Malaysian Journal of Analytical Sciences Vol 19 No 5 (2015): 930 - 934

 

 

 

CHEMICAL CONSTITUENTS OF THE LICHENS Cladonia multiformis

AND Cryptothecia sp.

 

(Sebatian kimia liken Cladonia multiformis dan Cryptothecia sp.)

 

Hasliza Yusof¹, Husna Azahar¹, Laily B. Din¹*, Nazlina Ibrahim²

 

¹School of Chemical Sciences and Food Technology

²School of Biosciences and Biotechnology

Faculty of Science and Technology,

Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia

 

*Corresponding author: lbdin@ukm.edu.my

 

 

Received: 6 May 2015; Accepted: 18 August 2015

 

 

Abstract

Two depsides (atranorin 1 and evernic acid 4), an aromatic compound (methyl b-orcinolcarboxylate 2) and one cleavage product of depside (everninic acid 3) were isolated from two lichens, Cladonia multiformis (1 and 2) and Cryptothecia sp. (3 and 4). The identification of the four compounds was carried out by comparison of the recorded NMR data with that of the reported. Compounds 1 and 4 showed antibacterial activity against Bacillus subtilis and Enterobacter aerogenes.

 

Keywords: lichen, Cladonia, Cryptothecia, antibacterial activity

 

Abstrak

Dua depsida (atranorin 1 dan asid evernik 4), satu sebatian aromatik (metil β-orcinolkarboksilat 2) dan satu hasil pemutusan depsida 4 (asid everninik 3) telah dipencilkan daripada dua liken, Cladonia multiformis (1 dan 2) dan Cryptothecia sp. (3 dan 4). Pengecaman keempat empat sebatian dilakukan secara membandingkan data RMN yang direkodkan dengan data yang dilaporkan. Sebatian 1 dan 4 telah menunjukkan aktiviti antibakteria terhadap Bacillus subtilis dan Enterobacter aerogenes.

 

Kata kunci: liken, Cladonia, Cryptothecia, aktiviti antibakteria

 

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