{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Hamchand R"],"funding":["National Science Foundation"],"pagination":["11264"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7347609"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["10(1)"],"pubmed_abstract":["To date, only two pigments have been identified in avian eggshells: rusty-brown protoporphyrin IX and blue-green biliverdin IXα. Most avian eggshell colours can be produced by a mixture of these two tetrapyrrolic pigments. However, tinamou (Tinamidae) eggshells display colours not easily rationalised by combination of these two pigments alone, suggesting the presence of other pigments. Here, through extraction, derivatization, spectroscopy, chromatography, and mass spectrometry, we identify two novel eggshell pigments: yellow-brown tetrapyrrolic bilirubin from the guacamole-green eggshells of Eudromia elegans, and red-orange tripyrrolic uroerythrin from the purplish-brown eggshells of Nothura maculosa. Both pigments are known porphyrin catabolites and are found in the eggshells in conjunct"],"journal":["Scientific reports"],"pubmed_title":["Expanding the eggshell colour gamut: uroerythrin and bilirubin from tinamou (Tinamidae) eggshells."],"pmcid":["PMC7347609"],"funding_grant_id":["HRD-1400382","CHE-1800361"],"pubmed_authors":["Hamchand R","Hanley D","Prum RO","Bruckner C"],"additional_accession":[]},"is_claimable":false,"name":"Expanding the eggshell colour gamut: uroerythrin and bilirubin from tinamou (Tinamidae) eggshells.","description":"To date, only two pigments have been identified in avian eggshells: rusty-brown protoporphyrin IX and blue-green biliverdin IXα. Most avian eggshell colours can be produced by a mixture of these two tetrapyrrolic pigments. However, tinamou (Tinamidae) eggshells display colours not easily rationalised by combination of these two pigments alone, suggesting the presence of other pigments. Here, through extraction, derivatization, spectroscopy, chromatography, and mass spectrometry, we identify two novel eggshell pigments: yellow-brown tetrapyrrolic bilirubin from the guacamole-green eggshells of Eudromia elegans, and red-orange tripyrrolic uroerythrin from the purplish-brown eggshells of Nothura maculosa. Both pigments are known porphyrin catabolites and are found in the eggshells in conjunct","dates":{"release":"2020-01-01T00:00:00Z","publication":"2020 Jul","modification":"2025-06-01T02:53:21.097Z","creation":"2025-06-01T02:53:21.097Z"},"accession":"S-EPMC7347609","cross_references":{"pubmed":["32647200"],"doi":["10.1038/s41598-020-68070-7"]}}