数字农科院2.0

GC-IMS determination of volatile organic compounds as potential indicators of wheat germination rate

文献类型： 外文期刊

作者： Liu Y.;Ren S.;Sun Q.;Guo B.;Zhang Y.;Li M.;Zhang R.

作者机构：

关键词： Gas chromatography-ion mobility spectrometry (GC-IMS);Germination rate;Predictive model;Volatile organic compounds (VOCs);Wheat storage

期刊名称： Food Bioscience

ISSN： 2212-4292

年卷期： 2024 年 57 卷

页码：

收录情况： SCIE（2024版） ; ; 农林核心（2020版）

摘要： The objective of this research was to investigate the correlation between volatile organic compounds (VOCs) and the germination rate of stored wheat, as well as to identify the potential markers for predicting the germination rate. The findings of this study are expected to contribute to the advancement of a non-destructive and rapid method for evaluating the quality of wheat storage, thereby establishing a theoretical foundation for further research in this area. Gas chromatography-ion mobility spectrometry (GC-IMS) was utilized to analyze the VOCs of wheat samples subjected to accelerated storage condition at 40 °C, RH 65%, as well as natural storage condition at room temperature. A total of 68 and 79 VOCs were detected under accelerated and natural storage conditions, respectively. The germination rate of wheat was found to decreased significantly with prolonged storage time under both storage conditions. Principal component analysis (PCA) and hierarchical cluster analysis (HCA) were utilized to differentiate wheat samples stored for varying durations. Furthermore, correlation analysis revealed that 31 VOCs exhibited a significant correlation (p < 0.05) with the germination rate. Through multiple linear stepwise regression analysis, four VOCs—namely isoamyl butyrate, (Z)-3-nonen-1-ol, 1-propanol, and Propanal—were identified as potential markers. Subsequently, a prediction model was constructed using these markers. The results of this study demonstrate that these VOCs can serve as indicators for predicting the germination rate, thus facilitating the evaluation of the germination ability and quality of stored wheat. This research holds implications for enhancing the efficiency of wheat storage management and ensuring food security. © 2023 Elsevier Ltd

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