期刊
INTERNATIONAL JOURNAL OF ANALYTICAL CHEMISTRY
卷 2015, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2015/209214
关键词
-
资金
- CONSOLIDER-Ingenio project (CARNISENUSA, Comision Interministerial de Ciencia y Tecnologia)
- Gobierno de Extremadura [GR10180]
This study evaluated the use of a mixer mill as the homogenization tool for the extraction of free amino acids in meat samples, with the main goal of analyzing a large number of samples in the shortest time and minimizing sample amount and solvent volume. Ground samples (0.2 g) were mixed with 1.5 mL HCl 0.1 M and homogenized in the mixer mill. The final biphasic system was separated by centrifugation. The supernatant was deproteinized, derivatized and analyzed by gas chromatography. This procedure showed a high extracting ability, especially in samples with high free amino acid content (recovery = 88.73-104.94%). It also showed a low limit of detection and quantification (3.8.10(-4) -6.6.10(-4) mu g mu L-1 and 1.3.10(-3) -2.2.10(-2) mu g mu L-1, resp.) for most amino acids, an adequate precision (2.15-20.15% for run-to-run), and a linear response for all amino acids (R-2 = 0.741-0.998) in the range of 1-100 mu g mL(-1). Moreover, it takes less time and requires lower amount of sample and solvent than conventional techniques. Thus, this is a cost and time efficient tool for homogenizing in the extraction procedure of free amino acids from meat samples, being an adequate option for routine analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据