Research Article
Binary Solvent Extraction System and Extraction Time Effects on Phenolic Antioxidants from Kenaf Seeds (Hibiscus cannabinus L.) Extracted by a Pulsed Ultrasonic-Assisted Extraction
Table 1
2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging capacity, 2,2'-azino-bis(3 ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging assay, total phenolic content (TPC), total flavonoid content (TFC), ferric reducing antioxidant power (FRAP), and -carotene bleaching (BCB) assays of kenaf seed extract extracted by different ethanol concentrations and extraction times.
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Value are presented in means ± standard deviation ; mean values at the same column with different superscripts are significantly different . GAE: gallic acid equivalents. CE: catechin equivalents. TEAC: Trolox equivalent. |