Results 121 to 130 of about 237,313 (264)
Supercritical Fluid Extraction of Pyrrolidine Alkaloid from Leaves of Piper amalago L.
Evidence-Based Complementary and Alternative Medicine, 2017 Supercritical fluid extraction was used to extract the alkaloid N-[7-(3′,4′-methylenedioxyphenyl)-2(Z),4(Z)-heptadienoyl]pyrrolidine from leaves of Piper amalago L.
V. S. Carrara +6 more
semanticscholar +1 more source
Plastic recycling: Challenges and opportunities
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This review offers an in‐depth exploration of current strategies for recycling plastic waste, focusing on mechanical, chemical, and energy recovery methods. It situates these strategies within the context of modern practices by examining ongoing research methodologies and specific case studies related to various types of plastic waste.
Pradeep Sambyal +6 more
wiley +1 more source
Applied Sciences, 2017 Triterpene compounds like betulin, betulinic acid, erythrodiol, oleanolic acid and lupeol are known for many pharmacological effects. All these substances are found in the outer bark of birch.
Markus Armbruster +4 more
doaj +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study investigates the supercritical extraction process of essential oil from chamomile flowers. Essential oils of chamomile are used extensively for medicinal purposes. Many different chamomile products have been developed, the most popular of which is herbal tea.
Oliwer Sliczniuk, Pekka Oinas
wiley +1 more source
Extraction of Oil from Wheat Germ by Supercritical CO2
Molecules, 2009 This study examined the supercritical fluid extraction of wheat germ oil. The effects of pressure (200-300 bar at 40 °C) and extraction time on the oil quality/quantity were studied.
Bruno Marongiu +5 more
doaj +1 more source
Photooxygenation Reactions of Olefins Under Flow Conditions: An Experimental and In‐Silico Study
ChemPhotoChem, EarlyView.This study focuses on the setup and validation of the oxygenation reaction of alkenes to 1,2‐dioxetanes and hydroperoxides by a LED‐driven flow chemistry approach. An in‐silico a model was trained on reaction data that can tailor a specific chemical scope through fine‐tuning.
Giada Moroni +5 more
wiley +1 more source
AntioxidantsRice bran (RB) is a rice processing by-product recognized to be a source of bioactive compounds, including γ-oryzanol and fatty acids, which have interesting bioactivities such as antioxidant and anti-inflammatory effects. This study aims to optimize the
João P. Baixinho +6 more
doaj +1 more source
Dynamic transition in supercritical iron [PDF]
arXiv, 2014 Recent advance in understanding the supercritical state posits the existence of a new line above the critical point separating two physically distinct states of matter: rigid liquid and non-rigid gas-like fluid. The location of this line, the Frenkel line, remains unknown for important real systems. Here, we map the Frenkel line on the phase diagram of
arxiv
Supercritical CO2 in the Development of Highly Efficient Composite Cathodes for Li‐S Batteries
ChemSusChem, EarlyView.Supercritical CO₂ (SC−CO₂) offers a sustainable, scalable, and efficient alternative for Li−S battery cathode synthesis, unlocking new possibilities beyond traditional methods. As a green solvent, SC−CO₂ enables precise sulfur loading, enhanced conductivity, and excellent electrochemical performance.
Lakshmi Shiva Shankar +4 more
wiley +1 more source
Journal of Polymer Science, Volume 60, Issue 24, Page 3354-3365, 15 December 2022., 2022 Abstract Epoxidized oils are commonly used in the plastics industry as additives in the formulation of polyvinyl chloride (PVC) and as monomers in the coating industry. They are produced from petrochemical feedstocks or by chemical epoxidation of natural oils. Currently, the synthesis processes of these materials are expensive, utilize volatile organic
Mariana d'Almeida Gameiro +7 more
wiley +1 more source