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首页> 外文会议>International Conference on Energy Conversion and Efficient Utilization of Woody Biomass(CECUWB); 20060514-16; Beijing(CN) >THE FERMENTATION CHARACTERS OF VINEGAR RESIDUE AND SOME NATURAL MATERIALS
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THE FERMENTATION CHARACTERS OF VINEGAR RESIDUE AND SOME NATURAL MATERIALS

机译：醋残渣和某些天然材料的发酵特性

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Solid state fermentation is an attractive process to produce cellulase economically due to its lower capital investment and lower operating expenses. General natural materials in this research include vinegar residue, wheat bran, rice bran and wheat straw. Cellulase production was carried out by solid state fermentation using materials above, as the substrate of Trichoderma Koningii. The ingredients of natural materials, associated with effects of water content, time and nitrogen sources on cellulase synthesis were studied. A comparatively higher cellulase activity ( > 4 IU/g koji) was obtained in the fermentation batch. The optimum culture time of vinegar residue, wheat bran, and wheat straw are 72h, but that of rice bran is 60 h. Total water contents of wheat bran, rice bran and wheat straw shouldn't be more than 50%, and that of vinegar residue should not be beyond 60%. It was also proved that nitrogen salts contributed a lot to fermentation. (NH_4)_3 PO_4 and urea have got better results of promoting enzyme activity.
机译：固态发酵由于其较低的资本投资和较低的运营成本而成为经济地生产纤维素酶的有吸引力的方法。本研究中的一般天然材料包括醋渣，麦麸，米糠和麦秸。使用上述材料作为木霉木霉的底物，通过固态发酵进行纤维素酶的生产。研究了天然材料的成分，以及水分，时间和氮源对纤维素酶合成的影响。在发酵批次中获得了相对较高的纤维素酶活性（> 4 IU / g曲液）。醋渣，麦麸和麦秸的最佳培养时间为72h，而米糠的最佳培养时间为60h。麦麸，米糠和麦秸的总水分不应超过50％，醋渣的总水分不应超过60％。还证明了氮盐对发酵的贡献很大。 （NH_4）_3 PO_4和尿素具有更好的促进酶活性的作用。

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