Ginger is one of the commonly used spices that has been exhibited to have pharmaceutical activities. These therapeutic properties are mainly attribute to gingerols and shogaols. To extract these bioactive compounds, subcritical water extraction (SWE) was employed as a green method. The influence of adding co-solvents, temperature, retention time and particle size on extraction yield were invest...

Abbreviations: AIBN, 2,20-azo-bis-isobutyronitrile; ASE, Accelerated solvent extraction; CAR, Carboxen; DAD, Diode-array detector; DI-SPME, Direct-immersion solid-phase extraction; DSPE, Dispersive solid-phase extraction; EGDMA, Ethylene glycol dimethacrylate; ESE, Enhanced solvent extraction; ESI, Electrospray ionization; FD, Fluorescence detection; FLD, Fluorimetric detection; GC, Gas chromat...

Microalgae are described as a potential alternative source of bioactive compounds that environmentally friendly. Dunaliella on its own is well known due to accumulate large amounts carotenoids, especially β-carotene. Green and orange biomasses from new salina strain DunaDZ1 isolated an Algerian Salt Lake were evaluated for carotenoids composition antioxidant activity. Ultrasound-Assisted Extrac...

size reduction of high energy materials such as 1, 3, 5, 7-tetranitro- 1, 3, 5, 7-tetraaza cyclooctane (hmx) has considerable influences on improving their explosive characteristics. in this study, nanosized hmx par­ticles were produced using ultrasonically reprecipitation method by applying water as a safe and accessible antisolvent instead of unsafe conventional methods. sem photographs revea...

An efficient and environmental-friendly extraction method has been developed for extraction of ursolic acid (UA) from Hedyotis diffusa by using subcritical water extraction (SWE). The experiments were carried out at different particle sizes (20–100 mesh), extraction temperature (120–200 ◦C), extraction time (10–50 min), solvent/solid ratio (20–40 mL/g), and extraction pressure (0.6–3.0 MPa). Re...

PURPOSE Palpation is used most commonly to assess tissue stiffness despite its well-known deficiencies. As an improvement, a mechanical technique known as ultrasonic indentation has been proposed. The purpose of this study was to compare the accuracy of 3 ultrasonic indentation techniques in quantifying bone displacement in a specially constructed tissue simulator. METHODS Three ultrasonic in...

Resveratrol is a natural compound that has many beneficial physiological functions. In recent years, the research on resveratrol gradually become hotspot. This article summarized literature reports all over world, classified and concluded extraction technology, function nano-delivery carriers of resveratrol. Solvent extraction, microwave-and ultrasonic-assisted supercritical carbon dioxide enzy...

Sample extraction is the first challenge in analysis of herbal medicines (HMs). Numerous methods have been developed to improve extraction efficiency, use less solvent and short time. In this work, a tissue-smashing based ultra-rapid extraction (TSURE) method has been proposed through the designed particle crushing, drastic stir, and dynamic molecular permeation at normal temperature. Factors i...

In this study, Asphodelus tenuifolius (ATO) seeds oils were extracted by three different extraction methods, namely Soxhlet (SE), microwave-assisted (MAE) and ultrasonic-assisted (UAE). The physicochemical properties, fatty acids, sterols, tocols, total phenol content antioxidant activity of ATO seed examined compared. best yield was from SE (21.97 ± 0.01%), followed MAE (19.28 0.13%) while tha...