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Antioxidant and antiproliferative activities of strawberries.
J Agric Food Chem. 2003 Nov 05; 51(23):6887-92.JA

Abstract

Strawberries contain high levels of antioxidants, which have been correlated with a decreased risk of chronic disease. To more fully characterize the antioxidant profiles and possible associated health benefits of this fruit, the total free and bound phenolic, total flavonoid, and total anthocyanin contents of eight strawberry cultivars (Earliglow, Annapolis, Evangeline, Allstar, Sable, Sparkle, Jewel, and Mesabi) were measured. Cultivar effects on phenolic contents were compared with antioxidant capacities, as measured by the total oxyradical scavenging capacity (TOSC) assay, and to antiproliferative activities, as measured by inhibition of HepG(2) human liver cancer cell proliferation in vitro. Free phenolic contents differed by 65% between the highest (Earliglow) and the lowest (Allstar) ranked cultivars. The water soluble bound and ethyl acetate soluble bound phenolic contents averaged 5% of the total phenolic content of the cultivars. The total flavonoid content of Annapolis was 2-fold higher than that of Allstar, which had the lowest content. The anthocyanin content of the highest ranked cultivar, Evangeline, was more than double that of the lowest ranked cultivar, Allstar. Overall, free phenolic content was weakly correlated with total antioxidant activity, and flavonoid and anthocyanin content did not correlate with total antioxidant activity. The proliferation of HepG(2) human liver cancer cells was significantly inhibited in a dose-dependent manner after exposure to all strawberry cultivar extracts, with Earliglow exhibiting the highest antiproliferative activity and Annapolis exhibiting the lowest. No relationship was found between antiproliferative activity and antioxidant content.

Authors+Show Affiliations

Department of Food Science, Cornell University, Ithaca, New York 14853-7201, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

14582991

Citation

Meyers, Katherine J., et al. "Antioxidant and Antiproliferative Activities of Strawberries." Journal of Agricultural and Food Chemistry, vol. 51, no. 23, 2003, pp. 6887-92.
Meyers KJ, Watkins CB, Pritts MP, et al. Antioxidant and antiproliferative activities of strawberries. J Agric Food Chem. 2003;51(23):6887-92.
Meyers, K. J., Watkins, C. B., Pritts, M. P., & Liu, R. H. (2003). Antioxidant and antiproliferative activities of strawberries. Journal of Agricultural and Food Chemistry, 51(23), 6887-92.
Meyers KJ, et al. Antioxidant and Antiproliferative Activities of Strawberries. J Agric Food Chem. 2003 Nov 5;51(23):6887-92. PubMed PMID: 14582991.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidant and antiproliferative activities of strawberries. AU - Meyers,Katherine J, AU - Watkins,Christopher B, AU - Pritts,Marvin P, AU - Liu,Rui Hai, PY - 2003/10/30/pubmed PY - 2004/1/7/medline PY - 2003/10/30/entrez SP - 6887 EP - 92 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 51 IS - 23 N2 - Strawberries contain high levels of antioxidants, which have been correlated with a decreased risk of chronic disease. To more fully characterize the antioxidant profiles and possible associated health benefits of this fruit, the total free and bound phenolic, total flavonoid, and total anthocyanin contents of eight strawberry cultivars (Earliglow, Annapolis, Evangeline, Allstar, Sable, Sparkle, Jewel, and Mesabi) were measured. Cultivar effects on phenolic contents were compared with antioxidant capacities, as measured by the total oxyradical scavenging capacity (TOSC) assay, and to antiproliferative activities, as measured by inhibition of HepG(2) human liver cancer cell proliferation in vitro. Free phenolic contents differed by 65% between the highest (Earliglow) and the lowest (Allstar) ranked cultivars. The water soluble bound and ethyl acetate soluble bound phenolic contents averaged 5% of the total phenolic content of the cultivars. The total flavonoid content of Annapolis was 2-fold higher than that of Allstar, which had the lowest content. The anthocyanin content of the highest ranked cultivar, Evangeline, was more than double that of the lowest ranked cultivar, Allstar. Overall, free phenolic content was weakly correlated with total antioxidant activity, and flavonoid and anthocyanin content did not correlate with total antioxidant activity. The proliferation of HepG(2) human liver cancer cells was significantly inhibited in a dose-dependent manner after exposure to all strawberry cultivar extracts, with Earliglow exhibiting the highest antiproliferative activity and Annapolis exhibiting the lowest. No relationship was found between antiproliferative activity and antioxidant content. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/14582991/Antioxidant_and_antiproliferative_activities_of_strawberries_ DB - PRIME DP - Unbound Medicine ER -