TITLE:
Total Phenols and Flavonoids Content, Antioxidant Capacity and Lipase Inhibition of Root and Leaf Horseradish (Armoracia rusticana) Extracts
AUTHORS:
Luana Calabrone, Marilena Larocca, Stefania Marzocco, Giuseppe Martelli, Rocco Rossano
KEYWORDS:
Anti-Lipase Activity, Antioxidant, Leaves, Horseradish, Roots
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.6 No.1,
January
12,
2015
ABSTRACT: Horseradish
(Armoracia rusticana Gaertn) is a perennial crop
belonging to the Brassicaceae family, widely used as spice in food and as herbal
ingredient in ethno-medicine. This study
evaluated the phenolic compounds content, antioxidant capacity and
anti-lipase activity of methanol, methanol/water (70/30, v/v) and
methanol/water (50/50, v/v) extracts of horseradish roots and leaves. Among the
extracts tested, both roots and leaves aqueous methanolic (70/30, v/v and
50/50, v/v) extracts showed higher total phenol and flavonoid contents and
antioxidant capacity than the corresponding methanol extracts. But extraction
yield was high for methanol/ water (50/50, v/v) extracts, in both roots and
leaves. The extracts exhibited anti-lipase activity in dose-dependent manner.
The results showed that the extraction yield and the antioxidant capacity were
strictly dependent on the solvent polarity. The results suggest that A.
rusticana could provide opportunities for the development of functional
food and further in vivo studies for
obesity treatment.