Determination the content of cysteine in food by potassium dichromate spectrophotometry
In this paper, a new method for the determination of cysteine by potassium dichromate spectrophotometry is established. In the H2SO4 medium, potassium dichromate has strong oxidation. Potassium dichromate can react with the hydrosulfuryl(-SH) in cysteine, which makes potassium dichromate fade, and t...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | BIO Web of Conferences |
| Online Access: | https://www.bio-conferences.org/articles/bioconf/pdf/2023/04/bioconf_icbb2023_01012.pdf |
| _version_ | 1827950029014302720 |
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| author | Wen Xinrong Tu Changqing |
| author_facet | Wen Xinrong Tu Changqing |
| author_sort | Wen Xinrong |
| collection | DOAJ |
| description | In this paper, a new method for the determination of cysteine by potassium dichromate spectrophotometry is established. In the H2SO4 medium, potassium dichromate has strong oxidation. Potassium dichromate can react with the hydrosulfuryl(-SH) in cysteine, which makes potassium dichromate fade, and the fading degree of potassium dichromate is proportional to the amount of cysteine added. Therefore, the content of cysteine can be quantitatively determined by determinating the decrease value of absorbance. The various influencing factors for the determination the content of cysteine by potassium bichromate spectrophotometry are investigated. Under the optimal conditions, the content of cysteine in food is determined, and the results are satisfactory. |
| first_indexed | 2024-04-09T13:20:03Z |
| format | Article |
| id | doaj.art-934a07034a9249338222fcfd9b64348b |
| institution | Directory Open Access Journal |
| issn | 2117-4458 |
| language | English |
| last_indexed | 2024-04-09T13:20:03Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | BIO Web of Conferences |
| spelling | doaj.art-934a07034a9249338222fcfd9b64348b2023-05-11T09:08:11ZengEDP SciencesBIO Web of Conferences2117-44582023-01-01590101210.1051/bioconf/20235901012bioconf_icbb2023_01012Determination the content of cysteine in food by potassium dichromate spectrophotometryWen Xinrong0Tu Changqing1School of Chemistry and Environment, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying UniversitySchool of Chemistry and Environment, Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas, Jiaying UniversityIn this paper, a new method for the determination of cysteine by potassium dichromate spectrophotometry is established. In the H2SO4 medium, potassium dichromate has strong oxidation. Potassium dichromate can react with the hydrosulfuryl(-SH) in cysteine, which makes potassium dichromate fade, and the fading degree of potassium dichromate is proportional to the amount of cysteine added. Therefore, the content of cysteine can be quantitatively determined by determinating the decrease value of absorbance. The various influencing factors for the determination the content of cysteine by potassium bichromate spectrophotometry are investigated. Under the optimal conditions, the content of cysteine in food is determined, and the results are satisfactory.https://www.bio-conferences.org/articles/bioconf/pdf/2023/04/bioconf_icbb2023_01012.pdf |
| spellingShingle | Wen Xinrong Tu Changqing Determination the content of cysteine in food by potassium dichromate spectrophotometry BIO Web of Conferences |
| title | Determination the content of cysteine in food by potassium dichromate spectrophotometry |
| title_full | Determination the content of cysteine in food by potassium dichromate spectrophotometry |
| title_fullStr | Determination the content of cysteine in food by potassium dichromate spectrophotometry |
| title_full_unstemmed | Determination the content of cysteine in food by potassium dichromate spectrophotometry |
| title_short | Determination the content of cysteine in food by potassium dichromate spectrophotometry |
| title_sort | determination the content of cysteine in food by potassium dichromate spectrophotometry |
| url | https://www.bio-conferences.org/articles/bioconf/pdf/2023/04/bioconf_icbb2023_01012.pdf |
| work_keys_str_mv | AT wenxinrong determinationthecontentofcysteineinfoodbypotassiumdichromatespectrophotometry AT tuchangqing determinationthecontentofcysteineinfoodbypotassiumdichromatespectrophotometry |