Determination of free glutamic acid in a variety of foods by high‐performance liquid chromatography
作者:
DanielH. Daniels,
FrankL. Joe,
GregoryW. Diachenko,
期刊:
Food Additives & Contaminants
(Taylor Available online 1995)
卷期:
Volume 12,
issue 1
页码: 21-29
ISSN:0265-203X
年代: 1995
DOI:10.1080/02652039509374275
出版商: Taylor & Francis Group
关键词: glutamic acid;foods;high‐performance liquid chromatography
数据来源: Taylor
摘要:
A survey of free glutamic acid levels in a variety of foods was conducted. The foods were analysed by high‐performance liquid chromatography (HPLC). Free glutamic acid was extracted from the food with 0.02m potassium phosphate with subsequent precipitation of other food components with acetone. Impurities were removed by passing the extract through a C‐8 or C‐18 reversed‐phase solid‐phase extraction column. The free glutamic acid was derivatized with phenylisothiocyanate, and the derivative was separated by HPLC with detection at 254 nm. Free glutamic acid levels ranged from not found (<20ppm) in some spices to as high as 89% in another spice.
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