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玉米秸秆稀酸预处理条件对糠醛类抑制物产生的影响
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Research on the factors brought by furfural inhibitor during acid-pretreatment of corn stover
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    摘要:

    以玉米秸秆为原料,探讨稀硫酸预处理玉米秸秆过程中影响糠醛类抑制物产生的因素,运用偏相关性分析法分析不同预处理条件与还原糖、糠醛的相关性。分析得知,影响预处理液中糠醛类抑制物产生的主要因素是硫酸浓度,二者呈正相关。预处理温度和时间与糠醛浓度显著相关,而固液比对糠醛类抑制物的产生没有显著影响。实验结果表明,当硫酸浓度为1%、预处理温度120 ℃、时间90 min,固液比1∶10时预处理液中糠醛浓度为0.99 mg/mL,还原糖浓度为27.6 mg/mL。

    Abstract:

    To explore the factors that affect the generation of furfural inhibitor during the process, corn stover was pretreated using diluted sulfuric acid. The correlation between pretreatment conditions and reducing sugar and furfural was analysed by partial correlation. The analysis showed that the main factor affecting furfural generation was the concentration of the sulfuric acid. There was a positive correlation between the concentration of furfural and sulfuric acid. Pretreatment temperature and time were associated with the furfural concentration significantly; however the solid〖CD*2〗liquid ratio was not associated with the generation of furfural. The results showed that the optimal results were achieved by using 1% sulfuric acid to pretreat the corn stover at 120 ℃ for 90 minutes and ratio of solid to liquid 1∶10, as results, the furfural concentration was measured as 0.99 mg/mL with reducing sugar at 27.6 mg/mL.

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张莎莎,张坤,陈晓晓,王晓俊,左小明,薛冬桦.玉米秸秆稀酸预处理条件对糠醛类抑制物产生的影响[J].粮油食品科技,2015,23(4):88-92.

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  • 在线发布日期: 2015-09-02
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