9. It decompression sublime at 90℃,SW was obtained. ②Taking 500ml pretreated culture solution of strains 10.2411, braise to ointment at 50℃,extracted with ethanol(Soxhlet 24h), callback ethanol,the residues braise, adjust to pH 10 with 2mol/L ammonia , airing, distill 5 times using ammoniac chloroform without water, filtrate infusibility matter, braise, crude SW was obtained.
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