TITLE:
In Vitr Antioxygenic Activity of Ridge Gourd (Luffa acutangula) Pulp, Peel and Their Extracts on Peroxidation Models
AUTHORS:
Ananthan Padmashree, Gopal Kumar Sharma, Anil Dutt Semwal, Amarinder Singh Bawa
KEYWORDS:
Ridge Gourd; Antioxygenic Activity; Solvent Extraction; Phenolics; Flavonoids
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.3 No.10,
November
1,
2012
ABSTRACT: Ridge gourd pulp and peel powders as well as their various solvent fractions were evaluated for antioxygenic activity using different methods. Ridge gourd pulp and peel powders at 2% level and their ethanol/water soluble extracts exhibited strong antioxygenic activity in sunflower oil stored at 37?C. The water soluble extract devoid of any antioxygenic activity in sunflower oil. Ridge gourd pulp and peel powders as well as their extracts were evaluated for their antioxygenic activity using linoleic acid peroxidation, β-carotene-linoleic acid bleaching and 1,1-diphenyl-2-picryl-hydrazyl (DPPH) methods. Ethanol/water extracts from ridge gourd pulp and peel showed highest antioxygenic activity followed by water extracts, while the petroleum ether extract showed moderate antioxygenic activity. Ridge gourd peel powder and its extracts showed slightly higher antioxygenic activity than ridge gourd pulp powder and its extracts. This may be attributed to the presence of higher amounts of phenolics and flavonoids which have been reported as potential antioxidants.