Malaysian Journal of Analytical Sciences Vol 19 No 4 (2015): 745 - 751

 

 

 

XANTHONES AND AN ANTHRAQUINONE FROM STEM BARK AND ROOTS OF CRATOXYLUM ARBORESCENS

 

(Xanthon dan Antrakuinon daripada Kulit Batang dan Akar Cratoxylum arborescens)

 

Samsiah Jusoh^1,2*, Laily B. Din², Zuriati Zakaria³

 

¹Rice and Industrial Crop Research Centre,

Malaysian Agricultural Research and Development Institute (MARDI),

Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia

²School of Chemical Sciences and Food Technology, Faculty of Science and Technology,

Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia

³Malaysia Japan Institute of Technology,

Universiti Teknologi Malaysia, 54100 Kuala Lumpur, Malaysia

 

*Corresponding author: samsiah@mardi.gov.my

 

 

Received: 23 November 2014; Accepted: 27 June 2015

 

 

Abstract

Phytochemical studies were conducted on the stem bark and roots of Cratoxylum arborescens that has been collected from Post Brooke, Gua Musang, Kelantan, Malaysia. Cratoxylum arborescens has orange latex like iodin. The orange latex from stem bark could be found because of existing xanthones compounds. Extraction of the stem bark using organic solvents followed by extensive purification using standard procedure of purification yielded three known xanthones, pruniflorone H (1), cochinchinone C (2) and macluraxanthone (3). Employing the same procedure, an anthraquinone, vismiaquinone (4) was isolated from the roots of the plants. These four compounds were characterized by NMR spectral data using 1D and 2D-techniques and comparison with the literature data. The result of this studies suggested that xanthones are the main compounds of Cratoxylum.

 

Keywords: cochinchinone C, guttiferae, macluraxanthone, prunifolorone H, vismiaquinone

 

Abstrak

Kajian fitokimia yang dijalankan ke atas kulit batang dan akar Cratoxylum arborescens yang telah dikumpul dari Post Brooke, Gua Musang, Kelantan, Malaysia. Cratoxylum arborescens mempunyai lateks berwarna jingga seperti iodin. Lateks jingga daripada kulit batang membuktikan kewujudan sebatian xanthon. Pengekstrakan kulit batang menggunakan pelarut organik diikuti dengan pemisahan ekstensif menggunakan kaedah pemencilan yang biasa menghasilkan tiga sebatian xanthon yang telah dikenal pasti, prunifloron H (1), cochinchinon C (2) dan makluraxanthon (3). Menggunakan prosedur yang sama, antrakuinon, vismiakuinon (4) telah dipencilkan daripada akar pokok. Empat sebatian ini telah dikenal pasti menggunakan teknik RMN 1D dan 2D serta perbandingan dengan data literatur. Hasil kajian ini mencadangkan bahawa sebatian xanthon adalah sebatian utama Cratoxylum.   

 

Kata kunci: cochinchinon C, guttiferae, makluraxanthon, prunifoloron H, vismiakuinon

 

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