Effects of Penicillium expansum infection on the quality and flavor of yellow flesh kiwifruit during cold storage

2021 ◽  
Author(s):  
Dan Wang ◽  
Junqing Bai ◽  
Tianzi Huang ◽  
Jin Liang ◽  
Lu Zhang ◽  
...  
Keyword(s):  
Cold Storage ◽  
Penicillium Expansum ◽  
Yellow Flesh

scholarly journals Effects of 1-Methylcyclopropene and Heat Treatments on Ripening and Postharvest Decay in `Golden Delicious' Apples

2003 ◽  
Vol 128 (1) ◽  
pp. 120-127 ◽  
Author(s):  
Robert A. Saftner ◽  
Judith A. Abbott ◽  
William S. Conway ◽  
Cynthia L. Barden
Keyword(s):  
Heat Treatment ◽  
Cold Storage ◽  
Ethylene Production ◽  
Titratable Acidity ◽  
Heat Treatments ◽  
Penicillium Expansum ◽  
Colletotrichum Acutatum ◽  
Peel Color ◽  
Golden Delicious ◽  
Force Profile

Prestorage heat, CA storage, and pre- and poststorage treatments with the ethylene action inhibitor, 1-methylcyclopropene (MCP), were tested for their efficacy at inhibiting fungal decay and maintaining quality in `Golden Delicious' apples [Malus sylvestris (L.) Mill. Yellow Delicious Group] stored 0 to 5 months at 0 °C and 7 days at 20 °C. Before storage in air at 0 °C, preclimacteric fruit were treated with either MCP at a concentration of 1 μL·L-1 for 17 hours at 20 °C, 38 °C air for 4 days, MCP plus heat, or left untreated. Some sets of untreated fruit were stored in a controlled atmosphere of 1.5 kPa O2 and 2.5 kPa CO2 at 0 °C while other sets were removed from cold storage in air after 2.5 or 5 months, warmed to 20 °C, and treated with 1 μL·L-1 MCP for 17 hours. Prestorage MCP, heat, MCP plus heat treatments and CA storage decreased decay severity caused by wound-inoculated Penicillium expansum Link, Botrytis cinerea Pers.:Fr., and Colletotrichum acutatum Simmonds (teleomorph Glomerella acutata J.C. Guerber & J.C. Correll sp.nov.). Poststorage MCP treatment had no effect on decay severity. Both prestorage MCP treatment and CA storage delayed ripening as indicated by better retention of green peel color, titratable acidity, and Magness-Taylor flesh firmness, and the reduced respiration, ethylene production rates, and volatile levels that were observed upon transferring the fruit to 20 °C. The prestorage MCP treatment delayed ripening more than CA storage. Following 5 months cold storage, the prestorage MCP treatment maintained the shape of the compression force/deformation curve compared with that of fruit at harvest, as did CA storage, but at a lower force profile. The heat treatment had mixed effects on ripening: it hastened loss of green peel color and titratable acidity, but maintained firmness and delayed increases in respiration, ethylene production and volatile levels following cold storage. The MCP plus heat treatment inhibited ripening more than heat treatment alone but less than MCP treatment alone. In one of 2 years, the MCP plus heat treatment resulted in superficial injury to some of the fruit. Results indicated that MCP may provide an effective alternative to CA for reducing decay severity and maintaining quality during postharvest storage of `Golden Delicious' apples. Prestorage heat to control decay and maintain quality of apples needs further study, especially if used in combination with MCP.

scholarly journals Biocontrol of postharvest decay using a new strain of Pseudomonas syringae CPA-5 in different cultivars of pome fruits

2008 ◽  
Vol 16 (1) ◽  
pp. 56 ◽  
Author(s):  
C. NUNES ◽  
J. USALL ◽  
N. TEIXIDÓ
Keyword(s):  
Pseudomonas Syringae ◽  
Cold Storage ◽  
High Capacity ◽  
Storage Conditions ◽  
Antagonistic Activity ◽  
Penicillium Expansum ◽  
Rhizopus Stolonifer ◽  
Pome Fruits ◽  
Golden Delicious ◽  
Micro Organisms

Epiphytic micro-organisms isolated from fruits and leaves surfaces of apples from different orchards were screened for antagonistic activity against Penicillium expansum. From all micro-organisms tested the new strain CPA-5 of Pseudomonas syringae, isolated from organic orchard, was selected. This strain was very effective against Botrytis cinerea, P. expansum and Rhizopus stolonifer at various antagonist and pathogen concentrations on ‘Golden Delicious’ apple, and ‘Blanquilla’, ‘Rocha’ and ‘Conference’ pear. Under cold storage conditions and in semi-commercial trials P. syringae (CPA-5) significantly reduced development of P. expansum and B. cinerea on ‘Golden Delicious’ apple, and ‘Blanquilla’ and ‘Rocha’ pears. Control of P. expansum equal to the fungicide imazalil was obtained with CPA-5 at 108cfu ml–1 on ‘Gold Delicious’ apple and ‘Rocha’ pear. The populations of P. syringae CPA-5 increased more than 100-fold during the first 50 days, and then remained stable on apple, and slightly decreased on pears. This indicates the high capacity of this antagonist to colonize wound surfaces of pome fruits under cold storage conditions.;

Control of blue mold (Penicillium expansum) by fludioxonil in apples (cv Empire) under controlled atmosphere and cold storage conditions

2005 ◽  
Vol 61 (6) ◽  
pp. 591-596 ◽  
Author(s):  
Deena Errampalli ◽  
John Northover ◽  
Lisa Skog ◽  
Nichole R Brubacher ◽  
Cheryl A Collucci
Keyword(s):  
Cold Storage ◽  
Storage Conditions ◽  
Penicillium Expansum ◽  
Controlled Atmosphere ◽  
Blue Mold

scholarly journals Control of Blue Mold of Apples by Preharvest Application of Candida sake Grown in Media with Different Water Activity

1998 ◽  
Vol 88 (9) ◽  
pp. 960-964 ◽  
Author(s):  
N. Teixidó ◽  
I. Viñas ◽  
J. Usall ◽  
N. Magan
Keyword(s):  
Population Size ◽  
Water Activity ◽  
Cold Storage ◽  
Storage Conditions ◽  
Lesion Size ◽  
Penicillium Expansum ◽  
Laboratory Studies ◽  
Blue Mold ◽  
Infected Wounds ◽  
Candida Sake

Unmodified and low water activity (aw)-tolerant cells of Candida sake CPA-1 applied before harvest were compared for ability to control blue mold of apples (‘Golden Delicious’) caused by Penicillium expansum under commercial storage conditions. The population dynamics of strain CPA-1 on apples were studied in the orchard and during storage following application of 3 × 106 CFU/ml of each treatment 2 days prior to harvest. In the field, the population size of the unmodified treatment remained relatively unchanged, while the population size of the low-aw-modified CPA-1 cells increased. During cold storage, the populations in both treatments increased from 103 to 105 CFU/g of apple after 30 days, and then declined to about 2.5 × 104 CFU/g of apple. In laboratory studies, the low-aw-tolerant cells provided significantly better disease control as compared with the unmodified cells and reduced the number of infected wounds and lesion size by 75 and 90%, respectively, as compared with the non-treated controls. After 4 months in cold storage, both unmodified and low-aw-tolerant cells of C. sake were equally effective against P. expansum on apple (>50% reduction in size of infected wounds).

Disinfection of airborne spores of Penicillium expansum in cold storage using continuous direct current corona discharge

2012 ◽  
Vol 113 (2) ◽  
pp. 112-119 ◽  
Author(s):  
Sheng-ying Ye ◽  
Xian-liang Song ◽  
Jia-Liang Liang ◽  
Sen-hong Zheng ◽  
Yi Lin
Keyword(s):  
Corona Discharge ◽  
Cold Storage ◽  
Direct Current ◽  
Penicillium Expansum ◽  
Airborne Spores

scholarly journals Production of patulin by various isolates of Penicillium expansum (Link) Thom

2013 ◽  
Vol 35 (2) ◽  
pp. 235-242
Author(s):  
M. Pytel ◽  
H. Borecka
Keyword(s):  
Liquid Medium ◽  
Cold Storage ◽  
Penicillium Expansum ◽  
Growth Production ◽  
Apple Tissue ◽  
Fungus Growth

The production of patulin by fourteen isolates of <i>Penicillium expansum</i> (Link) Thorn was studied. The fungus was isolated from apples, pears and air in cold storage rooms in Poland. Different isolates of fungus produced from 268 to 2225 µg/ml patulin into the liquid medium. The productivity of the isolates depends on the source of carbon in the medium and temperature during fungus growth. Production of patulin was not correlated with the pathogenicity of the fungus isolate. The fungus produces less patulin when growing on apple tissue than on Czapek liquid medium.

scholarly journals Preharvest Application of a Boscalid and Pyraclostrobin Mixture to Control Postharvest Gray Mold and Blue Mold in Apples

Plant Disease ◽  
2009 ◽  
Vol 93 (2) ◽  
pp. 185-189 ◽  
Author(s):  
C. L. Xiao ◽  
R. J. Boal
Keyword(s):  
Botrytis Cinerea ◽  
Cold Storage ◽  
Malus Domestica ◽  
Gray Mold ◽  
Alternative Strategy ◽  
Fruit Rot ◽  
Effective Alternative ◽  
Penicillium Expansum ◽  
Blue Mold

After harvest, apples (Malus × domestica) may be kept in cold storage for up to 12 months prior to packing. Gray mold caused by Botrytis cinerea and blue mold caused by Penicillium expansum are common postharvest fruit rot diseases affecting apples and are controlled commonly by applications of fungicides after harvest. To search for an alternative strategy, Pristine (a premixed formulation of boscalid and pyraclostrobin) as a preharvest treatment was evaluated for control of postharvest gray mold and blue mold in cultivars Fuji and Red Delicious apples during 2004 to 2006. Pristine (0.36 g per liter of water) was applied 1, 7, or 14 days before harvest. For comparison, thiram (2.04 g per liter of water) was applied 7 days before harvest and ziram (2.4 g per liter of water) was applied 14 days before harvest, to Fuji and Red Delicious, respectively. Fruit were harvested at commercial maturity, wounded with a finishing nail head, inoculated with conidial suspensions of either B. cinerea or P. expansum, stored in air at 0°C, and evaluated for decay after 8 or 12 weeks. In 2004 and 2005, Pristine was equally effective when applied to Fuji 1 or 7 days before harvest, reducing gray mold incidence by 93 to 99% and blue mold incidence by 78 to 94% compared with the nontreated control. Thiram reduced gray mold incidence by 38 to 85%. Thiram reduced blue mold incidence by 22% in 2004 but not in 2005. On Red Delicious, Pristine was equally effective when applied 7 or 14 days before harvest and reduced gray mold incidence by 69 to 85% and blue mold incidence by 41 to 70%. Ziram applied 2 weeks before harvest reduced gray mold incidence by 97 and 94% in 2005 and 2006, respectively, but it did not reduce blue mold incidence. The results indicate that Pristine applied within 2 weeks before harvest may be an effective alternative to postharvest fungicides for control of postharvest gray mold and blue mold in Fuji and Red Delicious apples.

scholarly journals Persistence of Listeria innocua on Fresh Apples During Long-Term Controlled Atmosphere Cold Storage with Postharvest Fungal Decay

2021 ◽  
Author(s):  
Alexis Hamilton ◽  
Blanca Ruiz-Llacsahuanga ◽  
Manoella Mendoza ◽  
James Mattheis ◽  
Ines Hanrahan ◽  
...  
Keyword(s):  
Food Safety ◽  
Cold Storage ◽  
Limit Of Detection ◽  
Growth Patterns ◽  
Listeria Innocua ◽  
Penicillium Expansum ◽  
Controlled Atmosphere ◽  
Storage Duration ◽  
Apple Variety

Recent apple-related recall and outbreak events have exposed a need for better food safety controls along the supply chain. Following harvest apples can be stored under a controlled atmosphere for up to one year after harvest before packing and distribution, making the crop susceptible to many opportunities for contamination that increase the quantity of postharvest losses. Botrytis cinerea (BC) and Penicillium expansum (PE) cause significant rot-associated losses to the apple industry. These fungi can colonize and destroy apple tissue as storage duration increases, which may also impact the growth of saprophytic foodborne pathogens like Listeria monocytogenes . Thus the objective of this study was to observe population changes of Listeria innocua (LI) as a surrogate for L. monocytogenes on apples inoculated with BC or PE under long-term controlled atmosphere cold storage conditions to identify the effect of postharvest mold growth on growth patterns of a food safety-relevant microorganism. ‘Gala’ and ‘WA 38’ apples (n = 1,080) were harvested, treated with pyrimethanil, and inoculated with LI only, or LI and one of the mold species on wounded and unwounded portions of the apple equator. Apples were treated with 1-methylcyclopropene and stored at a controlled atmosphere (2kPa O 2 , 1kPa CO 2 , 1°C) for 1 week and 1, 3, 6, 9 and 11 months before enumeration. After three months LI consistently fell below the limit of detection (2.35 log CFU/g) and samples were enriched following a modified BAM method with PCR confirmation. Listeria persistence was dependent on the storage duration and type of fungal contamination ( p &lt; 0.05). Surface wounding may impact these trends, depending on the apple variety.   Prevalence of LI was greater in ‘Gala’ apples. Future studies should more closely examine the interactions on the fruit surface that occur during the seemingly critical timeframe of three-to-six months in storage.

Influence of post-harvest technologies applied during cold storage of apples in Penicillium expansum growth and patulin accumulation: A review

Food Control ◽  
2010 ◽  
Vol 21 (7) ◽  
pp. 953-962 ◽  
Author(s):  
Héctor Morales ◽  
Sonia Marín ◽  
Antonio J. Ramos ◽  
Vicente Sanchis
Keyword(s):  
Cold Storage ◽  
Penicillium Expansum ◽  
Post Harvest
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