نتایج جستجو برای: ultrasound microwave supercritical fluid soxhlet
تعداد نتایج: 384203 فیلتر نتایج به سال:
• Three biorefineries are modelled, focusing on the rutin extraction from asparagus waste. The environmentally compared with Life Cycle Assessment methodology. pressurized liquid-based scenario reports best environmental profile. Energy consumption is responsible for largest contributions to burdens. Sensitivity analysis performed considering different allocation and agents. Rutin a flavonol gl...
Extractions of a polycyclic aromatic hydrocarbon (PAH)-contaminated soil from a former manufactured gas plant site were performed with a Soxhlet apparatus (18 h), by pressurized liquid extraction (PLE) (50 min at 100 degrees C), supercritical fluid extraction (SFE) (1 h at 150 degrees C with pure CO2), and subcritical water (1 h at 250 degrees C, or 30 min at 300 degrees C). Although minor diff...
Determination of residual natural waxes and processing lubricants on yarns and fabrics has traditionally been accomplished by Soxhlet extraction with an organic solvent. A variety of concerns about these solvents has driven a search for alternative methods. Hydrocarbon solvents; e.g., petroleum ether, are flammable and the manufacture of chlorofluorocarbon solvents was phased out in 1996 as a r...
Chinese quince seed (CQS) is an underutilized oil source and a potential source of unsaturated fatty acids and α-tocopherol-rich oil. Subcritical fluid (SCF) extraction is executed at lower pressures and temperatures than the pressures and temperatures used in supercritical fluid extraction. However, no studies on the SCF extraction of CQS oil are reported. Therefore, the objective of this stud...
Deoxypodophyllotoxin is present in the roots of Anthriscus sylvestris. This compound is cytotoxic on its own, but it can also be converted into podophyllotoxin, which is in high demand as a precursor for the important anticancer drugs etoposide and teniposide. In this study, deoxypodophyllotoxin is extracted from A. sylvestris roots by supercritical carbon dioxide extraction. The process is sim...
Tea (Camellia sinensis) is the most widely consumed beverage in world, with an excellent source of bioactive compounds such as catechins, caffeine, and epigallocatechin. There increasing trend to extract these deliver them value-added products. Generally, extraction polyphenols other functional from different parts tea carried out using solvents (e.g., water, water–ethanol, ethanol, methanol, a...
The bioactive components of malacca (Emblica officinalis), which consist phenolic, alkaloids, phytosterols, organic acids, and vitamins, are valuable for human health. T he yield quality the in extract highly depend on extraction technique, so it is essential to know development research techniques fruit. In addition, have limitations their application due stability, solubility, absorption, bio...
Fruit residues (peel, seed, and pulp residues) have in their composition several compounds such as polyphenols, carotenoids, fibres, lipids which, due to functional properties, these make them potential sources of natural additives. The great technological challenge is use the most suitable techniques for extracting compounds. In this paper, definitions, advantages, disadvantages conventional (...
Consumers demand for functional foods and nutraceutical is increasing owing to their health endorsing properties. Natural bioactive compounds are getting attention due promoting potential. In addition, the extraction of these a significant industrial technological perspectives. These moieties can be extracted via various conventional modern methods. For instance; solid-phase extraction, micro-e...
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