نتایج جستجو برای: subcritical water

تعداد نتایج: 553646  

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
elahe maghsoudlou reza esmaeilzaadeh kenari zeinab raftani amiri

recently, subcritical water extraction (swe) has been well known as a green technology for extraction of bioactive compounds from plants. in this study, subcritical water extraction, ultrasound assisted extraction (uae) and shaker solvent extraction (sse) were compared for extraction of phenolic compounds from fig (ficuscarica) pulp and skin. antioxidant activity of the extracts was evaluated u...

2017
Thomas Powell Steve Bowra Helen J. Cooper

Previously we have shown that subcritical water may be used as an alternative to enzymatic digestion in the proteolysis of proteins for bottom-up proteomics. Subcritical water hydrolysis of proteins was shown to result in protein sequence coverages greater than or equal to that obtained following digestion with trypsin; however, the percentage of peptide spectral matches for the samples treated...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
fatemeh raiesi mohammad hojjatoleslamy seyed hadi razavi mahdi bahman mohammad ali shariaty

in this study, three varieties of rice including tarom, anbarbo and hashemi were selected and their heavy metals content were analyzed. subcritical water was used to provide rice bran extract at temperatures 100 and 120 ° c. in order to provide grape juice treatments, we used 5, 10, 15 and 20 % of extract in the formulation of red grape drink. samples which had packed and pasteurized, kept in t...

2014
Kyoung Ah Lee Kee-Tae Kim Pahn-Shik Chang Hyun-Dong Paik

Ginseng leaf/stem extract produced by subcritical water extraction at high temperature (190°C) possess higher cytotoxic activity against human cancer cell lines than ethanol extract. Subcritical water extraction can be a great candidate for extraction of functional substance from ginseng leaves/stems.

Journal: :Physical review letters 2004
Vladimir K Vanag Irving R Epstein

Stationary and oscillatory localized patterns (oscillons) are found in the Belousov-Zhabotinsky reaction dispersed in Aerosol OT water-in-oil microemulsion. The experimental findings are analyzed in terms of subcritical Hopf instability, subcritical Turing instability, and their combination.

2009
Bambang Veriansyah Jaehoon Kim Jae-Duck Kim Youn-Woo Lee

Centella asiatica is a tropical medicinal plant with a long history of therapeutic uses, dermal disorders, venous insufficiency and microangiopathy. The substances of therapeutic interest are the saponin-containing triterpene acids and their sugar esters. Two bioactive components, asiatic acid and asiaticoside, were extracted from Centella asiatica using subcritical water as an extraction solve...

Journal: :Bioscience, biotechnology, and biochemistry 2015
Da-Ming Gao Takashi Kobayashi Shuji Adachi

The influence of water-miscible alcohols (methanol, 1-propanol, 2-propanol, and t-butyl alcohol) on the isomerization of glucose to fructose and mannose was investigated under subcritical aqueous conditions (180-200 °C). Primary and secondary alcohols promoted the conversion and isomerization of glucose to afford fructose and mannose with high and low selectivity, respectively. On the other han...

2016
Yun-Kyung Lee Bo-Bae Ko Munkhtugs Davaatseren Geun-Pyo Hong

This study investigated the effect of soy protein hydrolysates (SPH) prepared by varying subcritical media on the physicochemical properties of pork patties. For resource of SPH, two different soybean species (Glycine max Merr.) of Daewonkong (DWK) and Saedanbaek (SDB) were selected. SPH was prepared by subcritical processing at 190℃ and 25 MPa under three different of media (water, 20% ethanol...

2017
Elena Vladimirovna Vetrova Elena Vladimirovna Maksimenko Salima Salimovna Khizrieva Anastasia Fedorovna Bugaeva Nikolay Ivanovitch Borisenko Vladimir Isaakovitch Minkin

CONTEXT Quercetin (QR) is a natural strong antioxidant of the plant origins. It is used for treating conditions of heart and blood vessels including "hardening of arteries" (atherosclerosis), high cholesterol, heart disease, circulation problems, preventing cancer, for treating chronic infections of the prostate, etc. AIMS The aim of this work was to development and study of an acid-free tech...

Journal: :The Journal of Supercritical Fluids 1998

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