Tucumã (<i>Astrocaryum aculeatum</i>) extract: phytochemical characterization, acute and subacute oral toxicity studies in<i>Wistar</i>rats

Guex, Camille Gaube; Cassanego, Gabriela Buzatti; Dornelles, Rafaela Castro; Casoti, Rosana; Engelmann, Ana Martiele; Somacal, Sabrina; Maciel, Roberto Marinho; Duarte, Thiago; Borges, Warley de Souza; Andrade, Cínthia Melazzo de; Emanuelli, Tatiana; Danesi, Cristiane Cademartori; Ribeiro, Euler Esteves; Bauermann, Liliane de Freitas

doi:10.1080/01480545.2020.1777151

Cited by 12 publications

(14 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is possibly related to the increase in kinetic energy of the reactant species (ions and molecules) promoted by temperature and, consequently, a higher probability that collisions among reactants overcome the potential barrier, leading to product formation. 31,32 After reaching the maximum absorbance for the SPR band, there was a decrease in the pH of the reaction media from 9.0 to 7.82 for the sample at 30 °C, to 7.55 at 40 °C and to 7.42 at 50 °C, suggesting the rupture of O-H bonds in different secondary metabolites with antioxidant properties, such as the phenolic compounds found in the pulp of tucumã, 19,20 decreasing the alkalinity of the colloids through the release of H + ions. The rupture of this bond is believed to be the first of several reactions involved in the reduction mechanism of silver ions.…”

Section: Resultsmentioning

confidence: 99%

“…18 Its fibrous and orange-colored pulp is particularly caloric as it contains large amounts of fatty acids, especially unsaturated ones, as well as a wide variety of other secondary metabolites, e.g., phenolic compounds and carotenoids. 19,20 Currently, the fruit exhibits low technological exploration and no studies are reported about the uses of its pulp extract for the synthesis of metallic nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Production of Silver Nanoparticles Mediated by Aqueous Extracts of Tucumã (Astrocaryum aculeatum) Pulp

Souza¹,

Couto²,

Silva³

et al. 2023

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

Tucumã (Astrocaryum aculeatum) pulp presents a large number of secondary metabolites that can mediate the synthesis of metallic nanoparticles through a greener and more sustainable synthetic route than traditional ones. This study investigated the production of silver nanoparticles (AgNPs) mediated by aqueous extracts of tucumã pulp assessing different parameters, such as temperature, concentration of extract, and pH values of the reaction media. The alkaline reaction media produced the most intense and well-defined bands around 400 nm in the electronic spectra, indicating the formation of AgNPs in the three concentrations of tucumã pulp evaluated. The increase in the temperature of the reaction media also enhanced the surface plasmon resonance band of AgNPs but it increased the polydispersivity of produced nanoparticles according to the dynamic light scattering (DLS) and transmission electron microscopy (TEM) data. Zeta potential results indicated moderate stability of the AgNPs (close to -30 mV). Antimicrobial assessment of the colloidal metal particles indicated microbicide activity against the Gram-negative Escherichia coli bacterium.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Production of Silver Nanoparticles Mediated by Aqueous Extracts of Tucumã (Astrocaryum aculeatum) Pulp

Souza¹,

Couto²,

Silva³

et al. 2023

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…Ethanolic extracts from the pulp and peel of tucumã-do-Amazonas have shown positive effects on preventing memory loss and oxidative damage in rats with hyperlipidemia [229] and anti-inflammatory activity and antioxidant properties in cell cultures [82]. It was also verified that the ethanolic extract has no cytotoxic effect in Wistar rats [230], suggesting its safety for consumption or use as an ingredient in food formulations.…”

Section: Co-products From the Oil Extraction Of Arecaceae Palm Fruitsmentioning

confidence: 88%

“…Extracts with antifungal and antibacterial activity [228] Extracts with antioxidant and anti-inflammatory activity [82,229] Extracts with no cytotoxic effects in Wistar rats [230] Babassu mesocarp…”

Section: Macaúba Kernelmentioning

confidence: 99%

Emerging Lipids from Arecaceae Palm Fruits in Brazil

2022

View full text Add to dashboard Cite

Arecaceae palm tree fruits (APTFs) with pulp or kernel rich in oil are widely distributed in six Brazilian biomes. APTFs represent a great potential for the sustainable exploitation of products with high added value, but few literature studies have reported their properties and industrial applications. The lack of information leads to underutilization, low consumption, commercialization, and processing of these fruit species. This review presents and discusses the occurrence of 13 APTFs and the composition, physicochemical properties, bioactive compounds, and potential applications of their 25 oils and fats. The reported studies showed that the species present different lipid profiles. Multivariate analysis based on principal component analysis (PCA) and hierarchical cluster analysis (HCA) indicated a correlation between the composition of pulp and kernel oils. Myristic, caprylic, capric, and lauric acids are the main saturated fatty acids, while oleic acid is the main unsaturated. Carotenoids and phenolic compounds are the main bioactive compounds in APTFs, contributing to their high oxidative stability. The APTFs oils have a potential for use as foods and ingredients in the cosmetic, pharmaceutical, and biofuel industries. However, more studies are still necessary to better understand and exploit these species.

show abstract

“…The fruit is globose to ovoid, 35-45 mm long and 25-35 mm wide, and consists of a fleshy orange-red, fatty mesocarp (pulp) that covers a single large seed (Figure 1). The mesocarp is slightly sweet and has a flavor reminiscent of apricots and is very nutritious, containing a relatively high concentration of carotenoids with a very high concentration of β-carotene (about 52 mg per 100 g), in addition to appreciable amounts of vitamin E, vitamin B 2 (riboflavin), as well as carbohydrates, proteins, and saturated fatty acids (such as oleic acid and palmitic acid), and polyunsaturated fatty acids (such as omega-3, omega-6, and omega-9 fatty acids) [77,78].…”

Section: Antioxidant Vitamins: Vitamin A: Astrocaryum Vulgare Mart (A...mentioning

confidence: 99%

Naturally Occurring Antioxidants in Seven Well-Known Fruits from the Republic of Suriname (South America): Part 2

Mans¹

2023

Biochemistry

View full text Add to dashboard Cite

The dependence of humans on oxygen for their metabolism, together with their uninterrupted exposure to a wide variety of hazardous environmental chemicals, leads to the continuous formation of reactive oxygen-derived species (ROS) in the body such as superoxide radical anion, hydrogen peroxide, peroxyl radicals, and hydroxyl radical. When in excess, ROS can damage cellular constituents such as DNA and membrane lipids causing oxidative stress, cellular injury, and eventually, inflammatory, neoplastic, diabetic, cardiovascular, neurodegenerative, and age-related diseases. Fortunately, the body has a multitude of naturally occurring antioxidants in dietary fruits and vegetables to its disposal, including polyphenolic compounds, vitamins, and essential minerals. These antioxidants eliminate ROS by acting as reducing agents, hydrogen donors, quenchers of singlet oxygen, or chelators of metal ions that catalyze oxidation reactions, thus decreasing the risk of the above-mentioned diseases. Part 1 of this chapter has comprehensively addressed three representative examples of fruits from the Republic of Suriname (South America) that are rich in the polyphenolics anthocyanins, ellagitannins, and coumarins and has highlighted their antioxidant activity and beneficial and health-promoting effects. This second part deals with four Surinamese fruits with an abundance of (pro)vitamins A, C, and E and selenium in light of their antioxidant activities.

show abstract

Tucumã (Astrocaryum aculeatum) extract: phytochemical characterization, acute and subacute oral toxicity studies inWistarrats

Cited by 12 publications

References 50 publications

Production of Silver Nanoparticles Mediated by Aqueous Extracts of Tucumã (Astrocaryum aculeatum) Pulp

Production of Silver Nanoparticles Mediated by Aqueous Extracts of Tucumã (Astrocaryum aculeatum) Pulp

Emerging Lipids from Arecaceae Palm Fruits in Brazil

Naturally Occurring Antioxidants in Seven Well-Known Fruits from the Republic of Suriname (South America): Part 2

Contact Info

Product

Resources

About