%0 Journal Article %A Liu, Di %A Li, Ying %A Qian, Yong %A Xiao, Yang %A Du, Shengjun %A Qiu, Xueqing %D 2017 %T Synergistic Antioxidant Performance of Lignin and Quercetin Mixtures %U https://acs.figshare.com/articles/journal_contribution/Synergistic_Antioxidant_Performance_of_Lignin_and_Quercetin_Mixtures/5303152 %R 10.1021/acssuschemeng.7b02282.s001 %2 https://acs.figshare.com/ndownloader/files/9081220 %K DPPH %K Synergistic Antioxidant Performance %K antioxidant performance %K Quercetin Mixtures %K high-efficiency ratio %K lignin %K quercetin mixture %K 4 h %K phenolic antioxidant mixture %K fluorescence analysis %K UV radiation %K quercetin molecules %X A natural, effective, and inexpensive hindered phenolic antioxidant mixture was prepared by blending lignin into quercetin. The antioxidant performance of lignin and quercetin mixture was analyzed by determining the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging capacity and a low-cost and high-efficiency ratio was found to be 4:1 (w/w). After UV radiation for 4 h, the DPPH scavenging ratio of the quercetin/lignin mixture decreased only 13.8%, while that of quercetin and lignin decreased 42.9% and 28.6%, respectively. The UV and fluorescence analysis indicated that quercetin molecules inserted into the lignin to weaken its aggregation and form new conjugated structures. Adding lignin may provide a green alternative to the expensive quercetin or synthetic antioxidants used in food, cosmetics, and pharmaceuticals. %I ACS Publications