| 摘要: |
| 海藻中含有丰富的多不饱和脂肪酸，但同时也富集一定浓度的有机氯农药，食用海藻摄入多不饱和脂肪酸的同时也会摄入这类污染物，其共摄入风险分析评估是食品安全领域必须关注的科学问题。本文以胶州湾近岸采集的条斑紫菜、坛紫菜、海带、裙带菜、龙须菜等5 种常见经济海藻为研究对象，分析了其脂肪酸和有机氯农药组成情况。结果表明，这5种海藻中脂肪酸以棕榈酸、油酸、亚油酸、花生四烯酸和DHA 为主，n-6和n-3 PUFA 的比值远小于建议值4，均有较高的营养价值；5种海藻中六六六类农药主要残留的是γ-HCH，滴滴涕类农药中P,P’-DDD、P,P’-DDT 残留量较高。对PUFAs 中的有效成分EPA DHA 与有机氯农药污染物共摄入时对人体的益害风险进行了评估，发现对于健康成人在达到EPA DHA 摄入要求下，食用这5种海藻带来的多不饱和脂肪酸与有机氯农药污染物共摄入引起非致癌或致癌的健康风险较低。 |
| 关键词: 脂肪酸，有机氯农残，共摄入风险评估，海藻 |
| DOI：10.11693/hyhz20121228002 |
| 分类号: |
| 基金项目:中国科学院仪器设备功能开发技术创新项目 |
附件 |
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| Risk Assessment of Ingesting Polyunsaturated fatty acids andOrganochlorine Pesticide Residues in five Seaweeds from Jiaozhou Bay |
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pengquancai,songjinming,lichen and yulidong
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Institute of Oceanology, Chinese Academy of Sciences,Institute of Oceanology, Chinese Academy of Sciences,Institute of Oceanology, Chinese Academy of Sciences,Institute of Oceanology, Chinese Academy of Sciences
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| Abstract: |
| Seaweed contains high levels of polyunsaturated fatty acids (PUFAs) and a certain concentration of organochlorine pesticides (OCPs). The risk assessment of the seaweed is important in the field of food security. Five economic Seaweed: Porphyra. yezoensis. veda、Porphyra haitanensis Chang et Zheng、Laminaria japonica Aresch、Undaria pinnatifida Sur. and Gracilaria lemaneiformis were collected from Jiaozhou Bay, China. Their OCPs and fatty acids were analyzed. The rusults obtained showed that palmitic acid, oleic acid, linoleic acid, arachidonic acid and docosahexaenoic acid were the predominant fatty acids in the seaweed species, and the ratio of n-6/n-3 PUFA were more than ratio of 4 proposed, which indicated that the five seaweeds have higher nutritive value.The main residue of OCPs in the seaweed species were γ-HCH, P,P’-DDD and P,P’-DDT. The risk assessment of co-ingestion of the OCPs and active EPA DHA from PUFAs showed that co-ingestion of the OCPs and active EPA DHA from PUFAs of the Seaweed species would likely not result in the healthy risk of cancer or no cancer when ingesting minimum amount of EPA DHA intake per day for a healthy adult via the consumption of seaweeds. |
| Key words: fatty acid organochlorine pesticide residues ingesting risk assessment seaweed |
