Phcog.Net logo
Submit

BROWSE ALL JOURNALS

    SEE ALL 6 JOURNALS
    Pharmacognosy ResearchNOW IN
    Article

    In vitro Antioxidant Activities and Polyphenol Contents of Seven Commercially Available Fruits

    Paramita Basu1, Camelia Maier1★★ Corresponding author

    1. 1Department of Biology, Texas Woman’s University, Denton, TX 76204-5799, USA

    CORRESPONDENCE

    Camelia Maier

    Department of Biology, Texas Woman’s University, Denton, TX 76204-5799, USA.

    cmaier@twu.edu

    Volume 8, Issue 4 · pp. 258–264 · PUBLISHED Oct-Dec 2016 · DOI: 10.4103/0974-8490.188875

    View on Pharmacogn. Res. original site ↗

    ABSTRACT

    Background Fruits are considered one of the richest sources of natural antioxidants. Their consumption has been linked to the prevention of oxidative stress-induced diseases. Objective In this study, in vitro antioxidant activities of blueberry, jackfruit, blackberry, black raspberry, red raspberry, strawberry, and California table grape extracts were evaluated. Materials and Methods Antioxidant activities were determined by 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant potential (FRAP), 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), nitric oxide (NO), superoxide anion (O2−) scavenging assays, and ferric reducing power. Results Black raspberry extract had the highest phenolic (965.6 ± 2.9 mg gallic acid equivalents [GAE]/g), flavonoid (186.4 ± 1.7 mg quercetin equivalents/g), and proanthocyanidin (2677 ± 71.1 mg GAE/g) contents. All fruit extracts exhibited increasing radical scavenging activities with increased concentrations. At 100 mg/ml, red raspberry extract showed the highest ferric reducing power (A700 = 0.3 ± 0.0052) and FRAP activity (A593 = 11.43 mM Fe2+/g). Black raspberry extract (100 mg/ml) exhibited the highest DPPH activity (A517 = 89.03 ± 0.0471). Jackfruit extract (100 mg/ml) had the highest ABTS (A734 = 35.6 ± 0.613), NO (A540 = 81.7 ± 0.2), and O2− radical scavenging (A230 = 55.5 ± 0.2) activities. Positive correlations were observed between IC50 values for different radical scavenging activities and different polyphenolics. Red raspberry extract had the highest Pearson’s coefficient values (0.952–1) between total phenolics, flavonoids, and proanthocyanidins and DPPH and superoxide radical scavenging activities. Conclusions The antioxidant rich fruits in this study are good source of functional food and nutraceuticals that have the potential to improve human health.

    KEYWORDS

    Open in new tab

    REFERENCES

    As published

    Showing references and in-text citations exactly as published.

      Cite this article

      SELECT FORMAT

      Basu, P., & Maier, C. (2016). In vitro Antioxidant Activities and Polyphenol Contents of Seven Commercially Available Fruits. Pharmacognosy Research, 8(4), 258–264. https://doi.org/10.4103/0974-8490.188875