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吴贵清,李瑞华,彭晓晴,黄晓兰,朱佳杰,吴雪萍.涠洲岛4种常见经济双壳贝类闭壳肌营养成分及重金属含量分析[J].广西科学,2025,32(1):47-58. [点击复制]
- WU Guiqing,LI Ruihua,PENG Xiaoqing,HUANG Xiaolan,ZHU Jiajie,WU Xueping.Nutrient Composition and Heavy Metal Content Analysis of Adductor Muscle in Four Common Economic Bivalves around the Weizhou Island[J].Guangxi Sciences,2025,32(1):47-58. [点击复制]
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| 涠洲岛4种常见经济双壳贝类闭壳肌营养成分及重金属含量分析 |
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吴贵清, 李瑞华, 彭晓晴, 黄晓兰, 朱佳杰, 吴雪萍
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| (广西民族大学海洋与生物技术学院, 广西南宁 530007) |
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| 摘要: |
| 为了解涠洲岛4种常见经济双壳贝类的营养成分及重金属含量状况，本研究对涠洲岛海域杂色蛤(Ruditapes variegata)、文蛤(Meretrix meretrix)、皱肋文蛤(Meretrix lyrata)和波纹巴非蛤(Paphia undulata)4种贝类闭壳肌的基本营养成分、氨基酸含量和重金属含量进行检测。采用氨基酸评分(AAS)、化学评分(CS)和必需氨基酸指数(EAAI)对闭壳肌氨基酸进行评价，同时利用重金属单因子污染指数(Pi)、综合污染指数(P)、单一目标危害系数(THQ)以及复合目标危害系数(TTHQ)对4种贝类进行健康风险评价。结果表明，杂色蛤的水分、粗蛋白、粗脂肪和粗灰分含量分别为83.80%、11.37%、1.51%和2.77%；文蛤分别为80.67%、10.85%、1.00%和1.34%；皱肋文蛤分别为81.17%、13.05%、1.14%和1.88%；波纹巴非蛤分别为77.84%、10.59%、0.53%和1.37%；闭壳肌中共检测出17种氨基酸，其中有7种必需氨基酸(Essential Amino Acid,EAA)，4种鲜味氨基酸(Delicious Amino Acid,DAA)，3种半必需氨基酸(Semi-Essential Amino Acid,SEAA)，3种非必需氨基酸(Non-Essential Amino Acid,NEAA)；根据AAS模式评分标准，4种贝类的第一限制性氨基酸分别为异亮氨酸(Ile)、缬氨酸(Val)、缬氨酸、苏氨酸(Thr)，根据CS模式评分标准，4种贝类的第一限制性氨基酸均为蛋氨酸(Met)+半胱氨酸(Cys)。4种贝类砷(As)、镉(Cd)和镍(Ni)的含量均超过了限量标准值(As≤0.100 mg/kg、Cd≤0.100 mg/kg、Ni≤0.300 mg/kg)。重金属污染评价显示，As、Cd和Ni是4种贝类主要的重金属污染元素。健康风险评价结果表明，4种贝类中As的THQ在成人和儿童中均大于1，TTHQ也均大于1，说明成人和儿童长期食用这些贝类存在潜在的重金属健康风险。 |
| 关键词: 涠洲岛 贝类 氨基酸 重金属含量 健康风险评价 |
| DOI：10.13656/j.cnki.gxkx.20250521.006 |
| 投稿时间：2024-08-22修订日期：2024-09-05 |
| 基金项目:广西自然科学基金项目(2020GXNSFBA159010)，广西民族大学引进人才启动基金项目(2017KJQD007)和广西壮族自治区大学生创新创业训练计划项目(S202310608040，S202310608200，S202310608048)资助。 |
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| Nutrient Composition and Heavy Metal Content Analysis of Adductor Muscle in Four Common Economic Bivalves around the Weizhou Island |
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WU Guiqing, LI Ruihua, PENG Xiaoqing, HUANG Xiaolan, ZHU Jiajie, WU Xueping
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| (School of Marine Science and Biotechnology, Guangxi Minzu University, Nanning, Guangxi, 530007, China) |
| Abstract: |
| In order to understand nutrient composition and heavy metal content of four common species of economic bivalves,this study detected the basic nutritional components,amino acid contents and heavy metal contents of the adductor muscles of four shellfish,namely Ruditapes variegata,Meretrix meretrix,M.lyrata,and Paphia undulata, in the sea area of Weizhou Island.The amino acid profile was evaluated based on the Amino Acid Score (AAS),Chemical Score (CS),and Essential Amino Acid Index (EAAI).The health risks associated with these bivalves were assessed based on the single factor pollution index （Pi),comprehensive pollution index (P),Target Hazard Quotient (THQ),and Total Target Hazard Quotient (TTHQ).The results revealed the moisture,crude protein,crude fat,and crude ash content was 83.80%,11.37%,1.51%,and 2.77% in R.variegata,80.67%,10.85%,1.00%,and 1.34% in M.meretrix,81.17%,13.05%,1.14%,and 1.88% in M.lyrata,and 77.84%,10.59%,0.53%,and 1.37% in P.undulata,respectively.A total of 17 amino acids were detected,including 7 Essential Amino Acids (EAA),4 Delicious Amino Acids (DAA),3 Semi-Essential Amino Acids (SEAA),and 3 Non-Essential Amino Acids (NEAA).The first limiting amino acids for the four species,according to the AAS model,were Ile,Val,Val,and Thr,while the CS model identified Met+Cys as the limiting amino acids.The heavy metal (As,Cd,and Ni) content exceeded the standard limits (As≤0.100 mg/kg,Cd≤0.100 mg/kg,Ni≤0.300 mg/kg).The evaluation of heavy metal pollution showed that As,Ni,and Cd were the main pollutant elements in the four species.The results of the health risk assessment revealed that the THQ of As in all the four bivalve species exceeded 1 for both adults and children,and the TTHQ also exceeded 1,indicating the potential health risks of long-term consumption of these bivalve species for both adults and children. |
| Key words: Weizhou Island bivalves amino acids heavy metal contents health risk assessment |
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