جستجوی مقالات مرتبط با کلیدواژه "penicillium italicum" در نشریات گروه "صنایع غذایی"

The usage of plant extraction such as tannins, flavonoids & et. as an alternative to fungicidal effects. The aim of this study was to evaluate of  the antifungal effect of Iranian oak Jaft extract after extraction by different methods on Penicillium italicum and (Penicillium digitatum as an indicator of citrus fruit mold spoilage. molds were expossered by different concentrations of oak Jaft extract. The investigated factors including minimum inhibitory concentration (MIC) (mg/ml), minimum lethal concentration (MFC) (mg/ml) and non-growth diameter (mm) were determined by the methods of tube dilution, surface culture and diffusion in agar well (WD). The results showed that different concentrations of aqueous extract had significantly effect (p<0.05) on the non-growth  diameter of molds. The antifungal effect was significantly (p<0.05)increased in concentrations of 40 and 80 mg/ml aqueous extract. In this research, Fludioxionil 25%  poison as a control group showed a significant difference(p<0.05) in molds growth. In general, the extract of Iranian oak Jaft can be used to control the fungal spoilage of citrus fruits.

The aim of this study was to investigate the phytochemical analysis and antifungal activities of ethanolic extract of Ficus benghalensis on the growth of fungal strains causing rot in orange fruit during storage (Penicillium digitatum and Penicillium italicum). Total phenol content was evaluated according to Folin-Ciocalteu method, total flavonoid content was evaluated according to aluminum chloride colorimetric method, and antioxidant activity was evaluated based on DPPH and ABTS free radical scavenging methods. Various methods (disk diffusion agar, well diffusion agar, minimum inhibitory concentration, and minimum fungicidal concentration) were used to evaluate the antifungal activity of ethanolic extract of F. benghalensis. The amount of phenol and flavonoids in the whole extract was 110.49 mg GAE/g and 62.60 mg QE/g, respectively. Antioxidant activity of ethanolic extract of F. benghalensis based on DPPH and ABTS radical inhibition methods was 48.56 and 57.20 μg/ml, respectively. The results of disk diffusion agar and well diffusion agar tests showed that the antifungal activity of the extract was concentration dependent and the fungal strains of Penicillium digitatum and Penicillium italicum with the lowest and highest diameter of growth inhibition zone, were the most resistant and sensitive species to the extract, respectively. The minimum inhibitory concentrations for the above strains were 16 and 8 mg/ml, respectively, and the minimum fungicidal concentrations were 512 and 128 mg/ml, respectively. According to the results, ethanolic extract of F. benghalensis is an important source of antioxidant and antifungal compounds and can be used to increase the shelf life of food products.

Much chemical fungicides are used to control fungal infections. However, several of these fungicides are detrimental for human health. Today, the use of natural ingredients such as essential oils and extracts plant with the least side effects has been of great interest to researchers. Myrtle (Myrtus communis L.) is a belongs to Myrtaceae  family and a herb widely growing in Iran. The aim of this study was to examine the Myrtle essential oil to control the fungi (Penicillium digitatum and Penicillium italicum) “in vitro”. Evaluation of the antifungal activity of Myrtus communis essential oil was investigated by Kirby-Bauer, well agar, macro broth dilution and minimum fungicidal concentration methods. The results showed that the inhibition zone diameter (Kirby-Bauer method) for the fungal strains of Penicillium digitatum and Penicillium italicum was 10.60 and 9.70 mm, respectively. The results showed that the inhibition zone diameter (well agar method) for the fungal strains of Penicillium digitatum and Penicillium italicum was 12.30 and 10.50 mm, respectively. The minimum inhibitory concentration for Penicillium digitatum and Penicillium italicum was 64 and 128 mg/mL, respectively. The minimum fungicidal concentration was 512 and 512 mg/mL, respectively.