Inhibitory Effect of GRAS Essential Oils and Plant Extracts on the Growth of and Strains.

The effect of essential oils (obtained using hydrodistillation) and plant extracts (ethanolic, aqueous, and hexanic extractions) of 10 different plants cultivated in Brazil were tested using the diffusion agar method, with the objective of evaluating the inhibitory effect of the oils and extracts on the mycelial growth of NRRL 3174 and RC 2054 (UNRC). Of the 40 essential oils and plant extracts analyzed, oregano essential oil and plant extract, rosemary essential oil, and the clove ethanolic extract were the best choice to obtain the growth parameters (radial growth rates (mm day) and lag phase (h)) due the good results presented and the volume of oil/extract obtained. Comparing all the essential oils and plant extracts that were tested for growth parameters, the best results were obtained for the clove ethanolic extract for both strains assayed.

Lithothamnium calcareum (Pallas) Areschoug seaweed adsorbs aflatoxin B in vitro and improves broiler chicken's performance.

This study aimed to evaluate the aflatoxin B (AFB) adsorption capacity of the seaweed Lithothamnium calcareum in vitro and to prevent aflatoxicosis in broiler chickens. In vitro adsorption assays were performed at a single AFB concentration (1 μg/mL) and four seaweed concentrations (0.50, 1, 1.

In Vitro Activity of Neem () Oil on Growth and Ochratoxin A Production by Isolates.

is a saprobic filamentous fungus, food spoiling fungus and a producer of ochratoxin A (OTA) mycotoxin. In this study, the in vitro antifungal activity of neem oil (0.12% p/p of azadirachtin) was evaluated against the growth of six strains of and the production of OTA.