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以灵芝真菌为试材,研究了10L发酵罐发酵培养好氧型灵芝真菌条件下,溶氧控制条件对生产灵芝酸产量的影响。结果表明:溶氧对灵芝真菌发酵生产灵芝酸的影响较大,高通气量有利于缩短发酵时间,适宜的通气量为0.4L·L-1·min-1,此条件下,菌体和灵芝酸的最大产量分别为8.27g/L和171.26mg/L;相对初始发酵条件,菌体和灵芝酸最大产量分别提高13.13%和13.28%;相对于低通气量,菌体和灵芝酸达到最大产量的时间缩短12h;表明0.4L·L-1·min-1的通气量较适宜于10L发酵罐发酵生产灵芝酸。
Using Ganoderma lucidum as test material, the effects of dissolved oxygen control conditions on the production of Ganoderma lucidum were studied under the condition of 10 g fermentor cultured aerobic Ganoderma lucidum. The results showed that dissolved oxygen had a significant effect on the production of Ganoderma lucidum by fungus Ganoderma lucidum. The high aeration rate was beneficial to shorten the fermentation time and the suitable aeration volume was 0.4L·L-1 · min-1. Under these conditions, The maximum yield was 8.27g / L and 171.26mg / L, respectively. Compared with the initial fermentation conditions, the maximum yield of mycelium and ganoderic acid increased by 13.13% and 13.28%, respectively. Compared with low aeration, Time shortened 12h; that 0.4L · L-1 · min-1 aeration is more suitable for fermentation of 10L fermenter Ganoderma acid production.