Light-colored lignin extraction by ultrafiltration membrane fractionation for lignin nanoparticles preparation as UV-blocking sunscreen

被引：19

作者：

Zhang, Jiawei ^{[1
]}

Tian, Zhongjian ^{[1
,2
]}

Ji, Xing -Xiang ^{[1
]}

Zhang, Fengshan ^{[2
]}

机构：

[1] Qilu Univ Technol, Shandong Acad Sci, State Key Lab Biobased Mat & Green Papermaking, Jinan 250353, Shandong, Peoples R China

[2] Shandong Huatai Paper Co Ltd, Dongying 257355, Shandong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 231卷

基金：

中国国家自然科学基金;

关键词：

Ultrafiltration membrane fractionation; Lignin nanoparticles; Lignin color; UV absorption; Sunscreens; COLLOIDAL SPHERES; POLYMER;

D O I：

10.1016/j.ijbiomac.2023.123244

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A wide range of applications are available for kraft lignin (KL). However, the dark color and wide size distri-bution of KL make it challenging to use in cosmetics and nanoparticle preparation. In this study, we fractionated KL from a paper-making enterprise using ultrafiltration membrane fractionation, and obtained four kinds of lignin with different molecular weights, namely ultrafiltration lignin (UL). Following that, lignin nanoparticles (ULNPs) were formed by self-assembly from four types of UL. Analyzing the UL and ULNP properties, the low molecular weight lignin, such as ULA, exhibited good antioxidant properties (89.47 %, 5 mg/mL), high brightness (ISO% = 7.55), high L* value (L* = 72.3) and low polydispersity index (PDI = 1.41). The ULNP showed a narrow size distribution (0.8-1.4 m) and high dispersibility in sunscreen. When ULNP was added to sunscreen with 5 % load, its sun protection factor (SPF) value increased from 14.93 to 63.74. Therefore, this study offered an effective way for the comprehensive utilization of pulping waste KL.

引用

页数：10