Correlation between methyl anthranilate level and percentage of pollen in Spanish citrus honey

“…Honey melissopalynological analysis, based on the identification and quantification of the pollen percentage by microscopic examination, is a very useful method to determine the geographical origin of honeys [44]. However, pollen analysis may not give enough information for several honey types obtained from plant genus with underrepresented or overrepresented pollen, such as Citrus spp., Robinia pseudoacacia, Arbutus unedo or Castanea sativa [45][46][47][48]. Consequently, there is a need for detailed chemical characterization of these honeys, and the identification of volatile compounds can provide an additional tool in its authentication [49][50][51].…”

Section: Introductionmentioning

confidence: 99%

Honey Volatiles as a Fingerprint for Botanical Origin—A Review on their Occurrence on Monofloral Honeys

et al. 2020

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Honeys have specific organoleptic characteristics, with nutritional and health benefits, being highly appreciated by consumers, not only in food but also in the pharmaceutical and cosmetic industries. Honey composition varies between regions according to the surrounding flora, enabling its characterization by source or type. Monofloral honeys may reach higher market values than multifloral ones. Honey’s aroma is very specific, resulting from the combination of volatile compounds present in low concentrations. The authentication of honey’s complex matrix, according to its botanical and/or geographical origin, represents a challenge nowadays, due to the different sorts of adulteration that may occur, leading to the search for reliable marker compounds for the different monofloral honeys. The existing information on the volatiles of monofloral honeys is scarce and disperse. In this review, twenty monofloral honeys and honeydews, from acacia, buckwheat, chestnut, clover, cotton, dandelion, eucalyptus, fir tree, heather, lavender, lime tree, orange, pine, rape, raspberry, rhododendron, rosemary, strawberry tree, sunflower and thyme, were selected for volatile comparison purposes. Taking into consideration the country of origin, the technique of isolation and analysis, the five main volatiles from each of the honeys are compared. Whereas some compounds were found in several types of monofloral honey, and thus not considered good volatile markers, some monofloral honeys revealed characteristic volatile compounds independently of their provenance.

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“…These processes decrease the amount of phylogenetic information available for evolutionary inference and increase the chance of tree reconstruction artifacts such as long branch attraction. Such factors have been noted in debates regarding the placement of the alphaproteobacterial ancestor lineage of mitochondria (Fitzpatrick et al, 2006; Ferla et al, 2013; Wang and Wu, 2015; Martijn et al, 2018), and may impact the nucleotide or amino acid sequences used in any given phylogenetics study to varying degrees. This may, in part, explain the conflicting topologies recovered for the placement of plastids within Cyanobacteria.…”

Section: Introductionmentioning

confidence: 99%

An Expanded Ribosomal Phylogeny of Cyanobacteria Supports a Deep Placement of Plastids

et al. 2019

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The phylum Cyanobacteria includes free-living bacteria and plastids, the descendants of cyanobacteria that were engulfed by the ancestral lineage of the major photosynthetic eukaryotic group Archaeplastida. Endosymbiotic events that followed this primary endosymbiosis spread plastids across diverse eukaryotic groups. The remnants of the ancestral cyanobacterial genome present in all modern plastids, enable the placement of plastids within Cyanobacteria using sequence-based phylogenetic analyses. To date, such phylogenetic studies have produced conflicting results and two competing hypotheses: (1) plastids diverge relatively recently in cyanobacterial evolution and are most closely related to nitrogen-fixing cyanobacteria, or (2) plastids diverge early in the evolutionary history of cyanobacteria, before the divergence of most cyanobacterial lineages. Here, we use phylogenetic analysis of ribosomal proteins from an expanded data set of cyanobacterial and representative plastid genomes to infer a deep placement for the divergence of the plastid ancestor lineage. We recover plastids as sister to Gloeomargarita and show that the group diverges from other cyanobacterial groups before Pseudanabaena , a previously unreported placement. The tree topologies and phylogenetic distances in our study have implications for future molecular clock studies that aim to model accurate divergence times, especially with respect to groups containing fossil calibrations. The newly sequenced cyanobacterial groups included here will also enable the use of novel cyanobacterial microfossil calibrations.

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Correlation between methyl anthranilate level and percentage of pollen in Spanish citrus honey

Cited by 18 publications

References 20 publications

Quality assessment of Portuguese monofloral honeys. Physicochemical parameters as tools in botanical source differentiation

Quality assessment of Portuguese monofloral honeys. Physicochemical parameters as tools in botanical source differentiation

Honey Volatiles as a Fingerprint for Botanical Origin—A Review on their Occurrence on Monofloral Honeys

An Expanded Ribosomal Phylogeny of Cyanobacteria Supports a Deep Placement of Plastids

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