文献类型：期刊文献

英文题名：Comprehensive insights of pretreatment strategies on the structures and bioactivities variation of lignin-carbohydrate complexes

作者：Su, Chen[1,2,3] Wang, Xiu[3,4] Deng, Yongjun[2,3] Tian, Zhongjian[1] Huang, Chen[2,3] Fang, Guigan[1,2,3]

第一作者：Su, Chen

通信作者：Fang, GG[1];Huang, C[2];Fang, GG[2];Huang, C[3];Fang, GG[3]

机构：[1]Qilu Univ Technol, Shandong Acad Sci, State Key Lab Biobased Mat & Green Papermaking, Jinan, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing, Peoples R China;[4]Peking Univ, Minist Educ, Sch Mat Sci & Engn, Key Lab Polymer Chem & Phys, Beijing, Peoples R China

年份：2024

卷号：12

外文期刊名：FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY

收录：;EI(收录号：20243616995543);Scopus(收录号：2-s2.0-85202976953);WOS:【SCI-EXPANDED(收录号:WOS:001302716600001)】；

基金：No Statement Available

语种：英文

外文关键词：lignin-carbohydrate complex; pretreatment methods; structure variation; antioxidant; anti-ultraviolet

摘要：Introduction: Due to its unique structural features and bioactivities, the lignin-carbohydrate complex (LCC) displays great potential in vast industrial applications. However, the elucidation of how various pretreatment methods affect the structure and bioactivities remains unaddressed.Method: The three pretreatment methods were systematically studied on the variations of structures and bioactivities, and the Gramineae plant, i.e., wheat straw, was adopted in this study. The structures and bioactivities variation caused by different pretreatments were studied in detail.Result and Discussion: The results showed that compared to physical or chemical pretreatments, biological pretreatment was the most effective approach in improving the bioactivities of LCC. The LCC from biological pretreatment (enzymatic hydrolysis, ELCC4) had more functional groups while the lower weight-average molecular weight (Mw) and polydispersity index (PDI) were well-endowed. The highest antioxidant abilities against ABTS and DPPH of ELCC4 were high up to 95% and 84%, respectively. Furthermore, ELCC4 also showed the best ultraviolet (UV)-blocking rate of 96%, which was increased by 6% and 2% compared to LCC8 (physical pretreatment) and LLCC4 (chemical pretreatment). This work prospectively boosts the understanding of pretreatment strategies on the structures and bioactivities variation of LCC and facilitates its utilization as sustainable and biologically active materials in various fields.