多位受氢体低共熔剂解离厨余生物质糖类凝聚结构及超声协同机制

低共熔剂制备简单、价廉、溶解性优良等优势为生物质糖类资源化绿色利用提供了崭新的溶剂平台。最近我们发现，常规氯化胆碱类二元低共熔剂缺乏有效的活性氢质子和酸位点数，且粘度高，导致其无法有效解离生物质糖类凝聚结构及作用效率低。本申请项目利用Lewis酸性和多位点数的特性，以及超声仿真破坏钢筋混凝土式结构的冲击作用，构建多位受氢体低共熔剂及超声协同技术。然而，该新型溶剂如何解离生物质凝聚结构、超声协同的量化机制等尚不清楚。为此，项目采用设计、计算、模拟和验证紧密结合，设计高氧化态(≥+3)金属卤化物的Lewis酸解救被“封堵”的Cl-活性位点和融合声学监测的策略，计算低共熔剂形成与模拟解离过程，用于厨余生物质糖类解离与酶解验证，建立多维的细胞壁结构和组分分布及动态溶解模型，阐释该体系的解离机理及超声协同机制，这些对丰富厨余生物质糖类绿色资源化利用的理论与技术具有重要意义。

Deep eutectic solvents have become more promising as new green solvents for resource green utilization of biomass carbohydrate because of their simple preparation, low cost and better solubility. Recently, we found that conventional binary choline chloride deep eutectic solvents lack effective active hydrogen protons and sites, and the viscosity is also high, which makes them unable to effectively cleavage the biomass carbohydrate complexes and low efficiency. This project utilizes Lewis acidity and multi-sites characteristics and simulate the impact force of destroying reinforced concrete structures, and proposes the technology of multimode ultrasound combined with multiple hydrogen bond acceptor deep eutectic solvents. However, it is not clear how the new solvent can cleavage the biomass carbohydrate complexes and the quantitative mechanism of synergy of ultrasound. Therefore, we use design, calculate, simulate and verify methods. Firstly, the strategy of high oxidized (>+3) metal halide Lewis acid to rescue the "trapped" Cl-active sites and acoustic monitoring were designed, then the formation of the deep eutectic solvents and the cleavage of biomass carbohydrate complexes were calculated and simulated, and last the cleavage and enzymolysis of kitchen food waste biomass carbohydrate complexes were verified. The establishment of multi-dimensional cell wall structure, component distribution and dynamic dissolution model to explain the formation mechanism of biomass cell wall resistance, and clarify mechanism of the formation of cell wall resistance and cleavage of biomass carbohydrate complexes by synergy of ultrasound and multiple hydrogen bond acceptor deep eutectic solvents, which is of great significance to the theory and technology of resource green utilization of kitchen food waste biomass carbohydrate complexes.