{"title":"Valorization of wild thyme (Thymus serpyllum L.) herbal dust by supercritical fluid extraction – Experiments and modeling","authors":"Živan Mrkonjić , Lato Pezo , Mirjana Brdar , Dušan Rakić , Ivana Lazarević Mrkonjić , Nemanja Teslić , Zoran Zeković , Branimir Pavlić","doi":"10.1016/j.jarmap.2024.100529","DOIUrl":null,"url":null,"abstract":"<div><p>The aim of this study was to develop five empirical and three mass-transfer based models for fitting the <em>T. serpyllum</em><span> SFE process. Additionally, the determination of the effect of SFE parameters (pressure, temperature, CO</span><sub>2</sub> flow rate and mean particle size) on kinetic curves and model parameters was investigated. Among the selected models, all empirical and mass-transfer models provided adequate fit with experimental data. However, mass-transfer model VIII has proved to fit the experimental results accordingly and has shown that the most influential parameters were pressure and CO<sub>2</sub> flow rate. The pressure and CO<sub>2</sub> flow rate exhibited positive effect, while the temperature had rather negative impact on Y. In addition, the initial slopes of Model VIII were calculated in order to increase the efficiency and reduce unnecessary process costs.</p></div>","PeriodicalId":15136,"journal":{"name":"Journal of Applied Research on Medicinal and Aromatic Plants","volume":"40 ","pages":"Article 100529"},"PeriodicalIF":3.8000,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Research on Medicinal and Aromatic Plants","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214786124000020","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
The aim of this study was to develop five empirical and three mass-transfer based models for fitting the T. serpyllum SFE process. Additionally, the determination of the effect of SFE parameters (pressure, temperature, CO2 flow rate and mean particle size) on kinetic curves and model parameters was investigated. Among the selected models, all empirical and mass-transfer models provided adequate fit with experimental data. However, mass-transfer model VIII has proved to fit the experimental results accordingly and has shown that the most influential parameters were pressure and CO2 flow rate. The pressure and CO2 flow rate exhibited positive effect, while the temperature had rather negative impact on Y. In addition, the initial slopes of Model VIII were calculated in order to increase the efficiency and reduce unnecessary process costs.
本研究的目的是建立五个经验模型和三个基于质量转移的模型,用于拟合蛇莓 SFE 过程。此外,还研究了 SFE 参数(压力、温度、二氧化碳流速和平均粒径)对动力学曲线和模型参数的影响。在所选模型中,所有经验模型和传质模型都与实验数据充分拟合。然而,质量传递模型 VIII 与实验结果的拟合度很高,而且表明影响最大的参数是压力和二氧化碳流速。此外,还计算了模型 VIII 的初始斜率,以提高效率和减少不必要的工艺成本。
期刊介绍:
JARMAP is a peer reviewed and multidisciplinary communication platform, covering all aspects of the raw material supply chain of medicinal and aromatic plants. JARMAP aims to improve production of tailor made commodities by addressing the various requirements of manufacturers of herbal medicines, herbal teas, seasoning herbs, food and feed supplements and cosmetics. JARMAP covers research on genetic resources, breeding, wild-collection, domestication, propagation, cultivation, phytopathology and plant protection, mechanization, conservation, processing, quality assurance, analytics and economics. JARMAP publishes reviews, original research articles and short communications related to research.