Folia Horticulturae

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Antioxidant properties of leaf and root extract and oil from different types of horseradish (Armoracia rusticana Gaertn.)

Alicja Majewska*, Bożena Bałasińska**, Barbara Dąbrowska**

**Department of Vegetable and Medicinal Plants
**Faculty of Horticulture and Landscape Architecture, Warsaw Agricultural University
**Nowoursynowska 166, 02-787 Warsaw, Poland
**Department of Physiological Science
**Faculty of Veterinary Medicine, Warsaw Agricultural University
**Nowoursynowska 159, 02-787 Warsaw, Poland

Antioxidant properties of leaf and root extracts and mustard oil originated from four different types of horseradish (‘Lipnik’, ‘Mazaniec’, ‘Osjaków’, ‘Tądle’) were investigated. The tested types were cultivated in two different regions of Poland: near the town Wieluń (sand-originated yellow soil) and in the area near Warsaw (Wilanów - dust-originated middle mud). Antioxidant properties in roots and leaves were determined by two methods: reduction of Fe3+ ions and inhibition of deoxiribose oxidation process. Additionally, the root-derived oil was subjected to Total Antioxidant Status (TAS) determination. In addition, experiments with mice (line C57BL/6J) were also performed. The animals were divided into two groups. The first group was fed a standard diet while the second group was fed the same diet enriched with 1% horseradish. Although leaf and root extracts derived from 4 Polish types of horseradish did not exhibit strong antioxidant properties, the different environmental conditions of plant growth affected these properties significantly. Volatile oil obtained from horseradish roots revealed stronger antioxidant properties than pure allyl isothiocyanate and was significantly affected by types as well as environmental factors. Diet containing horseradish had no effect on antioxidant plasma and heart activity in mice. The biological attributes of horseradish probably do not come from antioxidant properties of compounds contained in the useful parts of this vegetable.

Majewska A., Bałasińska B., Dąbrowska B., 2004. Antioxidant properties of leaf and root extract and oil from different types of horseradish (Armoracia rusticana Gaertn.). Folia Horticulturae 16/1: 15-22.