Analysis of Preservatives in Foods by Using Steam Distillation with Ammonium Sulfate Saturated Solution
Autor: | Osamu Nishiyama, Nobuyuki Oukuni, Mikiko Kurozuka, Shinichiro Morioka, Kahori Awano, Yoshio Kaneda, Reiko Kurita, Masuyo Matsumura |
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Rok vydání: | 1995 |
Předmět: | |
Zdroj: | Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi). 36:495-500_1 |
ISSN: | 1882-1006 0015-6426 |
Popis: | A method for the analysis of preservatives in foods by using steam distillation with saturated ammonium sulfate was developed.As the ammonium sulfate saturated solution was brought to pH 2 with phosphoric acid, so simultaneous distillation of benzoic acid (BA), sorbic acid (SoA), dehydroacetic acid (DHA), p-hydroxybenzoic acid esters (PHBA-Es) and propionic acid (PA) was possible.Recoveries of BA ranged from 89.3 to 101.4%, SoA from, 96.3 to 100.8%, DHA from 82.3 to 95.4%, PHBA-Es from 84.7 to 103.5%, and PA from 96.7 to 100.8%. |
Databáze: | OpenAIRE |
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