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Antioxidant activities in various peel extracts of four varieties rambutan (Nephelium lappaceum) using DPPH, FRAP assays
Fidrianny I.a, Sari P.I.a, Wirasutisna K.R.a
a School of Pharmacy, Bandung Institute of Technology, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2015, International Journal of Pharmacognosy and Phytochemical Research. All rights reserved.The objectives of this research were to study antioxidant activities from various extracts of rambutan peels using two methods of antioxidant assays which were DPPH (2-2-diphenyl-1-picrylhydrazyl) and FRAP (Ferric Reducing Antioxidant Power); and correlation of total flavonoid, phenolic, and carotenoid content in various extracts of rambutan peels with DPPH antioxidant activities and FRAP capacities. Extraction was performed by reflux apparatus using different polarity solvents. The extracts were evaporated using rotary evaporator. Antioxidant capacities were tested using DPPH and FRAP assays. Determination of total flavonoid, phenolic, and carotenoid content was performed by spectrophotometer UV-visible and their correlation with DPPH antioxidant activities and FRAP capacities were analyzed by Pearson’s method. Ethyl acetate extract of lebak bulus rambutan peels (LB2) had the highest DPPH scavenging activity with IC50 3.5 µg/mL, while ethyl acetate extract of binjai rambutan peels (BJ2) had the highest FRAP capacity with EC50 77.1 µg/mL. N-hexane extract of binjai rambutan peels (BJ1) had the highest total flavonoid (3.46 g QE/100 g), ethyl acetate extract of lebak bulus rambutan peels (LB2) had the highest phenolic content (40.9 g GAE/100 g), and nhexane extract of rapiah rambutan peels (RP1) had the highest carotenoid content (0.61 g BE/100 g). There was a positively high correlation between total phenolic content with their antioxidant activity using DPPH and FRAP assays. The DPPH scavenging activities in various peel extracts from four varieties rambutan gave linear result with FRAP capacities.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Antioxidants,Carotenoid,DPPH,Flavonoid,FRAP,Phenolic,Rambutan peels[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]