Comparison of bioactive compounds, antioxidant activity, fatty acid composition and phenolic compounds of three rapeseed varieties.

In this study, differences in oil contents, bioactive properties (total phenol, total flavonoid, total chlorophyll, antioxidant activity), fatty acids and polyphenols of rapeseed and oils harvested in Turkey (Yarma-Karatay-Konya) were investigated. The chlorophyll-a and chlorophyll-b amounts of seeds changed between 1.45 (Sygenta Linus) and 4.45 µg/g (PR44W29) to 0.07 (Neptune) and 4.74 µg/g (Sygenta Linus), respectively. Total chlorophyll contents of rapeseed varieties changed between 1.30 (PR44W29) and 2.37 mg/kg (Neptune). Total phenol and flavonoid amounts of rapeseed samples varied between 54.82 (Neptune) and 75.69 mgGAE/100g (Sygenta Linus) to 111.31 (Neptune) and 138.21 mg/100g (Sygenta Linus), respectively. Antioxidant activity values of rapeseeds were measured between 2.84 (Neptune) and 3.30 mmol/kg (Sygenta Linus). Oleic, linoleic, linolenic, and palmitic acids were found in abundant amounts in rapeseed oils. Oleic and linoleic acid amounts of rapeseed oils were found between 60.97 (Neptune) and 63.96% (Neptune) to 19.02 (Sygenta Linus) and 22.52% (Neptune), respectively. While gallic acid contents of rapeseeds vary between 15.44 (Neptune) and 23.27 mg/100g (Sygenta Linus), gallic acid amounts of rapeseed oils were identified between 14.10 (Neptune) and 19.15 mg/100g (Sygenta Linus). [ABSTRACT FROM AUTHOR]