Octanal incorporated in postharvest wax of Satsuma mandarin fruit as a botanical fungicide against Penicillium digitatum

Tao, Nengguo; Fan, Feng; Jia, Lei; Zhang, Miaoling

doi:10.1016/j.foodcont.2014.04.025

Cited by 42 publications

(45 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Octanal, another component of citrus essentials oils, has also been recently evaluated as active ingredient of commercial waxes for postharvest coating of citrus fruit. Tao, et al [113] determined in in vitro tests that the minimum fungicidal concentration (MFC) of this compound against P. digitatum was 1000 µL·L −1…”

Section: Citrus Coatings Formulated With Essential Oilsmentioning

confidence: 99%

Antifungal Edible Coatings for Fresh Citrus Fruit: A Review

2015

View full text Add to dashboard Cite

According to their origin, major postharvest losses of citrus fruit are caused by weight loss, fungal diseases, physiological disorders, and quarantine pests. Cold storage and postharvest treatments with conventional chemical fungicides, synthetic waxes, or combinations of them are commonly used to minimize postharvest losses. However, the repeated application of these treatments has led to important problems such as health and environmental issues associated with fungicide residues or waxes containing ammoniacal compounds, or the proliferation of resistant pathogenic fungal strains. There is, therefore, an increasing need to find non-polluting alternatives to be used as part of integrated disease management (IDM) programs for preservation of fresh citrus fruit. Among them, the development of novel natural edible films and coatings with antimicrobial properties is a technological challenge for the industry and a very active research field worldwide. Chitosan and other edible coatings formulated by adding antifungal agents to composite emulsions based on polysaccharides or proteins and lipids are reviewed in this article. The most important antifungal ingredients are selected for their ability to control major citrus postharvest diseases like green and blue molds, caused by Penicillium digitatum and Penicillium italicum, respectively, and include low-toxicity or natural chemicals such as food additives, generally recognized as safe (GRAS) compounds, plant extracts, or essential oils, and biological control agents such as some antagonistic strains of yeasts or bacteria. OPEN ACCESSCoatings 2015, 5 963

show abstract

Section: Citrus Coatings Formulated With Essential Oilsmentioning

confidence: 99%

Antifungal Edible Coatings for Fresh Citrus Fruit: A Review

2015

View full text Add to dashboard Cite

show abstract

“…The balance among the activities of SOD, POD, and CAT in cells was crucial for determining the steady-state level of O 2 -and H 2 O 2 , whereas H 2 O 2 is predominantly broken down by POD and CAT [29,53]. POD is involved in lignification of host plant cells and considered as key enzymes related to defense reaction against pathogen infections [54].…”

Section: Discussionmentioning

confidence: 99%

“…Weight loss percentage of tomato fruits was determined by weighting the samples at specific time intervals compared to initial weight and reported as % weight loss. Vitamin C (ascorbic acid) content was determined by 2, 6-dichlorophenolindor -henol titration [29]. Total soluble solid (TSS) content was determined using a digital refractometer (Pocket PAL-1, Japan) equipped with 6 mm diameter flat probe.…”

Section: Fruit Quality Parametersmentioning

confidence: 99%

Use of Nonanal-wax as Postharvest Fungicide of Tomato against <i>Botrytis cinerea</i>

Zhang¹,

Zeng²,

Sun³

et al. 2017

JFNR

View full text Add to dashboard Cite

The antifungal activity of nonanal against Botrytis cinerea, one of the most important postharvest diseases of tomato gray mold, was tested by in vitro and in vivo experiments. Results of in vivo tests demonstrated that wax + nonanal treatment significantly decreased the incidence of gray mold during the entire storage period. After 8 d of storage, the disease incidences in Wax + nonanal (1×, 4× or 10× MFC)-treated fruits were 46.7%, 56.7%, 73.3%, respectively, in contrast to 100% of the control fruits. Loss of membrane integrity was examined and quantified under 10×MFC nonanal condition by the method of propidium iodide fluorescent staining. Wax + nonanal (10×MFC) treatment remarkably increased antioxidant enzyme activities, such as catalase (CAT), superoxidase dismutase (SOD), peroxidase (POD) and phenylalanine ammonia lyase (PAL). Meanwhile, this treatment (10×MFC) evidently exhibited a delayed decline in antioxidant enzyme activities. Furthermore, nonanal treatment retained the fruit quality of tomatoes because it reduced the coloration index and weight loss and retained fruit firmness. No significant differences were found between the pH, Firmness and total soluble solid (TSS) content for all treatment under the same storage time. Our results suggest that nonanal can be considered as a good alternative to conventional fungicides in controlling the decay of tomato fruits.

show abstract

“…The permeability and integrity of cell plasma membrane serve important functions in maintaining fungal viability (Paul et al 2011;Tao et al 2014a). Previous studies have shown that the lipophilicity of essential oils enables them to preferentially partition from an aqueous phase into membrane structures of the fungi, resulting in membrane expansion, increased membrane fluidity and permeability, disturbance of membrane-embedded proteins, inhibition of respiration, alteration of ion transport processes in fungi and induced the leakage of other cellular contents (Tao et al 2014b;Tyagi and Malik 2010;Zhou et al 2014). In the current research, the results of PI staining and microscopy showed that the membrane integrity of P. digitatum spores obviously declined after citronellal treatment (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The effects of citronellal on mycelial growth of P. digitatum were evaluated following the method of Tao et al (2014b). The final concentrations of citronellal in the culture media were 0.…”

Section: Effect Of Citronellal On Mycelial Growthmentioning

confidence: 99%

Plasma membrane damage contributes to antifungal activity of citronellal against Penicillium digitatum

Ouyang

Tao

2016

J Food Sci Technol

Self Cite

View full text Add to dashboard Cite

The antifungal activity of citronellal, a typical terpenoid of plant essential oils, against Penicllium digitatum and the possible action mode involved were investigated. Results showed that the mycelial growth and spores' germination of P. digitatum were inhibited by citronellal in a dose-dependent manner. The minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) were determined to be 1.60 lL/mL and 3.20 lL/mL, respectively. It was found that the plasma membrane of citronellal-treated P. digitatum spores was damaged, as confirmed by the propidium iodide stain results, as well as a higher extracellular conductivity and release of cell constituents in citronellal-treated samples than those of control samples. Moreover, in vivo test results demonstrated that wax ? citronellal (WC; 10 9 MFC) treatment effectively reduced the incidence of green mold after 5 days of storage at 25 ± 2°C. These findings suggested that the plasma damage mechanism contributed to the antifungal activity of citronellal against P. digitatum. In addition, citronellal was suggested to be a potential alternative to fungicidal agents in controlling green mold of citrus fruit.

show abstract

Octanal incorporated in postharvest wax of Satsuma mandarin fruit as a botanical fungicide against Penicillium digitatum

Cited by 42 publications

References 38 publications

Antifungal Edible Coatings for Fresh Citrus Fruit: A Review

Antifungal Edible Coatings for Fresh Citrus Fruit: A Review

Use of Nonanal-wax as Postharvest Fungicide of Tomato against <i>Botrytis cinerea</i>

Plasma membrane damage contributes to antifungal activity of citronellal against Penicillium digitatum

Contact Info

Product

Resources

About