Optimization of anaerobic acidogenesis of an aquatic plant, Canna indica L., by rumen cultures.
Anaerobic acidogenesis of Canna indica L. (canna) by rumen cultures was investigated in this study. Fractional factorial design (FFD) was used to explore the roles of the growth factors such as substrate concentration and pH in such a bioconversion, whereas response surface methodology (RSM) was employed for optimizing this acidogenic process. The optimum substrate concentration and pH for the acidogenesis of canna were found to be 8.2 g VSl(-1) and 6.6, respectively, and the corresponding degradation efficiency of canna was 52.3%. Volatile fatty acid yield peaked at 0.362 g g(-1)VS degraded at a substrate concentration of 6.9 g VSl(-1)and pH 6.7. These results were confirmed by the experimental results.
Yue
Zheng-Bo
ZB
School of Chemistry, University of Science & Technology of China, Hefei 230026, China.
Yu
Han-Qing
HQ
Harada
Hideki
H
Li
Yu-You
YY
D000143:Acids / Q000378:metabolism*; D000693:Anaerobiosis; D000818:Animals; D001673:Biodegradation, Environmental; D027581:Cannabaceae / Q000378:metabolism*; D003470:Culture Media; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D008954:Models, Biological; D012417:Rumen / Q000382:microbiology*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification / Q000378:metabolism*; D018508:Water Purification / Q000379:methods*
D000143:Acids; D003470:Culture Media; D014874:Water Pollutants, Chemical