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Betacyanin is the red-violet pigment possesses potent antiradical and antioxidant properties. Globally, natural colorants have gained much interest than synthetic colours due to their adverse ill effects. The study aimed to assess membrane technology for the concentration of betacyanin pigment from cactus pear employing forward osmosis. The effect of process parameters such as feed and osmotic agent solution (OAS) flowrate and temperature on betacyanin concentration was investigated using factorial design. Maximum concentration of betacyanin was obtained with 150 mL/min feed flowrate, 50 °C feed temperature, 150 mL/min OAS flowrate and 50 °C OAS temperature. Further, sodium chloride was the best OAS that concentrated betacyanin from 898 to 1325 mg/L with a transmembrane flux of 1.13 L/m h. Physico-chemical characteristics imply high retention of antioxidant activity and other nutrients during concentration process. The results revealed the suitability of forward osmosis for the concentration of betacyanin from - using cellulose acetate membrane.
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http://dx.doi.org/10.1007/s13197-018-3149-3 | DOI Listing |
J Food Sci
August 2025
Department of Life Sciences and Systems Biology, Innovation Centre, University of Turin, Turin, Italy.
The increasing global demand for diverse and health-promoting foods has led to the expansion of tropical fruit cultivation beyond their native regions, notably into the Mediterranean area. This shift necessitates a deeper understanding of their phytochemical profiles, as environmental factors in new cultivation contexts can significantly influence the biosynthesis of their bioactive compounds. In this study, we explored the phytochemical and antioxidant properties of pitaya fruit, focusing on chemical fractionation and the link between its bioactive components and functional benefits.
View Article and Find Full Text PDFJ Chem Ecol
August 2025
State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
Plant coloration, predominantly regulated by various natural plant pigments, has been hypothesized to serve crucial ecological functions in plant-animal interactions. Betalains are a rare class of plant pigments synthesized exclusively in specific families within the Caryophyllales order. Their biosynthesis is restricted by the availability of nitrogen.
View Article and Find Full Text PDFMol Nutr Food Res
August 2025
Department of Food Science, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania.
Color has been recognized as a paramount sensory attribute in the food industry. Although synthetic colorants have traditionally been used to ensure consistent color in food products, growing concerns about their possible toxicity and environmental impact have led to a shift toward using natural, biobased pigments. This study explored the phytochemical stability of three natural colorants (phycocyanin, anthocyanins, and betacyanin) incorporated in a cheesecake product and their interactions with various sweeteners (sucrose, fructose, sorbitol, dextrose, and xylitol).
View Article and Find Full Text PDFFoods
July 2025
Colegio de Postgraduados, Campus Montecillo, Carretera México-Texcoco, Km. 36.5, Montecillo, Texcoco 56264, Mexico.
L. (Mill) belongs to the Cactaceae family. The plant produces edible and juicy fruits called cactus pear, recognized for their pleasant flavor and functional properties.
View Article and Find Full Text PDFFood Chem
November 2025
Department of Process Engineering and Applied Science, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada. Electronic address:
Betanin, the red pigment in red beet extract (RBE), is susceptible to degradation under acidic conditions, limiting its application as a colorant and ingredient in food products. This study investigated complex formation between betanin in RBE with pea protein isolate (PPI) to improve the stability of betanin at pH 3. Spectroscopic analysis showed that the interactions between PPI and RBE affected the secondary and tertiary structure of PPI, and a transition from α-helical to β-sheet conformation occurred.
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