Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, Eskişehir, Turkey.
Department of Chemistry, Graduate School of Natural and Applied Sciences, Eskişehir Osmangazi University, Eskişehir, Turkey.
J Sci Food Agric. 2019 Mar 15;99(4):1850-1861. doi: 10.1002/jsfa.9379. Epub 2018 Nov 8.
Contamination of food, feed, beverages and even drinking water with biotoxins is a growing global concern because of their potential health risks. In this work, surface-modified sugar beet pulp waste was used for the biosorptive removal of zearalenone biotoxin from contaminated aquatic media.
Infrared, Boehm titration, BET (Brunauer-Emmett-Teller) surface area and point of zero charge analysis were employed for surface characterization. Kinetic and equilibrium studies showed that biotoxin biosorption was well predicted by the pseudo-second-order kinetic model and the Langmuir isotherm model. Zearalenone was removed from the solution over a wide pH range (3.0-8.0) and within a short time (15 min). Maximum uptake capacity of modified biomass was recorded as 23.30 ± 0.17 g kg . Highest removal yield in a dynamic flow mode (94.56 ± 0.13%) was achieved at 2 mL min flow rate using 30 mg biosorbent. Regeneration experiments revealed high reusability potential of suggested biosorbent. Moreover, its application potential was tested in spiked samples of malt, beer and canned corn liquid.
Detoxification potential of this renewable biomass was significantly enhanced after modification. Modified biomass could be used as an efficient and low-cost green-type material with good application potential for zearalenone detoxification. © 2018 Society of Chemical Industry.
由于生物毒素可能带来健康风险，食物、饲料、饮料甚至饮用水受到生物毒素污染是一个日益严重的全球性问题。在这项工作中，我们使用经过表面修饰的糖用甜菜渣废料从受污染的水生介质中吸附去除玉米赤霉烯酮生物毒素。
采用红外、Boehm 滴定、BET（Brunauer-Emmett-Teller）表面积和零电荷点分析对表面特性进行了表征。动力学和平衡研究表明，生物毒素的吸附很好地符合拟二级动力学模型和 Langmuir 等温线模型。玉米赤霉烯酮可以在很宽的 pH 值范围（3.0-8.0）和较短的时间（15 分钟）内从溶液中被去除。改性生物质的最大吸附容量为 23.30±0.17 g kg-1。在 2 mL min-1的流速下，使用 30 mg 吸附剂在动态流动模式下实现了最高的去除率（94.56±0.13%）。再生实验表明，所提出的吸附剂具有很高的可重复使用潜力。此外，还在麦芽、啤酒和罐装玉米液体的加标样品中测试了其应用潜力。
经过修饰后，这种可再生生物质的解毒潜力显著增强。改性生物质可用作一种高效、低成本的绿色材料，在玉米赤霉烯酮解毒方面具有良好的应用潜力。 © 2018 英国化学学会。
