Details

Autor(en) / Beteiligte

• Vergara, Cristina
• Cancino-Madariaga, Beatriz
• Ramírez-Salvo, Andrés
• Sáenz, Carmen
• Robert, Paz
• Lutz, Mariane

Titel

Clarification of purple cactus pear juice using microfiltration membranes to obtain a solution of betalain pigments/Clarificação de suco de figo da índia do tipo púrpura com membranas de microfiltração para obtenção de uma solução de pigmentos de betalaínas

Ist Teil von

• Revista brasileira de tecnologia de alimentos, 2015-07, Vol.18 (3), p.220

Ort / Verlag

Campinas: Instituto de Tecnologia de Alimentos (ITAL)

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Elektronische Zeitschriftenbibliothek - Freely accessible e-journals

Beschreibungen/Notizen

• Betalains are fruit pigments possessing health-giving properties. To isolate the pigments, the juice must be separated from the fruit matrix, which contains biopolymers. The aim of this study was to clarify cactus pear juice by microfiltration to obtain a clarified juice containing betalains. For this purpose, two 0.2 µm pore size microfiltration membranes (ceramic and polymeric) were tested. The permeates were clear, free of turbidity and high in betalains (20%), also containing polyphenols and antioxidant activity, whereas the retained fractions were high in mucilage. The best separation was obtained using the ceramic membrane.