Abstract
Pequi (Caryocar brasiliense Camb.), babaçu (Orbignya phalerata Mart.), buriti (Mauritia flexuosa), and passion fruit (Passiflora edulis) oils were studied to determine their antibacterial, antioxidant and cytotoxic activities, as well as their total phenol and carotenoid contents. The fatty acid contents were determined by GC-MS. The three types of passion fruit oils studied were refined, cold pressed or extracted from seeds in a Soxhlet apparatus. The oils thus obtained showed differences in antioxidant activity and carotenoid content, but were similar in regard to total phenols. Buriti and pequi had the highest carotenoid contents, while refined and cold pressed passion fruit oil displayed the highest antioxidant activity. Pequi oil was the only oil to display antibacterial and cytotoxic activity.
Highlights
The Amazon is the world's most important ecosystem, which includes territories belonging to nineSouth American countries, with 61% being in Brazil
The values obtained were consistent with the manufacturer’s analytical reports for the refined oils and with values found in the literature
This oil was stored in a reused polyethylene terephthalate bottle exposed to light, with no indication of the date of manufacture: the prolonged improper handling may have led to lipid peroxidation and partial hydrolysis of the oil
Summary
The Amazon is the world's most important ecosystem, which includes territories belonging to nineSouth American countries, with 61% being in Brazil. Of the estimated 30 million species of plants found in the Amazon, only a few have been studied and identified so far, based on popular knowledge and scientific studies. Turning these resources into renewable raw materials for industry is a major challenge [1]. Babaçu (Orbignya phalerata Mart.), buriti (Mauritia flexuosa), and passion fruit (Passiflora edulis) are examples of economically important species, whose oils and fats have found various applications in the food, pharmaceutical, cosmetic, and textile industries. In this work we studied the antibacterial, antioxidant and cytotoxic activities of pequi (Caryocar brasiliense Camb.), babaçu, buriti and passion fruit seed oils. Three types of passion fruit oil were used: industrial refined oil, cold pressed oil and the oil obtained in the laboratory by Soxhlet extraction of the seeds
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