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Antimutagenic activity of berry extracts

S Hope Smith1, Patricia L Tate, George Huang

  • 1Department of Microbiology, Clemson University, Clemson, SC 29634, USA.

Journal of Medicinal Food
|January 27, 2005
PubMed

Insights

Berries like strawberries, blueberries, and raspberries show significant antimutagenic properties. Specific berry compounds, particularly tannins from strawberries, effectively inhibit cancer-causing mutations.

Area of Science:

  • Phytochemistry
  • Cancer Research
  • Genetics

Background:

  • Plants are recognized sources of anti-tumor and chemopreventative compounds.
  • Identifying dietary phytochemicals for cancer prevention and intervention is crucial.
  • Cancer initiation involves genomic damage to somatic cells, leading to mutations.

Purpose of the Study:

  • To evaluate the antimutagenic potential of berry fruits (strawberry, blueberry, raspberry).
  • To assess the efficacy of berry juices and extracts against specific mutagens.
  • To identify specific berry components responsible for inhibiting mutagenesis.

Main Methods:

  • Fresh juices and organic solvent extracts from strawberries, blueberries, and raspberries were prepared.
  • Antimutagenic activity was tested against methyl methanesulfonate (direct-acting mutagen) and benzo[a]pyrene (metabolically activated carcinogen).
  • Ethanol extracts from specific strawberry and blueberry cultivars were further analyzed.

Main Results:

  • Juices from all tested berries significantly inhibited mutagenesis induced by both methyl methanesulfonate and benzo[a]pyrene.
  • Ethanol extracts from freeze-dried strawberry and blueberry fruits also demonstrated antimutagenic effects.
  • A hydrolyzable tannin-rich fraction from 'Sweet Charlie' strawberry cultivar exhibited the highest efficacy in mutation inhibition.

Conclusions:

  • Strawberry, blueberry, and raspberry fruits possess significant antimutagenic properties.
  • Berry phytochemicals, especially tannins from strawberries, can inhibit chemically induced mutations.
  • These findings support the role of berries in dietary cancer prevention strategies.

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