采用水合深共晶溶剂从竹笋壳中提取浅色木质素的分级和评价。
Fractionation and evaluation of light-colored lignin extracted from bamboo shoot shells using hydrated deep eutectic solvents.
机构信息
Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
出版信息
Bioresour Technol. 2023 Nov;387:129679. doi: 10.1016/j.biortech.2023.129679. Epub 2023 Aug 12.
In this study, light-colored lignin was extracted from bamboo shoot shells (BSS) using a hydrated deep eutectic solvent (DES) pretreatment. The hydrated DES used in pretreatment consist of formic acid, benzyl triethylammonium chloride (BTEAC) and water. The pretreatment using a hydrated DES containing 30% water (H30) demonstrate efficient delignification (82.9%). Additionally, the hydrated DES protected the β-O-4 linkage from excessive cleavage and recondensation as well as keep the light-colored of lignin. Moreover, the hydrated DES extracted lignin exhibits superior antioxidant performance and tyrosinase inhibitory capacity compared to the control. Notably, incorporating 5% lignin of H30-extracted lignin into a commercial suncream led to a remarkable enhancement of the SPF value, elevating from 14.8 to 32.6. In summary, the proposed hydrated DES pretreatment method offers significant benefits for extracting light-colored lignin, thereby promoting the multifunctional application of lignin in cosmetics.
在这项研究中，使用水合深共晶溶剂（DES）预处理从竹笋壳中提取浅色木质素。预处理中使用的水合 DES 由甲酸、苄基三乙基氯化铵（BTEAC）和水组成。使用含有 30%水的水合 DES（H30）进行预处理可实现高效脱木质素（82.9%）。此外，水合 DES 防止了 β-O-4 键的过度断裂和重缩合，并保持了木质素的浅色。此外，与对照相比，水合 DES 提取的木质素具有优异的抗氧化性能和酪氨酸酶抑制能力。值得注意的是，将 5%的 H30 提取木质素加入商业防晒霜中，可使 SPF 值显著提高，从 14.8 提高到 32.6。总之，所提出的水合 DES 预处理方法在提取浅色木质素方面具有显著优势，从而促进了木质素在化妆品中的多功能应用。
Zotero 插件