Chemical Components of Fungus Comb from Indo-Malayan Termite <i>Macrotermes gilvus</i> Hagen Mound and Its Bioactivity against Wood-Staining Fungi
Recently, the architectural and physical properties of the fungus comb from subterranean termite <i>Macrotermes gilvus</i> Hagen (Isoptera: Termitidae) mounds had been studied and it is important to determine its chemical profile as well as to evaluate its anti-staining-fungi activity. T...
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| Autores principales: | , , , , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/f403970f836a42539192acf6beebd6dc |
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| Sumario: | Recently, the architectural and physical properties of the fungus comb from subterranean termite <i>Macrotermes gilvus</i> Hagen (Isoptera: Termitidae) mounds had been studied and it is important to determine its chemical profile as well as to evaluate its anti-staining-fungi activity. The results showed that fungus comb of <i>M. gilvus</i> has a high crude ash (30.57%), fiber (25.46%), starch (7.76%), protein (5.80%, 5.53% amino acid), acid-insoluble ash (3.45%), and fat (0.73%). It also contained phenol hydroquinone, steroids, terpenoids, and saponin compounds. Seventeen amino acids were identified via high-performance liquid chromatography analysis, of which arginine, leucine, glutamate, and aspartic acid were the majority. According to gas chromatography-mass spectrometry analysis, the <i>n</i>-hexane extract consists of several types of fatty acid derivatives. Meanwhile, the ethyl acetate (EtOAc) extracts were primarily phenol groups with 1,2,3-propanetriol (glycerol) at the highest relative concentration. Four fungus-comb extracts (<i>n</i>-hexane, EtOAc, MeOH, and water) inhibited the <i>Aspergillus foetidus</i> fungus, with inhibition rates ranging from 24.17% to 100% and EtOAc extract as the most active extract. It appears that EtOAc extracts from the <i>M. gilvus</i> fungus comb can be considered an active ingredient source of novel organic fungicide in preventing wood-staining fungi attacks on susceptible wood. |
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