菌丝黑色素检测结果
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为了测量Group1和Group2的黑色素含量,将菌株在马铃薯葡萄糖肉汤(PDB)培养基中室温下培养2周。每个处理进行4个生物重复。菌丝过滤后称重,在0.5 M NaOH和100°C水浴条件下放置5 h,抽提黑色素。提取液冷却后,用浓盐酸酸化至pH2.0,沉淀析出,10, 000 g离心15 min,得到黑色素沉淀。用 0.5 M的NaOH溶液溶解黑色素,在459 nm测定吸光值。
To measure the melanin content of Group 1 and Group 2, strains were cultured in potato dextrose broth (PDB) medium at room temperature for 2 weeks. Four biological replicates were performed for each treatment. After filtration, the mycelia were weighed, and then incubated in 0.5 M NaOH in a water bath at 100°C for 5 hours to extract melanin. After the extract was cooled, it was acidified with concentrated hydrochloric acid to pH 2.0 to precipitate melanin, followed by centrifugation at 10,000 × g for 15 minutes to obtain the melanin precipitate. The precipitate was dissolved in 0.5 M NaOH solution, and the absorbance was measured at 459 nm.




