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ANTIOXIDANT ABILITIES COMPARISON OF LIGNINS WITH THEIR HYDROTHERMAL LIQUEFACTION PRODUCTS
Black liquor alkaline lignin and magnesium lignosulfonate were liquefied at 320 oC. The antioxidant abilities of the liquefaction products were compared with the raw materials. Results showed that the total phenol content and unit antioxidant power of both alkaline lignin liquefaction products (ALLP) and magnesium lignosulfonate liquefaction products (MLLP) were improved, and ALLP had a larger increase than MLLP. The influence of reaction time and temperature on oil yield, total phenol content,doaj:3f1c2773b5174a28bce8af3fc13fb281 fatcat:gez6yt4lorewvcr2xdkn7y6sse