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Guarana (Paullinia cupana) is a plant that hails from the Amazon. Its many benefits include stimulant, anti-cancer, antibacterial, and weight loss effects. Because of the complexity of its constituents, it works in many ways. Guarana (Paullinia cupana) is a species of climbing plant native to the Amazon regions known for its stimulant and medicinal properties. It has been used for centuries by indigenous peoples of the Amazon for its diuretic properties, therapeutic effects against headaches, fever, and cramps, and aphrodisiac effects . With a taste that is described as slightly bitter, astringent, and acidic, guarana powder dissolved in water is considered by indigenous peoples as an elixir that promotes long life . The seeds of a guarana berry contain approximately 4 times the amount of caffeine as a coffee bean. Other guarana components, such as saponins and tannins, provide extra stimulant effects . Guarana is still primarily produced in the Brazilian states of Amazonas and Bahia. Approximately 70% of the production is used by soft and energy drink industries, while the other 30% becomes guarana powder for consumption directly or dilution in water, or as raw material for pharmaceutical and cosmetic industries . It is used widely for. Mental Health Stress Reduction. Source of Energy, vigor and vitality Weight Loss. Healthy Cardiovascular System Blood-Thinning Healthy Skin

Camu-camu is a native Amazonian fruit mainly known for its high vitamin C content. Its composition confers high antioxidant capacity on this fruit and makes it a potential source of antioxidant products. The use of spray-drying with the aid of a carrier agent is a technique that has been applied for the preservation of important components of foods and drugs. The objective of our work was to evaluate the influence of those agents used as shell material on the vitamin content and total phenolic compounds of camu-camu powder juice obtained by spray-drying. Materials and methods. A commercial frozen camu-camu pulp was the raw material; maltodextrin and gum arabic were the selected carrier agents. Processes were performed in a mini-spray-dryer with inlet and outlet air temperatures of 180 °C and 85 °C, respectively, and a drying air flow rate of 700 L·h1. Laser diffraction was used to determine the particle size distribution of the samples, and sorption isotherms of spray-dried camu-camu were measured using a static gravimetric method. Total phenolic compounds and vitamin C were determined in the raw pulp and in the powders obtained. Results. When using gum arabic and maltodextrin as the carrier agents, the moisture results obtained for the spray-dried camu-camu powders were 2.8% and 3.2%, respectively; the process yield was 84% and 72%, respectively. The spray-dried powder produced using gum arabic presented higher contents of vitamin C [(15,363 ± 226) mg·100 g1] and phenolic compounds [(6,654 ± 596) mg GAE·100 g1] than the powder obtained with maltodextrin, respectively (11,258 ± 298) mg·100 g1 and (5,912 ± 582) mg GAE·100 g1. Conclusions. The concentration factors for the vitamin C and phenolic compounds in camu-camu powder reveal the effectiveness of spray-drying to preserve the antioxidant capacity of this fruit. Gum arabic was a more effective barrier than maltodextrin for bioactive compound retention.