CYTOTOXIC AND ANTIOXIDANT ACTIVITY OF BUCKWHEAT HULL EXTRACTS

Authors

  • Martina Danihelová
  • Soňa Jantová
  • Ernest Å turdík

Keywords:

antioxidant activity, buckwheat hull, cytotoxic effect, polyphenol content

Abstract

Buckwheat contains many prophylactic compounds that are concentrated mainly in outer layers of buckwheat grain. The aim of this study was to prepare buckwheat hull extracts. Ten buckwheat cultivars were screened for their antioxidant and anticancer properties. Total polyphenol content was determined using Folin-Ciocalteau's reagent. Antioxidant activity was established by the method of binding free radical DPPH. Cytotoxic properties were measured on human cervical cancer cells HeLa using mitochondrial cytotoxic test (MTT). Total polyphenol content ranged from 166.67 to 635.31 mg GAE/100 g DW. The highest content displayed tartary buckwheat cultivar Madawaska (0.64% of hulls weight). Among common buckwheat the richest in polyphenols were cultivars Bamby and KASHO-2. The best free radical binding antioxidant activity was found for cultivars with highest polyphenol content. This relationship was not observed for cytotoxic action on human cervical cancer cells. The best growth inhibitory activity on HeLa cancer cells displayed common buckwheat cultivars Bamby and KASHO-2 (up to 50%, extract concentration 100 µg/ml). This was not found for tartary buckwheat cultivar Madawaska.

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Published

2013-02-01

How to Cite

Danihelová, M., Jantová, S., & Å turdík, E. (2013). CYTOTOXIC AND ANTIOXIDANT ACTIVITY OF BUCKWHEAT HULL EXTRACTS. Journal of Microbiology, Biotechnology and Food Sciences, 2(special issue 2), 1314–1323. Retrieved from https://office2.jmbfs.org/index.php/JMBFS/article/view/7453