Quantitative analysis of trigonelline in some <i>Annona</i> species by proton NMR spectroscopy

doi:10.1007/s13659-013-0051-6

Natural Products and Bioprospecting

2013, Vol. 3

Issue (4) : 158-160 DOI: 10.1007/s13659-013-0051-6

Short Communication

Quantitative analysis of trigonelline in some Annona species by proton NMR spectroscopy

Alan Rodrigues Teixeira MACHADO, Gisele Avelar LAGE, Felipe da Silva MEDEIROS, José Dias de Souza FILHO, Lúcia Pinheiro Santos PIMENTA

Departamento de Química, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brasil

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Abstract A quantitative ¹H NMR method (qHNMR) was used to measure the trigonelline content in the leaves of six species of the Annona genus. The methodology employed compared the intensities of the signals at δ 9.14 (H-2) and δ 0.00, the internal standard TSP-d₄. This measuring method was able to establish the concentration of trigonelline in the range from 0.67 to 10.04 mg·g^-1 depending on the investigated extract.

Keywords trigonelline Annona quantitative ¹H NMR

Issue Date: 11 February 2018

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	Alan Rodrigues Teixeira MACHADO
	Gisele Avelar LAGE
	Felipe da Silva MEDEIROS
	José Dias de Souza FILHO
	Lúcia Pinheiro Santos PIMENTA

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Alan Rodrigues Teixeira MACHADO,Gisele Avelar LAGE,Felipe da Silva MEDEIROS, et al. Quantitative analysis of trigonelline in some Annona species by proton NMR spectroscopy[J]. Natural Products and Bioprospecting, 2013, 3(4): 158-160.

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http://npb.kib.ac.cn/EN/10.1007/s13659-013-0051-6 OR http://npb.kib.ac.cn/EN/Y2013/V3/I4/158

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