2019
DOI: 10.1021/acs.jafc.9b05190
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Characterization of Novel Protein Component as Marker for Floral Origin of Jujube (Ziziphus jujuba Mill.) Honey

Abstract: Jujube (Ziziphus jujuba Mill.) honey, one of the most valuable honey varieties from China with unique characteristics, is vulnerable to being the target of adulteration and deliberate mislabeling of botanical origin. This study investigated the typical protein component of jujube honey to authenticate the floral source by SDS-PAGE analysis combined with LC–MS/MS identification, and its stability to heating was also evaluated. One band and two adjacent but independent bands, both with molecular weights of ∼19 k… Show more

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Cited by 15 publications
(4 citation statements)
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“…A previous study also reported that ZH could contain protein components, even cyclic peptides, with potential medicinal values [ 45 ]. These proteins can be used as a marker for floral origin [ 46 ]. In our case, we report a tripeptide Asp-Thr-Gly, which could be a specific marker for the floral origin of our investigated ZH.…”
Section: Discussionmentioning
confidence: 99%
“…A previous study also reported that ZH could contain protein components, even cyclic peptides, with potential medicinal values [ 45 ]. These proteins can be used as a marker for floral origin [ 46 ]. In our case, we report a tripeptide Asp-Thr-Gly, which could be a specific marker for the floral origin of our investigated ZH.…”
Section: Discussionmentioning
confidence: 99%
“…Sodium dodecyl sulfate–polyacrylamide gel electrophoresis (SDS-PAGE) is commonly used as a protein-based analytical method because of a high reliability on molecules with mass range of 15–200 kDa with errors less than 10%. Obtained via SDS-PAGE analysis and identified by liquid chromatography–tandem mass spectrometry (LC–MS/MS), one Z. jujuba -derived protein (gene number Zj.jz 016003045) with a molecular weight of 19 kDa was used for the recognition of jujube honey . SDS-PAGE was also applied to classify the entomological origin of stingless bee honeys, such as Apis cerana honey and Apis mellifera honey. , In addition, chromatographic peak areas of honey from multifloral (2.96) and monofloral (1.19) honey at protein molecular weight of 220 kDa could be used to differentiate multi- and monofloral honey samples …”
Section: Identification Based On Biomacromolecular Substancesmentioning
confidence: 99%
“…The rough estimate of protein is about 0.5%, which includes amino acids and enzymes; however, the contribution of these proteins in meeting daily requirements is marginal. The main enzymes are amylase, invertase, and oxidase [17]. Proline, which makes up 80-90% of all the amino acids in honey, is the main amino acid found in it.…”
Section: Proteinsmentioning
confidence: 99%