gas chromatography-mass spectrometry

Effects and formula optimization of Rosa roxbunghii pomace substrate on the yield and volatile flavor compounds of Lentinula edodes

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Researchers discovered that using Rosa roxbunghii fruit waste as 30% of the growing medium for shiitake mushrooms produces better yields and more flavorful mushrooms compared to traditional sawdust-based methods. This sustainable approach solves a waste disposal problem while making mushrooms taste better, with higher levels of umami-contributing compounds. The findings could help local farmers reduce costs and improve mushroom quality while managing agricultural waste responsibly.

Characterization of the changes of aroma profiles in large-leaf yellow tea during processing using GC–MS and electronic nose analysis

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This study examined how large-leaf yellow tea develops its distinctive fried rice-like aroma during processing. Researchers identified 178 different volatile compounds throughout eight processing stages using advanced analytical techniques. The full fire roasting step was found to be most important for creating the final roasted and nutty flavors, generating 30 new nitrogen-containing compounds. An electronic nose device successfully tracked these aroma changes in real-time, suggesting it could be used for quality control in tea production.

Impact of different drying methods on the quality and flavor of two chili peppers (Capsicum annuum L.) varieties: Chemical composition and volatile compounds

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This study compared three ways to dry chili peppers and found that each method affects the peppers differently. Hot air drying at 75°C best preserved the spicy compounds and red color, making peppers more nutritious. Shade drying for 12 days created a richer, fruitier aroma with coconut-like flavors. The choice of drying method matters for getting the desired flavor and health benefits in dried chili peppers used for cooking and seasoning.

Research Topic: gas chromatography-mass spectrometry

Effects and formula optimization of Rosa roxbunghii pomace substrate on the yield and volatile flavor compounds of Lentinula edodes

Characterization of the changes of aroma profiles in large-leaf yellow tea during processing using GC–MS and electronic nose analysis

Impact of different drying methods on the quality and flavor of two chili peppers (Capsicum annuum L.) varieties: Chemical composition and volatile compounds