There are some parts that are not clearly understood (eg in the Abstract: ... "Analysis of oil quality indices (eg acid value, peroxide value, oil composition) extracted by both processes ..." What both processes?)
In Materials and Methods there are paragraphs that repeat ideas, as: ".... Later the microwave-treated samples corresponding to the three replicates were collected and permitted to cool to ambient temperature before oil extraction condition by extraction. Oil content ...." This is repeated in the next paragraph.