Publications by authors named "Tiago Nazareth"

Article Synopsis
  • Researchers studied 25 lactic acid bacteria (LAB) from human breast milk for their ability to survive digestion and their protein breakdown capabilities. Seven strains were identified for further testing.* -
  • The tested strains were found to resist digestion effectively, with some showing high proteolytic activity and the ability to inhibit fungal growth, indicating their potential as probiotics.* -
  • Metabolite analysis revealed the presence of beneficial compounds, and one strain exhibited significant protein breakdown, suggesting that these LAB could contribute positively to human health through their bioactive metabolites.*
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Filamentous fungi exhibit remarkable adaptability to diverse substrates and can synthesize a plethora of secondary metabolites. These metabolites, produced in response to environmental stimuli, not only confer selective advantages but also encompass potentially deleterious mycotoxins. Mycotoxins, exemplified by those originating from , , , and species, represent challenging hazards to both human and animal health, thus warranting stringent regulatory control.

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Probiotics are increasingly recognized for their potential in managing bacterial challenges in animal production. This study aimed to evaluate the probiotic potential of and , specifically their bioprotective ability against . In agar inhibition assays, these bacteria supported -inhibition zones, ranging from 2.

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The growing interest in functional foods has fueled the hunt for novel lactic acid bacteria (LAB) found in natural sources such as fermented foods. Thus, the aims of this study were to isolate, identify, characterize, and quantify LAB's antifungal activity and formulate an ingredient for meat product applications. The overlay method performed a logical initial screening by assessing isolated bacteria's antifungal activity in vitro.

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Nowadays, the consumer seeks to replace synthetic preservatives with biopreservation methods, such as sourdough in bread. Lactic acid bacteria (LAB) are used as starter cultures in many food products. In this work, commercial yeast bread and sourdough breads were prepared as controls, as well as sourdough breads with 5L1 lyophilized.

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Traditional sourdough is obtained using a mixture of flour and water stored at room temperature until acidification. Therefore, adding lactic acid bacteria (LAB) can improve the quality and safety of sourdough bread. Faced with this problem, four drying techniques-freeze-drying, spray-drying, low-temperature drying, and drying at low humidity-have been applied.

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The present study describes the manufacture of an antifungal device composed of oriental mustard flour and hydroxyethyl-cellulose (H-OMF) and evaluates its efficacity in inhibiting growth and aflatoxin B1 (AFB) production in almonds. Additionally, it compares the H-OMF with allyl isothiocyanate (AITC) and a freeze-dried extract of yellow mustard flour (YMF-E); such substances were previously described as antifungal. Minimum inhibitory concentration (MIC), Minimum fungicidal concentration (MFC), the H-OMF in vitro antifungal activity, and the residual fungal population, as well as the production of AFB in almonds were determined.

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In this study, the antifungal activity of white mustard bran (MB), a by-product of mustard () milling, and white mustard seed flour (MF) was tested against mycotoxigenic fungi in the agar diffusion method. The results obtained were posteriorly confirmed in a quantitative test, determining the minimum concentration of extract that inhibits the fungal growth (MIC) and the minimum concentration with fungicidal activity (MFC). Since MF demonstrated no antifungal activity, the MB was stored under different temperature conditions and storage time to determine its antifungal stability.

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The goals of this study were to determine the efficacy of allyl isothiocyanate (AITC) against the growth of A. flavus and Aflatoxin B (AFB) production as well as to evaluate changes in the transcriptome profile when colonizing maize. A.

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Fungal spoilage is an important issue for the food industry, leading to food sensory defects, food waste, economic losses and public health concern through the production of mycotoxins. Concomitantly, the search for safer natural products has gained importance since consumers began to look for less processed and chemically treated foods. In this context, the aim of this study was to evaluate the antifungal and antimycotoxigenic effect of seven strains of .

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Ochratoxin A (OTA) is a mycotoxin produced in the secondary metabolism of fungus belonging to the genus and . In this study, the employment of oriental mustard flour (OMF) as an ingredient in a packaged sauce was evaluated for the generation in situ of the antimicrobial compound allyl isothiocyanate (AITC) in order to preserve pita bread contaminated with VTT D-01847, an OTA producer, in an active packaging system. Four different concentrations (8, 16, 33 and 50 mg/g) were tested.

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The aims of this study were to evaluate the antifungal activity of the bioactive compound allyl isothiocyanate (AITC) against (8111 ISPA) aflatoxins (AFs) producer and (D-01847 VTT) ochratoxin A (OTA) producer on corn, barley, and wheat. The experiments were carried out initially in a simulated silo system for laboratory scale composed of glass jars (1 L). Barley and wheat were contaminated with and corn with .

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Background: Brazil produces approximately 63 million tons of corn kernels annually, which is commonly contaminated with fungi and mycotoxins. The objective of this study was to evaluate the efficacy of gaseous allyl isothiocyanate (AITC) to inhibit the growth of Aspergillus parasiticus and Fusarium verticillioides, and mycotoxin production (aflatoxins B , B , G and G , fumonisins B and B ) in corn during 180 days of storage.

Results: AITC at 50 µL L resulted in a significant reduction of the fungal population (P < 0.

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