The species Astrocaryum aculeatum (Arecaceae) is known in the Brazilian Amazon as tucumã, whose fruit is much appreciated by the population of the region, where its pulp, oleaginous, is the most consumed. Thus, the aim of this work was to perform a profile of fatty acids by GC-FID and minerals by ICP-OES of the oil of the pulp of the tucumã (A. aculeatum), as well as their physicochemical properties by 1 H NMR. The fruits were collected in Alto Alegre city, Roraima, Brazil. These were taken to the laboratory, sanitized and removing your pulp, submitted to the oven with air circulation at 50 °C for 72 h, the dried pulps were milled and sieved between 20-40 mesh. The pulp oil extraction was realized in Soxhlet with hexane for 6 hours (yield of 54.7%). Were identified a total of 10 fatty acids, of these 23.8% are saturated fatty acids and 76.2% are unsaturated fatty acids: palmitic acid (10.4%), stearic acid (4.9%), oleic acid (64.2%), linoleic acid (11%) ) were observed in high concentrations. The Amazon tucumã is an oleaginous that deserves our attention because it is composed of essential fatty acids that are beneficial to the human health.
The Patauá (Oenocarpus bataua Mart.) also known as Bataua or Patuá, is a palm native from the Amazon, consumed among the local populations as well as the wine obtained from its pulp with high energy value. It is a monocle palm tree reaching between 4-26 meters tall, distributed in the Amazon rainforest both in the wet forest of floodplains. The objective of this work was to study the proximal, mineralogical composition, as well as the total phenolic compounds and antioxidant activity of pulp and seed of Patauá. As for mineral composition, the high concentrations of sodium for the seed (84.21 mg 100 g-1) and pulp (71.21 mg 100 g-1), as well as magnesium values of 48.31 mg 100 g-1 for the seed and 41.23 mg 100 g-1 for the pulp. Among the micronutrients, the high concentration of iron in the pulp is 1.84 mg 100 g-1 for the pulps, and the manganese was 1.10 mg 100 g-1 for the seeds. The total phenolic compounds found in the seeds were relatively higher than for the pulps with values of 356.12 ± 0.12 mg GAEq g-1 and 321.03 ± 0.43 mg GAEq g-1, as well as the more significant antioxidant activity for the seeds than for the pulp. Carotenoids concentration in the seeds found of 2.52 ± 0.04 mg mL-1 and vitamin C concentrations were also quantified in trace concentrations, presenting the fruits of Patauá high biotechnological interest in the food and cosmetic industry.
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