Control of citrus molds using bioactive coatings incorporated with fungal chitosan/plant extracts composite

Tayel, Ahmed A.; Moussa, Shaaban H.; Salem, Mohamed; Mazrou, Khaled E.; El‐Tras, Wael F.

doi:10.1002/jsfa.7223

Cited by 72 publications

(47 citation statements)

References 39 publications

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“…Medicinal plant extracts and their bioactivators are being paid increasing attention by researchers due to their potential to control fungal growth as well as their preservative effects [3,21,25,30,37,38]. Among plant extracts, Ficus hirta Vahl.…”

Section: Discussionmentioning

confidence: 99%

Pinocembrin-7-Glucoside (P7G) Reduced Postharvest Blue Mold of Navel Orange by Suppressing Penicillium italicum Growth

Chen

Wan

2020

Microorganisms

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The current study aimed to examine the in vitro and in vivo antifungal potential of pinocembrin-7-glucoside (P7G). P7G is an antifungal flavanone glycoside isolated from Ficus hirta Vahl. fruit against Penicillium italicum, a causative pathogen of blue mold disease in citrus fruit, and this study elucidates its possible action mechanism. P7G had a prominent mycelial growth inhibitory activity against P. italicum, with an observed half maximal effective concentration, minimum inhibitory concentration and minimum fungicidal concentration of 0.08, 0.2, and 0.8 g/L, respectively. The data from the in vivo test show that P7G significantly reduced blue mold symptoms and disease development of P. italicum in artificially inoculated “Newhall” navel orange. Compared to the control, increases in the cell membrane permeability of P. italicum supernatant and decreases in the intracellular constituent (e.g., soluble protein, reducing sugar, and total lipid) contents of P. italicum mycelia were identified, supporting scanning electron microscopy and transmission electron microscopy observations. Furthermore, a marked decline in both chitin and glucanase contents of P. italicum mycelia treated with P7G was induced by increasing its related degrading enzyme activities, suggesting that the cell wall structure was destroyed. The current study indicated that P7G may be a novel alternative for reducing blue mold by suppressing mycelial growth of P. italicum via a cell membrane/wall-targeting mechanism.

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Section: Discussionmentioning

confidence: 99%

Pinocembrin-7-Glucoside (P7G) Reduced Postharvest Blue Mold of Navel Orange by Suppressing Penicillium italicum Growth

Chen

Wan

2020

Microorganisms

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“…The constitution of EC solution was accomplished as described by Tayel et al A commercial coating solution (Carnauba Tropical®; John Bean Tech. Ltd, Cape Town, South Africa) was utilized as a working base for incorporation of natural agents.…”

Section: Methodsmentioning

confidence: 99%

“…Becaue of their influential antimicrobial activity, fungal Cts types have been repeatedly recommended as powerful protectants from various bacterial pathogens that are transmitted via water, plant and animal foodstuffs …”

Section: Introductionmentioning

confidence: 99%

Bioactive coatings from nano‐biopolymers/plant extract composites for complete protection from mycotoxigenic fungi in dates

et al. 2019

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BACKGROUND: Contamination of date fruit with mycotoxigenic fungi is a hazardous threat. The present study investigated the effectiveness of natural derivatives for controlling this. Chitosan (Cts) was produced from Aspergillus niger mycelia and characterized and then nanochitosan (NCt) particles were synthesized from fungal Cts. Edible-coating films were formulated based on Cts, NCt, pomegranate peel extract (PPE) and their composites and these were evaluated as antifungal materials against mycotoxigenic fungi, Aspergillus flavus, Aspergillus ochraceus and Fusarium moniliforme. RESULTS:The Cts produced had 88.7% deacetylation, a molecular weight of 24.5 kDa and 98% solubility in diluted acetic acid, whereas the particle diameters of synthesized NCts ranged from 35 to 65 nm. The inhibition zone assay emphasized the antifungal effectiveness of the entire coating films. The most effective agent for preparing edible film was the blend of NCt + PPE followed by Cts + PPE based films. The practical application of antifungal films for date decontamination with respect to mycotoxigenic fungi demonstrates that the films were very effective for controlling the entire fungal strain and preventing growth on the fruits. CONCLUSION: The NCt + PPE and Cts + PPE based films were found to be the most effective because they could completely eliminate the growth of any fungal spore on date fruit after 48 h from the coating experiment.

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“…), which are harmful to people, animals and the environment . Therefore, how to prepare a novel environment‐friendly seed coating agent (ESCA) has become an important research topic, which should be resolved in the field of agriculture and environmental conservation . These environment‐friendly seed coating agents, with natural polysaccharide polymer as the main active ingredient, have drawn extensive attention .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, how to prepare a novel environment‐friendly seed coating agent (ESCA) has become an important research topic, which should be resolved in the field of agriculture and environmental conservation . These environment‐friendly seed coating agents, with natural polysaccharide polymer as the main active ingredient, have drawn extensive attention . However, the mechanisms of disease prevention, insect pest control and increasing yield of these environment‐friendly SCAs have not been reported up to now.…”

Section: Introductionmentioning

confidence: 99%

Preparation and mechanism analysis of an environment‐friendly maize seed coating agent

Zeng

Zhao

et al. 2017

J Sci Food Agric

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Control of citrus molds using bioactive coatings incorporated with fungal chitosan/plant extracts composite

Abstract: Natural derivatives could be recommended as powerful antifungal alternatives to protect citrus fruits from postharvest fungal decay.

Cited by 72 publications

References 39 publications

Pinocembrin-7-Glucoside (P7G) Reduced Postharvest Blue Mold of Navel Orange by Suppressing Penicillium italicum Growth

Pinocembrin-7-Glucoside (P7G) Reduced Postharvest Blue Mold of Navel Orange by Suppressing Penicillium italicum Growth

Bioactive coatings from nano‐biopolymers/plant extract composites for complete protection from mycotoxigenic fungi in dates

Preparation and mechanism analysis of an environment‐friendly maize seed coating agent

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