Grain fatty acid value pretreatment platform and treatment method thereof

Abstract

The invention discloses a grain fatty acid value pretreatment platform and a treatment method thereof. A treatment platform successively comprises a sample container, a filter, a liquid storage pipe,a rotating disc, a pipetting cup, a liquid crystal display screen, a distilled water container and an indicator container from the left to the right. The sample container, the filter and the liquid storage pipe are successively connected with the pipetting cup through a flexible pipe. The distilled water container and the indicator container are connected to the pipetting cup through the flexiblepipe. The pipetting cup is arranged at an upper end of the rotating disc, and the liquid crystal display screen is connected with the filter, the liquid storage pipe, the rotating disc, the pipettingcup, the distilled water container and the indicator container through circuits. A fatty acid value of a sample is quickly dissolved by using high-speed stirring, and a solution is directly extractedthrough the filter and a diaphragm pump so that a large amount of time is saved. The filter and the diaphragm pump are used for extracting the sample solution, and efficiency is improved compared withan original gravity method used for slowly filtering.

Description

technical field [0001] The invention relates to the field of grain fatty acid value pre-processing equipment, in particular to a grain fatty acid value pre-processing platform and a processing method thereof. Background technique [0002] Grain fatty acid value is the quantity value to test the content of free fatty acid in grain. The test result is expressed by the amount of potassium hydroxide required to neutralize the free fatty acid in 100g grain sample. The change of fatty acid value reflects the poor quality of rice and corn. Therefore, in the national standard grain storage judgment rules, it is used as a suitable storage index for rice and corn. [0003] During the ripening, harvesting and storage of grains, due to the influence of endogenous enzymes and external temperature, humidity and other factors, the lipid components will undergo hydrolysis reactions to produce free fatty acids, and external environmental factors such as pests, molds, etc. will accelerate the...

AI Technical Summary

Problems solved by technology

[0004] Due to the complicated operation process of the existing grain fatty acid value pretreatment equipment and the use of many glassware, the manual workload and working time in the whole process are very large, which reduces the work efficiency. All sample pretreatment processes are The unified operation process of organic solvent extraction, shaking, and filtration has the following defects:

[0005] The extraction time is too long, which greatly reduces the extraction efficiency; after the extraction is completed, it needs to be manually pipetted with filter paper and a burette, which is slow and cumbersome to operate, and in the process, some grassroots personnel still lack the use of the burette. The inaccurate pipetting will directly affect the final experimental results, so that the grain departments such as grass-roots grain depots and grain and oil monitoring stations at all levels cannot obtain efficient and accurate test results when testing large quantities of samples.

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