Penicillium air mycoflora in postharvest fruit handling environments associated with the pear export chain

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dc.contributor.author Scholtz, Ilonka
dc.contributor.author Siyoum, Nazareth A.
dc.contributor.author Korsten, Lise
dc.date.accessioned 2018-04-03T08:50:57Z
dc.date.issued 2017-06
dc.description.abstract Penicillium is a well-known airborne fungal contaminant that is prevalent in indoor air. In this study, the total air mycoflora was determined in postharvest fruit handling environments. The study included eleven indoor environments from the packhouse to the final retail outlet. Standard active and passive air sampling methods were used over a period of three years to obtain a profile of air quality. A total of 6047 and 5849 Penicillium colonies were counted of which 1123 and 508 isolates were obtained using active and passive sampling methods respectively. Ultimately, 25 dominant Penicillium spp. were identified from active air samples. The five most prevalent species isolated were: P. glabrum (31.88%); P. expansum (14.18%); P. crustosum (13.42%); P. chrysogenum (10.35%) and P. brevicompactum (10.25%). Furthermore, a total of 22 Penicililum spp. were isolated from passive air samples with P. glabrum (23.72%); P. italicum (16.45%); P. brevicompactum (14.22%); P. crustosum (13.80%) and P. chrysogenum (11.76%) being most prevalent. The presence of pathogenic Penicillium spp. in the air of fruit handling environments was profiled. Counts of total air mycoflora were significantly higher in the re-pack facilities than in all other environments sampled and are significantly higher than the proposed baseline threshold value. This study clearly shows the importance of air quality in facilities that regularly handle different fruit types. Re-pack and retail facilities should therefore be cleaned more effectively to reduce the potential air inoculum that can induce decay of fruit at the market-end. Finally we propose an air quality standard for fresh produce environments. en_ZA
dc.description.department Plant Production and Soil Science en_ZA
dc.description.embargo 2018-06-01
dc.description.librarian hj2018 en_ZA
dc.description.sponsorship The National Research Foundation (NRF), Technology and Human Resources for Industry Programme, the South African Apple and Pear Producers Association (administered by Fruitgro Science), the Department of Science and Technology, Fresh Produce Exporters Forum, Postharvest Innovation Programme PHi and the University of Pretoria. en_ZA
dc.description.uri http://www.elsevier.com/locate/postharvbio en_ZA
dc.identifier.citation Scholtz, I., Siyoum, N. & Korsten, L. 2017, 'Penicillium air mycoflora in postharvest fruit handling environments associated with the pear export chain', Postharvest Biology and Technology, vol. 128, pp. 153-160. en_ZA
dc.identifier.issn 0925-5214 (print)
dc.identifier.issn 1873-2356 (online)
dc.identifier.other 10.1016/j.postharvbio.2017.01.009
dc.identifier.uri http://hdl.handle.net/2263/64371
dc.language.iso en en_ZA
dc.publisher Elsevier en_ZA
dc.rights © 2017 Published by Elsevier B.V. Notice : this is the author’s version of a work that was accepted for publication in Postharvest Biology and Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Postharvest Biology and Technology, vol. 128, pp. 153-160, 2017. doi : 10.1016/j.postharvbio.2017.01.009. en_ZA
dc.subject Air en_ZA
dc.subject Mycoflora en_ZA
dc.subject Penicillium en_ZA
dc.subject Postharvest en_ZA
dc.subject Fruit en_ZA
dc.subject Environment en_ZA
dc.title Penicillium air mycoflora in postharvest fruit handling environments associated with the pear export chain en_ZA
dc.type Postprint Article en_ZA


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