Isolation and mass spectroscopic characterization of phytochemicals from the bark of Acacia leucophloea (Roxb.) Willd.

ABSTRACT Acacia leucophloea is a medicinal plant used traditionally for treating many diseases. In the present study, phytochemicals were isolated from the bark of A. leucophloea using multiple chromatographic techniques. The separation and isolation were done using column chromatography. The molecular masses of isolated compounds were assigned by electro spray ionization mass spectrometry. The subsequent structure characterization was carried out by a tandem mass spectrometric method. Fragmentation behavior of compounds was investigated using hexapole collision cell mass spectrometry in negative mode. Six phenolic compounds such as catechin, leuco-fisetinidin, gallic acid, ferulic acid, syringic acid, and O-methyl epicatechin were identified. Most of the compounds identified are first report from this plant.

[1]  I. Balachandran,et al.  Chemical Profiling of an Indian Herbal Formula Using Liquid Chromatography Coupled with Electro Spray Ionization Mass Spectrometry , 2015 .

[2]  A. Segura‐Carretero,et al.  Pine Bark and Green Tea Concentrated Extracts: Antioxidant Activity and Comprehensive Characterization of Bioactive Compounds by HPLC–ESI-QTOF-MS , 2014, International journal of molecular sciences.

[3]  I. Balachandran,et al.  Phenolic characterisation of selected Salacia species using LC-ESI-MS/MS analysis , 2014, Natural product research.

[4]  I. Balachandran,et al.  Chromatographic and Spectrophotometric Studies in Selected Acacia Species , 2014, JPC – Journal of Planar Chromatography – Modern TLC.

[5]  I. Balachandran,et al.  Reverse Phase Liquid Chromatography Coupled with Quadra pole- Time of Flight Mass Spectrometry for the Charecterisation of Phenolics from Acacia Catechu (L.f.) Willd. , 2013 .

[6]  B. Lewis,et al.  Characterization of phenolics by LC-UV/vis, LC-MS/MS and sugars by GC in Melicoccus bijugatus Jacq. 'Montgomery' fruits. , 2008, Food chemistry.

[7]  David Heber,et al.  Identification of phenolic compounds in strawberries by liquid chromatography electrospray ionization mass spectroscopy , 2005 .

[8]  R. Hamdy Medicinal and Aromatic Plants of Indian Ocean Islands , 2004 .

[9]  S. Y. Wang,et al.  Antioxidant activity and phenolic compounds in selected herbs. , 2001, Journal of agricultural and food chemistry.

[10]  F. H. Cano,et al.  Diterpenoids from Acacia leucophloea: revision of the structures of leucophleol and leucophleoxol. , 2001, Journal of natural products.

[11]  R. Tyrrell,et al.  Epicatechin and its in vivo metabolite, 3'-O-methyl epicatechin, protect human fibroblasts from oxidative-stress-induced cell death involving caspase-3 activation. , 2001, The Biochemical journal.

[12]  K. Janardhanan,et al.  Nutritional assessment and chemical composition of the lesser known tree legume, Acacia leucophloea (Roxb.) Willd , 1994 .