pH‐metric determination of acid values in vegetable oils without titration
A new method for determining acid values in vegetable oils has been developed for a nontitration pH‐metric technique with a reagent consisting of 0.20 M triethanolamine in a 1∶1 solution of water and isopropanol. The emulsive properties of this reagent provide rapid (within a minute) and quantitativ...
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| Veröffentlicht in: | Journal of the American Oil Chemists' Society 1996-03, Vol.73 (3), p.295-301 |
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| container_end_page | 301 |
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| container_issue | 3 |
| container_start_page | 295 |
| container_title | Journal of the American Oil Chemists' Society |
| container_volume | 73 |
| creator | Tur’yan, Ya. I. Berezin, O. Yu Kuselman, I. Shenhar, A. |
| description | A new method for determining acid values in vegetable oils has been developed for a nontitration pH‐metric technique with a reagent consisting of 0.20 M triethanolamine in a 1∶1 solution of water and isopropanol. The emulsive properties of this reagent provide rapid (within a minute) and quantitative extraction of free fatty acids from an oil into the solvent phase. Acid values were determined by measuring conditional pH of the emulsified reagent in a pH‐meter with an aqueous reference electrode. Three different applications of this technique are discussed. |
| doi_str_mv | 10.1007/BF02523422 |
| format | Article |
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I. ; Berezin, O. Yu ; Kuselman, I. ; Shenhar, A.</creator><creatorcontrib>Tur’yan, Ya. I. ; Berezin, O. Yu ; Kuselman, I. ; Shenhar, A.</creatorcontrib><description>A new method for determining acid values in vegetable oils has been developed for a nontitration pH‐metric technique with a reagent consisting of 0.20 M triethanolamine in a 1∶1 solution of water and isopropanol. The emulsive properties of this reagent provide rapid (within a minute) and quantitative extraction of free fatty acids from an oil into the solvent phase. Acid values were determined by measuring conditional pH of the emulsified reagent in a pH‐meter with an aqueous reference electrode. 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I.</creatorcontrib><creatorcontrib>Berezin, O. Yu</creatorcontrib><creatorcontrib>Kuselman, I.</creatorcontrib><creatorcontrib>Shenhar, A.</creatorcontrib><title>pH‐metric determination of acid values in vegetable oils without titration</title><title>Journal of the American Oil Chemists' Society</title><description>A new method for determining acid values in vegetable oils has been developed for a nontitration pH‐metric technique with a reagent consisting of 0.20 M triethanolamine in a 1∶1 solution of water and isopropanol. The emulsive properties of this reagent provide rapid (within a minute) and quantitative extraction of free fatty acids from an oil into the solvent phase. Acid values were determined by measuring conditional pH of the emulsified reagent in a pH‐meter with an aqueous reference electrode. Three different applications of this technique are discussed.</description><subject>Acid value</subject><subject>Biological and medical sciences</subject><subject>conditional pH</subject><subject>Fat industries</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. 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| fulltext | fulltext |
| identifier | ISSN: 0003-021X |
| ispartof | Journal of the American Oil Chemists' Society, 1996-03, Vol.73 (3), p.295-301 |
| issn | 0003-021X 1558-9331 |
| language | eng |
| recordid | cdi_crossref_primary_10_1007_BF02523422 |
| source | Wiley Online Library Journals Frontfile Complete; SpringerLink Journals |
| subjects | Acid value Biological and medical sciences conditional pH Fat industries Food industries Fundamental and applied biological sciences. Psychology isopropanol pH‐metry titration triethanolamine vegetable oils |
| title | pH‐metric determination of acid values in vegetable oils without titration |
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