Rice antioxidants: phenolic acids, flavonoids, anthocyanins, proanthocyanidins, tocopherols, tocotrienols, γ ‐oryzanol, and phytic acid
Year: 2014
Type: review
Abstract: Epidemiological studies suggested that the low incidence of certain chronic diseases in rice-consuming regions of the world might be associated with the antioxidant compound contents of rice. The molecules with antioxidant activity contained in rice include phenolic acids, flavonoids, anthocyanins, proanthocyanidins, tocopherols, tocotrienols, γ-oryzanol, and phytic acid. This review provides information on the contents of these compounds in rice using a food composition database built from compiling data from 316 papers. The database provides access to information that would have otherwise remained hidden in the literature. For example, among the four types of rice ranked by color, black rice varieties emerged as those exhibiting the highest antioxidant activities, followed by purple, red, and brown rice varieties. Furthermore, insoluble compounds appear to constitute the major fraction of phenolic acids and proanthocyanidins in rice, but not of flavonoids and anthocyanins. It is clear that to maximize the intake of antioxidant compounds, rice should be preferentially consumed in the form of bran or as whole grain. With respect to breeding, japonica rice varieties were found to be richer in antioxidant compounds compared with indica rice varieties. Overall, rice grain fractions appear to be rich sources of antioxidant compounds. However, on a whole grain basis and with the exception of γ-oryzanol and anthocyanins, the contents of antioxidants in other cereals appear to be higher than those in rice.
Source: Food Science & Nutrition
DOI: 10.1002/fsn3.86
Authors: Piebiep Goufo, Henrique Trindade
Language: English
Subfield: Biochemistry (medical)
Field: Medicine
Domain: Health Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $3,630
Awards: G1578237752, G5618159784, INTERACTIONS OF ELEVATED CONCENTRATION OF CO2 AND INCREASED TEMPERATURE ON GROWTH, SECONDARY METABOLITE PRODUCTION, NUTRITIONAL AND SENSORY QUALITY OF IRRIGATED PORTUGUESE RICE GROWN IN CONTRASTING SOILS, Emissões gasosas medidas em campos regados de arroz produzido em dois solos diferentes, em Portugal, por efeito das práticas culturais, do clima e do aumento da concentração de CO2 na atmosfera, G8868700560
OpenAlex ID: W1994515390