从花生壳中生物制氢增强的机制：温度预处理范围从-80 到 100°C。
Mechanisms of biohydrogen recovery enhancement from peanut shell by C. guangxiense: Temperature pretreatment ranges from -80 to 100 °C.
机构信息
Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, and School of Resource & Civil Engineering, Northeastern University, Shenyang 110819, China.
College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, China.
出版信息
Bioresour Technol. 2020 May;304:123026. doi: 10.1016/j.biortech.2020.123026. Epub 2020 Feb 13.
The potential of low-cost bioenergy recovery from peanut shell was limited for its complex cellulose structure. In order to enhance the total reducing sugar (TRS) yield for bio-H production, peanut shell with heat (HT, 50-100 °C) or freezing pretreatment (FT, -80 to 0 °C) under different duration (0.5-12 h) was investigated. For uncovering the enhancement mechanisms, morphological feature and crystalline structure were analyzed by scanning electron microscope (SEM) and X-ray powder diffraction (XRD). The optimal pretreatment of 50 °C for 12 h was obtained with TRS yield increased 73.6%, while the H yield of 1.25 ml/mg-TRS was peaked with pretreatment at -80 °C. The SEM and XRD further demonstrated that mechanisms of HT and FT were realized through different ways, which were cracking and collapsing in HT, and delamination and peeling in FT, respectively.
从花生壳中回收低成本生物能源的潜力因其复杂的纤维素结构而受到限制。为了提高生物氢生产的总还原糖（TRS）产量，研究了在不同时间（0.5-12 小时）下用热（HT，50-100°C）或冷冻（FT，-80 至 0°C）预处理花生壳。为了揭示增强机制，通过扫描电子显微镜（SEM）和 X 射线粉末衍射（XRD）分析了形态特征和晶体结构。在 50°C 下预处理 12 小时得到了最佳的 TRS 产率，增加了 73.6%，而在 -80°C 下预处理时，H 的产率达到了 1.25ml/mg-TRS 的峰值。SEM 和 XRD 进一步表明，HT 和 FT 的作用机制是通过不同的方式实现的，HT 是开裂和坍塌，FT 是分层和剥落。
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