Combining with E-nose, GC-MS, GC-IMS and chemometrics to explore volatile characteristics during the different stages of Zanthoxylum bungeanum maxim fruits

• Published in: Food research international Vol. 195; p. 114964
• Main Authors: Feng, Jinze, Zhang, Beibei, Zhang, Haonan, Wu, Zichao, Li, Maoying, Wang, Dongmei, Wang, Cheng
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.11.2024
• Subjects: Chemometrics; Developmental stages; Volatile characteristics; Z. bungeanum; Volatile characteristics; Developmental stages; Z. bungeanum; Chemometrics
• ISSN: 0963-9969; 1873-7145; 1873-7145
• DOI: 10.1016/j.foodres.2024.114964

[Display omitted] •Terpenes, alcohols, esters and aldehydes were crucial VOCs of Z. bungeanum (ZB).•Combining of GC-MS and GC-IMS showed the good discrimination in VOCs characteristics.•A total of 37 VOCs with OAV or ROAV ≥ 1 was detected in ZB among five growth stages.•Six positively correlated modules were identified among five growth stages of ZB.•A total of 32 hub VOCs can be seen as the biomarkers among five growth stages of ZB. To explore the volatile characteristics of Z. bungeanum fruits during different developmental stages, the dynamical changes of volatile organic compounds (VOCs) were detected by E-nose, GC-MS and GC-IMS, respectively. The results showed that terpenes, alcohols, esters and aldehydes played the important roles in the aroma formation of Z. bungeanum. Meanwhile, these VOCs also exhibited the high abundance levels among five growth stages of Z. bungeanum. According to the analysis of odor activity value (OAV) and relative odor activity value (ROAV), 37 VOCs can be recognized as the important aroma compounds. Thereinto, β-myrcene and linalool were the most key aroma compounds. Multi-factor analysis exhibited that the combination of GC-MS and GC-IMS was a better strategy to clarify the volatile characteristics comprehensively. Using the above combined VOC datasets, six positively correlated modules and 32 hub VOCs were finally identified by weighted correlation network analysis among five growth stages of Z. bungeanum.