摘要
旨在开发一种新型的食糖产地溯源分析方法,以应对名优特产品保护、走私和假冒伪劣产品打击等迫切需求。由于白砂糖的高纯度导致其指纹特征缺乏,研究采用细分升维的分析方法,挖掘高纯度糖中的碳稳定同位素比率信息,通过离子碎片率的对比,实现食糖产地的精确溯源。结果表明,本方法成功地将单一维度δ^(13)C信息细分为多个分子碎片的δ^(13)C信息,显著扩大了区域δ^(13)C指纹信息差异化。通过K均值聚类分析和双T检验,验证了该方法对于白砂糖产地溯源的准确性。不同地区厂家的同位素比值存在差异,且方法鉴别准确率在80%以上。该方法为食糖安全与质量控制提供了可靠的技术支持,未来建议构建更完善的追溯模型和数据库系统,以全面应用于实际生产与流通环节的产品来源识别。
The aim of this study is to develop a novel method for tracing the origin of sugar,in order to address urgent needs such as protecting high-quality and specialty products,combating smuggling,and cracking down on counterfeit and inferior products.Due to the high purity of white sugar,its fingerprint features are lacking.Therefore,the study adopts a subdivision and dimensionality enhancement analysis method to explore the stable isotope ratio information of carbon in high-purity sugar.Through the comparison of ion fragment rates,precise traceability of sugar production areas can be achieved.The results indicate that this method successfully subdivides single dimensionalδ^(13)C information intoδ^(13)C information of multiple molecular fragments,significantly expanding the differentiation of regionalδ^(13)C fingerprint information.The accuracy of this method for tracing the origin of white sugar was verified through K-means clustering analysis and double T test.There are differences in isotopic ratios among manufacturers in different regions,and the accuracy of method identification is over 80%.This method provides reliable technical support for sugar safety and quality control.In the future,it is recommended to build a more comprehensive traceability model and database system for product source identification in actual production and circulation processes.
作者
李硕聪
林柱
高裕锋
甄振鹏
LI Shuocong;LIN Zhu;GAO Yufeng;ZHEN Zhenpeng(Institute of Biological and Medical Engineering,Guangdong Academy of Sciences,Guangzhou 510316,Guangdong,China)
出处
《甘蔗糖业》
2025年第1期91-96,共6页
Sugarcane and Canesugar
基金
国家自然科学基金青年项目“食糖产地溯源技术中蔗糖分子碎片稳定同位素比率变化规律与机理研究”(32402224)
广州市科技局基础与应用基础研究项目“基于细分升维技术的白砂糖产地溯源应用研究”(202201011296)。
关键词
食糖溯源
质谱
离子碎片分析
细分升维
Sugar traceability
Mass spectrometry
Ion fragment analysis
Subdivision dimension enhancement
