Malt total nitrogen detection method

A detection method, malt technology, which is applied in the direction of chemical analysis by titration method, etc., can solve the problems of large amount of chemical reagents used and exhaust gas emissions

Inactive Publication Date: 2015-10-28
FUJIAN YANJING HUIQUAN BREWERY CO LTD
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using this standard for detection, there are defects ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Malt total nitrogen detection method
  • Malt total nitrogen detection method
  • Malt total nitrogen detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to further explain the technical solution of the present invention, the following will be described in detail in conjunction with the examples.

[0027] Select different varieties of malt and test them according to the method of QBT1686-2008, specifically:

[0028] Make the malt into a fine powder sample according to Section 6.3.1.1 of QBT1686-2008;

[0029] Digest the malt with reference to the digestion step in 6.10.4.1 in QBT1686-2008. The difference between the present invention and the digestion step in 6.10.4.1 in QBT1686-2008 is that the fine powder sample is changed to 1g, and the amount of concentrated sulfuric acid is changed to 1g. 10mm. Other operating procedures and instruments are the same as those in this QBT1686-2008.

[0030] Refer to the distillation step in 6.10.4.1 of QBT1686-2008 to distill the digestive liquid. The difference between the present invention and the distillation step in 6.10.4.1 of QBT1686-2008 is that the amount of sodium ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to a malt total nitrogen detection method. According to the present invention, with the long term research and experiment on the test method of QBT1686-2008, the malt total nitrogen detection is performed according to the method in the "beer malt QBT1686-2008", the amount of the sample to be tested is reduced to 1 g while the catalyst content is maintained at the unchanged state, and the addition amounts of the catalyst and the concentrated sulfuric acid can be reduced to 10 mL (according to the conventional ratio, the scaling result shows that the required sulfuric acid amount is 13.4 mL when the amount of the sample to be tested is 1 g during the testing according to the " beer malt QBT1686-2008"), such that the measurement accuracy is ensured while the concentrated sulfuric acid consumption is reduced, the waste gas emission during the reaction process is reduced, and the sodium hydroxide consumption during the distillation process is reduced so as to finally achieve beneficial effects of chemical consumption reducing and waste gas emission reducing.

Description

technical field [0001] The invention relates to the field of food detection, and specifically relates to a method for detecting malt total nitrogen. Background technique [0002] The Kolbach Index (Kolbach Index) of beer malt is protein solubility, referred to as library value (K.I). Expressed as a percentage, it reflects the degree of protein decomposition in malt and is a limited indicator for judging the quality of malt. [0003] Whether the decomposition of protein in the grain of malt is proper or not is the main factor determining the quality of malt and beer. If the malt storage value is low, it indicates that the malt is poorly dissolved. Poor persistence, and easy to produce protein turbidity. If the protein is decomposed excessively, it will cause the yeast to age prematurely, and the wine will taste pale. It can be seen that the determination of malt storage value is very important to beer brewing enterprises and malt manufacturing enterprises. [0004] In the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N31/16
Inventor 庄学兰骆昆穆
Owner FUJIAN YANJING HUIQUAN BREWERY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap