Antifungal effect of phenolic extract of fermented rice bran with <i>Rhizopus oryzae</i> and its potential use in loaf bread shelf life extension

Denardi-Souza, Taiana; Luz, Carlos; Mañes, Jordí; Badiale‐Furlong, Eliana; Meca, Giuseppe

doi:10.1002/jsfa.9035

Cited by 40 publications

(20 citation statements)

References 30 publications

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“…Although copper performed slightly better, G6 treatments have several significant advantages. Gallates of short carbon side chains, such as G6, are considered to be fairly safe, displaying antimicrobial action against several pathogenic microorganisms, as well as antitumoral activity (Aldulaimi et al, 2017; Chew, Mahadi, Wong, & Goh, 2018; Denardi‐Souza, Luz, Manes, Badiale‐Furlong, & Meca, 2018; Kim, Par, Choi, Kwak, & Kim, 2019; Peredo‐Silva et al, 2017; Silva et al, 2013). Gallates are also used as food supplements and cosmetic ingredients due to their antioxidant activity (Octyl‐gallate‐as‐food‐additive, 2015; Safety‐assessment‐of‐Propyl‐Gallate, 2007).…”

Section: Discussionmentioning

confidence: 99%

Hexyl gallate for the control of citrus canker caused by Xanthomonas citri subsp citri

et al. 2020

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Brazil is the biggest producer of sweet oranges and the main exporter of concentrated orange juice in the world. Among the diseases that affect citriculture, Asiatic citrus canker, caused by the bacterial pathogen Xanthomonas citri, represents one of the most significant threats. The current Brazilian legislation regulating the control of citrus canker no longer requires the eradication of affected trees in states where the incidence of the disease is high. Instead, control involves disease control measures, including periodic preventative spraying of copper compounds. The long‐term use of copper for plant disease control has raised concerns about environmental accumulation and toxicity, as well as the selective pressure it exerts leading to the emergence of copper‐resistant X. citri strains. Here, we evaluated hexyl gallate (G6) as an alternative to copper compounds for citrus plant protection. G6 was able to protect citrus nursery trees against X. citri infection. Thirty days after inoculation, the trees treated with G6 developed 0.5 lesions/cm2 leaf area compared with the 2.84 lesions/cm2 observed in the untreated control trees. Also, G6 did not interfere with germination and root development of tomato, lettuce, and arugula, which is consistent with our previous data showing that G6 is safe for tissue culture cell lines. Membrane permeability tests showed that the primary target of G6 is the bacterial outer membrane. Finally, we could not isolate spontaneous X. citri mutants resistant to G6 nor induce resistance to G6 after long‐term exposures to increasing concentrations of the compound, which suggests that G6 may have multiple cellular targets. This study demonstrated that G6 is a promising candidate for the development and use in citrus canker management.

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Section: Discussionmentioning

confidence: 99%

Hexyl gallate for the control of citrus canker caused by Xanthomonas citri subsp citri

et al. 2020

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“…Targeted MS/MS experiments were carried out using collision energy 10, 20, and 40 eV values. Integration and data elaboration were managed using Masshunter Qualitative Analysis Software B.08.00 (Denardi‐Souza, Luz, Mañes, Badiale‐Furlong, & Meca, ).…”

Section: Methodsmentioning

confidence: 99%

Antifungal activity and shelf life extension of loaf bread produced with sourdough fermented by Lactobacillus strains

Luz

Dopazo

Mañes

et al. 2019

J Food Process Preserv

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The objective of this study was to evaluate a water‐soluble extract from sourdoughs fermented with the lactic acid bacteria (LAB) for antifungal reflect on loaf bread. The extracts produced by Lactobacillus plantarum CECT 749 and L. bulgaricus CECT 4005 were effective against strains of Fusarium spp., Penicillium spp., and Aspergillus spp., with minimum inhibitory concentration ranging from 1.6 to 200 mg/ml and minimum fungicidal concentration from 1.6 to 400 mg/ml. LC‐ESI‐MS‐TOF was used to analyze the antimicrobial compounds. Several antimicrobial phenolic acids were found. Fermented sourdoughs used for the production of loaf bread produced a reduction of fungal growth in relation on the sourdough control and improved to the shelf life of 1 to 2 days compared to control bread with 0.2% calcium propionate. Therefore, LAB are an alternative to synthetic compounds for decreasing fungal contaminants and prolonging the shelf life of food. Practical applications This study presents the importance of sourdough fermented by Lactobacillus plantarum spp. and the production during the fermentation of bioactive metabolites with antifungal activity. When applied in the preparation of bread, it is able to increase the useful life of the bread and its efficiency can be compared to that of calcium propionate. It is thus an alternative to synthetic compounds for decreasing fungal contaminants and prolonging the shelf life of food.

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“…Targeted MS/MS experiments were carried out using collision energy of 10, 20 and 40 eV. Integration and data elaboration were realized using Masshunter Qualitative Analysis Software B.08.00 [65].…”

Section: Extraction and Identification Of Phenolic Acids By Lc-esi-qtmentioning

confidence: 99%

Potential Application of Lactic Acid Bacteria to Reduce Aflatoxin B1 and Fumonisin B1 Occurrence on Corn Kernels and Corn Ears

Nazareth

Luz

Torrijos

et al. 2019

Toxins

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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 Lactobacillus plantarum. Lactic acid bacteria (LAB) were grown on Man Rogosa Sharpe (MRS) broth at 37 °C in anaerobic conditions. After that, the cell-free supernatant (CFS) were recovered to determine its antifungal activity by halo diffusion agar test. In addition, minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) was determined for each L. plantarum CFS by 96-well microplates method. Additionally, CFS was used as a natural biocontrol agent on corn kernels and corn ears contaminated with Aspergillus flavus and Fusarium verticillioides, respectively. The L. plantarum CECT 749 CFS showed the highest antifungal effect against all essayed strains. Moreover, the employment of this CFS in food reduced the mycotoxin production at a percentage ranging from 73.7 to 99.7%. These results suggest that the L. plantarum CECT 749 CFS could be promising for the biocontrol of corn.

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Antifungal effect of phenolic extract of fermented rice bran with Rhizopus oryzae and its potential use in loaf bread shelf life extension

Abstract: The phenolic extract assessed in this study could be considered as an alternative for inhibiting toxigenic fungi and as a substitute for synthetic compounds in food preservation. © 2018 Society of Chemical Industry.

Cited by 40 publications

References 30 publications

Hexyl gallate for the control of citrus canker caused by Xanthomonas citri subsp citri

Hexyl gallate for the control of citrus canker caused by Xanthomonas citri subsp citri

Antifungal activity and shelf life extension of loaf bread produced with sourdough fermented by Lactobacillus strains

Potential Application of Lactic Acid Bacteria to Reduce Aflatoxin B1 and Fumonisin B1 Occurrence on Corn Kernels and Corn Ears

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