A new strain of Metschnikowia fructicola for postharvest control of Penicillium expansum and patulin accumulation on four cultivars of apple

Spadaro, D.; Lorè, A.; Garibaldi, A.; Gullino, M. L.

doi:10.1016/j.postharvbio.2012.08.001

Cited by 75 publications

(46 citation statements)

References 57 publications

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“…Pichia caribbica, an effective antagonist, can not only reduce patulin content in medium but also in apple fruit (9). Metschnikowia pulcherrima also shows the ability to remove patulin both in vitro and in apples (33,38). R. kratochvilovae can break down patulin in a model system emulating decayed apples, as well as in rotted apple tissue caused by P. expansum (11,21).…”

Section: Discussionmentioning

confidence: 99%

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Effect of the Yeast Rhodosporidium paludigenum on Postharvest Decay and Patulin Accumulation in Apples and Pears

Zhu

Guo

et al. 2015

Journal of Food Protection

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The effect of a strain of marine yeast Rhodosporidium paludigenum on postharvest blue mold and patulin accumulation in apples and pears stored at 23°C was evaluated. The occurrence and severity of apple and pear decay caused by Penicillium expansum were significantly inhibited by R. paludigenum. However, the application of the yeast at a high concentration (10(8) cells per ml) enhanced patulin accumulation after 7 days of storage; the amount of patulin increased 24.2 times and 12.6 times compared to the controls in infected apples and pears, respectively. However, R. paludigenum reduced the patulin concentration in the growth medium by both biological degradation and physical adsorption. Optimal in vitro patulin reduction was observed at 30°C and at pH 6.0. R. paludigenum incubated at 28°C was tolerant to patulin at concentrations up to 100 mg/liter. In conclusion, R. paludigenum was able to control postharvest decay in apples and pears and to remove patulin in vitro effectively. However, because the yeast induced patulin accumulation in fruit, the assessment of mycotoxin content after biological treatments in postharvest decay control is important. R. paludigenum may also be a promising source of gene(s) and enzyme(s) for patulin degradation and may be a tool to decrease patulin contamination in commercial fruit-derived products.

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Section: Discussionmentioning

confidence: 99%

“…In addition, lactic acid bacteria reduce patulin contamination by biological degradation (17) as well as by physical adsorption (18). However, only a few studies have assessed the efficacy of microorganisms against patulin accumulation in fruit (9,11,21,27,38).…”

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confidence: 99%

Effect of the Yeast Rhodosporidium paludigenum on Postharvest Decay and Patulin Accumulation in Apples and Pears

Zhu

Guo

et al. 2015

Journal of Food Protection

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“…Since most fruits are stored and shipped at low temperatures (0-5°C) to extend their shelf life, cold stress is a common adversity to which yeast antagonists used to manage postharvest diseases would be exposed. Therefore, it is logical to try and identify biocontrol agents that are adapted to grow at low temperatures in order to maintain biocontrol activity, in cold storage (Spadaro et al 2013;Spotts et al 2002). Several reports have described attempts to obtain cold-adapted yeasts from the Antarctic, polar seas, and other cold places in order to screen them for biocontrol activity (Dunlap et al 2007;Hernández-Montiel et al 2010;Vero et al 2013).…”

Section: Discussionmentioning

confidence: 99%

The ability of a cold-adapted Rhodotorula mucilaginosa strain from Tibet to control blue mold in pear fruit

Yan

Wilson³

et al. 2015

Antonie van Leeuwenhoek

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Cold-adapted yeasts were isolated from soil samples collected in Tibet and evaluated as potential biocontrol agents against blue mold (Penicillium expansum) of pear fruit in cold storage. YC1, an isolate identified as Rhodotorula mucilaginosa, was found to exhibit the greatest biocontrol activity among the different isolates that were screened. A washed cell suspension of YC1 exhibited the best biocontrol activity among three different preparations that were used in the current study. A concentration of 10(8) cells/ml reduced the incidence of decay to 35 %, compared to the control where decay incidence was 100 %. A higher intracellular level of trehalose and a higher proportion of polyunsaturated acids present in YC1, was associated with increased the tolerance of this strain to low temperatures, relative to the other strains that were evaluated. The increased tolerance to low temperature allowed the YC1 strain of yeast to more effectively compete for nutrients and space in wounded pear fruit that had been inoculated with spores of P. expansum and placed in cold storage. The present study demonstrated the ability to select cold-adapted yeasts from cold climates and use them as biocontrol agents of postharvest diseases of fruit placed in cold storage.

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“…Lutz et al (2013) indicated that there are differences between different strains' inhibiting effect and different pathogens. The germination inhibition percentage of BA3 is higher than most yeast strains in Lutz et al (2013) and Spadaro et al (2013). Several biocontrol mechanisms have been suggested as being effective against postharvest fruit diseases (Jamalizadeh et al, 2011), LC, liquid cultures; AC, autoclaved cultures; CL, Culture filtrates; WCS, 1 × 10 8 CFU/ml washed cell suspension; CK, sterile distilled water.…”

Section: Resultsmentioning

confidence: 99%

Biocontrol of Gray Mold Decay in Pear by Bacillus amyloliquefaciens Strain BA3 and its Effect on Postharvest Quality Parameters

Zhao

et al. 2016

Polish Journal of Microbiology

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A b s t r a c tThe economic losses caused by postharvest fruits diseases have attracted global attention. Traditional chemical fungicide could not meet the need of humans. In recent years, microbial agent which has begun to take the place of chemical fungicide comes into people's vision. The aim of this paper was to investigate the potential of Bacillus amyloliquefaciens strain BA3 for its biocontrol capability on gray mold decay of pears and its effect on postharvest quality of pears. Compared with other treatments, the inhibition effect on gray mold of washed cell suspension of B. amyloliquefaciens was the best. Consequently it was utilized in subsequent experiments. Spore germination and germ tube length of Botrytis cinerea was 18.72% and 12.85 µm treated with BA3, while the control group was 62.88% and 30.44 µm. We confirmed that increase of the concentration of B. amyloliquefaciens, improved the efficacy of BA3 in controlling gray mold decay of pears. Colonization variation of BA3 in wounds of pears was recorded. To begin with, the populations of B. amyloliquefaciens increased rapidly and remained stable. On the fourth day, there was a declining trend , after that the population increased to 4 × 10 5 CFU/wound and remained stable. BA3 had no significant effect on mass loss, titratable acidity, firmness and total soluble solids of pears that were stored at 25°C for 7 days comparing with control group. However, the effect of B. amyloliquefaciens on ascorbic acid was significantly higher than that of the control group. Our study indicates that B. amyloliquefaciens has a potential as postharvest biocontrol agent on pears.K e y w o r d s:

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A new strain of Metschnikowia fructicola for postharvest control of Penicillium expansum and patulin accumulation on four cultivars of apple

Cited by 75 publications

References 57 publications

Effect of the Yeast Rhodosporidium paludigenum on Postharvest Decay and Patulin Accumulation in Apples and Pears

Effect of the Yeast Rhodosporidium paludigenum on Postharvest Decay and Patulin Accumulation in Apples and Pears

The ability of a cold-adapted Rhodotorula mucilaginosa strain from Tibet to control blue mold in pear fruit

Biocontrol of Gray Mold Decay in Pear by Bacillus amyloliquefaciens Strain BA3 and its Effect on Postharvest Quality Parameters

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