The textile industry discharges up to 5 % of their dyes in aqueous effluents. Here, use of spent mushroom substrate (SMS) of commercial white button mushroom production and its aqueous extract, SMS tea, was assessed to remove textile dyes from water. A total of 30–90 % and 5–85 % of the dyes was removed after a 24 h incubation in SMS and SMS tea, respectively. Removal of malachite green and remazol brilliant blue R was similar in SMS and its tea. In contrast, removal of crystal violet, orange G, and rose bengal was higher in SMS, explained by sorption to SMS and by the role of non-water-extractable SMS components in discoloration. Heat-treating SMS and its tea, thereby inactivating enzymes, reduced dye removal to 8–58 % and 0–31 %, respectively, indicating that dyes are removed by both enzymatic and non-enzymatic activities. Together, SMS of white button mushroom production has high potential to treat textile-dye-polluted aqueous effluents.

中文翻译：

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双孢蘑菇废菌底物对纺织染料的变色作用


纺织工业在废水中排放高达 5% 的染料。在这里，对商业白蘑菇生产中的废蘑菇底物 (SMS) 及其水提取物 SMS 茶的使用进行了评估，以去除水中的纺织染料。在 SMS 和 SMS 茶中孵育 24 小时后，分别去除了总共 30–90% 和 5–85% 的染料。 SMS及其茶中孔雀石绿和雷马唑亮蓝R的去除效果相似。相比之下，SMS 中结晶紫、橙 G 和玫瑰红的去除率较高，这可以通过 SMS 的吸附以及不可水萃取的 SMS 成分在变色中的作用来解释。对 SMS 及其茶进行热处理，从而使酶失活，将染料去除率分别降低至 8-58% 和 0-31%，表明染料是通过酶活性和非酶活性去除的。总之，白蘑菇生产的 SMS 在处理纺织染料污染的废水方面具有很大的潜力。