2015
DOI: 10.1590/1981-6723.5014
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Clarification of purple cactus pear juice using microfiltration membranes to obtain a solution of betalain pigments

Abstract: Summary 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 antiox… Show more

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Cited by 6 publications
(3 citation statements)
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References 31 publications
(41 reference statements)
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“…In recent years, some studies have focused on separation of betalains by membrane technologies. For example, (Vergara, Cancino-Madariaga, Ramírez-Salvo, Sáenz, Robert, & Lutz, 2015) clarified a purple cactus pear juice by microfiltration. They obtained very clear permeates, free of turbidity, 70% of betalains retention and also containing polyphenols and high antioxidant activity.…”
Section: Highlightsmentioning
confidence: 99%
“…In recent years, some studies have focused on separation of betalains by membrane technologies. For example, (Vergara, Cancino-Madariaga, Ramírez-Salvo, Sáenz, Robert, & Lutz, 2015) clarified a purple cactus pear juice by microfiltration. They obtained very clear permeates, free of turbidity, 70% of betalains retention and also containing polyphenols and high antioxidant activity.…”
Section: Highlightsmentioning
confidence: 99%
“…It is used mainly in foods that do not require thermal treatment, such as yogurt, confectionery, ice cream, syrups and sausages (Vergara et al, 2015).…”
Section: Colour Measurementmentioning
confidence: 99%
“…Therefore, other methods for concentrating cactus mucilage are based on freezing, sublimation, and filtration with membranes (Bhattacharjee et al., 2017). Filtration with membranes have been widely applied to clarify and concentrate different fruit juices, even cactus pear juice (Cassano et al, 2007, 2010; Castro‐Muñoz et al, 2018; Vergara et al., 2015), but most of these studies carry out an enzymatic pre‐treatment (Cassano et al, 2007, 2010; Castro‐Muñoz et al, 2018; Vergara et al., 2015). The enzymes degrade soluble pectin in the pulp, disintegrate the jelly structure, and decrease the viscosity of the juice (Kashyap et al., 2001).…”
Section: Introductionmentioning
confidence: 99%