LAPETOX - Laboratory of Toxicological Research, University of Sorocaba, Sorocaba, SP, Brazil.
LAPETOX - Laboratory of Toxicological Research, University of Sorocaba, Sorocaba, SP, Brazil; LAMINFE - Laboratory of Industrial Microbiology and Fermentation Process, University of Sorocaba, Sorocaba, SP, Brazil.
Chemosphere. 2019 Dec;237:124515. doi: 10.1016/j.chemosphere.2019.124515. Epub 2019 Aug 7.
Residues from pharmaceutical products are found in effluents and in other environmental matrices such as soil and surface waters. Chitin and chitosan are highly adsorptive substances present in mushrooms such as champignon (Agaricus bisporus) and shiitake (Lentinula edodes). This study evaluated the adsorption efficiency of shiitake and champignon stalks, and shiitake substrate in water contaminated with paracetamol and 17 α-ethynyl estradiol (EE2). Stalks and substrate were dried and ground. Particles were physically evaluated and chemically characterized. Adsorption kinetic and isotherms were carried out for EE2 and paracetamol. Shiitake and champignon stalks had high percentage of porosity, closed and open pores. All bioproducts from mushroom had chemical groups similar to chitosan standard. However, the degree of deacetylation of chitosan was higher in shiitake (28.3%). In EE2 adsorption kinetics, shiitake and champignon stalks showed 100% removal in 20 and 30 min, respectively. Shiitake substrate showed 80% removal. In paracetamol adsorption kinetics, all bioproducts presented more than 95% removal. In EE2 adsorption isotherm, the maximum adsorption capacities (q) to shiitake and champignon stalks and shiitake substrate were 5.62, 18.95 and 0.31 mg/g, respectively. For paracetamol adsorption isotherm, q to shiitake and champignon stalks were 34.20 and 338.08 mg/g, respectively. In conclusion, shiitake and champignon stalks (specially champignon) had the best results regarding the adsorption of EE2 and paracetamol. Reuse of discarded mushroom waste reduces the environmental impact and can add value to the product.
药物产品的残留被发现于废水以及土壤和地表水等其他环境基质中。几丁质和壳聚糖是存在于蘑菇（如双孢蘑菇（Agaricus bisporus）和香菇（Lentinula edodes））中的高吸附性物质。本研究评估了香菇和双孢蘑菇菌柄以及香菇栽培基质对水相中扑热息痛和 17α-乙炔雌二醇（EE2）的吸附效率。菌柄和基质被干燥和粉碎。对颗粒进行物理评估和化学特性分析。对 EE2 和扑热息痛进行了吸附动力学和等温线研究。香菇和双孢蘑菇菌柄具有高比例的孔隙率、封闭和开放孔隙。蘑菇的所有生物制品都具有类似于壳聚糖标准的化学基团。然而，香菇中的壳聚糖脱乙酰度（28.3%）更高。在 EE2 吸附动力学中，香菇和双孢蘑菇菌柄分别在 20 和 30 分钟内达到 100%去除率。香菇栽培基质达到 80%去除率。在扑热息痛吸附动力学中，所有生物制品的去除率均超过 95%。在 EE2 吸附等温线中，香菇和双孢蘑菇菌柄以及香菇栽培基质的最大吸附容量（q）分别为 5.62、18.95 和 0.31 mg/g。对于扑热息痛吸附等温线，香菇和双孢蘑菇菌柄的 q 值分别为 34.20 和 338.08 mg/g。综上所述，香菇和双孢蘑菇菌柄（特别是双孢蘑菇）在 EE2 和扑热息痛的吸附方面表现最佳。再利用废弃的蘑菇废物可减少对环境的影响，并为产品增值。
