CAJ | 학술논문

采用超声波辅助碱性H2O2法从酒糟中分离半纤维素B（DGHB），研究碱性提取剂中H2O2体积分数、超声波功率和超声波时间等因素对DGI-IB得率的影响，并采用L9（3^3）正交试验对提取条件进行优化。结果表明，超声波辅助碱性H2O2法提取DGHB的最佳条件为：提取剂中的H2O2体积分数2．0％，超声波功率400W，超声波辐射时间15min。在该最佳条件下，DGHB得率为28．57％。傅里叶变换红外光谱分析表明，所提取的DGHB具有半纤维素多糖的特征吸收峰。该研究结果可为酒糟半纤维素分离的工业化应用提供参考。
채용초성파보조감성H2O2법종주조중분리반섬유소B（DGHB），연구감성제취제중H2O2체적분수、초성파공솔화초성파시간등인소대DGI-IB득솔적영향，병채용L9（3^3）정교시험대제취조건진행우화。결과표명，초성파보조감성H2O2법제취DGHB적최가조건위：제취제중적H2O2체적분수2．0％，초성파공솔400W，초성파복사시간15min。재해최가조건하，DGHB득솔위28．57％。부리협변환홍외광보분석표명，소제취적DGHB구유반섬유소다당적특정흡수봉。해연구결과가위주조반섬유소분리적공업화응용제공삼고。
The ultrasound-assisted extraction method of hemicelluloses B from distillers grains (DGHB) by alkaline hydrogen peroxide was studied to increase the extraction efficiency. The influences of factors such as volume fraction of H2O2, ultrasonic power, and ultrasonic time on yield of DGHB were also investigated respectively. On the basis of single factor experiments, the extraction conditions were optimized with orthogonal experiment. The results showed that the optimal conditions for DGHB extraction were H2O2 volume fraction of 2.0%, ultrasonic power of 400 W and ultrasonic time of 15 min. Under these optimal conditions, the yield of DGHB reached 28.57%. The obtained DGHB was qualitatively analyzed by Fourier transform infrared spectroscopy (FT-IR). FT-IR showed that DGHB had characteristic absorption peaks of polysaccharide. The results could provide a reference for industrialization of hemicelluloses production.