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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Application of Green Technology for the Acquisition of Extracts of Araca (Psidium grandifolium Mart. ex DC.) Using Supercritical CO2 and Pressurized Ethanol: Characterization and Analysis of Activity

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Autor(es):
Bittencourt, G. M. [1] ; Firmiano, D. M. [1] ; Fachini, R. P. [1] ; Lacaz-Ruiz, R. [2] ; Fernandes, A. M. [3] ; Oliveira, A. L. [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo LTAPPN ZEA FZEA USP, Fac Anim Sci & Food Engn, Dept Food Engn, Lab High Pressure Technol & Nat Prod, Ave Duque de Caxias Norte 225, Mailbox 23, BR-13635900 Pirassununga, SP - Brazil
[2] Univ Sao Paulo ZAB FZEA USP, Fac Anim Sci & Food Engn, Dept Basic Sci, Ave Duque de Caxias Norte 225, Mailbox 23, BR-13635900 Pirassununga, SP - Brazil
[3] Univ Sao Paulo ZMV FZEA USP, Fac Anim Sci & Food Engn, Dept Vet Med, Ave Duque de Caxias Norte 225, Mailbox 23, BR-13635900 Pirassununga, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Journal of Food Science; v. 84, n. 6, p. 1297-1307, JUN 2019.
Citações Web of Science: 0
Resumo

Brazil is home to a wide variety of flora, including several lesser known species, such as araca that were processed in this study using two green technologies consecutively: supercritical fluid extraction (SFE) for nonpolar fraction and pressurized liquid extraction. For polar fraction, the experiments followed a central composite design involving ethanol as solvent, with temperature and static time in each bath as independent variables. Both extracts were analyzed for antioxidant and antimicrobial activities. Total phenolics content (TPC) was determined for all ethanol extracts. In the araca essential oil (AEO) obtained by SFE, the extraction yield was 2.33%. The three major compounds of AEO were alpha-pinene (20.75%), p-cymene (20.50%), and o-cymene (20.05%). In ethanol extracts, the high yield (14.49%) was obtained at 74 degrees C/6 min and the major TPC (136.95 mg GAE/100 g) at 60 degrees C/9 min. Ethanol extracts presented good antioxidant activity (EC50 = 6.37 mg/mL) at 74 degrees C/6 min. AEO was unable to reduce DPPH center dot concentration by 50%. Both extract types presented an inhibitory effect against Staphylococcus aureus, Pseudomonas aeruginosa, and Bacillus cereus, while only the ethanol extracts presented effect against Listeria monocytogenes. This work had the aim to present the innovation of the use of a whole typical Brazilian fruit that gives rise to extracts with excellent properties for employment in both the pharmaceutical and food industries. (AU)

Processo FAPESP: 16/13460-8 - Estudo da obtenção de extratos do mesocarpo e das amêndoas de Babaçú, de castanha do Brasil, amêndoa de Pequi e sementes de Sacha Inchi usando extração com CO2 supercrítico e líquido pressurizado.
Beneficiário:Alessandra Lopes de Oliveira
Linha de fomento: Auxílio à Pesquisa - Regular