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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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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Author(s):
Bittencourt, G. M. [1] ; Firmiano, D. M. [1] ; Fachini, R. P. [1] ; Lacaz-Ruiz, R. [2] ; Fernandes, A. M. [3] ; Oliveira, A. L. [1]
Total Authors: 6
Affiliation:
[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
Total Affiliations: 3
Document type: Journal article
Source: Journal of Food Science; v. 84, n. 6, p. 1297-1307, JUN 2019.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 16/13460-8 - Study of extraction of mesocarp and almonds from babaçu, from Brazil nuts, Pequi almonds and Sacha Inchi seeds using supercritical CO2 and pressurized liquid
Grantee:Alessandra Lopes de Oliveira
Support Opportunities: Regular Research Grants