A novel mind-set, termed lignin-first biorefinery, is bewitching to synchronously boost lignin output for entirely lignocellulosic utilization. A lignin-first fractionation, using a food-additive derived ionic liquid (1-ethyl-3-methylimidazolium acesulfamate, emimAce) and mild alkaline pretreatments, was formed for the purposely isolating poplar lignin, whilst delivering a cellulose-rich substrate that can be easily available for enzymatic digestion. The emimAce-driven lignin, alkali-soluble lignin and hemicellulose, and accessible cellulose were sequentially gained. We introduce a lignin-first approach to extract the amorphous fractions, destroy the robust architecture, and reform cellulose-I to II, thereby advancing the cellulose bioconversion from 15.4 to 90.5%. A harvest of 70.7% lignin, 52.1% hemicellulose, and 330.1 mg/g glucose was fulfilled from raw poplar. A structural ''beginning-to-end'' analysis of lignin inferred that emimAce ions are expected to interact with lignin β-aryl-ether due to their aromatic character. It was reasonable to derive benefits from lignin-first technique that can substantially augment the domain of biorefinering.

中文翻译：

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杨木素首先通过木质素生物精炼厂进行协同增效，方法是偶联乙酰氨基磺酸盐离子液体，然后进行温和的碱性萃取。

一种被称为木质素优先生物精炼厂的新颖思维模式正令人着迷，以同步提高木质素的产量，从而完全利用木质纤维素。使用食品添加剂衍生的离子液体（1-乙基-3-甲基咪唑鎓乙酰氨基磺酸，emimAce）和温和的碱性预处理形成木质素优先级分馏，目的是分离杨木木质素，同时提供富含纤维素的底物，该底物可以容易进行酶消化。依序获得了电子驱动的木质素，碱溶性木质素和半纤维素以及可及的纤维素。我们引入了木质素优先方法，以提取无定形馏分，破坏稳健的结构，并将纤维素I转化为II，从而将纤维素的生物转化率从15.4提升至90.5％。收获量为70.7％木质素，52.1％半纤维素和330。从未加工的杨树中获得1 mg / g葡萄糖。木质素的结构性“从头到尾”分析推断，预计emimAcece离子由于其芳香特性而有望与木质素β-芳基醚相互作用。从木质素优先技术中获得收益可以合理地扩大生物精炼领域是合理的。