Fungal diversity in honeys from northwest Spain and their relationship to the ecological origin of the product

Seijo, María Carmen; Escuredo, Olga; Fernández-González, María

doi:10.1080/00173134.2011.559555

Cited by 25 publications

(13 citation statements)

References 22 publications

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“…Recently, Monascus mellicola, Penicillium apimei, P. meliponae, P. mellis, and Talaromyces brasiliensis were reported from honey produced by stingless bees (Melipona scutellaris, family Apidae, order Hymenoptera) inhabiting Brazilian forests (Barbosa et al 2017(Barbosa et al , 2018. Common environmental and plant pathogenic species of fungi have been reported in samples of honey collected in Spain (Pérez-Sánchez et al 1997;Seijo et al 2011;Magyar et al 2016;Terrab et al 2019) and Portugal (Martíns et al 2003). In another study, the yeast Metschnikowia reukaufii was, surprisingly, the only fungus reported for floral honey from Portugal and Spain (Magyar et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Diversity of xerotolerant and xerophilic fungi in honey

et al. 2019

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Fungi can colonize most of the substrata on Earth. Honey, a sugary food produced by bees (and other insects) has been studied little in terms of its fungal diversity. We have surveyed and evaluated the presence of xerotolerant and xerophilic fungi in a set of honey bee samples collected from across Spain. From 84 samples, a total of 104 fungal strains were isolated, and morphologically and phylogenetically characterized. We identified 32 species distributed across 16 genera, most of them belonging to the ascomycetous genera Aspergillus, Bettsia, Candida, Eremascus, Monascus, Oidiodendron, Penicillium, Skoua, Talaromyces and Zygosaccharomyces. As a result of this survey, eight new taxa are proposed: i.e. the new family Helicoarthrosporaceae, two new genera, Helicoarthrosporum and Strongyloarthrosporum in Onygenales; three new species of Eurotiales, Talaromyces affinitatimellis, T. basipetosporus, and T. brunneosporus; and two new species of Myxotrichaceae, Oidiodendron mellicola, and Skoua asexualis.

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Section: Introductionmentioning

confidence: 99%

Diversity of xerotolerant and xerophilic fungi in honey

et al. 2019

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“…At the time of honey classification, the presence or absence of fungal spores and the fungi that give rise to these fungal elements should be considered. This is because some fungal elements are not related to the presence of honeydew in honeys [32]. However, significant relationships between the presence of certain spores of plant pathogenic fungi (e.g., Alternaria , Helminthosporium , Uncinula , etc.)…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties and Pollen Profile of Oak Honeydew and Evergreen Oak Honeydew Honeys from Spain: A Comparative Study

Seijo

Escuredo

2019

Foods

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This work investigates the similarities and differences of oak honeydew (Quercus pyrenaica Willd.) and evergreen honeydew (Quercus ilex L.) honey produced in Spain. For this purpose, the physicochemical characteristics of 17 samples from oak honeydew and 11 samples from evergreen honeydew collected in different geographical regions were analyzed. All the samples accomplished European Union requirements for honey consumption. Both honey types had amber dark color; however, the evergreen oak honey was clearer than oak honey, having higher mean values in a* and b* coordinates of CIELab scale. In general, both honey types exhibited high electrical conductivity, a moderate value of pH, medium to low water content, and high diastase activity. The reducing sugar content was significantly lower and maltose content was significantly higher in evergreen honeydew. In addition, total phenols and total flavonoid contents, the antioxidant activity and the melissopalynological analysis was performed. The oak honeydew honey had a higher abundance of Castanea, Rubus and Erica pollen grains, while the evergreen oak honeydew honey had a higher abundance of Lavandula, Olea europaea or Anthyllis cytisoides. A multivariate analysis using the most representative pollen types and physicochemical components facilitated the differentiation of the honey samples, thus this information can be useful for the honey characterization.

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“…The second acacia sample analyzed in the present study, presented a high amount of fungus and (Figure 3). The origin of the fungus, may be from non-compliance of the good beekeeping practices, or together with a high conductivity, show another denomination for the honey sample (honeydew, not nectar honey) (Seijo et al, 2011). Different types of hyphae were identified in the analyzed sample ( Figure 3).…”

Section: Resultsmentioning

confidence: 99%

Fungal Diversity and Over-Represented Non-Nectariferous Plants Pollen in Honey. Case Study on Acacia Honey Authenticity, Analyzed in APHIS Laboratory

et al. 2020

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Pollen analysis is the basic method for the determination of the botanical and geographical origin of honey. However, the presence of over-represented pollen in honeys may lead to false results of the analysis. This can be more severe if this pollen is present in unifloral under-represented honeys of commercial importance (e.g. thyme or acacia honey). In the present study, we investigated the abundance of nectarless pollen grains on several quality characteristics in honey samples. In particular, the physic-chemical (diastase activity, electrical conductivity, sugars and HMF content) analysis were carried out in order to confirm the declared botanical origin. Spectrophotometric method was used for diastase activity determination, electrical conductivity was determined by potentiometry and chromatographic determinations for HMF content (photodiode array detection) and sugars (HPLC refractive index detection). The present study confirms that, in the case of non-nectariferous pollen presence in honeys, a second count must be made, excluding this pollen type and pollen analysis alone cannot give reliable results for the determination of the botanical origin. Consequently, pollen analysis should be combined with other analyses, especially in honeys with under-represented pollens, to give precise results for the botanical characterization and labeling of honeys.

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Fungal diversity in honeys from northwest Spain and their relationship to the ecological origin of the product

Cited by 25 publications

References 22 publications

Diversity of xerotolerant and xerophilic fungi in honey

Diversity of xerotolerant and xerophilic fungi in honey

Physicochemical Properties and Pollen Profile of Oak Honeydew and Evergreen Oak Honeydew Honeys from Spain: A Comparative Study

Fungal Diversity and Over-Represented Non-Nectariferous Plants Pollen in Honey. Case Study on Acacia Honey Authenticity, Analyzed in APHIS Laboratory

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