{"title":"Antifungal Activity of <i>Cyperus articulatus</i>, <i>Cyperus rotundus</i> and <i>Lippia alba</i> Essential Oils against <i>Aspergillus flavus</i> Isolated from Peanut Seeds.","authors":"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","doi":"10.3390/jof10080591","DOIUrl":null,"url":null,"abstract":"<p><p><i>Aspergillus flavus</i> 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 <i>Cyperus articulatus</i>, <i>Cyperus rotundus</i> and <i>Lippia alba</i> essential oils against <i>A. flavus</i> isolated from peanut seeds. Essential oils obtained by hydrodistillation of rhizomes of the two <i>Cyperus</i> species and leaves of <i>L. alba</i> were analyzed with GC-DIF and GC-MS. The essential oil yields from <i>C. articulatus</i>, <i>C. rotundus</i> and <i>L. alba</i> 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 <i>A. flavus</i> at concentrations between 100 and 1000 ppm. The <i>L. alba</i> oil was the most effective with total clearance of <i>A. flavus</i> on PDA. For the essential oils of <i>C. rotundus</i> (93.65%) and <i>C. articulatus</i> (78.11%), the highest inhibition rates were obtained with a 1000 ppm dose. Thus, <i>L. alba</i> oil could be used safely as an effective protector of groundnuts against <i>A. flavus</i>.</p>","PeriodicalId":15878,"journal":{"name":"Journal of Fungi","volume":null,"pages":null},"PeriodicalIF":4.2000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11355473/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fungi","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3390/jof10080591","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
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.
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.