Author(s):
Baptista, Eugénia ; Liberal, Ângela ; Cardoso, Rossana V.C. ; Fernandes, Ângela ; Dias, Maria Inês ; Pires, Tânia C.S.P. ; Calhelha, Ricardo C. ; García, Pablo A. ; Ferreira, Isabel C.F.R. ; Barreira, João C.M.
Date: 2024
Persistent ID: http://hdl.handle.net/10198/29954
Origin: Biblioteca Digital do IPB
Project/scholarship:
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT;
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00690%2F2020/PT;
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT;
Subject(s): Bioactive compounds; Chemical characterization; Nutritional value; Red rice; Super-food
Description
Red rice has been proposed as a super-food. Accordingly, the nutritional properties (AOAC), as well as its chemical composition, including sugars (HPLC-RI), organic acids (UFLC-PDA), tocopherols (HPLD-FD), and phenolic compounds (LC-DAD-ESI/MSn), together with the main bioactive properties (antioxidant, cytotoxic, antiproliferative, and antibacterial activities), were evaluated to access its nutritional benefits and health improvement potential. The most abundant macronutrients found were carbohydrates (87.2 g/100 g dw), proceeded by proteins (9.1 g/100 g dw), fat (2.6 g/100 g dw), and ash (1.1 g/100 g dw). Sucrose and raffinose were the only detected sugars, with sucrose presenting the maximum concentration (0.74 g/100 g dw). MUFAs and PUFAs were the predominant fatty acids (40.7% and 31%, respectively). Among the two detected tocopherol isoforms, γ-tocopherol (0.67 mg/100 g dw) predominated over α-tocopherol. The phenolic compounds profile, majorly composed of flavan-3-ols, should be associated with the detected bioactivities, which may provide biological benefits to human health beyond the primary nutritional effect. Overall, the bioactive potential of red rice was comprehensively accessed.
This work was supported by national funds through FCT/MCTES (PIDDAC): CIMO, UIDB/00690/2020 (DOI: 10.54499/UIDB/00690/2020), UIDP/00690/2020 (DOI: 10.54499/UIDP/ 00690/2020), and SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020). A. Fernandes, M.I. Dias, R.C. Calhelha, and J.C.M. Barreira are also grateful for the national funding by FCT. P.I. through the institutional and individual program contract. The authors are grateful to FEDER Cooperación Interreg VI A Espanha—Portugal (POCTEP) 2021–2027 for its financial support provided through the project TRANSCoLAB PLUS 0112_TRANSCOLAB_PLUS_2_P.
