Search results for "Extraction"
showing 10 items of 2072 documents
HPTLC fingerprinting—rapid method for the differentiation of honeys of different botanical origin based on the composition of the lipophilic fractions
2018
Bee honey possess various nutritional and medicinal functions, which are the result of its diverse chemical composition. The numerous bioactive compounds in honey come from flower nectar
Effect of different processing methods on the quality of obtained pomegranate juice
2019
Pomegranate juice has many health properties as the fruits contain anticarcinogenic, antimicrobial and antiviral compounds. Its consumption has greatly increased throughout the world in recent years due to the potential of its different components, polyphenols and anthocyanins mostly. Many studies have been performed on the pomegranate juice yield demonstrating its influence on the organoleptic and physicochemical properties of the juice. Commercial pomegranate juice production involves pressing the fruits. As a consequence, there is a need to investigate the pressing machine types and adjustment in order to maximize juice yield and enhance its health properties. The aim of this study was t…
A SELECTIVE EXTRACTION OF ANTHOCYANINS FROM EGGPLANT PEEL
2007
Species-Specific Antioxidant Power and Bioactive Properties of the Extracts Obtained from Wild Mediterranean Calendula Spp. (Asteraceae)
2019
In this study we focused on four taxa of the genus Calendula (C. maritima, C. suffruticosa subsp. fulgida, C. arvensis, and the hybrid between the first two ones), collected in Mediterranean area (Sicily). Six extracts for each species were obtained using solvents with increasing polarity (hexane, ethanol 80%, acetone 70%, and water) and through extraction by supercritical fluids (SFE). It has been observed that the solvent with the highest extraction efficiency was ethanol 80% for all species. However, SFE extracts showed high antioxidant activity comparable to the ethanol 80% extract (polyphenol, DPPH, and reducing power method). These findings were confirmed by in vitro analysis (MTT ass…
Biologically active organic compounds, especially plant promoters, in algae extracts and their potential application in plant cultivation
2015
Scientific efforts taken during the past decades undoubtedly have proven that algae are organisms wealthy in various chemical substances such as carbohydrates, proteins, and minerals, as well as polysaccharides, polyphenols, phlorotannins, pigments, unsaturated fats, sterols, and of course growth promoting substances like phytohormones. It is noteworthy that among the many biologically active compounds obtained from seaweeds, plant hormones seem to be the most essential for enhancing the growth and development of crop plants. This fact is well reflected in over 60 years of the long history of controlled application of algae origin products as natural fertilizers in crop production. Neverthe…
Application of a Knowledge Discovery Process to Study Instances of Capacitated Vehicle Routing Problems
2020
Vehicle Routing Problems (VRP) are computationally challenging, constrained optimization problems, which have central role in logistics management. Usually different solvers are being developed and applied for different kind of problems. However, if descriptive and general features could be extracted to describe such problems and their solution attempts, then one could apply data mining and machine learning methods in order to discover general knowledge on such problems. The aim then would be to improve understanding of the most important characteristics of VRPs from both efficient solution and utilization points of view. The purpose of this article is to address these challenges by proposi…
Omega-3 Extraction from Anchovy Fillet Leftovers with Limonene: Chemical, Economic, and Technical Aspects
2019
International audience; We investigate selected chemical, technical, and economic aspects of the production of fish oil rich in polyunsaturated omega-3 fatty acids from anchovy filleting leftovers using d-limonene as the extraction solvent at ambient temperature and pressure. Entirely derived from the orange peel prior to orange squeezing for juice production, the bio-based solvent is easily recovered, affording a circular economy process with significant potential for practical applications.
Evaluation of biological properties of extracts obtained from marine biomass assisted by pulsed electric fields (PEF) and pressurized liquid extracti…
2022
Teniendo en cuenta el gran interés por la biodiversidad, los recursos marinos representan una fuente importante de compuestos de alto valor añadido como proteínas y péptidos bioactivos, lípidos y ácido grados vitaminas, minerales y compuestos bioactivos, etc. Los residuos y subproductos del pescado como cabeza, vísceras y piel, entre otros, se descartan o no se utilizan de manera efectiva durante el procesamiento de los alimentos, lo que resulta en un gran desperdicio de recursos, sin embargo, son una gran fuente de compuestos con alto valor añadido y que pueden tener un potencial uso considerable en las industrias alimentaria, farmacéutica, cosmética y otras, existiendo, por lo tanto, un i…
Isolation of organophosphorus-degrading bacteria from agricultural mediterranean soils
2010
Assessment of the mobility of selected elements in bioleached mining waste from Zloty Stok (Poland)
2017
Different bioleaching processes were applied to mining wastes deposited in the highly polluted post-industrial region - Lower Silesia in Poland. The chemical characterization of the wastes before and after bioleaching processes was performed. The characterisation was based on the distribution of selected elements (Fe, Mn, As, Co, Cr, Cu and Ni) between operationally-defined phases. The phases were defined using a six-step extraction procedure optimised according to the properties of the studied mining wastes. The fractionation and total content of elements in wastes before and after various bioleaching treatments were studied using ICP MS (Inductively Coupled Plasma Mass Spectrometry)and FA…