Issue 56, 2016, Issue in Progress

Determination of lipophilic and hydrophilic bioactive compounds in raw and parboiled rice bran

Abstract

Rice bran is one of the most important rice by-products and represents about 10% of rice production. This rice fraction contains large amounts of bioactive compounds; because of that, the aim of this study was to investigate the impact of parboiling on the concentration of lipophilic bioactive compounds (fatty acids, tocols, γ-oryzanol and, free + esterified and bound sterols and triterpenic alcohols) and free and cell wall-bound phenolic compounds. Parboiling treatment caused changes in fatty acid composition and increased the total tocols and γ-oryzanol content. GC-qTOF-MS analysis of phytosterol and triterpenic alcohols allowed the determination of 14 compounds that were quantified in free and bound form; free phytosterol and triterpenic alcohol compounds represented 10 and 43% of the total fraction in raw and parboiled rice bran, respectively. The analysis of free and bound phenolic compounds was carried out by HPLC-DAD-TOF-MS. The TOF analyzer permitted the determination of 24 free and 27 bound phenolic compounds and, to our knowledge, some of them have been quantified for the first time in rice.

Graphical abstract: Determination of lipophilic and hydrophilic bioactive compounds in raw and parboiled rice bran

Article information

Article type
Paper
Submitted
23 Feb 2016
Accepted
14 May 2016
First published
17 May 2016

RSC Adv., 2016,6, 50786-50796

Determination of lipophilic and hydrophilic bioactive compounds in raw and parboiled rice bran

V. Verardo, A. M. Gómez-Caravaca, E. Marconi, A. Segura-Carretero, A. Garrido-Frenich and A. Fernández-Gutiérrez, RSC Adv., 2016, 6, 50786 DOI: 10.1039/C6RA04836F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements