Nutritional Compositions and antioxidant activities of non-polar and polar extracts of germinated brown rice

Lim See Meng, Y. M. Goh, S. P. Loh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The objective of this study was to investigate the nutritional compositions and antioxidant activities (AA) of non-polar and polar extracts of germinated brown rice (GBR). Nutritional compositions such as moisture, ash, carbohydrate, fat, protein and fibre were determined. Energy and minerals content were determined by using bomb calorimetry and Atomic Absorption Spectroscopy (AAS), respectively. Total phenolic content (TPC) and total flavonoid content (TFC) of the extracts were determined by Folin-Ciocalteu method and aluminium chloride colorimetric method. The AA was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and [2,2′-Azinobis(3-ethylbenzothiazoline-6-sulfonic acid)] diammonium salt (ABTS) radical scavenging capacity assay, ferric reducing antioxidant potential (FRAP) assay, and β-carotene bleaching assay. Total energy content of GBR sample was 390.95±11.31 kcal/100g and carbohydrate (54.30±1.04 g/100 g) was the most abundant nutrient. The predominant minerals in the GBR sample were sodium, potassium and magnesium. The polar extract showed significantly higher (p0.90, p

Original languageEnglish
Pages (from-to)219-233
Number of pages15
JournalPertanika Journal of Tropical Agricultural Science
Volume39
Issue number2
Publication statusPublished - 1 May 2016
Externally publishedYes

Fingerprint

brown rice
antioxidant activity
energy content
extracts
assays
aluminum chloride
carbohydrates
sulfonic acid
atomic absorption spectrometry
calorimetry
carotenes
bleaching
mineral content
magnesium
flavonoids
potassium
sodium
minerals
salts
antioxidants

Keywords

  • Antioxidant activities
  • Germinated brown rice
  • Nutritional composition

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Nutritional Compositions and antioxidant activities of non-polar and polar extracts of germinated brown rice. / See Meng, Lim; Goh, Y. M.; Loh, S. P.

In: Pertanika Journal of Tropical Agricultural Science, Vol. 39, No. 2, 01.05.2016, p. 219-233.

Research output: Contribution to journalArticle

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