Data/hora: 02/06/2024 09:39:39

Biblioteca(s): | Embrapa Agroindústria de Alimentos; Embrapa Amazônia Oriental.
Data corrente: | 14/06/2011
Data da última atualização: | 11/11/2022
Autoria: | CRUZ, A. P. G.; MATTIETTO, R. de A.; DIB TAXI, C. M. A.; CABRAL, L. M. C.; DONANGELO, C. M.; MATTA, V. M. da.
Afiliação: | ANA PAULA GIL CRUZ, UFRJ; RAFAELLA DE ANDRADE MATTIETTO, CPATU; CRISTINA MARIA ARAÚJO DIB TAXI, UFRA; LOURDES MARIA CORREA CABRAL, CTAA; CARMEN MARINO DONANGELO, UFRJ; VIRGINIA MARTINS DA MATTA, CTAA.
Título: | Effect of microfiltration on bioactive components and antioxidant activity of açaí (Euterpe oleracea Mart.).
Ano de publicação: | 2011
Fonte/Imprenta: | Desalination and Water Treatment, Hopkinton, v. 27, p. 97-102, Mar. 2011.
Idioma: | Inglês
Conteúdo: | Microfiltration of centrifuged açaí pulp was performed using two types of membrane (ceramic and polymeric), each one at two temperatures (25 and 35°C), aiming to evaluate the influence of these parameters on its chemical composition and antioxidant activity. Temperature and membrane material did not significantly influence the bioactive components contents and the antioxidant activity of the two obtained fractions. However, permeate flux was strongly dependent on both factors, reaching the highest mean value (117 l/h m2) with the ceramic membrane at 35°C. Clarified juice, the permeate fraction, contained about 16 mg/100 g of anthocyanins, 138 mg/100 g of total phenolics and 9 umol Trolox/g of antioxidant activity. The retained fraction, with characteristics similar to the original açaí fruit, presented 75 mg/100 g of anthocyanins, 433 mg/100 g of total phenolics and 31 umol Trolox/g of antioxidant activity. Therefore, microfiltration of açaí resulted in two fractions with distinct characteristics, both rich in bioactive components and with potential industrial application.
Palavras-Chave: | Atividade antioxidante; Microfiltração.
Thesagro: | Açaí; Antocianina; Euterpe oleracea.
Thesaurus Nal: | Antioxidant activity; Bioactive properties; Microfiltration.

Categoria do assunto:

F Plantas e Produtos de Origem Vegetal
X Pesquisa, Tecnologia e Engenharia

Registro original: | Embrapa Amazônia Oriental (CPATU)

Exemplares:

CTAA - (10963-1) - UPC - AP - PP - 2011/011 -  - 2011.00313 - DIS
CPATU - (45144-1) - UPC - AP - DD -  -  -  - DIS