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Pakistan Journal of Nutrition
Year: 2011  |  Volume: 10  |  Issue: 7  |  Page No.: 602 - 608

Comparison of Volatile Profile of Moringa oleifera Leaves from Rwanda and China Using HS-SPME

Daniel Mukunzi, John Nsor-Atindana, Zhang Xiaoming, Arthur Gahungu, Eric Karangwa and Godelieve Mukamurezi    

Abstract: Moringa oleifera leaf samples from China and Rwanda were used for volatile profile analysis. Volatile compounds were analyzed using the Headspace-Solid Phase Microextraction (HS-SPME)-Gas Chromatography-Mass Spectrometry (GC-MS). A total of 93 volatiles consisting of aldehydes, alcohols, ketones, hydrocarbons, esters, terpenoids and acids were identified. While a total of 61 compounds were contained in the sample from China with acetic acid (12.54% of total volatiles) as the most abundant volatile compound, Rwandan sample contained 59 compounds having hexanoic acid (19.81% of total volatiles) as the most abundant one. Chinese sample showed a higher amount of fat (3.56%) and protein (29.54%) than Rwandan sample fat (3.48%) and protein (25.26%). The ash content was found to be higher in Rwandan sample than in Chinese sample 17.26% and 13.44% respectively. The total polyphenol and total flavonoid contents of Chinese and Rwandan samples were respectively as follow Chinese sample (24.65 mg GAE/g dry weight basis and 39.08 mg Rutin Eq/g dry weight basis) and Rwandan sample (30.01 mg GAE/g dry weight basis; 52.78 mg Rutin Eq/g dry weight basis).

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