Objective: To detect aroma characteristics of Aromi Fructus from different originsby using electronic nose combined with automatic headspace-gas chromatography-mass spectrometry (HS-GC-MS)in two aspects

namely overall aroma profile and specific aroma composition

in order to study material basis of Aromi Fructus's odors. Method: With Aromi Fructus of different varieties and from different origins-Guangdong

Yunnan

Burma

Vietnam and Laos as a research subject

the volatile components were detected by using electronic nose and HS-GC-MS technique.A bioplot was used to analyze the correlation among samples

E-nose gas sensors and chemical volatile compounds. Result: E-nose showed a good differentiation of Aromi Fructus from different origins

with the identification index of 83.9%.Homebred Amomum villosum was classified in class A

and imported Aromi Fructus was classified in class A.A total of 70 volatile components were identified by HS-GC-MS

including terpenes

esters

alcohols

ketone and alkane.Aromi Fructus of different varieties and from different origins have different composition and content

with the same classification with the results of E-nose.A bioplot of PLS displayed the high correlation between sensors s14

s8/s6/s3 and terpenes

esters and alcohols indicating that special sensors were highly correlated with some aroma constituents. Conclusion: Advanced chemometrics and E-nose are used to discriminate Aromi Fructus from different origins.By combining with HS-GC-MS technique

this study provides further experimental evidence for material bases of Aromi Fructus's odors.