Effects of rabbit feces extract fermented by EM bacteria on the growth and biochemical components of Chlorella vulgaris
The effects of rabbit feces extract fermented by EM kitchen waste composting bacteria on the growth and biochemical components such as protein,soluble sugar and chlorophyll of Chlorella vulgaris were studied.The results showed that in the treatment group of rabbit feces extract,the Chlorella vulgaris in the 7％concentration group reached the maximum standing stock at the 12th day,which was 1.06 X 107 cells/mL,while the maximum standing stock in the control group was only 6.45X106 cells/mL.The growth performance of Chlorella vulgaris in the 7％concentration group was significantly different from that in the control group.On the 8th day,the algal cell density of 5％and 7％concentration groups were close to the maximum standing stock of the control group,which were 6.02X106 cells/mL and 6.80X106 cells/mL,respectively,indicating that the appropriate concentration of rabbit manure extract treatment could stimulate the growth of Chlorella vulgaris.However,in the low concentration group,the growth of Chlorella vulgaris in the 3％concentration group was not ideal,but the protein accumulation was the highest,reaching 17.31 mg/L,which was significantly different from the control group(P＜0.05).The content of soluble sugar in the 6％concentration group was the highest,which was 332.7 mg/L,and the contents of chlorophyll a,chlorophyll b and carotenoid were 3.19 mg/L,1.58 mg/L and 0.57 mg/L,respectively,which were significantly different from those in the control group.
EM bacteriarabbit feces extractChlorella vulgarisgrowthbiochemical components
万方数据
维普
