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The Antifungal Activity of Cinnamon-Litsea Combined Essential Oil against Dominant Fungal Strains of Moldy Peanut Kernels.


ABSTRACT: The antifungal activity of cinnamon (Cinnamomum cassia Presl), litsea [Litsea cubeba (Lour.) Pers.], clove (Syzygium aromaticum L.), thyme (Thymus mongolicus Ronn.) and citronella (Cymbopogon winterianus Jowitt) essential oils (EOs) against the dominant fungi isolated from moldy peanuts was investigated in this research. Firstly, strain YQM was isolated and identified by morphological characterization and 18S rRNA gene sequence analysis to be Aspergillus flavus (A. flavus). Next, antifungal effects of single or mixed EOs on strain YQM were evaluated by the inhibition zone test. The cinnamon-litsea combined essential oil (CLCEO, Vcinnamon oil:Vlitsea oil = 3:5) displayed the best antifungal effect on strain YQM. The chemical composition of CLCEO was identified and quantified by gas chromatograph-mass spectrometry (GC-MS), and results revealed that the major components of CLCEO were cinnamaldehyde and citral. Finally, the effect of EOs on the microstructure of strain YQM mycelia was observed under scanning electron microscope (SEM). The mycelia exposed to cinnamon essential oil (CEO) and litsea essential oil (LEO) were partly deformed and collapsed, while the mycelia treated with CLCEO were seriously damaged and the deformation phenomena such as shrinking, shriveling and sinking occurred. Therefore, CLCEO has great potential for using as anti-mildew agents during peanut storage.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC9180872 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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The Antifungal Activity of Cinnamon-Litsea Combined Essential Oil against Dominant Fungal Strains of Moldy Peanut Kernels.

Liu Yijun Y   Wang Ruolan R   Zhao Lingli L   Huo Shanshan S   Liu Shichang S   Zhang Hanxiao H   Tani Akio A   Lv Haoxin H  

Foods (Basel, Switzerland) 20220528 11


The antifungal activity of cinnamon (<i>Cinnamomum cassia</i> Presl), litsea [<i>Litsea cubeba</i> (Lour.) Pers.], clove (<i>Syzygium aromaticum</i> L.), thyme (<i>Thymus mongolicus</i> Ronn.) and citronella (<i>Cymbopogon winterianus</i> Jowitt) essential oils (EOs) against the dominant fungi isolated from moldy peanuts was investigated in this research. Firstly, strain YQM was isolated and identified by morphological characterization and 18S rRNA gene sequence analysis to be <i>Aspergillus fla  ...[more]

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