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Method for removing nitrate and nitrite during cucumber clear juice processing

A processing and nitrite technology, applied in the field of nitrate and nitrite removal, can solve the problems of wet storage environment, untimely processing, mildew and other problems

Inactive Publication Date: 2015-03-11
JINAN INST OF FRUIT PRODS CHINA GENERAL SUPPLY & MARKETING COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the extensive use of nitrogen fertilizer in the cultivation process of cucumbers, more nitrate and nitrite will be accumulated in cucumbers; and in the process of cucumber processing, there are situations of untimely processing and humid storage environment, and mildew is also easy to occur. Accumulation of nitrates and nitrites in raw materials

Method used

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  • Method for removing nitrate and nitrite during cucumber clear juice processing

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specific Embodiment approach

[0030] The present invention will be described in detail below in conjunction with the examples, but not limited thereto.

[0031] The equipment used in the examples,

Embodiment 1

[0033] A method for removing nitrate and nitrite during the processing of clear cucumber juice, comprising the following steps:

[0034] (1) Material preparation: take fresh, insect-free cucumbers, wash and drain;

[0035] (2) crushing: the cucumber after cleaning in the step (1) was crushed by a hammer crusher for 8 minutes, and the rotating speed of the hammer crusher was 1400r / min to obtain cucumber pulp;

[0036] (3) Pump the cucumber slurry into a belt juice extractor and squeeze to obtain the original cucumber juice;

[0037] (4) Add pectinase and amylase to the raw cucumber juice prepared in step (3) and stir evenly for enzymolysis, heat to 48°C for 55 minutes, and the amount of pectinase added is 0.2‰ of the mass of the original cucumber juice , the amount of amylase added is 0.2‰ of the quality of the original cucumber juice.

[0038] (5) The cucumber raw juice after the enzymolysis in step (4) is centrifuged for 12min by the drum, and the rotating speed of the drum...

Embodiment 2

[0049] A method for removing nitrate and nitrite during the processing of clear cucumber juice, comprising the following steps:

[0050] (1) Material preparation: take fresh, insect-free cucumbers, wash and drain;

[0051](2) crushing: the cucumber after cleaning in the step (1) was crushed by a hammer crusher for 10 minutes, and the rotating speed of the hammer crusher was 1300r / min to obtain cucumber pulp;

[0052] (3) Pump the cucumber slurry into a belt juice extractor and squeeze to obtain the original cucumber juice;

[0053] (4) Add pectinase and amylase to the raw cucumber juice prepared in step (3) and stir evenly for enzymolysis, heat to 50° C. for 50 minutes, and the amount of pectinase added is 0.3‰ of the mass of the original cucumber juice , the amount of amylase added is 0.2‰ of the quality of the original cucumber juice.

[0054] (5) The cucumber raw juice after the enzymolysis in step (4) is centrifuged for 15min by the rotating drum, and the rotating speed ...

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Abstract

The invention relates to a method for removing nitrate and nitrite during cucumber clear juice processing. The method comprises the following steps: crushing to prepare cucumber pulp, squeezing to prepare cucumber normal juice, carrying out enzymolysis and centrifugal treatment on the cucumber normal juice to obtain cucumber clear juice, adding active carbon in the cucumber clear juice to carry out stirring adsorption, carrying out ultrafiltration, heating to 45-50 DEG C, obtaining clarified cucumber clear juice through a resin adsorption column, and carrying out vacuum concentration, sterilization and filling on the cucumber clear juice to obtain the nitrate and nitrite removed cucumber clear juice. According to the method, macroporous resin is used for adsorbing the nitrate and nitrite in the cucumber juice during cucumber clear juice processing, so that the removal cost is low, the efficiency is high and the quality index of the domestic and export fruit and vegetable juice can be fully satisfied; meanwhile, the macroporous resin can be repeatedly used through elution, and the elution rate is up to above 90%.

Description

technical field [0001] The invention relates to a method for removing nitrate and nitrite during the processing of clear cucumber juice, belonging to the technical field of food processing. Background technique [0002] Cucumber can diuretic, strengthen the heart, beautify and regulate blood pressure, arteriosclerosis. The output of cucumbers in my country is huge, and problems such as backlog and rot are prone to occur during the marketing season. Processing cucumbers into clear cucumber juice can avoid losses and facilitate storage and transportation. American nutrition experts have confirmed through comparative studies that the effect of eating whole cucumbers is not as good as drinking cucumber juice. Drinking a glass of cucumber juice every day can prevent hair loss and nail splitting, and even enhance people's memory. With the extensive use of nitrogen fertilizer in the cultivation process of cucumbers, more nitrate and nitrite will be accumulated in cucumbers; and in...

Claims

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Application Information

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IPC IPC(8): A23L1/015A23L5/20
CPCA23L2/04A23L5/273A23V2002/00A23V2300/02
Inventor 朱风涛赵岩马寅斐和法涛初乐丁辰
Owner JINAN INST OF FRUIT PRODS CHINA GENERAL SUPPLY & MARKETING COOP
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