Rapid determination method for insoluble solid content in fruit and vegetable juice

A technology for rapid determination of solid content, applied in the direction of chemical analysis by precipitation, can solve problems such as the inability to meet the requirements of instant detection, and achieve the effects of short detection time, simple operation method, and favorable market promotion.

Active Publication Date: 2014-12-03
合浦果香园食品有限公司
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a rapid determination method for insoluble solids content in fruit and vegetable juices, which can realize fast and stable real-time control of insoluble solids content indicators in the production process of fruit and vegetable juices, and overcome the inability of traditional detection methods to meet the real-time requirements in the production process. Lack of testing requirements

Method used

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  • Rapid determination method for insoluble solid content in fruit and vegetable juice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Determination of working separation factor of centrifuge:

[0025] The separation factor is determined by the following formula:

[0026] Kc = Rω 2 / g

[0027] R—the radius of rotation of the centrifuge tube, unit: meter, refers to the average value of the distance between the nearest end and the farthest end of the centrifuge tube when the centrifuge tube is in working condition, such as figure 1 As shown, what is shown in the figure is the working state of the centrifuge tube. In this embodiment, the rotating shaft 1 drives the centrifuge tube 2 to rotate at a speed of 3000 rpm. When the centrifuge tube 2 is working, it is perpendicular to the rotating shaft 1. The most recent end is A, and the farthest end is B, and the most recent section of present embodiment: A=0.075 meter, the farthest end: B=0.145 meter, average value: R==0.110 meter;

[0028] ω—angular velocity, unit: rad, ω=2лS / 60, S—centrifuge speed, unit: rev / min; in this embodiment, the centrifuge ...

Embodiment 2

[0033] (1) Determination of working separation factor of the centrifuge: same as Example 1;

[0034] (2) Determination of the content of insoluble solids in fruit and vegetable juices: Use a 10ml graduated straw to absorb 10ml of fruit juice or pulp into two 10.0ml centrifuge tubes with a minimum scale of 0.1ml, symmetrically Put it into an automatic balancing centrifuge, close the lid, adjust the speed to 3000 rpm, and centrifuge for 10 minutes. The centripetal acceleration parameter of the centrifuge is 1000g. Read the average of the volume readings of the solids in the two centrifuge tubes, which is the solids content.

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Abstract

The invention discloses a rapid determination method for insoluble solid content in fruit and vegetable juice. In order to know the content of insoluble solid in fruit and vegetable juice at any time, the production enterprises need a method for rapidly determining the insoluble solid content in fruit and vegetable juice, and the rapid determination method for insoluble solid content in fruit and vegetable juice is provided for solving the problem. The technical scheme of the rapid determination method for insoluble solid content in fruit and vegetable juice comprises the following steps of: (1) determining a working separation factor of a centrifugal machine, determining the centrifugal separation factor by the formula Kc=Romega2 / g; (2) determining the content of insoluble solid in fruit and vegetable juice, and determining a centripetal acceleration parameter of the centrifugal machine according to the centrifugal separation factor so as to determine the solid in fruit and vegetable juice. According to the method, based on the separation factor, the centrifugal machine performs centrifugal separation determination for the fruit and vegetable juice, and thus, the content of insoluble solid in fruit and vegetable juice is determined rapidly. The method has the characteristics of being rapid and steady, and being capable of immediately controlling the insoluble solid content index, so that the quality of fruit and vegetable juice products is steady, the products are standardized, and market promotion is facilitated.

Description

technical field [0001] The invention relates to a method for quickly determining the content of insoluble solids in fruit and vegetable juices, and belongs to the technical field of quality detection of fruit deep-processing products. Background technique [0002] The fruit and vegetable juice processing plant is a necessary link between the grower and the beverage factory. Before the fruit and vegetable raw materials are turned into fruit and vegetable juice, the fruit and vegetable juice processing plant needs to process and process to form a standard product, which is then provided to the beverage processing plant to produce beverages. The standard of the fruit and vegetable juice processing plant The product is the standard raw material of the beverage processing plant. Because there are standard raw materials, beverage processing becomes easier and the quality is more stable, which is conducive to market promotion. [0003] The traditional fruit and vegetable juice mar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/02
Inventor 满桂富张萃芳李日坤
Owner 合浦果香园食品有限公司
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