文献类型：期刊文献

英文题名：Cream-colored lignin nanoflowers via ethanol/water fractionation: Sustainable UV-blocking additives for sunscreen

作者：Zhang, Jiawei[1,2] Sun, Kang[1] Zhang, Gaoyue[1] Lu, Xinchen[1] Zhao, Jian[1] Wang, Ruizhen[1] Xia, Haihong[1] Wang, Kui[2] Zhang, Kaili[1] Jiang, Jianchun[1,2]

第一作者：Zhang, Jiawei

通信作者：Sun, K[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Mat Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem, Nanjing 210037, Peoples R China

年份：2025

卷号：331

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20254319396809);Scopus(收录号：2-s2.0-105019647988);WOS:【SCI-EXPANDED(收录号:WOS:001614985700015)】；

基金：This work was supported financially by the National Key Research and Development Program (2023YFB4203700), the Fundamental Research Funds of CAF & sdot;(NO.CAFYBB2023ZA011) and the Forestry Technology Projects of Zhejiang Province (2023SY04).

语种：英文

外文关键词：Lignin fractionation; Lignin Nanoflowers; Light colored lignin; UV absorption

摘要：Lignin possesses intrinsic ultraviolet (UV) shielding properties, making it one of the most promising natural materials for eco-friendly sunscreen development. However, the wide molecular weight distribution, complex structure, dark color, and poor dispersibility of industrial sulfonated lignin (LS) have hindered its commercial application in cosmetic formulations. In this study, a green and efficient antisolvent approach using ethanol was developed to simultaneously fractionate LS and fabricate lignin nanoflowers (LSNFs). The results revealed that the low-molecular-weight fraction, LSNF3, exhibited a high density of oxygen-containing functional groups (phenolic hydroxyl content = 2.12 mmol/g), superior antioxidant activity (RSI = 6.45), and a significantly lighter appearance-with brightness and whiteness values increased by 253.5 % and 286.2 %, respectively, compared to LS. Molecular dynamics simulations further elucidated the self-assembly mechanism of nanoflower formation. Finally, LSNFs were incorporated into cream and SPF15 sunscreen formulations. The SPF value of 10 % LSNF3/Sunscreen reached as high as 67.8, demonstrating a green and cost-effective pathway for the application of lignin in the field of sun protection.