利用超临界流体吸附法浓缩橙皮油中的芳樟醇和α-松油醇

IF 3.4 3区 工程技术 Q2 CHEMISTRY, PHYSICAL Journal of Supercritical Fluids Pub Date : 2024-07-24 DOI:10.1016/j.supflu.2024.106354
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引用次数: 0

摘要

研究人员使用二氧化硅气凝胶作为吸附剂,在不同压力(10-24 兆帕)和温度(40-60 ºC)条件下,通过超临界流体吸附(SFA)法研究了橘皮油中含氧单萜烯(oxyterpenes)的浓度。通过动态溶解度实验获得了单萜烯类化合物在超临界 CO 中的溶解度,结果表明,无论温度如何,溶解度都会随压力的增加而增加。对于 SFA 而言,10 兆帕和 60 ºC 是浓缩土杂环萜烯的最合适条件,这使得土杂环萜烯的溶解度最低,突出了较低密度对 SFA 选择性的优势。此外,在 80-90 分钟的时间间隔内,该条件下的土杂环萜烯浓度系数最高(芳樟醇为 4.3,α-松油醇为 6.5)。这些研究结果为采用 SFA 工艺浓缩橙皮油中的萜烯类化合物提供了宝贵的见解,从而有可能提高柑橘产业中这一重要产品的市场价值和功能性。
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Concentration of the oxyterpenes linalool and α-terpineol in orange peel oil by supercritical fluid adsorption

The concentration of oxygenated monoterpenes (oxyterpenes) in orange peel oil by supercritical fluid adsorption (SFA) was investigated varying pressure (10–24 MPa) and temperature (40–60 ºC) and using silica aerogels as adsorbent. Dynamic solubility experiments were conducted to obtain the solubility of the monoterpenes in supercritical CO2, revealing that it increases with pressure regardless of temperature. For SFA, 10 MPa and 60 ºC was the most appropriate condition to concentrate oxyterpenes, leading to the lowest solubility of oxyterpenes and highlighting the advantage of lower densities for SFA’s selectivity. Furthermore, this condition yielded the highest concentration factors for oxyterpenes (4.3 for linalool and 6.5 for α-terpineol) within the 80–90 min interval. These findings contribute with valuable insights to SFA processes to concentrate oxyterpenes from orange peel oil, which has the potential to enhance the market value and functionality of this important product from citrus industries.

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来源期刊
Journal of Supercritical Fluids
Journal of Supercritical Fluids 工程技术-工程:化工
CiteScore
7.60
自引率
10.30%
发文量
236
审稿时长
56 days
期刊介绍: The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.
期刊最新文献
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