顶空-固相微萃取和同时蒸馏萃取法提取肉桂的挥发性成分
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(福州大学食品科学技术研究所 福建省食品生物技术创新技术研究中心 福州 350108)

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国家自然科学基金促进海峡两岸科技合作联合基金项目(U2005209);“十三五”国家重点研发计划项目(No. 2016YFD0400801)


Extraction of Volatile Components of Rougui Tea Using the Headspace-Solid-Phase Microextraction and Simultaneous Distillation Extraction
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(Institute of Food Science and Technology, Fuzhou University, Fujian Innovation Engineering Technology Research Center for Food Biotechnology, Fuzhou 350108)

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    摘要:

    挥发性成分的提取方法对分析武夷肉桂香气成分具有重要影响。本文比较顶空固相微萃取法(HS-SPME)和同时蒸馏萃取法(SDE)提取武夷肉桂的挥发性成分的的差异,采用气相色谱-质谱联用技术(GC-MS)表征其挥发性成分。首先优化HS-SPME的萃取条件,其最优萃取条件为:50/30 μm DVB/CAR/PDMS萃取纤维,萃取温度50 ℃,萃取时间50 min,NaCl添加量30%。在此条件下共检出84种挥发性成分;再通过SDE法提取到40种挥发性成分,两种方法共同检出的成分有26种,对酯类的萃取效率相当。HS-SPME在提取杂环类化合物、中、低沸点脂肪族醇类、烯烃类、酮类的效率高于SDE;而SDE更有利于萃取沸点较高的醇类、酸类和酚类等成分。结论:分析武夷肉桂的香气成分应结合HS-SPME和SDE两种方法。

    Abstract:

    The volatile components extraction method is critical for the analysis of aroma components of Wuyi Rougui tea. In this study, the volatiles of Wuyi Rougui tea infusion were first extracted by two commonly used extraction methods, namely, headspace-solid-phase microextraction (HS-SPME) and simultaneous distillation extraction (SDE),and then qualitatively and quantitatively analyzed by GC-MS. The extraction conditions of HS-SPME were optimized and the optimal conditions were as follows: 50/30 μm DVB/CAR/PDMS fibers, 50 ℃ extraction temperature, 50 min extraction time,30% NaCl addition. With this optimal condition, a total of 84 volatile compounds were extracted by HS-SPME, and 40 volatile compounds were extracted by SDE. Of these volatiles, 26 components were detected by both methods. Both extraction methods demonstrated comparable extraction efficiency for esters. HS-SPME showed better extraction efficiency for heterocyclic volatile compounds, aliphatic alcohols with medium to low boiling point, alkanes and ketones, whereas SDE showed better extraction efficiency for alcohols, acids, and phenols of high volatility. The conclusion is thatthe combination of HS-SPME and SDE methods should be used to analyze the aroma components of Rougui tea.

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詹思佳,苏蔚莹,王道梁,陈文嵩,兰晓晔,孙雅倩,刘志彬,倪莉.顶空-固相微萃取和同时蒸馏萃取法提取肉桂的挥发性成分[J].中国食品学报,2022,22(12):181-190

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  • 收稿日期:2021-12-22
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  • 在线发布日期: 2023-01-09
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