Extraction of Lycopene from Carrots Using Ultrasonically Assisted Eutectic Solvents
Response surface analysis(RSM)was employed to optimize the extraction process of lycopene from carrots using a natural eutectic solvent assisted by ultrasound.Based on single-factor experiments,pH,liquid-solid ratio,and ultrasonic temperature were selected as dependent variables,while the lycopene extraction rate served as an index for designing and analyzing the Box-Behnken response surface experiment.The results demonstrated that the optimal extraction process of lycopene from carrots involved a liquid-to-solid ratio of 5∶1(g/mL),a water content of 10%DES[n(choline chloride):n(acetic acid)=1:2],an ultrasonic temperature of 40℃,an extraction time of 20 minutes,and pH adjustment to 3.Under these conditions,the yield of lycopene reached 18.41%.The utilization of natural eutectic solvent with ultrasound assistance exhibited a positive impact on carrot-derived lycopene extraction.This study provides fundamental insights for comprehensive development and utilization strategies about lycopene.
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