海龟(机器人)
肽
生物
软组织
明胶
生物化学
化学
渔业
病理
医学
作者
Hesheng Xia,Xun Liu,Shuo Cai,Shengjun Chen,Song Li,Ming Zhao,Jin‐Ao Duan,Rui Li,Seung Hoon Han
标识
DOI:10.1016/j.foodchem.2023.135983
摘要
The soft-shelled turtle is a commercially aquatic species in Asian countries, which serves as an important source of collagen with high nutritional and medicinal value, so it is of great significance to distinguish soft-shelled turtle derived collagen from others or adulterations. In this work, peptidomics analysis based on post-translational modification (PTM) assay was used to discover specific peptide biomarkers of soft-shelled turtle gelatin (STG). In total eight specific sequences and 74 peptides with different PTM types were screened out, and seven peptides with good signal responses and STG specificity were selected and validated as STG-specific peptide biomarkers. These peptide biomarkers could be used for distinguishing STG from other animal gelatins, and applied for ensuring the quality of collagens or gelatins from soft-shelled turtle with authenticity and traceability.
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