Combined effect of chitosan and water activity on growth and fumonisin production by Fusarium verticillioides and Fusarium proliferatum on maize-based media

Ferrochio, Laura Valeria; Cendoya, Eugenia; Zachetti, Vanessa Gimena Lourdes; Farnochi, María Cecilia; Massad, Walter A.; Ramírez, María Cecilia

doi:10.1016/j.ijfoodmicro.2014.05.011

Cited by 12 publications

(9 citation statements)

References 31 publications

(43 reference statements)

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“…Also, there are no other studies in the literature evaluating both the chitosan and a W effect on Fusarium species growth and mycotoxin production on irradiated grains. There was only one study in vitro previously carried out in our laboratory by Ferrochio et al [42], who demonstrated that different chitosan doses from 0.5 to 3.0 mg/L, combined with a W reduction, increased lag phases and decreased mycelial growth rates in F. verticillioides and F. proliferatum strains, when the study was performed in a wheat-based media at 25 °C. The lowest growth rate was obtained at the highest chitosan concentration tested (3 mg/mL) and at the lowest a W (0.93).…”

Section: Discussionmentioning

confidence: 99%

“…In a previous study in vitro, we demonstrated the effect of chitosan on growth of F. verticillioides and F. proliferatum strains, as well as on FB production, under different a W at 25 °C, using a maize-based media. We observed that chitosan was able to significantly reduce growth rate and FB production, with maximum levels of reduction in both parameters obtained at the highest doses used [42]. Ramirez et al [30] suggested that the effect of antifungal compounds on artificial substrate may not accurately represent the real situation on a natural substrate.…”

Section: Introductionmentioning

confidence: 99%

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Preliminary Study on the Use of Chitosan as an Eco-Friendly Alternative to Control Fusarium Growth and Mycotoxin Production on Maize and Wheat

et al. 2019

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The objectives of the present study were to determine the combined effects of chitosan and water activity (aW) on growth and mycotoxin production in situ on the two most important Fusarium species (F. proliferatum and F. verticillioides) present on maize, and on F. graminearum, the main pathogen causing Fusarium head blight on wheat. Results showed that low-molecular-weight chitosan with more than 70% deacetylation at the lowest dose used (0.5 mg/g) was able to reduce deoxynivalenol (DON) and fumonisin (FBs) production on irradiated maize and wheat grains. Growth rates of F. graminearum also decreased at the lowest chitosan dose used (0.5 mg/g), while F. verticillioides and F. proliferatum growth rates were reduced at 0.98 aW at the highest chitosan dose used (2 mg/g). Since mycotoxins are unavoidable contaminants in food and feed chains, their presence needs to be reduced in order to minimize their effects on human and animal health and to diminish the annual market loss through rejected maize and wheat; in this scenario, pre- and post-harvest use of chitosan could be an important alternative.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preliminary Study on the Use of Chitosan as an Eco-Friendly Alternative to Control Fusarium Growth and Mycotoxin Production on Maize and Wheat

et al. 2019

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“…From 7‐day‐old SNA cultures, a 5 mm diameter disk agar was taken and used to inoculate all media . All plates were incubated at 25 °C for 21 days in hermetic containers to maintain a W during the incubation period.…”

Section: Methodsmentioning

confidence: 99%

Effect of in vitro glyphosate on Fusarium spp. growth and disease severity in maize

et al. 2019

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BACKGROUND Glyphosate (GP) is one of the main pesticides used for maize production. Fusarium sp. is a fungal genus with several phytopathogenic species and toxigenic features. In this study, the culturable soil mycota was evaluated using the surface‐spray method. The effect of GP on the growth parameters (growth rate and lag phase) of Fusarium spp. was also tested on solid media conditioned with different water activities. Finally, the GP effect on disease severity caused by Fusarium sp. in maize seedlings was studied. RESULTS The results showed that Fusarium species are frequently isolated from GP‐exposed soils. The GP concentrations tested had a significant effect on F. graminearum, F. verticillioides and F. oxysporum growth parameters on solid media. The pathogenicity tests showed that the disease severity of the maize seedlings significantly increased with increasing GP concentrations. CONCLUSIONS This study showed that Fusarium species are frequently isolated from pesticide‐exposed soils and the GP concentrations tested had a significant effect both on growth parameters and disease severity in maize. This study provides an approach to the effect of GP on Fusarium sp. growth and pathogenicity that reinforces the importance of evaluating all the factors that could affect feed and food production. © 2019 Society of Chemical Industry

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“…The best steady and gradual reduction for water activity was achieved by (5% w/v) chitosan/oil ratio reaching a w value of 0.67 ± 0.02 after the third purification step (3P). One possible explanation for this behavior is that 5% ratio allowed more sites available on chitosan to adsorb water beside the protein adsorption (Ferrochio et al, 2014; Mucha, Wańkowicz, & Balcerzak, 2007; Othman et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Quality evaluation of oil recovered from Euthynnus affinis (Kawakawa) fish using ecofriendly chitosan/oil‐non‐centrifuged sequential purification technique

Hetta

Attallah

Mamdouh

2020

J Food Process Preserv

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Fish oil was extracted from Euthynnus affinis whole fish captured from Red Sea, Egypt using conventional wet rendering method. Ecofriendly chitosan in a non‐centrifuged sequential purification (C/O‐NCSP) technique was employed to purify the resulting crude oil. Three different chitosan/oil ratios were investigated (2, 3, and 5% w/v) and the results revealed that chitosan/oil ratio; 5% w/v was the most efficient in the oil purification procedure with regards to protein, ash, water, heavy metal, and fatty acid content. The purification results obtained suggest that C/O‐NCSP (5% w/v) may be used as a potential commercial filter to get a good quality fish oil. Practical applications Kawakawa (Euthynnus affinis) fish has been known as a very common protein source of Egyptian diet. Kawakawa can contribute significantly in the Egyptian economy because fish farmers, fish processing industry as well as the pharmaceutical companies can benefit from Kawakawa fish as a source of oil for human consumption. Thus, the purification procedures must be chemically and environmentally safe. In the present study, green purification method is proposed for extracted crude oil from whole fish of Kawakawa using high viscosity chitosan polymer. The physical and chemical characteristics of purified crude oil were analyzed and evaluated. The proposed chitosan purification technique offered better quality fish oil for industrial applications. Thus, the outcomes of the present study can provide a replacement to traditional fish oil purification steps due to less chemical treatments during processing that could reduce effluents and this might help with the economic viability and quality of the end product.

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Combined effect of chitosan and water activity on growth and fumonisin production by Fusarium verticillioides and Fusarium proliferatum on maize-based media

Cited by 12 publications

References 31 publications

Preliminary Study on the Use of Chitosan as an Eco-Friendly Alternative to Control Fusarium Growth and Mycotoxin Production on Maize and Wheat

Preliminary Study on the Use of Chitosan as an Eco-Friendly Alternative to Control Fusarium Growth and Mycotoxin Production on Maize and Wheat

Effect of in vitro glyphosate on Fusarium spp. growth and disease severity in maize

Quality evaluation of oil recovered from Euthynnus affinis (Kawakawa) fish using ecofriendly chitosan/oil‐non‐centrifuged sequential purification technique

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