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大孔树脂对紫甘薯色素的静态吸附参数研究

DOI: 10.7685/j.issn.1000-2030.2006.04.024, PP. 115-118

Keywords: 紫甘薯色素,大孔树脂,吸附

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Abstract:

选取4种大孔树脂(AB-8、S-8、NAK-Ⅱ及NKA-9)吸附紫甘薯色素,研究了大孔树脂吸附过程中的静态吸附动力学和AB-8大孔树脂的静态吸附热力学。结果表明AB-8大孔树脂是较理想的吸附树脂,其吸附平衡速率常数为每分钟0.0246,吸附过程和Freundlich经验公式拟合较好;当溶液的色素含量为0.992(以A535表示)、吸附温度为40℃、吸附时间为30min时具有最佳的吸附效果。

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