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Toxin composition and toxicity dynamics of marine gastropod Nassarius spp. collected from Lianyungang, China
Luo, X.1,2; Yu, R. -C.1; Wang, X. -J.1,3; Zhou, M. -J.1; Yu, RC (reprint author), Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
2012
发表期刊FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
ISSN1944-0049
卷号29期号:1页码:117-127
文章类型Article
摘要Consumption of nassariid gastropods often leads to poisoning incidents in some coastal provinces in China. To elucidate the pattern of toxicity dynamics and origin of toxins, samples of gastropod Nassarius spp. were collected from late May to early August 2007 from Lianyungang, Jiangsu province, where the poisoning incidents have been frequently reported. Toxicity was first screened with the mouse bioassay method, and tetrodotoxin and its analogues (TTXs) were analysed with high-performance liquid chromatography coupled with an ion-trap mass spectrometer (HPLC-MSn). The toxicity of nassariid N. semiplicatus showed an 'M'-shaped pattern of fluctuation during the sampling season. Two peaks of toxicity appeared in late May and late July. The maximum toxicity was recorded on 24 May, with the value of 846 mouse unit (MU) g(-1) of tissue (wet weight). TTX and its analogues trideoxyTTX, 4-epiTTX, anhydroTTX and oxoTTX were detected in the nassariid samples. TrideoxyTTX but not TTX was the major toxin in all the samples. No paralytic shellfish poison (PSP) was detected in the sample with the maximum toxicity by HPLC-FLD analysis. Variation of TTX content in the tissue of nassariid gastropods correlates well with the dynamics of toxicity. It is suggested that TTXs are the major toxins corresponding to the toxicity of the nassariids, and May and July are the high-risk seasons for consumption of nassariids, which is critical for the management of poisoning incidents.
关键词Seafood Natural Toxicants Chromatography - Lc/ms Bioassay
学科领域Chemistry, Applied ; Food Science & Technology ; Toxicology
DOI10.1080/19440049.2011.615069
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收录类别SCI
语种英语
WOS记录号WOS:000301934300013
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被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/12454
专题海洋生态与环境科学重点实验室
通讯作者Yu, RC (reprint author), Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
作者单位1.Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Minist Educ & Shanghai Ocean Univ, Key Lab Aquat Genet Resources Excavat & Utilizat, Shanghai 201306, Peoples R China
第一作者单位中国科学院海洋研究所
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Luo, X.,Yu, R. -C.,Wang, X. -J.,et al. Toxin composition and toxicity dynamics of marine gastropod Nassarius spp. collected from Lianyungang, China[J]. FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT,2012,29(1):117-127.
APA Luo, X.,Yu, R. -C.,Wang, X. -J.,Zhou, M. -J.,&Yu, RC .(2012).Toxin composition and toxicity dynamics of marine gastropod Nassarius spp. collected from Lianyungang, China.FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT,29(1),117-127.
MLA Luo, X.,et al."Toxin composition and toxicity dynamics of marine gastropod Nassarius spp. collected from Lianyungang, China".FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT 29.1(2012):117-127.
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