Antifungal Activity of Cyperus articulatus, Cyperus rotundus and Lippia alba Essential Oils against Aspergillus flavus Isolated from Peanut Seeds.

IF 4.2 2区生物学 Q2 MICROBIOLOGY Journal of Fungi Pub Date : 2024-08-21 DOI:10.3390/jof10080591

Safietou Sabaly, Yoro Tine, Alioune Diallo, Abdoulaye Faye, Mouhamed Cisse, Abdoulaye Ndiaye, Cebastiana Sambou, Cheikhouna Gaye, Alassane Wele, Julien Paolini, Jean Costa, Aboubacry Kane, Saliou Ngom

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Abstract

Aspergillus flavus is a cosmopolitan saprophytic fungus that infests several foodstuffs and is associated with adverse effects in humans. In Senegal, significant losses of groundnut production are mainly due to contamination caused by this species. This study evaluated in vitro antifungal activities of Cyperus articulatus, Cyperus rotundus and Lippia alba essential oils against A. flavus isolated from peanut seeds. Essential oils obtained by hydrodistillation of rhizomes of the two Cyperus species and leaves of L. alba were analyzed with GC-DIF and GC-MS. The essential oil yields from C. articulatus, C. rotundus and L. alba were 1.1%, 1.3% and 1.7%, respectively. These three samples had the following chemotypes: (i) mustakone (21.4%)/eudesma-4(15)-7-dien-1β-ol (8.8%)/caryophyllene oxide (5.9%), (ii) caryophyllene oxide (25.2%)/humulene epoxyde 2 (35.0%) and (iii) geranial (46.6%)/neral (34.6%). The three oils tested inhibited the growth of A. flavus at concentrations between 100 and 1000 ppm. The L. alba oil was the most effective with total clearance of A. flavus on PDA. For the essential oils of C. rotundus (93.65%) and C. articulatus (78.11%), the highest inhibition rates were obtained with a 1000 ppm dose. Thus, L. alba oil could be used safely as an effective protector of groundnuts against A. flavus.

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香柏、香附和白花梨精油对从花生种子中分离出的黄曲霉的抗真菌活性

黄曲霉菌（Aspergillus flavus）是一种世界性隐性真菌，可侵染多种食品，并对人体产生不良影响。在塞内加尔，花生生产的重大损失主要是由这种真菌造成的。这项研究评估了香附、腐叶香附和白花栗精油对从花生种子中分离出的黄曲霉菌的体外抗真菌活性。采用 GC-DIF 和 GC-MS 分析了通过水蒸馏法获得的两种香附根茎和白叶李的精油。C. articulatus、C. rotundus 和 L. alba 的精油产量分别为 1.1%、1.3% 和 1.7%。这三种样本的化学类型如下：(i) 芥子酮（21.4%）/桉叶-4(15)-7-二烯-1β-醇（8.8%）/氧化香叶烯（5.9%），(ii) 氧化香叶烯（25.2%）/环氧胡柚烯 2（35.0%）和(iii) 香叶醇（46.6%）/香叶（34.6%）。在 100 至 1000 ppm 的浓度范围内，测试的三种精油都能抑制黄曲霉的生长。L. alba 精油对完全清除 PDA 上的黄曲霉最为有效。对于 C. rotundus（93.65%）和 C. articulatus（78.11%）精油，1000 ppm 剂量的抑制率最高。因此，L. alba 精油可以作为一种有效的保护花生免受黄曲霉侵害的安全用油。

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来源期刊

Journal of Fungi Medicine-Microbiology (medical)

CiteScore

6.70

自引率

14.90%

发文量

1151

审稿时长

11 weeks

期刊介绍： Journal of Fungi (ISSN 2309-608X) is an international, peer-reviewed scientific open access journal that provides an advanced forum for studies related to pathogenic fungi, fungal biology, and all other aspects of fungal research. The journal publishes reviews, regular research papers, and communications in quarterly issues. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on paper length. Full experimental details must be provided so that the results can be reproduced.