Effect of aeration mode on the red pigment production by monascus buber on rice during fermenting in the packed bed bioreactor

Q3 Agricultural and Biological Sciences Asia-Pacific Journal of Science and Technology Pub Date : 2016-07-15 DOI:10.14456/KKURJ.2016.13
T. Chysirichote
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引用次数: 1

Abstract

Solid state fermentation for a red pigment production of Monascus ruber NBRC 32318 on rice in an aerated packed bed bioreactor was studied. The constant and the inconstant aeration rates were studied in this research. The constant rates were performed using 0.05 and 0.10 vvm during fermentation. The inconstant ones were conducted by changing the aeration rate when the growth of fungi entered the stationary phase. The inconstant aeration were studied in three different modes composed of 1) starting with 0.10 vvm aeration and then changing to 0.05 vvm one, 2) starting with 0.10 vvm aeration and then increasing to 0.15 vvm one, and 3) starting with 0.05 vvm aeration and then increasing to 0.10 vvm one. The growth and the density of red pigment were analyzed along the height of packed bed. The results show the effect of changing aeration rate during fermentation on the red pigment production. The appropriated aeration rate seemed to be  relative with the height of bed.
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填料床生物反应器发酵过程中曝气方式对水稻红曲生成红色素的影响
研究了橡胶红曲霉NBRC 32318在大米上的固体发酵生产红色素的工艺。研究了恒定曝气速率和非恒定曝气速率。发酵过程中采用0.05和0.10 vvm进行恒速发酵。非恒定实验是在真菌生长进入固定阶段时,通过改变曝气速率进行的。研究了三种不同的不恒定曝气模式:1)从0.10 vvm曝气量开始,然后改变到0.05 vvm one; 2)从0.10 vvm曝气量开始,然后增加到0.15 vvm one; 3)从0.05 vvm曝气量开始,然后增加到0.10 vvm one。分析了红色素的生长和密度随填料床高度的变化。结果表明,发酵过程中不同曝气率对红色素的产生有影响。适宜的曝气率似乎与床的高度有关。
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来源期刊
Asia-Pacific Journal of Science and Technology
Asia-Pacific Journal of Science and Technology Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
0.90
自引率
0.00%
发文量
0
审稿时长
8 weeks
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