Gas Chromatographic-Ion Mobility Spectrometry Combined with Chemometrics to Study the Changes in Characteristic Odor Components of Galli gigerii Endothelium Corneum in Different Processing Methods

Table 1

Sample preparation methods.

Names	Sample powder	Preparation methods
SP		Unprocessed GGEC
QC		Weigh 100 g of SP, heat the pan over low heat until the temperature is 150°C, add SP, fry until it bulges, remove, and let it cool
ST		Weigh 100 g of SP and 3 kg of river sand, put the river sand in a pot, stir-fry until the temperature is 250°C, add SP, stir-fry for 80 s and then remove it quickly, sieve the sand, and let it cool
CZ		Weigh 100 g of SP and 15 g of vinegar, heat the pot with low heat to 150°C, put SP, fry until it bulges, spray vinegar, take out, and dry
FH		Weigh 100 g of SP and 15 g of milk, heat the pot over moderate heat until the temperature is 150°C, add SP, fry until it bulges, spray milk, remove, and dry