微波消解-ICP-AES法测定新疆玉米矿物元素含量及主成分分析

【目的】研究新疆地区玉米籽粒中矿物元素的含量,为提高新疆玉米营养品质及加工品质提供理论依据。【方法】采集新疆地区23份玉米籽粒样品,采用微波消解-电感耦合等离子发射光谱(ICP-AES)法分析钙、铁、锌、镁、磷等5种元素的含量,运用SPSS软件进行主成分分析和相关性分析。【结果】23份新疆玉米籽粒品种镁的含量变动范围为92.65~138.26 mg/100g,磷的含量变动范围为158.91~282.71 mg/100g,钙的含量变动范围为8.22~17.15 mg/100g,锌的含量变动范围为0.84~1.95 mg/100g,铁的含量的变动范围为0.36~1.29 mg/100g。【结论】矿物元素综合得分由高到低依次为登海8883>新玉54号>新玉9号>2564>新玉47号>新玉80号>新玉87号>新玉84号>新玉41号>3376>农润919> KX9384>禾玉187>新玉60号> M753>新玉74号>新玉59号>新玉29号>9384>335>新玉77号>新玉13号>新玉65号。

Determination of Mineral Elements in Maize Cultivars by Microwave Digestion/ICP-AES and Principal Component Analysis

【Objective】 To analyze the mineral elements of different maize cultivars in the hope of providing theoretical basis for improving the nutrition quality and processing quality of maize cultivars of Xinjiang. 【Method】 In this study, 23 samples of maize cultivars in Xinjiang were collected, and the contents of five elements including calcium, iron, zinc, magnesium and phosphorus were analyzed by Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) method, and the principal component analysis and correlation analysis were conducted with SPSS software. 【Result】 The results showed that the content of calcium, iron, zinc, magnesium and phosphorus were 8.22-17.15 mg/100g, 0.36-1.29 mg/100g, 0.84-1.95 mg/100g, 92.65-138.26 mg/100g and 158.91-282.71 mg/100g, respectively. 【Conclusion】 Comprehensive analysis results indicated that the quality of 23 maize cultivars was different: the order from high to low, Denghai 8883>Xinyu 54> Xinyu 9>2564> Xinyu 47> Xinyu 80> Xinyu 87> Xinyu 84 > Xinyu 41 >3376>Nongrun 919> KX9384>Heyu 187> Xinyu 60> M753> Xinyu 74 > Xinyu 59> Xinyu 29>9384>335> Xinyu 77> Xinyu 13> Xinyu 65.