Changes in lipid substances in rice during grain development

Nam Ho Kim, Jieun Kwak, Ji Yeon Baik, Mi Ra Yoon, Jeom Sig Lee, Sung Won Yoon, In-Hwan Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Lipid substances, such as fatty acids, γ-oryzanol, policosanols, and tocol (tocopherol + tocotrienol), were investigated in two rice cultivars, Ilpum and Dasan, during rice development. In both cultivars, the lipid extract level decreased steadily after it reached its maximum level. Additionally, there were differences in the fatty acid composition, depending on the rice developmental stage, between the two cultivars. The γ-oryzanol level increased during rice development, and there were differences in the composition of γ-oryzanol between the two cultivars. The levels of policosanols drastically decreased during the early stage of rice development in the two cultivars. The total tocol level showed a downward trend during rice development. The predominant tocol isomer in Ilpum was α-tocopherol during rice development. In Dasan, the predominant tocol isomer was α-tocopherol at the early stage, but γ-tocotrienol at the later stage. This study provided information on the levels and composition of lipid substances, such as fatty acids, γ-oryzanol, policosanols, and tocol during rice development.

Original languageEnglish
JournalPhytochemistry
Volume116
DOIs
Publication statusPublished - 2015 Jun 9

Fingerprint

Tocotrienols
Tocopherols
policosanol
seed development
tocotrienols
tocopherols
oryzanol
Lipids
rice
lipids
Fatty Acids
cultivars
Isomers
isomers
Chemical analysis
fatty acids
Oryza
lipid composition
fatty acid composition
developmental stages

Keywords

  • Fatty acid
  • Grain development
  • Gramineae
  • Policosanol
  • Rice (Oryza sativa L.)
  • Tocopherol
  • Tocotrienol
  • γ-Oryzanol

ASJC Scopus subject areas

  • Biochemistry
  • Medicine(all)
  • Molecular Biology
  • Plant Science
  • Horticulture

Cite this

Changes in lipid substances in rice during grain development. / Kim, Nam Ho; Kwak, Jieun; Baik, Ji Yeon; Yoon, Mi Ra; Lee, Jeom Sig; Yoon, Sung Won; Kim, In-Hwan.

In: Phytochemistry, Vol. 116, 09.06.2015.

Research output: Contribution to journalArticle

Kim, Nam Ho ; Kwak, Jieun ; Baik, Ji Yeon ; Yoon, Mi Ra ; Lee, Jeom Sig ; Yoon, Sung Won ; Kim, In-Hwan. / Changes in lipid substances in rice during grain development. In: Phytochemistry. 2015 ; Vol. 116.
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