Absorption and Biological Activity of Phytochemical-Rich Extracts from Açai (Euterpe oleracea Mart.) Pulp and Oil in Vitro

2008 ◽  
Vol 56 (10) ◽  
pp. 3593-3600 ◽  
Author(s):  
Lisbeth A. Pacheco-Palencia ◽  
Stephen T. Talcott ◽  
Stephen Safe ◽  
Susanne Mertens-Talcott
Keyword(s):  
Biological Activity ◽  
Euterpe Oleracea ◽  
Euterpe Oleracea Mart

scholarly journals In vitro antibacterial effect of Euterpe oleracea Mart. and Theobroma grandiflorum hydroalcoholic extracts

2016 ◽  
Vol 21 (2) ◽  
Author(s):  
Lew Kan Sprenger ◽  
Elane Guerreiro Giese ◽  
Jeannie Nascimento Dos Santos ◽  
Marcelo Beltrão Molento
Keyword(s):  
Antimicrobial Activity ◽  
Inhibitory Concentration ◽  
Antimicrobial Treatment ◽  
Significant Inhibition ◽  
Diffusion Method ◽  
Gram Negative Bacteria ◽  
Euterpe Oleracea ◽  
Agar Disc ◽  
Euterpe Oleracea Mart

This study evaluated the in vitro antimicrobial activity of these species against strains of Gram-positive and Gram-negative bacteria. The hydroalcoholic extracts were prepared from dried leaves, pulp and seeds of E. oleracea Mart. and T. grandiflorum by continuous percolation with 70% ethyl alcohol. The antimicrobial activity was evaluated against four microorganisms by the agar disc diffusion method and the minimal inhibitory concentration (MIC) assay. The antimicrobial activity showed that the açai pulp and seeds possessed significant inhibition in Clostridium perfringens (320 and 640 MIC), Staphylococcus aureus (80 and 320 MIC) and Pseudomonas aeruginosa (640 and 2560 MIC). Cupuassu extracts showed no effect on any bacteria. The use of açai extract products can be a sustainable, viable and an accessible alternative for antimicrobial treatment. New studies should be conducted to determine better results for acai herbals and new formulations of cupuassu extracts.

scholarly journals Chemical Genomic Profiling Unveils the in Vitro and in Vivo Antiplasmodial Mechanism of Açaı́ (Euterpe oleracea Mart.) Polyphenols

ACS Omega ◽  
2019 ◽  
Vol 4 (13) ◽  
pp. 15628-15635 ◽  
Author(s):  
Letícia T. Ferreira ◽  
Vinícius P. Venancio ◽  
Taila Kawano ◽  
Lailah C. C. Abrão ◽  
Tatyana A. Tavella ◽  
...  
Keyword(s):  
Genomic Profiling ◽  
Euterpe Oleracea ◽  
Chemical Genomic ◽  
Euterpe Oleracea Mart

scholarly journals Enhancing Thermal Stability and Bioaccesibility of Açaí Fruit Polyphenols through Electrohydrodynamic Encapsulation into Zein Electrosprayed Particles

Antioxidants ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 464 ◽  
Author(s):  
Carol López de Dicastillo ◽  
Constanza Piña ◽  
Luan Garrido ◽  
Carla Arancibia ◽  
María José Galotto
Keyword(s):  
Thermal Stability ◽  
Chemical Interaction ◽  
In Vitro Digestion ◽  
Antioxidant Compounds ◽  
Euterpe Oleracea ◽  
Polyphenolic Content ◽  
Average Size ◽  
Functional Components ◽  
Euterpe Oleracea Mart

The açaí fruit (Euterpe oleracea Mart.) is well known for its high content of antioxidant compounds, especially anthocyanins, which provide beneficial health properties. The incorporation of this fruit is limited to food products whose processing does not involve the use of high temperatures due to the low thermal stability of these functional components. The objective of this work was the encapsulation of açaí fruit antioxidants into electrosprayed zein, a heat-resistant protein, to improve their bioavailability and thermal resistance. First, the hydroalcoholic açaí extract was selected due to its high polyphenolic content and antioxidant capacities, and, subsequently, it was successfully encapsulated in electrosprayed zein particles. Scanning electron microscopy studies revealed that the resulting particles presented cavities with an average size of 924 nm. Structural characterization by Fourier transform infrared spectroscopy revealed certain chemical interaction between the active compounds and zein. Encapsulation efficiency was approximately 70%. Results demonstrated the effectiveness of the encapsulated extract on protecting polyphenolic content after high-temperature treatments, such as sterilization (121 °C) and baking (180 °C). Bioaccesibility studies also indicated an increase of polyphenols presence after in vitro digestion stages of encapsulated açaí fruit extract in contrast with the unprotected extract.

scholarly journals Somatic embryogenesis from zygotic embryos of Euterpe oleracea Mart.

2002 ◽  
Vol 24 (3) ◽  
pp. 601-603 ◽  
Author(s):  
Ana da Silva Ledo ◽  
Osmar Alves Lameira ◽  
Abdellatif Kemaleddine Benbadis ◽  
Ilmarina Campos de Menezes ◽  
Maria do Socorro Padilha de Oliveira ◽  
...  
Keyword(s):  
Somatic Embryogenesis ◽  
Somatic Embryos ◽  
Zygotic Embryos ◽  
Ms Medium ◽  
Euterpe Oleracea ◽  
Mineral Salts ◽  
Vegetable Material ◽  
Morphogenetic Responses ◽  
Euterpe Oleracea Mart

The aim of this work was to study the morphogenetic responses of zygotic embryos of açai palm (Euterpe oleracea Mart.) submitted to several conditions of in vitro culture. Several research experiments were conducted, in laboratory, using vegetable material collected from açai palm plants at Embrapa Amazon Oriental, Belém-PA, Brazil. It was possible to verify the expression of a direct, repetitive and no-synchronized model of somatic embryogenesis in mature zygotic embryos cultivated in primary MS medium supplemented with 2,4-D (339.36 muM) and transferred to a secondary MS medium in the presence of NAA (0.537 muM) and 2iP (12.30 muM). The conversion of somatic embryos into seedlings was reached after 210 days with the transfer of the cultures to a third medium with sucrose and mineral salts concentrations reduced to a half, without growth regulators.

scholarly journals The powerful in vitro bioactivity of Euterpe oleracea Mart. seeds and related phenolic compounds

2015 ◽  
Vol 76 ◽  
pp. 318-322 ◽  
Author(s):  
Lillian Barros ◽  
Ricardo C. Calhelha ◽  
Maria João R.P. Queiroz ◽  
Celestino Santos-Buelga ◽  
Elândia A. Santos ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Euterpe Oleracea ◽  
In Vitro Bioactivity ◽  
Euterpe Oleracea Mart

scholarly journals Effect of in vitro gastrointestinal digestion on the mineral content, phenolic compounds, and antioxidant capacity of commercial pulps of purple and white açaí (Euterpe oleracea Mart.)

2019 ◽  
Vol 57 (5) ◽  
pp. 1740-1752
Author(s):  
Elaine Carvalho Minighin ◽  
Karine Freire de Souza ◽  
Virginia del Carmen Troncoso Valenzuela ◽  
Nilton de Oliveira Couto e Silva ◽  
Luicilene Rezende Anastácio ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Mineral Content ◽  
Euterpe Oleracea ◽  
Gastrointestinal Digestion ◽  
In Vitro Gastrointestinal Digestion ◽  
Euterpe Oleracea Mart
Sign in / Sign up

Export Citation Format

Share Document