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Analysis of Volatile Components and Identification of Key Aroma Compounds in Essential Oils of Pomelo Peels from Different Varieties
Received:November 20, 2025  Revised:December 10, 2025
DOI：10.11981/j.issn.1000-6842.2026.02.106
Key Words:essential oil of pomelo peel;volatile components;relative odor activity value;key aroma compounds;thermogravimetric-mass spectrometry
Fund Project:国家自然科学基金（22308285）；陕西中烟工业有限责任公司重点科技项目（BA000-ZB24015）；咸阳市重大技术攻关专项（L2025-ZDKJ-ZDGG-XCL001）。
Author NameAffiliationPostcode
TIAN Yunheng* 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
HUO Zhaomei 2College of Pharmaceutical Sciences， Southwest University， Chongqing， 400715 400715
WANG Fang 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
LIU Zhenyu 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
WANG Ying 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
LI Xiaobin 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
SONG Shixi 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
LI Fulin 2College of Pharmaceutical Sciences， Southwest University， Chongqing， 400715 400715
JIA Fengfeng 3College of Bioresources Chemical and Materials Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
WANG Yonghong* 1Technology Center， China Tobacco Shaanxi Industrial Co.， Ltd.， Xi’an， Shaanxi Province， 710000 710000
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Abstract:
      In this study， essential oils of pomelo peels suitable for the production of fragranced specialty paper were extracted by steam distillation from six representative pomelo varieties， and a systematic analysis was conducted on their volatile components， key aroma compounds， and pyrolysis behavior. The results showed that 52 volatile components of the essential oils of pomelo peels were identified， with monoterpenes being the most abundant (22.5%~92.8%). The sensory evaluation of essential oil processed cigarettes indicated that fruity and sweet aromas were most prominent of essential oil of Liangping pomelo peel. The relative odor activity value (ROAV) analysis identified that nootkatone (ROAV=100) and D-limonene (ROAV=2.175) were the key aroma compounds of essential oil of Liangping pomelo peel， whereas the essential oils of Fengdu red pomelo peel and Long’an pomelo peel showed poor aroma quality due to high levels of oxidized limonene (7.4%~11.9%) and the absence of nootkatone. In addition， the pyrolysis of essential oil of Liangping pomelo peel was more complete (residue rate of 11.7%) and released characteristic flavor compounds derived from nootkatone， while the pyrolysis residue rate of essential oil of Fengdu red pomelo peel reached 65.7%. The suitable ratio of D-limonene to nootkatone (26.10) was key to the superior flavor quality of essential oil of Liangping pomelo peel.
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