publication . Article . 2005

Growth inhibition and morphological alterations of Aspergillus niger by essential oils from Thymus eriocalyx and Thymus x-porlock

Iraj Rasooli; Mohammad Bagher Rezaei; Abdolamir Allameh;
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  • Published: 01 Nov 2005 Journal: Food Control, volume 17, pages 359-364 (issn: 0956-7135, Copyright policy)
  • Publisher: Elsevier BV
Abstract
The antifungal effects of essential oils from Thymus eriocalyx and Thymus x-porlock were studied with special reference to the mechanism of inhibition of Aspergillus niger growth at ultrastructural level. Minimal inhibitory (MIC), minimal fungicidal (MFC) concentrations, and fungicidal kinetics of the oils were determined. Transmission electron microscopy (TEM) of A. niger exposed to MIC levels of the oils showed irreversible damage to cell wall, cell membrane and cellular organelles. The oils analyzed by GC and GC/MS led to identification of 18 and 19 components in T. eriocalyx and T. x-porlock oils respectively. The results are compared and discussed with the ...
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free text keywords: Biotechnology, Food Science, Biochemistry, Antifungal, medicine.drug_class, medicine, Ultrastructure, Aspergillus niger, biology.organism_classification, biology, Growth inhibition, chemistry.chemical_compound, chemistry, Preservative, Cell membrane, medicine.anatomical_structure, Cell wall, Organelle
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