Abstract:An improved method for essential oil extraction was developed with the application of ohmic heated hydro distillation. In this study the parameters affecting citronella oil extraction by ohmic heated hydro distillation such as power input, extraction time, solvent to solid ratio and chopping frequency were investigated to achieve maximum oil yield. The kinetics of extraction was assumed and verified based on a second-order mechanism. The initial extraction rate, the saturated extraction capacity and the rate c… Show more
“…The 10 constituents that were identified in CEO and NEO were determined to represent approximately 87.7 % and 87.0 % of their total composition, respectively. The most abundant constituents in the CEO were citronellal (33.9 %), geraniol (20.3 %), and citronellol (12.0 %), which is consistent with previous reports [13] . These three constituents have been reported to possess anti‐inflammatory and redox‐protective activities [14] .…”
Section: Resultssupporting
confidence: 89%
“…The most abundant constituents in the CEO were citronellal (33.9 %), geraniol (20.3 %), and citronellol (12.0 %), which is consistent with previous reports. [13] These three constituents have been reported to possess anti-inflammatory and redox-protective activities. [14] Alternatively, the most abundant constituents in NEO were characterized as α-Pinene (32.3 %), α-Terpineol (19.4 %), and Linalool (11.8 %), which have been previously reported to exhibit a varied range of biological activities, including antioxidant, anti-inflammatory, antimicrobial, and anticancer effects.…”
Section: Chemical Compositions Of Ceo and Neomentioning
Citronella and Nutmeg are two common spices used for seasoning and medicinal purposes, both of which have significant economic value. This study aimed to investigate whether Citronella essential oil and Nutmeg essential oil (NEO) can ameliorate monosodium urate (MSU)‐induced gouty arthritis in rats and the potential mechanisms. The results showed that CEO and NEO reduced swelling and redness at joint sites, inhibited neutrophil infiltration, and limited proinflammatory mediator secretion in mice with MSU‐induced gouty arthritis. Based on the results of network pharmacology, molecular docking, and western blotting, CEO and NEO may exert anti‐gouty arthritis effects by reducing the expression of reactive oxygen species and oxidative stress and downregulating the phosphorylation of the PI3K/AKT/mTOR signaling pathway, thereby inhibiting the production of the NLRP3 inflammasome and inhibiting the production of inflammatory cytokines. Therefore, these two essential oils show potential for use as adjuvant treatments for gouty arthritis in specific aromatherapy products or food seasonings.
“…The 10 constituents that were identified in CEO and NEO were determined to represent approximately 87.7 % and 87.0 % of their total composition, respectively. The most abundant constituents in the CEO were citronellal (33.9 %), geraniol (20.3 %), and citronellol (12.0 %), which is consistent with previous reports [13] . These three constituents have been reported to possess anti‐inflammatory and redox‐protective activities [14] .…”
Section: Resultssupporting
confidence: 89%
“…The most abundant constituents in the CEO were citronellal (33.9 %), geraniol (20.3 %), and citronellol (12.0 %), which is consistent with previous reports. [13] These three constituents have been reported to possess anti-inflammatory and redox-protective activities. [14] Alternatively, the most abundant constituents in NEO were characterized as α-Pinene (32.3 %), α-Terpineol (19.4 %), and Linalool (11.8 %), which have been previously reported to exhibit a varied range of biological activities, including antioxidant, anti-inflammatory, antimicrobial, and anticancer effects.…”
Section: Chemical Compositions Of Ceo and Neomentioning
Citronella and Nutmeg are two common spices used for seasoning and medicinal purposes, both of which have significant economic value. This study aimed to investigate whether Citronella essential oil and Nutmeg essential oil (NEO) can ameliorate monosodium urate (MSU)‐induced gouty arthritis in rats and the potential mechanisms. The results showed that CEO and NEO reduced swelling and redness at joint sites, inhibited neutrophil infiltration, and limited proinflammatory mediator secretion in mice with MSU‐induced gouty arthritis. Based on the results of network pharmacology, molecular docking, and western blotting, CEO and NEO may exert anti‐gouty arthritis effects by reducing the expression of reactive oxygen species and oxidative stress and downregulating the phosphorylation of the PI3K/AKT/mTOR signaling pathway, thereby inhibiting the production of the NLRP3 inflammasome and inhibiting the production of inflammatory cytokines. Therefore, these two essential oils show potential for use as adjuvant treatments for gouty arthritis in specific aromatherapy products or food seasonings.
“…The initial extraction rate, h, the extraction capacity, C s and the pseudo second order extraction rate constant, k, can be calculated experimentally by plotting t=C t versus t in Eq. (15) [74].…”
This chapter deals with the kinetics of solvent extraction of oil from Amaranth, as well as the thermodynamics of the extraction process. Brief introduction of Amaranth and Amaranth oil yields and compositions were given. The justifications of the choice of extraction method, as well as the solvent used in the kinetics and thermodynamic studies, were discussed. Known kinetic models used to model vegetable oils extraction process, were discussed, with the view of evaluating the feasibility of fitting the obtained experimental data into the models. The extraction kinetic models considered are the parabolic diffusion, power law, hyperbolic, Elovich's and pseudo second order models. The thermodynamics of oil extraction process were also considered. Hence, the thermodynamic parameters, enthalpy, entropy and Gibb's free energy change of the process were also discussed.
“…Various models of solid liquid extraction process have been desrcibed 12,13 . Garkal et al 13 shows, in the study of the mechanisms and kinetics in the extraction process of eugenol from leaves of Ocimum Sanctum Linn (Tulsi), that a model based on a second-order extraction kinetics was the most suitable model for a solid-liquid extraction process.…”
The drugs traditionally used to treat uncomplicated malaria have become ineffective, due to the development of drug resistance. It has led to a widespread promotion of artemisinin-based combination therapy (ACT) as a strategy for effective management of Plasmodium falciparum malaria. The main drawback of the ACTs is their high cost. Hence, many phytoconstituents are currently investigated for their antimalarial activity. One of them is andrographolide of Andrographis paniculata (Burm.f.) Wall. A combination of microwave assisted-extraction and the utilization of hydrotrope as the extraction medium is already proved as a potential safe alternative for the separation of andrographolide. Mathematical models of extraction plays a crucial role in basic research of phytoconstituent separation; they are not yet available for hydrotropic-microwave assisted extraction of andrographolide. Therefore, there is a need to conduct a scientific study in this field. The mathematical model is a useful engineering tool for equipment optimization, simulation, design and control, allowing theoretical description of the process and evaluation of the kinetic constant. The aim of this work was to model the kinetics of hydrotropic-microwave assisted extraction of andrographolide. The kinetics of hydrotropic-microwave assisted extraction of andrographolide was studied for two different powers of the microwave extractor (10 % and 30 %). A second order kinetic model describes the solid liquid extraction process of andrographolide from Andrographis paniculata (Burm.f.) Wall.
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