生物吸附
化学
弗伦德利希方程
酵母
展青霉素
朗缪尔
吸附
色谱法
生物量(生态学)
核化学
制浆造纸工业
食品科学
吸附
生物化学
有机化学
生物
真菌毒素
农学
工程类
作者
Caixia Guo,Tianli Yue,Yahong Yuan,Zhouli Wang,Yaodong Guo,Wang Ling,Zhao Li
出处
期刊:Food Control
[Elsevier]
日期:2013-07-01
卷期号:32 (1): 99-104
被引量:42
标识
DOI:10.1016/j.foodcont.2012.11.009
摘要
Waste cider yeast is a natural by-product generated through the production of fermentable beverages. In this work, the biosorption of patulin (PAT) from apple juice using waste cider yeast was investigated. The yeast cells were treated with caustic, ethanol and heats. Among the treatments, the highest PAT uptake (58.29%) was obtained with the caustic treated waste yeast. The effects of pH and initial concentration of PAT were assessed. The results showed that the adsorption percentage of PAT increased simultaneously with the increase of pH and approached equilibrium at pH 4.5. The removal of PAT increased with decreasing of toxin levels. The experimental data were analyzed using the Langmuir and Freundlich equations. It has been observed that the adsorption equilibrium was best described by the Langmuir model. The Langmuir constants were qmax (μg/g) = 8.1766 and b (L/mg) = 0.0640. In packed bed column studies, it was found that Ca-alginate gel was a good biosorbent for PAT removal and immobilized caustic treated yeast particles in the gel increased the biosorption capacity of the gel.
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