Verification of Aroma Profiles of Jiashi Muskmelon Juice Characterized by Odor Activity Value and Gas Chromatography鈥揙lfactometry/Detection Frequency Analysis: Aroma Reconstitution Experiments and Omi
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- 作者：Xueli Pang ; Dong Chen ; Xiaosong Hu ; Yan Zhang ; Jihong Wu
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2012
- 出版时间：October 24, 2012
- 年：2012
- 卷：60
- 期：42
- 页码：10426-10432
- 全文大小：251K
- 年卷期：v.60,no.42(October 24, 2012)
- ISSN：1520-5118
文摘
To verify the aroma profile of Jiashi muskmelon previously identified by gas chromatography鈥搊lfactometry/detection frequency analysis (GC-O/DFA) and odor activity value (OAV) calculation, the synthetic blends of odorants (aroma models) were prepared and then were compared with the original Jiashi muskmelon juice aroma using quantitative descriptive analysis (QDA) and electronic nose analysis (ENA), respectively. QDA and ENA both indicated that the model solution derived from OAV calculation more closely resembled the original melon juice aroma than that based on DFA data. Omission tests corroborated the significant contribution of five unsaturated aldehydes and alcohols with nine carbon atoms as well as five branched esters, in particular, the 鈥渇ruity鈥?smelling ethyl butanoate and the 鈥渃ucumber-like鈥?(2E,6Z)-nona-2,6-dienal to Jiashi muskmelon overall aroma.