme 1#:

[0043] Pectinase 10g, cellulase 10g, xylanase 40g, β-glucanase 5g, β-glucosidase 5g;

[0044] Preparation method: Mix pectinase, cellulase, xylanase, β-glucanase and β-glucosidase in a sterile environment according to the above ratio through a mechanical mixer.

[0045] Ultrafiltration enzyme 3#:

[0046] Acid protease 40g, papain 20g, bromelain 15g, fat decarboxylase 10g.

[0047] Preparation method: Mix acid protease, papain, bromelain and fat decarboxylase in a sterile environment according to the above-mentioned mechanical mixing machine.

example 2

[0048] Example 2: Preparation of ultrafiltration cleaning enzyme

[0049] Raw material composition: ultrafiltration cleaning enzyme 1#, ultrafiltration enzyme 3#.

[0050] Ultrafiltration cleaning enzyme 1#:

[0051] Pectinase 15g, cellulase 15g, xylanase 50g, β-glucanase 10g, β-glucosidase 10g;

[0052] Preparation method: Mix pectinase, cellulase, xylanase, β-glucanase and β-glucosidase in a sterile environment according to the above ratio through a mechanical mixer.

[0053] Ultrafiltration cleaning enzyme 3#:

[0054] Acid protease 50g, papain 30g, bromelain 20g, fat decarboxylase 15g.

[0055] Preparation method: Mix acid protease, papain, bromelain and fat decarboxylase in a sterile environment by a mechanical mixer according to the above ratio.

example 3

[0057] Production test of concentrated fruit juice enterprise in Shaanxi

[0058] After the ultrafiltration equipment works for 10 hours, the membrane permeability generally drops to 10.5-11.3m 2 / h.

[0059] After conventional alkali washing and sodium hypochlorite washing (pH is controlled at 10-11), the fruit juice enters the ultrafiltration system, and the membrane permeation volume is as follows:

[0060] time (h)

Membrane permeability (m 2 / h)

Inlet pressure(kg)

Outlet pressure (kg)

temperature(℃)

1

15.7

5.3

1.0

51

2

15.3

5.1

1.0

51

3

14.6

5.2

1.0

50

4

14.0

5.1

1.1

50

5

13.2

5.1

1.0

50

6

12.6

5.3

1.0

50

[0061] 7

12.1

5.2

1.0

50

8

11.8

5.2

1.0

50

9

11.6

5.3

1.0

50

10

11.1

5.1

1.0

50

[0062] After th...

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PUM

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Abstract

The invention discloses an ultrafilter washing enzyme and manufacturing method to improve permeabile content through ultrafilter washing enzyme, which is composed of ultrafilter enzyme 1# and 3#, pectase, cellulose enzyme, xylanase, beta-glucanase, beta-glucosidase. The making method comprises the following steps: washing through alkalin; adding 1000-3000ppm/t ultrafilter enzyme 1# and 500-1000ppm/t amylase in the circulating system to circulate 30-60 min; washing through alkali again; adding 1000-3000ppm/t ultrafilter enzyme 3# in the system to circulate 30-60 min; separating retention material on the film surface; improving the effect of chemical abluent; improving membrane permeability.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing and relates to the fruit and vegetable juice processing industry, in particular to an ultrafiltration cleaning enzyme preparation used in concentrated fruit and vegetable juice and a preparation method thereof. Background technique [0002] After 20 years of development in our country, the concentrated fruit and vegetable juice industry has grown from scratch, and now it has become an agricultural product processing industry that has attracted a lot of attention from abroad. It can be said that the industry has entered a relatively healthy and mature period. [0003] Among the concentrated fruit and vegetable juices, concentrated apple juice is particularly concerned. It is made of apples after squeezing and concentrating. Because of its mild and sweet taste, it is mainly used as the basic ingredient of beverages. 90% of foreign beverage manufacturers Concentrated apple ju...

Claims

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Application Information

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IPC IPC(8): C12N9/00C12N9/24C12N9/50B01D65/06A23L2/04
Inventor 杨杨
Owner TIANJIN DAMEI SCI & TECH
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