College of Animal Science and Veterinary Medicine, Henan Agricultural University, 95 Wenhua Road, Zhengzhou 450002, China.
Bioresour Technol. 2012 Jan;104:587-92. doi: 10.1016/j.biortech.2011.10.070. Epub 2011 Nov 3.
In order to increase nutrient values of corn stover, effects of steam explosion (2.5 MPa, 200 s) and Aspergillus oryzae (A. oryzae) fermentation on cellulose and lignin degradation were studied. The results showed the contents of cellulose, hemicellulose and lignin in the exploded corn stover were 8.47%, 50.45% and 36.65% lower than that in the untreated one, respectively (P<0.05). The contents of cellulose and hemicellulose in the exploded and fermented corn stover (EFCS) were decreased by 24.36% and 69.90%, compared with the untreated one (P<0.05); decreased by 17.35% and 38.59%, compared with the exploded one (P<0.05). The scanning electron microscope observations demonstrated that the combined steam explosion and fermentation destructed corn stover. The activities of enzymes in EFCS were increased. The metabolic experiment showed that about 8% EFCS could be used to replace corn meal in broiler diets, which made EFCS become animal feedstuff possible.
为提高玉米秸秆的营养价值，研究了蒸汽爆破（2.5 MPa，200 s）和米曲霉（Aspergillus oryzae，A. oryzae）发酵对纤维素和木质素降解的影响。结果表明，与未处理组相比，爆破玉米秸秆的纤维素、半纤维素和木质素含量分别降低了 8.47%、50.45%和 36.65%（P<0.05）。与未处理组相比，爆破发酵玉米秸秆（EFCS）的纤维素和半纤维素含量分别降低了 24.36%和 69.90%（P<0.05）；与爆破组相比，分别降低了 17.35%和 38.59%（P<0.05）。扫描电子显微镜观察表明，联合蒸汽爆破和发酵破坏了玉米秸秆。EFCS 中的酶活性增加。代谢实验表明，约 8%的 EFCS 可替代肉鸡日粮中的玉米粉，这使得 EFCS 成为可能的动物饲料。
