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Showing 1 to 14 of 14 for “"microwave assisted extraction"”.
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Microwave-Assisted Extraction for the Isolation of Trace Systemic Fungicides from Woody Plant Material
The extraction and recovery of trace organic material from semi-solid and solid matrices is often the slowest and most error-prone step of an analytical method. The conventional liquid extraction techniques for solids and semi-solids materials (Soxhlet) have two main disadvantages. The first, large …
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Exploratory studies in the use of microwave radiation to assist the extraction of pollutants from various matrices.
The microwave assisted extraction of organic contaminants from heterogeneous environmental solids was investigated. The mechanisms for the interaction of a microwave field with matter, and the basic equipment used in microwave processing are presented. It was found that water content is the most …
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Comparative extraction techniques for environmental pollutants
… Organics, will be evaluated by both Soxhlet and microwave-assisted extraction (MAE) for two classifications of compounds. The common procedure for sample preparation of solids is Soxhlet extraction. This is a lengthy operation and uses abundant solvent volumes. With ever changing times, the new …
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The Analysis of Flavor Compounds in Green Tea Using Ice Concentration Linked with Extractive Stirrer (Icecles)
… difficult steps in this type of analysis. Many extraction techniques have been used for this purpose, such as liquid-liquid extraction (LLE), accelerated solvent extraction (ASE), microwave-assisted extraction (MAE), solid-phase extraction (SPE), solid-phase microextraction (SPME), and stir bar …
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Sample Preparation/Concentration for Trace Analysis in GC/MS (A study of solid phase microextraction and headspace sampling)
Solid Phase Microextraction (SPME) associated with Microwave Assisted Extraction (MAE)<sup>(1-3)</sup> , on-line headspace derivatization <sup>(4-6)</sup> and the selectivity of different SPME coatings <sup>(7)</sup> were studied. Trace amounts of Veltol ®, Veltol Plus® and short chain fatty acids …
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A ¿GREEN PATH¿ STRATEGY FOR COMPLETE RECOVERY OF BUCKWHEAT PROCESSING BYPRODUCTS
… can be summarized as follows: 1. A green extraction approach - based on microwave-assisted extraction (MAE)- was set up to improve recovery of the phenolics from buckwheat husk. The protocol developed here increased by 43.6% the polyphenols recovery compared to conventional techniques. 2. …
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Wax extraction and characterization from full-fat and defatted rice bran
… using 6 different conditions with Soxhlet and Microwave-assisted extraction (MAE). The compositions of WEs from RBO and RBW were also compared. RBW was obtained from RBO by winterization and solvent fractionation. WEs were separated by chromatographic methods, and analyzed as intact WE using a …
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Fast GC: Applications and Theoretical Studies
… was seen above programming rates of 240° C/min. Microwave assisted extraction (MAE) was used to extract 2,6-di-(tert-butyl)-4-methylphenol, BHT, from chewing gum and breakfast cereal. The extraction was followed by a fast GC analysis (less than 4 minutes) using "flash"â ¢ temperature programming. …
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Medicinal Chemistry of Cannabis and Cannabinoids
… large study settings. Through pilot experiments, extraction protocols for the optimal recovery of cannabinoids from different types of cannabis plant material were investigated and the diverse phytochemistry of cannabis was revealed through extensive chemical profiling, reiterating the need for …
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Optimizing the Extraction of Phenolic Antioxidant Compounds from Peanut Skins
… properties. The effects of two types of extraction methods: solid-liquid extraction (SLE) and microwave-assisted extraction (MAE) on the recovery of phenolic compounds from peanut skins were investigated. Response surface methodology was used to optimize extraction conditions based on …
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Extraction of Algal Pigments and Their Encapsulation in Lyotropic Liquid Crystalline Nanoparticles for Anticancer Applications
… of valuable bioactive compounds. Modern green extraction techniques, such as microwave-assisted extraction (MAE), allow for highly efficient isolation of natural products with low energy and solvent input, supporting their environmental friendliness. The management of invasive species biomass …
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Lichens as biomonitors for atmospheric polycyclic aromatic hydrocarbons
… preparation techniques explored (ultrasound assisted extraction, Soxhlet and microwave assisted extraction). Statistical analysis confirmed that QuEChERS performed significantly better than the other sample preparation techniques. The optimized sample preparation technique met the study’s …
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Exploitation of agricultural and forestry waste: from the recovery of bioactive compounds for nutraceutical applications to the production of innovative materials
… adopted to optimize entirely eco-sustainable microwave-assisted extraction (MAE) protocols. The optimized shell extracts exhibited the highest total phenolic content (TPC) and antioxidant/antiradical activity. Furthermore, in this thesis, MAE method was applied for the first time to recover …
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Exploitation of agricultural and food wastes: from the recovery of bioactive compounds for nutraceutical applications to the production of innovative materials [Valorizzazione di scarti agricoli ed alimentari: dal recupero di composti bioattivi per applicazioni nutraceutiche alla produzione di materiali innovativi]
Le industrie agroalimentari generano un’ingente quantità di rifiuti che, rimanendo insufficientemente sfruttati, comportano problematiche ambientali, economiche e sociali. I gusci delle specie Pistacia vera, Prunus dulcis, Corylus avellana e Juglans regia rappresentano i sottoprodotti più …