Two isolated crystalline solids from the stem of Entada spiralis Ridl.(akar Sintok) = Pemencilan dua jenis pepejal kristal dari batang pokok Entada spiralis (Akar Sintok)

Harun, Aiza and Mat So'ad, Siti Zaiton and Mohd Hassan, Norazian (2016) Two isolated crystalline solids from the stem of Entada spiralis Ridl.(akar Sintok) = Pemencilan dua jenis pepejal kristal dari batang pokok Entada spiralis (Akar Sintok). Malaysian Journal of Analytical Sciences (MJAS), 20 (2). pp. 238-246. ISSN 1394-2506

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Abstract

Entada spiralis Ridl. (Leguminosae) is a woody climber which locally known as ‘akar sintok’. The isolation and structure determination of two crystalline solids from active methanol fraction of E. spiralis stem bark had been examined. The structure identification of both solids was based on spectroscopic data (1 H and 13C NMR, HMQC, HMBC, DEPT135 and MS) along with comparison with literature data. The results revealed that these two crystalline solid sugars isolated from the most active fraction were known as penta-2-acetoxy-β-D-digitoxopyranosyl-(1→2)-fructofuranosyl-(6→4)-β-D-glucopyranosyl-(1→4)- glucopyranosyl-(1→2)-β-D fructofuranosyl-(6→1)-β-D-glucopyranosyl-(4→1)-acetylglucosamine (1) and β,D-glucopyranosyl(1→2)-β,D-glucopyranosyl)-(1→3)-β,D-xylopyranosyl(1→4)-α,L-rhamnopyranosyl)-(1→3)-β,D- glucopyranosyl(1→3)- β,D-glucopyranoside (2) Thus, this finding can be utilized as a scientific baseline information for further skin disease studies, since both constituents were isolated from moderate antidermatophytic active fraction. Pemencilan dan penentuan struktur dua komponen bersifat kristal dari batang pokok E. spiralis yang juga dikenali sebagai akar sintok telah dijalankan. Eksperimen penentuan struktur berdasarkan data – data spektroskopi menggunakan 1 H, 13C NMR, HMQC, HMBC, DEPT135 dan spektrometer jisim dan juga perbandingan dengan kajian terdahulu. Hasil analisa spektroskopi yang terperinci menunjukkan kedua – dua kristal tersebut dikenali sebagai penta-2-asetoksi-β-D-digitoxopiranosil-(1→2)- fruktofuranosil-(6→4)-β-D-glukopiranosil-(1→4)-glukopiranosil-(1→2)-β-D fruktofuranosil-(6→1)-β-D-glukopiranosil-(4→1)- acetilglukosamina (1) and β,D-glukopiranosil(1→2)-β,D-glukpiranosil)-(1→3)-β,D-xilopiranosil(1→4)-α,L-rhamnopiranosil)- (1→3)-β,D-glukopiranosil(1→3)-β,D-glukopiranosid (2). Penemuan ini boleh dijadikan maklumat asas untuk kajian penyakit kulit kerana kedua-dua komponen ini dipencilkan dari fraksi metanol yang bersifat antiderma.

Item Type:	Article (Journal)
Additional Information:	5652/51033
Uncontrolled Keywords:	Entada spiralis, crystalline saponin, glycosides, isolation Entada spiralis, kristal saponin, glikosid, pemencilan
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry
Depositing User:	Dr. Siti Zaiton Mat So'ad
Date Deposited:	30 Jun 2016 14:17
Last Modified:	05 Apr 2017 16:09
URI:	http://irep.iium.edu.my/id/eprint/51033

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