Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines
Novel integrated flow-based steam distillation and titration system with spectrophotometric detection was developed for determination of volatile acidity in wines. Using the system, the distillation procedure was carried out in an automatic manner, starting with introducing into a heated steam disti...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/24/7673 |
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| author | Justyna Paluch Joanna Kozak Karolina Mermer Iwona Molęda Marcin Wieczorek Sławomir Kalinowski Paweł Kościelniak |
| author_facet | Justyna Paluch Joanna Kozak Karolina Mermer Iwona Molęda Marcin Wieczorek Sławomir Kalinowski Paweł Kościelniak |
| author_sort | Justyna Paluch |
| collection | DOAJ |
| description | Novel integrated flow-based steam distillation and titration system with spectrophotometric detection was developed for determination of volatile acidity in wines. Using the system, the distillation procedure was carried out in an automatic manner, starting with introducing into a heated steam distillation module a sample and subjecting it to steam distillation. Under selected conditions, all the analyte was transferred to the distillate; therefore, the system did not require calibration. The collected distillate and titrant were introduced into the next monosegments in varying proportions, in accordance with the developed titration procedure, and directed to the detection system to record the titration curve. The titration was stopped after reaching the end point of titration. Procedures for distillation and titration were developed and verified separately by distillation of acetic acid, acetic acid in the presence of tartaric acid as well as acetic acid, tartaric acid, and titratable acidity, with precision (relative standard deviation) and accuracy (relative error) for both procedures lower than 6.9 and 5.6%, respectively. The developed steam distillation and titration systems were used to determine volatile acidity in samples of white and rosé wines separately and as the integrated steam distillation and titration system, both with precision lower than 9.4% and accuracy better than 6.7%. |
| first_indexed | 2024-03-10T03:28:12Z |
| format | Article |
| id | doaj.art-5485174ab19c4bb7a52e9a8af752bc90 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T03:28:12Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-5485174ab19c4bb7a52e9a8af752bc902023-11-23T09:47:35ZengMDPI AGMolecules1420-30492021-12-012624767310.3390/molecules26247673Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in WinesJustyna Paluch0Joanna Kozak1Karolina Mermer2Iwona Molęda3Marcin Wieczorek4Sławomir Kalinowski5Paweł Kościelniak6Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, PolandFaculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, PolandDepartment of Chemistry, University of Warmia and Mazury, Plac Łódzki 4, 10-957 Olsztyn, PolandFaculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, PolandNovel integrated flow-based steam distillation and titration system with spectrophotometric detection was developed for determination of volatile acidity in wines. Using the system, the distillation procedure was carried out in an automatic manner, starting with introducing into a heated steam distillation module a sample and subjecting it to steam distillation. Under selected conditions, all the analyte was transferred to the distillate; therefore, the system did not require calibration. The collected distillate and titrant were introduced into the next monosegments in varying proportions, in accordance with the developed titration procedure, and directed to the detection system to record the titration curve. The titration was stopped after reaching the end point of titration. Procedures for distillation and titration were developed and verified separately by distillation of acetic acid, acetic acid in the presence of tartaric acid as well as acetic acid, tartaric acid, and titratable acidity, with precision (relative standard deviation) and accuracy (relative error) for both procedures lower than 6.9 and 5.6%, respectively. The developed steam distillation and titration systems were used to determine volatile acidity in samples of white and rosé wines separately and as the integrated steam distillation and titration system, both with precision lower than 9.4% and accuracy better than 6.7%.https://www.mdpi.com/1420-3049/26/24/7673spectrophotometryautomated steam distillationmonosegmented flow titrationflow analysiswine analysis |
| spellingShingle | Justyna Paluch Joanna Kozak Karolina Mermer Iwona Molęda Marcin Wieczorek Sławomir Kalinowski Paweł Kościelniak Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines Molecules spectrophotometry automated steam distillation monosegmented flow titration flow analysis wine analysis |
| title | Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines |
| title_full | Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines |
| title_fullStr | Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines |
| title_full_unstemmed | Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines |
| title_short | Novel Integrated Flow-Based Steam Distillation and Titration System for Determination of Volatile Acidity in Wines |
| title_sort | novel integrated flow based steam distillation and titration system for determination of volatile acidity in wines |
| topic | spectrophotometry automated steam distillation monosegmented flow titration flow analysis wine analysis |
| url | https://www.mdpi.com/1420-3049/26/24/7673 |
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