Removing Heavy Metals in Cultured Oysters with Macroalgae

doi:10.11924/j.issn.1000-6850.casb17060126

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (31): 160-164.doi: 10.11924/j.issn.1000-6850.casb17060126

Special Issue: 土壤重金属污染；水产渔业

Received:2017-06-28 Revised:2017-10-16 Accepted:2017-09-10 Online:2017-11-27 Published:2017-11-27

Abstract

Abstract: To effectively remove the heavy metals in cultured oysters, we separately cultured oyster (Crassostrea angulate) in concrete tanks indoors with sand-filtered seawater (control), macroalga (Gracilaria lemaneiformis), macroalga+chitosan, and macroalga+ascorbyl polyphosphate for 14 days. The oysters were sampled on day 0, day 7 and day 14 for determining concentrations of Cu2+, Cd2+ and Pb2+. Data were analyzed and compared to evaluate the macroalga ability of removing heavy metals in oysters. The results showed that three treatments of macroalga, macroalga+chitosan, and macroalga+ascorbyl polyphosphate all significantly decreased the concentrations of heavy metals in oysters (P<0.05). Macroalga + chitosan showed the best removing effect, and the concentrations of Cu2 + , Cd2 + and Pb2 + were respectively 1.93, 0.58, 0.33 mg/kg (wet weight) on day 14, which were all lower than the limits in GB 2762-2012. Therefore, it is completely feasible to remove the heavy metals in cultured oysters by employing the method of combining macroalgae with chitosan.

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References

[1] 汪何雅, 杨瑞金, 王璋. 牡蛎的营养成分及蛋白质的酶法水解[J]. 水产学报, 2003,27(2):163-168.
[2] 赵信武主编. 2016年中国渔业统计年鉴[S]. 北京: 中国农业出版社.
[3] 龚倩, 蔡友琼, 马兵, 等. 对贝类产品标准中重金属限量指标的探讨[J]. 海洋渔业 , 2011, 33(2): 2-8.
[4] 王增焕, 贾晓平, 林钦, 等. 广东沿海近江牡蛎重金属含量特征及其风险分析[J]. 农业环境科学学报, 2012, 31(3):607-612.
[5] 江天久, 牛涛. 双壳贝类体内重金属的净化方法[P]. 中国发明专利：ZL200510036014.X. 2006.02.22.
[6] 姚茹, 黎祖福. 牡蛎养殖的生态净化方法[P]. 中国发明专利, 201410382413.0. 2014.11.19.
[7] 孙继鹏, 汪东风, 李国云, 等. 壳寡糖钙、镁配合物对栉孔扇贝体内镉的脱除[J]. 中国海洋大学学报, 2010,42(2), 033-037.
[8] 李子琪, 孟倩, 孙凤清, 等. 壳聚糖及其衍生物脱除贝类中重金属的机理及应用研究进展. Food Machinery(食品与机械), 2016, 32(2): 188-192.
[9] 潘进芬. 海藻对水体中重金属的吸附研究[D]. 青岛：中国科学院海洋研究所, 2000.
[10] 王广策, 周秀梅, 李颖. 一种利用大型海藻吸附环境中重金属离子的方法[P]. 中国发明专利,201410112587.5. 2015.02.25.
[11] 郝林华, 翟毓秀, 李晓川. 采用微波消解及 ICP—AES 法测定水产品、饲料中的微量元素镉 [J]. 海洋水产研究 , 2000, 21(1):52-56.
[12] Ting YP, Prince IG, Lawson F. Uptake of cadmium and zinc by the alga Chlorella vulgaris:Ⅱ. Multi-ion situation[J]. Biotechnology Bioengineering, 1991, 37(5):445-455.
[13] Ting YP, Lawson F, Prince IG. Uptake of cadmium and zinc by the alga Chlorella vulgaris: Part 1. Individual ion species [J]. Biotechnology Bioengineering, 1989, 34(7):990-999.
[14] 徐鲁荣. 大型海藻对重金属的吸附研究[D]. 福建: 厦门大学海洋与环境学院, 2002.
[15] Wang WX, Fisher NS. Effects of calcium and metabolic inhibitors on trace element uptake in two marine bivalves. Journal of Experimental Marine Biology and Ecology, 1999 (236): 149-164.
[16] Tessier A, Turner D R. Metal speciation and bioavailability in aquatic systems[J]. Chemistry International--Newsmagazine for IUPAC, 1996, 24(2):20-20.
[17] Amiard-Triquet C, Rainglet F, Larroux C, et al. Metal lothioneins in Arctic bivalves[J]. Ecotoxicology Environmental Safety. 1998, 41(1):96-102.
[18] 中华人民共和国卫生部. GB 2762-2012食品中污染物限量[S] . 北京: 中国标准出版社. 2012.
[19] 刘发义, 吴玉霖. 重金属污染物在海洋生物体内的积累和解毒机理[J]. 海洋科学,1988,(5):63-66.
[20] Mclntyre AD, Mills CF. Ecological toxicology research-effects of heavy metal and organohalogen compounds [M]. New York: Plenum Press, 1975.
[21] Crini G. Recent developments in polysaccharide-based materials used as adsorbents in waste water treatment[J]. Progress in Polymer Science, 2005, 30(1):38-70.
[22] 魏婉楚. 壳聚糖的改性及其应用[J]．中山大学研究生学刊(自然科学版.医学版), 2013, 34 (1):1-12.