Physicochemical evaluation of whole orange juice commercialized in Brazil
Alda Maria Otoboni, Sandra Maria Barbalho, Paulo Marinelli, Marie Oshiiwa, Ítalo Marcos Tamazzo de Oliveira, Cláudia Cristina Teixeira Nicolau, Amanda Guedes Pinto, Larissa Maria Dos Santos, Vinicius Rodrigues Da Silva
Background: Brazil is the world leader in growing oranges and most of this production is destined for juice production. The quality of the juices is very important to consumers that intend to benefit of this kind of beverage.
Aim: In this context, the aim of this work was to evaluate the physicochemical parameters as well as the presence of vitamin C, anthocyanins and carotenoids in different brands of whole orange juice.
Methods: We have studied seven commercial brands of whole orange juice that were denominated 1A, 1B, 2, 3, 4, 5, 6A, 6B and 7. Evaluation of pH, Total soluble solids, Total carbohydrates content, Ratio, Ascorbic acid, Anthocyanins and Carotenoids were performed.
Results: According to the Brazilian identity standards for juices, only the whole orange juice of brand 1A was not in accordance with the regular standards. The Brazilian Legislation determines that orange juice presents at least 25.5 mg of ascorbic acid in 100 mL of juice, so the brands 2, 5, 6A and 6B possess values below the minimum established by Legislation. Furthermore, our results showed significant differences between the brands. Significant differences were found for the levels of anthocyanins and carotenoids among the brands. According to Brazilian Legislation, we may say that only brands 3, 4 and 7 meet all the legal requirements for the commercialization of orange juice.
Conclusion: We suggest that parameters such as anthocyanins and carotenoids should be considered once they promote benefits to human health as well we suggest a more rigorous inspection, thus benefiting consumers and avoiding misunderstandings when choosing and acquiring the product.