Aspergillus, Penicillium and Cladosporium species associated with dried date fruits collected in the Perugia (Umbria, Central Italy) market

Quaglia, Mara; Santinelli, Marina; Sulyok, Michael; Onofri, Andrea; Covarelli, Lorenzo; Beccari, Giovanni

doi:10.1016/j.ijfoodmicro.2020.108585

Cited by 16 publications

(15 citation statements)

References 46 publications

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“…Only A. ochraceus was confirmed to produce OTA, whereas all A. niger aggregate isolates confirmed to be negative. This result is in agreement with previous studies reporting that A. tubingensis is a non-ochratoxigenic species, while only few isolates of A. niger are able to produce OTA (Abarca et al 2004;Gil-Serna et al 2019;Quaglia et al 2020). Aspergillus flavus were also considered non-aflatoxigenic (only screened on CAM).…”

Section: Mycobiota Profile Of Date Samplessupporting

confidence: 92%

“…The remaining species were rarely isolated. Previous studies on fungal contamination of palm dates report similar results (Abdel-Sater and Saber 1999; Azaiez et al 2015;Gherbawy et al 2012;Nass 2017;Quaglia et al 2020). Aspergillus section Nigri are distributed worldwide and are regarded as common food spoilage fungi (Ismail 2017;Cabañes and Bragulat 2018), and A. tubingensis has been frequently reported in Mediterranean countries (Pantelides et al 2017;Gil-Serna et al 2019;Quaglia et al 2020).…”

Section: Mycobiota Profile Of Date Samplesmentioning

confidence: 52%

“…According to previous surveys, it is noticeable that dried fruits are generally susceptible to fungal contamination and growth, and consequent mycotoxin production.In dried fruits, mycotoxin contamination has been mostly studied on aflatoxins (AFs) in dried figs, and on ochratoxin A (OTA) in dried vine fruits (e.g. Aksoy et al 2007;Bircan and Koç 2012;Heperkan et al 2012;Heshmati et al 2017;Iamanaka et al 2007), but mycotoxin contamination in dried dates has been poorly studied (Azaiez et al 2015;Gherbawy et al 2012;Ozer et al 2012;Quaglia et al 2020;Rahimi and Shakerian 2013;). Although the EU regulation 1881(EC 2006a does not include OTA maximum admissible levels for dried palm dates, the latest EFSA report on OTA risk assessment reports dried fruits (including dates) among the most important contributors to the chronic dietary exposure of European populations to OTA, mostly in children and toddlers, after meat products, cheese and grain products (EFSA 2020).…”

Section: Introductionmentioning

confidence: 99%

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A preliminary study on mycobiota and ochratoxin a contamination in commercial palm dates (Phoenix dactylifera)

Nikolchina

Rodrigues

2021

Mycotoxin Res

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The occurrence of mycotoxins and mycotoxigenic fungi in palm dates has not been thoroughly documented. The aims of the present study were to identify the mycobiota present in commercial date samples (n = 19), to determine the ability of the isolated fungi to produce mycotoxins, and to determine and quantify the presence of OTA in date fruits. The majority of products originated from Tunisia (n = 14) and Algeria (n = 3). The dominant fungal species were Aspergillus niger, Aspergillus tubingensis and Aspergillus flavus which were most frequently found in premium quality and organic produce, produced without chemical preservatives. OTA was found in only one sample at a concentration of 0.75 µg/kg, as determined by HPLC with fluorescence detection. Although this preliminary study did not find elevated levels of OTA, its presence in one out of 19 samples indicates that palm dates for human consumption require continuous and stringent control, in order to prevent contaminated produce from entering the market.

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Section: Mycobiota Profile Of Date Samplessupporting

confidence: 92%

Section: Mycobiota Profile Of Date Samplesmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A preliminary study on mycobiota and ochratoxin a contamination in commercial palm dates (Phoenix dactylifera)

Nikolchina

Rodrigues

2021

Mycotoxin Res

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“…The estimated loss of the dates, caused by fungal spoilage is estimated to be more than 50% ( Al-Sheikh, 2009 , Atia, 2011 ). The most common fungi genera responsible of decay spoilage losses because of their pathogenicity are Alternaria , Aspergillus , Cladosporium, Fusarium, Rhizopus, and Penicillium ( Al-Bulushi et al, 2017 , Al-Mutarrafi et al, 2019 , Al-Sheikh, 2009 , Al Ghamdi et al, 2019 , Bokhary, 2010 , Colman et al, 2012 , Gherbawy et al, 2012 , Ibrahim and Rahma, 2009 , Lobo et al, 2014 , Nasser, 2017 , Omamor and Hamza, 2006 , Palou et al, 2016 , Quaglia et al, 2020 , Ragab et al, 2001 ).…”

Section: Microbial and Insect Effects On Date Palmmentioning

confidence: 99%

“…The most important causal fungal agents of disease in Spanish date palm fruits were P. expansum , A. alternata , C. cladosporioides , and A. nigerclade ( Palou et al, 2016 ). Other species belonging to the genera Aspergillus , Penicillium, and Cladosporium are A. flavus , A. tubingensis , P. brevicompactum , P. crustosum , P. glabrum , P. venetum , C. cladosporioides , C. limoniforme and C. halotolerans ( Quaglia et al, 2020 ).…”

Section: Microbial and Insect Effects On Date Palmmentioning

confidence: 99%

Commercial techniques for preserving date palm (Phoenix dactylifera) fruit quality and safety: A review

Sarraf

Jemni²,

Kahramanoğlu

et al. 2021

Saudi Journal of Biological Sciences

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The popularity of date palm ( Phoenix dactylifera ) fruit is increasing, therefore the demand for high-quality date palm fruit with less or no chemical treatment is the topic of interest for date producers and consumers. The quality of date palm fruit is much dependent on its postharvest handling and processing. For preventing the degradation and maintenance of the high quality of dates during the storage an appropriate harvest and post-harvest processes are required. The process should control the biotic and abiotic factors like insects, fungus, temperature, as well as handling and processing of dates. Therefore, in this work, we reviewed the literature related to the protection of date fruits during their post-harvest life. The commercially viable advance and updated techniques that can be used to avoid storage losses and problems while keeping fruit quality (nutritional, color, flavor, and texture) and microbial safety under optimal conditions are discussed.

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Diversity of the microbial community and antioxidant activity during fermentation of red raspberry Enzymes

Yao

Wang

2020

Food Science & Nutrition

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The diversity and succession of microbial community and antioxidant activity present during the preparation of red raspberry Enzymes with and without starter cultures were investigated by high‐throughput sequencing of 16S rRNA and ITS1 genes and correlation analysis of the microbial diversity and antioxidant activity. The results showed that the sample inoculated with mixed fermentation had higher antioxidant activity than the sample without inoculated fermentation. The antioxidant capacity of red raspberry Enzymes increased significantly as the fermentation time increased. Firmicutes and Ascomycota were the predominant phyla of bacteria and fungi in all samples. At the genus level, Rhodococcus and Lactobacillus were the predominating bacteria throughout the fermentation process. The genus Kodamaea dominated the fungal community of early‐fermentation samples with microbial inoculated fermentation. Candida spp. grew rapidly in the late stage of fermentation in the samples with spontaneous fermentation. Unweighted pair‐group and PCA analysis revealed that the microbiota structures differed between the two groups. RDA and CCA showed that Rhodococcus and Kodamaea had positive effects on the DPPH scavenging ability and other antioxidant indicators, and the total phenol content had a significant and positive correlation coefficient with Gluconobacter. The results indicated that the fermentation by microorganisms significantly improves the oxidation resistance and helps to improve the quality of the red raspberry Enzymes.

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Aspergillus, Penicillium and Cladosporium species associated with dried date fruits collected in the Perugia (Umbria, Central Italy) market

Cited by 16 publications

References 46 publications

A preliminary study on mycobiota and ochratoxin a contamination in commercial palm dates (Phoenix dactylifera)

A preliminary study on mycobiota and ochratoxin a contamination in commercial palm dates (Phoenix dactylifera)

Commercial techniques for preserving date palm (Phoenix dactylifera) fruit quality and safety: A review

Diversity of the microbial community and antioxidant activity during fermentation of red raspberry Enzymes

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