Study on Technology of Removing Heavy Metals from Seaweed by Response Surface Method

doi:10.3969/j.issn.1673-1689.2015.01.016

Home > Archive>Volume 34, Issue 1, 2015 >94-101. DOI:10.3969/j.issn.1673-1689.2015.01.016

Study on Technology of Removing Heavy Metals from Seaweed by Response Surface Method
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                        10.3969/j.issn.1673-1689.2015.01.016
                    
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The Cd, Cr, Pb, As content of seaweed exceed the national standard. To make the heavy metal content in seaweed reduce to the national standard and provide basis for safe eating of seaweed, the response surface method was applied to optimize the conditions of the heavy metals removal from seaweed. The quadratic polynomial model of removal of heavy metals in seaweed was established and analyzed, which showed the best conditions of heavy metal removal from seaweed：the pH of removal liquid 2, time 4 h, the ratio of solvent to material 125 mL/g. Under these conditions, the content of Cd、Cr、Pb、As（total As）in seaweed were 0.75、0.63、0.81、14.95 mg/kg and the rate of removal were 61.14%、58.28%、70.97%、40.70%.

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FAN Lin, LOU Yongjiang, CHEN Xiaofang, SUN Peixuan. Study on Technology of Removing Heavy Metals from Seaweed by Response Surface Method[J]. Journal of Food Science and Biotechnology,2015,34(1):94-101.

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Online: February 06,2015
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