Novel oilseed of Dracocephalum kotschyi with high n-3 to n-6 polyunsaturated fatty acid ratio
2013
Goli, Sayed Amir Hossein | Sahafi, Sayed Mohammad | Rashidi, Behzad | Rahimmalek, Mehdi
The present study investigated the seed of an endemic medicinal plant, Dracocephalum kotschyi for its chemical composition. The physicochemical characteristics of related oil extract were also evaluated. The results showed that the seed was similar to flaxseed in size and had 4.2, 1.7 and 1.1mm for length, width and thickness, respectively. High content of oil (20%), protein (16.3%) and fiber (36%) implicated that the seed can be suitable for human nutrition or animal feeding. The seed oil contained linolenic acid (61.2%) as predominant fatty acid followed by oleic (18.1%) and linoleic (13.5%) acids. The fatty acid composition revealed that the oil composed of high content of polyunsaturated fatty acids especially n-3 acids. Physicochemical properties such as free fatty acid percentage, peroxide value and color showed that the unrefined oil had acceptable quality and great potential to use as nutritional dietary component.
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