Fatty acids and some antioxidant compounds of <i>Psidium guajava</i> seed oil
2013
Malacrida, C. R. | Jorge, N.
Physico-chemical characteristics, fatty acid and tocopherol compositions, total phenolic content and antioxidant activity of crude oil extracted from guava (<i>Psidium guajava</i> var. <i>pomifera</i>) seeds were investigated. Oil yield from the seeds was 14.0%. Data obtained for the analytical indexes compared well with those of others edible oils. The oil showed high levels of unsaturated fatty acids (88.1%), mainly linoleic acid (78.4%). The tocopherol and total phenolic contents in the oil amounted to 29.2 and 92.3 mg/100 g, respectively. The guava seed oil exhibited a great DPPH<sup>·</sup> scavenging activity showing EC<sub>50</sub> of 12.9 g oil/g [DPPH<sup>·</sup>]<sup>−1</sup> and antiradical efficiency of 7.9×10<sup>−2</sup>. Therefore, the potential utilization of the guava seed oil as a raw material of food, chemical and pharmaceutical industries appears to be favourable and provides the use of a renewable resource, adding value to agricultural products.
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