Extraction, purification and nuclear magnetic resonance (NMR) assignment of garcinoic acid from Garcinia kola (bitter kola) fruit | Zendy

Jones Orock B. | Zendy; J. Henry Blackwell | Zendy; Ortin Yannick | Zendy; Evans Paul | Zendy

Open Access

Extraction, purification and nuclear magnetic resonance (NMR) assignment of garcinoic acid from Garcinia kola (bitter kola) fruit

Author(s) -

Jones Orock B.,

J. Henry Blackwell,

Ortin Yannick,

Evans Paul

Publication year - 2018

Publication title -

african journal of pure and applied chemistry

Language(s) - English

Resource type - Journals

ISSN - 1996-0840

DOI - 10.5897/ajpac2018.0752

Subject(s) - garcinia kola , chemistry , extraction (chemistry) , nuclear magnetic resonance spectroscopy , yield (engineering) , chromatography , organic chemistry , traditional medicine , medicine , materials science , metallurgy

Continuous extraction of bitter kola nuts, followed by liquid-liquid extraction and flash column chromatography leads to the isolation of garcinoic acid (-tocotrienoloic acid), as the main lipophilic component in a 0.8% yield of the initial dry weight. This compound, an oxidised member of the vitamin E family, was structurally characterised using nuclear magnetic resonance spectroscopy. Key words: Vitamin E, tocopherol, antioxidant, two-dimensional nuclear magnetic resonance spectroscopy.

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