Antioxidant Capacity, Total Phenolic Content, Fatty Acids and Correlation by Principal Component Analysis of Exotic and Native Fruits from Brazil

作者：Ribeiro Alessandra B; Bonafe Elton G; Silva Beatriz C; Montanher Paula F^*; Santos Junior Oscar O; Boeing Joana S; Visentainer Jesui V

来源：Journal of the Brazilian Chemical Society, 2013, 24(5): 797-804.

DOI：10.5935/0103-5053.20130105

• fruits
• antioxidant capacity
• fatty acids
• alpha-linolenic acid
• principal component analysis

The antioxidant capacities of seven exotic and native fruits from Brazil were evaluated using DPPH center dot, ABTS(center dot+) and FRAP assays, in addition to their total phenolic content and fatty acid composition. Murici and dovialis presented the highest total phenolic contents (243.42 and 205.98 mg GAE 100 g(-1), respectively), and the highest antioxidant capacities by the FRAP assay (24.97 and 23.70 mu mol Fe2+ g(-1), respectively). In the DPPH center dot and ABTS(center dot+) assays, dovialis presented the highest antioxidant capacity, 9.59 and 10.41 TE g(-1), respectively. The highest alpha-linolenic and linoleic acid contents were found in siriguela (107.86 mg FA g(-1) TL) and tomatinho do mato (215.50 mg FA g(-1) TL), respectively. The principal component analysis (PCA) of fatty acids yielded three significant PCs, which accounted for 99.75% of the data set total variance. The PCA data of the antioxidant analyses yielded two significant PCs, which accounted for 97.00% of the total variance.

• 出版日期2013-5