Antifungal Activity of Essential Oil and Hydrosol Extract of Ballota nigra L. and their Protective Effects Against the Black Rot of Tomatoes

Conclusion: The essential oil and hydrosol extract can be used as a potential source of sustainable eco-friendly botanical fungicides to protect stored tomatoes from pathogens, saprophytic fungi causing bio-deterioration to a variety of food commodities.
Source: Current Nutrition and Food Science - Category: Nutrition Source Type: research

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Publication date: 25 April 2020Source: Food Chemistry, Volume 310Author(s): Jian Ju, Yunfei Xie, Hang Yu, Yahui Guo, Yuliang Cheng, Rongrong Zhang, Weirong YaoAbstractConsumers’ preferences for cleaner label products require the food industry to replace synthetic preservatives with natural substitutes. Therefore, the synergistic inhibitory effect of eugenol and citral (SEC) on Aspergillus niger was explored. On this basis, the antimicrobial sachet containing SEC was developed and its application potential in bread preservation was evaluated. The content of reactive oxygen species (ROS) and malondialdehyde (MDA) showe...
Source: Food Chemistry - Category: Food Science Source Type: research
Publication date: February 2020Source: Phytochemistry Letters, Volume 35Author(s): Gamal A. Mohamed, Sabrin R.M. Ibrahim, Hani Z. AsfourAbstractTwo new diaryl ether derivatives [aspergillethers A (4) and B (5)] and five known metabolites [(22E,24R)-stigmasta-5,7,22-trien-3-β-ol (1), stigmasta-4,6,8(14),22-tetraen-3-one (2), orcinol (3), and butyrolactones I (6) and VI (7)] were separated from the endophytic fungus Aspergillus versicolor (Aspergillaceae) isolated from the roots of Pulicaria crispa Forssk (Asteraceae) growing in Saudi Arabia. The structures of these compounds were determined by various spectral techniqu...
Source: Phytochemistry Letters - Category: Chemistry Source Type: research
Conference abstracts
Source: The Aspergillus Website - updates - Category: Respiratory Medicine Authors: Source Type: news
Conference abstracts
Source: The Aspergillus Website - updates - Category: Respiratory Medicine Authors: Source Type: news
Conference abstracts
Source: The Aspergillus Website - updates - Category: Respiratory Medicine Authors: Source Type: news
jo Antonieta De Cal To compare in vivo the infection process of Monilinia fructicola on nectarines and apples using confocal microscopy it is necessary to transform a pathogenic strain with a construct expressing a fluorescent chromophore such as GFP. Thus, germinated conidia of the pathogen were transformed with Agrobacterium tumefaciens carrying the plasmid pPK2-hphgfp that allowed the expression of a fluorescent Hph-GFP chimera. The transformants were selected according to their resistance to hygromycin B, provided by the constitutive expression of the hph-gfp gene driven by the glyceraldehyde 3P dehydrogenase pro...
Source: Genes - Category: Genetics & Stem Cells Authors: Tags: Article Source Type: research
In this study, we aimed to evaluate the effects of different C/N substrates on RSD and to explore the changes in microbial community structure during RSD treatment. The experimental set up included 10 groups, as follows: CK, without substrates; RSD treatments with alfalfa (Medicago sativa L.)[AL], maize (Zea mays Linn. Sp.) straw [MS], and rice (Oryza sativa L.) straw [RS], with three levels of addition (0.5% [L], 2% [M], and 5% [H]), yielding ALL, ALM, ALH, MSL, MSM, MSH, RSL, RSM, and RSH groups. Compared with CK, RSD treatments significantly increased the content of NH4+-N, and effectively eliminated the accumulated NO3...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Aflatoxins are wide-spread harmful carcinogenic secondary metabolites produced by Aspergillus species, which cause serious feed and food contaminations and affect farm animals deleteriously with acute or chronic manifestations of mycotoxicoses. On farm, both pre-harvest and post-harvest strategies are applied to minimize the risk of aflatoxin contaminations in feeds. The great economic losses attributable to mycotoxin contaminations have initiated a plethora of research projects to develop new, effective technologies to prevent the highly toxic effects of these secondary metabolites on domestic animals and also to block th...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
There are only few drugs available to treat fungal infections, and the lack of new antifungals, along with the emergence of drug-resistant strains, results in millions of deaths/year. An unconventional approach to fight microbial infection is to exploit nutritional vulnerabilities of microorganism metabolism. The metal gallium can disrupt iron metabolism in bacteria and cancer cells, but it has not been tested against fungal pathogens such as Aspergillus and Candida. Here, we investigate in vitro activity of gallium nitrate III [Ga(NO3)3] against these human pathogens, to reveal the gallium mechanism of action and understa...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
AbstractAspergillus nomius is a potent producer of aflatoxins B and G and is one of the most common species of fungi found in Brazil nuts. Temperature is considered a major abiotic factor that influences fungal colonization and aflatoxin production in nuts during pre- and post-harvest. Therefore, assessment of the response of aflatoxigenic species to different temperatures is important to add information about the understanding of aflatoxin production byAspergillus nomius and may help in the development of new strategies to prevent aflatoxin contamination. The aim of this study was to evaluate the effect of temperature (25...
Source: Mycotoxin Research - Category: Toxicology Source Type: research
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