title: Brazilian fruit pulps as functional foods and additives: evaluation of bioactive compounds.
abstract: Eight tropical fruit pulps from Brazil were simultaneously characterised in terms of their antioxidant and antimicrobial properties. Antioxidant activity was screened by DPPH radical scavenging activity (126-3987 mg TE/100g DW) and ferric reduction activity power (368-20819 mg AAE/100g DW), and complemented with total phenolic content (329-12466 mg GAE/100g DW) and total flavonoid content measurements (46-672 mg EE /100g DW), whereas antimicrobial activity was tested against the most frequently found food pathogens. Acerola and açaí presented the highest values for the antioxidant-related measurements. Direct correlations between these measurements could be observed for some of the fruits. Tamarind exhibited the broadest antimicrobial potential, having revealed growth inhibition of Pseudomonas aeruginosa. Escherichia coli, Listeria monocytogenes, Salmonella sp. and Staphylococcus aureus. Açaí and tamarind extracts presented an inverse relationship between antibacterial and antioxidant activities, and therefore, the antibacterial activity cannot be attributed (only) to phenolic compounds.
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal; Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, s/n, 60455-760 Fortaleza, Ceará, Brazil.
authors.forename: Mário
authors.initials: M
authors.lastname: Paz
authors.affiliation: Center for Biotechnology and Fine Chemistry (CBQF), Portuguese Catholic University, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.
authors.forename: Patricia
authors.initials: P
authors.lastname: Gúllon
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
authors.forename: M Fátima
authors.initials: MF
authors.lastname: Barroso
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. Electronic address: ana.carvalho@graq.isep.ipp.pt.
authors.forename: Ana P
authors.initials: AP
authors.lastname: Carvalho
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
authors.forename: Valentina F
authors.initials: VF
authors.lastname: Domingues
authors.affiliation: Center for Biotechnology and Fine Chemistry (CBQF), Portuguese Catholic University, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.
authors.forename: Ana M
authors.initials: AM
authors.lastname: Gomes
authors.affiliation: Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, s/n, 60455-760 Fortaleza, Ceará, Brazil.
authors.forename: Helena
authors.initials: H
authors.lastname: Becker
authors.affiliation: Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, s/n, 60455-760 Fortaleza, Ceará, Brazil.
authors.forename: Elisane
authors.initials: E
authors.lastname: Longhinotti
authors.affiliation: REQUIMTE, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal.
authors.forename: Cristina
authors.initials: C
authors.lastname: Delerue-Matos
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology; D001938:Brazil; D004926:Escherichia coli / Q000187:drug effects; D065748:Euterpe / Q000737:chemistry; D005419:Flavonoids / Q000032:analysis; D005638:Fruit / Q000737:chemistry*; D055951:Functional Food; D008089:Listeria monocytogenes / Q000187:drug effects; D029581:Malpighiaceae / Q000737:chemistry; D008826:Microbial Sensitivity Tests; D010636:Phenols / Q000032:analysis; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D012475:Salmonella / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects; D029861:Tamarindus / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D000975:Antioxidants; D005419:Flavonoids; D010636:Phenols
keywords: Antibacterial activity; Antioxidant activity; DPPH; FRAP; Flavonoid content; Functional foods; Functional ingredients; Phenolic content; Tropical fruit pulps