A rapid spectrophotometric method for determining the linoleic and linolenic acid components of soybean oil
| Autor: | V. E. Sedgwick, F. I. Collins |
|---|---|
| Rok vydání: | 1956 |
| Předmět: |
0301 basic medicine
030109 nutrition & dietetics Chromatography food.ingredient medicine.diagnostic_test Chemistry Linolenic acid General Chemical Engineering Linoleic acid Organic Chemistry 04 agricultural and veterinary sciences 040401 food science Soybean oil 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology food Spectrophotometry Reagent medicine Glycerol Methanol |
| Zdroj: | Journal of the American Oil Chemists' Society. 33:149-152 |
| ISSN: | 0003-021X |
| DOI: | 10.1007/bf02638200 |
| Popis: | A reagent of 11% KOH-glycerol was satisfactory for isomerizing soybean oil at 180°C. in open bottles in a forced-draft air-oven. A rapid means of analyzing soybean oil for linolenic and linoleic acid was developed. The optical densities of methanol solutions were measured at 268 mµ and 233 mµ in special cells with quartz windows and short light paths, and the percentages were calculated by means of a nomograph. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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