Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain
A more stable and reliable method of the fatty acid values determination in grain was studied based on the establishment of manual titration method associated with the automatic potentiometric titration.The GB/T 20569—2006 Guidelines for evaluation of paddy storage character for the sample pre-treat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Academy of National Food and Strategic Reserves Administration
2020-01-01
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| Series: | Liang you shipin ke-ji |
| Subjects: | |
| Online Access: | http://lyspkj.ijournal.cn/lyspkj/article/abstract/20200116?st=article_issue |
| _version_ | 1797804397695074304 |
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| author | LI Wei-xiang LU Shi-dong ZHANG Ji-guang |
| author_facet | LI Wei-xiang LU Shi-dong ZHANG Ji-guang |
| author_sort | LI Wei-xiang |
| collection | DOAJ |
| description | A more stable and reliable method of the fatty acid values determination in grain was studied based on the establishment of manual titration method associated with the automatic potentiometric titration.The GB/T 20569—2006 Guidelines for evaluation of paddy storage character for the sample pre-treatment was used, and the manual titration was replaced by automatic potentiometric titration to determine the free fatty acid in grain with KOH as the standard titration solution.At the same time, the change of pH values in test solution were determined during titration, following by the corresponding real time change curves of pH-titration volume which will be stopped at the set terminal PH values, and phenolphthalein indicator was used as the finish monitoring in the process of the titration.The results showed that the titration processes were not affected by man-made factors, and the accuracy has no significant difference compared with manual titration method, thus ensuring the determination results has better repeatability, reproducibility and stability,and with the wider application scope. |
| first_indexed | 2024-03-13T05:36:35Z |
| format | Article |
| id | doaj.art-6badf69ab7e0433092d3901a14ebe417 |
| institution | Directory Open Access Journal |
| issn | 1007-7561 |
| language | English |
| last_indexed | 2024-03-13T05:36:35Z |
| publishDate | 2020-01-01 |
| publisher | Academy of National Food and Strategic Reserves Administration |
| record_format | Article |
| series | Liang you shipin ke-ji |
| spelling | doaj.art-6badf69ab7e0433092d3901a14ebe4172023-06-14T07:22:02ZengAcademy of National Food and Strategic Reserves AdministrationLiang you shipin ke-ji1007-75612020-01-01281879310.16210/j.cnki.1007-7561.2020.01.016Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grainLI Wei-xiang0LU Shi-dong1ZHANG Ji-guang2Kunming Grain and Oil and Feed Product Quality Inspection center，Kunming Yunnan 650118Kunming Grain and Oil and Feed Product Quality Inspection center，Kunming Yunnan 650118Kunming Grain and Oil and Feed Product Quality Inspection center，Kunming Yunnan 650118A more stable and reliable method of the fatty acid values determination in grain was studied based on the establishment of manual titration method associated with the automatic potentiometric titration.The GB/T 20569—2006 Guidelines for evaluation of paddy storage character for the sample pre-treatment was used, and the manual titration was replaced by automatic potentiometric titration to determine the free fatty acid in grain with KOH as the standard titration solution.At the same time, the change of pH values in test solution were determined during titration, following by the corresponding real time change curves of pH-titration volume which will be stopped at the set terminal PH values, and phenolphthalein indicator was used as the finish monitoring in the process of the titration.The results showed that the titration processes were not affected by man-made factors, and the accuracy has no significant difference compared with manual titration method, thus ensuring the determination results has better repeatability, reproducibility and stability,and with the wider application scope.http://lyspkj.ijournal.cn/lyspkj/article/abstract/20200116?st=article_issuefatty acid valuesautomatically potentiometric titration methodgrainapplicability |
| spellingShingle | LI Wei-xiang LU Shi-dong ZHANG Ji-guang Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain Liang you shipin ke-ji fatty acid values automatically potentiometric titration method grain applicability |
| title | Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain |
| title_full | Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain |
| title_fullStr | Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain |
| title_full_unstemmed | Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain |
| title_short | Study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain |
| title_sort | study on automatically potentiometric titration simulating manual titration method for determination of fatty acid value of grain |
| topic | fatty acid values automatically potentiometric titration method grain applicability |
| url | http://lyspkj.ijournal.cn/lyspkj/article/abstract/20200116?st=article_issue |
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