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우리나라 주요 김 생산해역의 해수 및 물김에 대한 위생학적 평가
정상현,신순범,오은경,조미라,윤민철,이희정,손광태,Jeong, Sang Hyeon,Shin, Soon Bum,Oh, Eun Gyoung,Jo, Mi-Ra,Yoon, Min Chul,Lee, Hee Jung,Son, Kwang-Tae 한국수산과학회 2017 한국수산과학회지 Vol.50 No.4
Sanitary evaluation of seawater and Pyropia sp. laver collected from the five major laver growing areas in Korea was performed four times over the course of a year. The seawater quality in four of these five areas was regarded as the clean area according to Korean criteria, but the seawater at one investigation site in Seoheon area was found to exceed the standard for fecal coliform. In the bacteriological safety analysis of laver (raw source), the percentages of samples not conforming to Chinese criteria at the five sites were 55.6% (Seocheon), 70.0% (Shinan), 81.8% [Jindo (Haenam)], 63.6% (Wando), and 28.6% [Goheung (Jangheung)]. Pathogenic bacteria were not detected in all laver samples. The food safety of laver (raw source) based on heavy metal concentration was confirmed using Korean criteria; the concentrations of heavy metals in laver samples collected from the major laver growing areas were 0.008-0.632 mg/kg wet weight (ww) lead, 0.024-0.137 mg/kg ww cadmium, 0.908-2.892 mg/kg ww total arsenic, and 0.003-0.013 mg/kg ww total mercury. Therefore, pollution source management and periodic monitoring of heavy metals may be required to improve the food safety of laver produced in these laver growing areas.
LC-MS/MS (Liquid Chromatography-Tandem Mass Spectrometry)를 이용한 패류 및 피낭류 중 아자스필산 분석법의 유효성 검증
조성래 ( Sung Rae Cho ),정상현 ( Sang Hyeon Jeong ),박큰바위 ( Kunbawui Park ),윤민철 ( Minchul Yoon ),김동욱 ( Dong Wook Kim ),손광태 ( Kwang Tae Son ),하광수 ( Kwang Soo Ha ) 한국수산과학회 2021 한국수산과학회지 Vol.54 No.4
Although, mouse bioassay for the monitoring of azaspiracids (AZAs) toxins in shellfish has been used previously, the reported method has low sensitivity and it is time-consuming. Recently, there is an interest in the quantitative analysis of AZAs using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The purpose of this study is to verify the simultaneous analysis of AZAs in shellfish and tunicate in Korea using LC-MS/MS. To validate the method, linearity, limit of detection (LOD), limit of quantification (LOQ), precision, accuracy, and repeatability were determined. All standard compounds were analyzed within 7 min. The correlation coefficients (R<sup>2</sup>) of the standard solution was higher than 0.9995 (within the range of 0.8-10.0 μg/L). The LODs and LOQs of AZAs in shellfish were 0.08-0.16 μg/kg and 0.23-0.50 μg/kg, respectively. The accuracy and precision of the method for determining AZAs in shellfish were 87.1-93.0% and 1.23-4.91%, respectively. Consequently, the verified LC-MS/MS method is suitable to analyze AZAs in shellfish and tunicates in Korea.