Analytical Instrument Documents

In this MSTips, we report on the measurement of aroma components in red wine using GC-O-TOFMS with headspace solid-phase microextraction (HS-SPME), along with the analysis results obtained using msFineAnalysis AI.

The two-stage thermal desorption system provides high analytical sensitivity. These methods are used in a wide range of fields such as food, fibers, plastics and wood products because of their ability to collect volatile compounds efficiently (MSTips No. 435, 436, 459). In this report, we show the useful analysis results of soy meat aroma compounds using this method.

One of the challenges of plant-based meat alternatives is replicating the flavor of animal-based meat, and aroma plays a significant role in that flavor. In particular, reducing the beany odor is a challenge in soy-based meat products, and it is important to identify the trace compounds responsible for this odor in the aroma components of the samples. Thermal desorption (TD)-GC-MS is an analytical method used for analyzing food aroma components. Although the method enables highly sensitive and comprehensive analysis of aroma compounds in samples, searching for specific target compounds among the many detected components can be time-consuming.

Pyrazines are known as key aroma compounds that characterize the roasted aroma of Hojicha, and in recent years, they have attracted attention for their potential health benefits. Thermal desorption (TD)-GC-MS is an analytical method used for analyzing food aroma components. Although the method enables highly sensitive and comprehensive analysis of aroma compounds in samples, searching for specific target compounds among the many detected components can be time-consuming.

In this study, we report a comparative analysis of dioxin analysis by hydrogen carrier gas with helium carrier gas using GC/MS/MS “JMS-TQ4000GC UltraQuad™ TQ” (Figure 1).

We measured commercially available Japanese curry roux, which is composed of various ingredients and extracts, such as spices, meat, and vegetables, and is thought to have a complex aroma component. Volatile components extracted by headspace solid phase microextraction (HS-SPME) were measured using GCxGC-TOFMS, and the results of analysis using msFineAnalysis AI are reported.

The qualitative analysis software msFineAnalysis AI enables automatic structure analysis of unknown compounds not registered in libraries through EI/SI integrated analysis and AI structure analysis. Ver. 3 newly supports comprehensive 2D GC (GCxGC) data analysis.

This MSTips introduces the usefulness of AI structure analysis using polymer pyrolysis analysis. Figure 1 shows a schematic diagram of pyrolysis (Py)-GCxGC-MS.

This MSTips introduces technique for comparing samples and identifying differential peaks using 2D chromatograms, using pyrolysis oil analysis. Pyrolysis oil is derived from discarded plastics and rubber products. It is used as an alternative fuel to petroleum and as a raw material for recycled plastics, making it one of the key technologies contributing to the circular economy.

In this MSTips, non-targeted measurements of metabolites in mouse feces were performed using GC-TOFMS, followed by data analysis using msFineAnalysis AI.