Antioxidant and antimicrobial activity of oils obtained from a mixture of citrus by-products using a modified supercritical carbon dioxide

作者：Ndayishimiye John; Lim Deok Jum; Chun Byung Soo^*

来源：Journal of Industrial and Engineering Chemistry, 2018, 57: 339-348.

DOI：10.1016/j.jiec.2017.08.041

• Antioxidant activity
• Antimicrobial activity
• Mixture
• Supercritical CO2 extraction
• Modifier

This study investigated the impact of combining citrus seeds and citrus peels on the bioactivity of the resulting oil obtained using a modified supercritical carbon dioxide. The total phenolic and total flavonoid contents were determined, and the citrus-peel and citrus-seed oils exhibited high content. In addition, antioxidant activity was determined, and the oil extracted using SC-CO2+ ethanol at 200 bar exhibited high IC50 values of 0.52 and 0.53 mg/ml for citrus-peel alone and mixture oils, respectively, for the DPPH assay. Oil from the mixture exhibited high antimicrobial activity, and the oils were more susceptible for gram-positive than gram-negative bacteria.

• 出版日期2018-1