نتایج جستجو برای: ultrasound microwave supercritical fluid soxhlet

تعداد نتایج: 384203  

Journal: :Food chemistry 2013
Nejia Herzi Jalloul Bouajila Séverine Camy Mehrez Romdhane Jean-Stéphane Condoret

In the present study, three techniques of extraction: hydrodistillation (HD), solvent extraction (conventional 'Soxhlet' technique) and an innovative technique, i.e., the supercritical fluid extraction (SFE), were applied to ground Tetraclinis articulata leaves and compared for extraction duration, extraction yield, and chemical composition of the extracts as well as their antioxidant activitie...

Journal: :international journal of environmental research 0

supercritical fluid extraction (scfe) is a soil remediation technology. at present, only a few companies are using from this method, all of which are technical based on conventional methods of extraction such as soilex solvent extraction. because of the hard enforcement of environmental conservation law, using green technology seems imperative. this paper endeavors to carry out the feasibility ...

Journal: :Chemical and Biochemical Engineering Quarterly 2021

Exploitation of agro-industrial by-products represents an important source bioactive compounds that can be used both directly as ingredients and for the production <br /> functional ingredients. Among these compounds, polyphenols are capable strengthening endogenous antioxidant defences in human tissues, preventing cardiovascular neurodegenerative diseases. The present paper aims to evalu...

2012
E.S. Kolotova S.G. Egorova A.A. Ramonova S.E. Bogorodski V.K. Popov 
I.I. Agapov M.P. Kirpichnikov

Biodegradable polylactide microparticles with encapsulated cytotoxic protein viscumin were obtained via the ultrasound-assisted supercritical fluid technique. The size of the microparticles was 10-50 µM, as shown by electron microscopy. The time course of viscumin release from microparticles was studied using an immunoenzyme test system with anti-viscumin monoclonal antibodies. It was found tha...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده کشاورزی 1386

سهم زیادی از ضایعات کارخانه های فراوری میوه انار را پوست آن تشکیل می دهد (30 تا 60 درصد بسته به رقم انار) که در کشور از آن استفاده بهینه نمی شود. طبق تحقیقات انجام گرفته عصاره پوست انار خاصیت آنتی اکسیدانی و ارزش دارویی و غذایی بالایی دارد. در تحقیق حاضر سعی بر آن شد تا چند دسته از ترکیبات دارویی و غذایی پوست میوه انار استخراج، شناسایی و ارزیابی کمی شوند. بدین منظور سه رقم انار معروف ایران با ن...

2013
Liu Si

General principles of supercritical fluid extraction technology to raise efficiency are summarized and concluded in this paper. It generalized the present domestic situation of relative research and developed proposals towards kind of charging and discharging continuous components by a new supercritical fluid extraction .It also introduced structures and working principles of device. Keywords— ...

2010
L. Fiori M. Solana P. Tosi M. Manfrini G. Guella

In this paper the extraction of oils from trout waste is investigated. Trout heads, viscera and spine, obtained from a fish-processing company, have been separately freeze-dried and then extracted. Two different solvent extraction techniques have been utilized and compared: the common soxhlet extraction, which utilizes n-hexane at atmospheric pressure as solvent, and the supercritical CO2 extra...

2003
H. J. Vandenburg

high pressures also requires special equipment. In summary, both RESS crystallization and SAS crystallization appear to be promising methods for generating supersaturation and therefore represent alternatives to conventional crystallization. Such alternatives may prove attractive in applications such as polymer and pharmaceutical processing, or in particle design for drug delivery. It is possib...

Journal: :Quality Assurance and Safety of Crops & Foods 2023

Hesperidin is abundantly present as a flavanone glycoside in citrus fruits. The peels, seeds, pulp, and cell membrane residues contain high amount of hesperidin. It has received scientific momentum lately it offers several health benefits upon consumption, possesses antioxidant, anti-hypocholesteric, antitumor, anticancer, antimicrobial, antibacterial, anti-inflammatory, anti-diabetic propertie...

2013
Evangelia Zampeli Ioannis Raftakis Archontoula Michelongona Chara Nikolaou Antonia Elezoglou Konstantinos Toutouzas Elias Siores Petros P. Sfikakis

OBJECTIVE Microwave Radiometry is a non-invasive method which determines within seconds the in vivo temperature of internal tissues at a depth of 3-7 cm with an accuracy of ±0.2°C. In this proof-of-concept study, we tested the hypothesis that, in absence of relevant clinical signs, increased local temperature detected by microwave radiometry reflects subclinical synovial inflammation, using ult...

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