基于GC-IMS和PCA的中国辛菜发酵过程中风味物质变化的分析
Wenkui Guo1, Meiru Cheng1, Xuemei Dong1
1Key Laboratory of Dairy Sciences, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China.
Food research international (Ottawa, Ont.)
|August 15, 2024
概括
在4°C的中国辛菜 (CSC) 的低温发酵是最优的. 这种方法增强了风味特征,正如主要成分分析 (PCA) 和气色谱-离子运动谱法 (GC-IMS) 分析挥发性化合物所证实的那样.
科学领域:
- 食品科学 食品科学 食品科学
- 发酵技术的发酵技术
- 分析化学 分析化学
背景情况:
- 中国辛菜 (CSC) 发酵涉及复杂的生化变化.
- 温度显著影响CSC发酵过程中的微生物活动和挥发性化合物产生.
- 了解风味的发展对于优化CSC质量至关重要.
研究的目的:
- 研究不同发酵温度对CSC的挥发性概况的影响.
- 为了确定有助于CSC风味的关键挥发性化合物.
- 建立一种基于发酵温度区分CSC样品的方法.
主要方法:
- 气色谱-离子流动性光谱法 (GC-IMS) 用于检测和量化挥发性化合物.
- 主要组件分析 (PCA) 用于分析复杂的挥发性数据.
- 在整个发酵过程中监测pH值和有机酸含量.
主要成果:
- 共有49种挥发性化合物被确定,包括化物,酒精,和.
- 发酵导致pH值下降,有机酸增加.
- PCA有效地区分了在不同温度下发酵的CSC样品,表明了不同的风味配置文件.
- 低温发酵 (4°C) 产生了最佳的风味特征.
结论:
- 发酵温度显著影响CSC的挥发性成分和风味.
- 与PCA相结合的GC-IMS提供了一个强大的方法来表征CSC风味指纹.
- 建议在4°C下进行低温发酵和储存,以生产高质量的CSC.
更多相关视频
05:29Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry
Published on: June 9, 2021
3.8K
04:36Author Spotlight: Exploring Tea Aroma Using Solvent-Assisted Flavor Evaporation Technique
Published on: May 26, 2023
3.1K
相关概念视频
Gas Chromatography–Mass Spectrometry (GC–MS)
4.1K
Gas chromatography–mass spectrometry (GC–MS) is the combination of analytical techniques of gas chromatography and mass spectrometry in a single instrument for analyzing a mixture of compounds. The gas chromatograph separates the compounds in the mixture, and the mass spectrometer analyzes each compound separately to determine the molecular masses and molecular structures.
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall....
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall....
4.1K
Supercritical Fluid Chromatography
219
Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
SFC utilizes a supercritical fluid mobile phase,...
SFC utilizes a supercritical fluid mobile phase,...
219
