期刊
BIORESOURCE TECHNOLOGY
卷 387, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2023.129679
关键词
Pretreatment; Characterizations; Antioxidants; Tyrosinase inhibitor; Sunscreen
In this study, light-colored lignin was efficiently extracted from bamboo shoot shells using a hydrated deep eutectic solvent (DES) pretreatment. The hydrated DES protected the β-O-4 linkage and maintained the light color of lignin. The extracted lignin exhibited superior antioxidant performance and tyrosinase inhibitory capacity, leading to a remarkable enhancement of the SPF value when incorporated into a commercial suncream.
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 & beta;-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.
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