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对生物标志物的定量分析,以区分韩国和中国的泥
Hyunsuk Kim1, Junho Yang2, Hyunji Lee3
1Advanced Analysis Division, Toxicological Evaluation and Research Department, National Institute of Food Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju-si 28159, Republic of Korea.
中国和韩国的泥可以使用N-乙基胺和素代谢产物进行区分. 这些生物标志物提供了一种可靠的方法来验证泥的起源,这对水产养殖和食品安全至关重要.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
背景情况:
- 泥 (Misgurnus mizolepis) 是一种有价值的淡水水产物种.
- 从经济和食品安全的角度来看,区分中国和韩国的泥是非常重要的.
- 之前的研究确定了N-乙西丁和素作为潜在的生物标志物,但缺乏定量验证.
研究的目的:
- 量化验证N-乙基斯提丁和素作为泥原产地歧视的生物标志物.
- 评估这些代谢物的实际适用性,以区分中国和韩国的泥.
- 建立一个可靠的方法来确定泥的地理来源.
主要方法:
- 使用液体染色学-紫外线 (LC-UV) 和液体染色学-双重质谱法 (LC-MS/MS) 来分析来自不同地理来源的泥.
- 在泥样本中量化N-乙基斯提丁和素度.
- 统计分析,包括接收器操作特征 (ROC) 分析,以评估生物标志物的性能.
主要成果:
- 与韩国泥相比,中国泥的度显著更高,包括N-乙基斯蒂丁和素.
- ROC分析显示了高的分辨力,曲线下的面积 (AUC) 值为N-乙基斯提丁的0.88和安森的0.89.
- 确定的切割值表明了地理来源之间的可靠差异化.
结论:
- 乙烯西丁和素是有效的生物标志物,可以区分泥的地理来源.
- 开发的分析方法为泥流产地验证提供了一种敏感和特定的方法.
- 这种方法支持准确的分配经济和水产养殖行业的强有力的食品安全法规.
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