Results 21 to 30 of about 6,242,504 (204)

Subcritical Water Extraction of Antioxidant Compounds from Rosemary Plants

open access: yesJournal of Agricultural and Food Chemistry, 2002
Subcritical water extraction at several temperatures ranging from 25 to 200 degrees C has been studied to selectively extract antioxidant compounds from rosemary leaves. An exhaustive characterization of the fractions obtained using subcritical water at different temperatures has been carried out by LC-MS, and the antioxidant activities of the extracts
Ibáñez, Elena   +5 more
openaire   +4 more sources

Subcritical water extraction of organic matter from sedimentary rocks [PDF]

open access: yesAnalytica Chimica Acta, 2015
Subcritical water extraction of organic matter containing sedimentary rocks at 300°C and 1500 psi produces extracts comparable to conventional solvent extraction. Subcritical water extraction of previously solvent extracted samples confirms that high molecular weight organic matter (kerogen) degradation is not occurring and that only low molecular ...
Luong, Duy   +2 more
openaire   +4 more sources

Sequential extraction of polycyclic aromatic hydrocarbons using subcritical water

open access: yesChemosphere, 2010
A rapid sequential subcritical (superheated) water extraction method for polycyclic aromatic hydrocarbons (PAHs) in contaminated soil and sediment is presented. Decreasing the polarity of water by successive increase of the extraction temperature from 50 degrees C to 200 degrees C at the moderate pressure (10.3MPa) enabled selective, non-exhaustive ...
Latawiec, Agnieszka E., Reid, Brian J.
openaire   +4 more sources

Using Subcritical Water to Obtain Polyphenol-Rich Extracts with Antimicrobial Properties

open access: yesAntibiotics
The use of green extraction methods that meet the criteria of sustainable and environmentally friendly technologies has been increasing in recent decades due to their many benefits.
Tjaša Žagar   +2 more
doaj   +4 more sources

Subcritical water extraction of bioactive compounds from Orostachys japonicus A. Berger (Crassulaceae). [PDF]

open access: yesSci Rep, 2020
Subcritical-water extraction is an ecofriendly method for extracting antioxidant compounds only using water. The Subcritical-water extraction was employed for the extraction of bioactive compounds from Orostachys japonicus known as rock pine by ...
Ko MJ, Nam HH, Chung MS.
europepmc   +2 more sources

Immunostimulatory effects of a subcritical water extract of Ganoderma

open access: yesBiomedical Reports, 2022
Ganoderma, a medicinal mushroom with various physiological activities, has been extensively investigated regarding its effectiveness. The aim of the present study was to examine the effects of a subcritical water extract of Ganoderma (SWEG) on the immune system.
Hattori, Koji   +9 more
openaire   +2 more sources

Research Progress in Subcritical Water Extraction of Bioactive Substances from Plants

open access: yesShipin gongye ke-ji, 2022
Plant derived bioactive substances such as polyphenols and polysaccharides play an important role in functional and health food because of their antioxidant and anti-tumor properties.
Xue BAI   +5 more
doaj   +1 more source

Subcritical Water Extraction of Barley to Produce a Functional Drink [PDF]

open access: yesBioscience, Biotechnology, and Biochemistry, 2008
We investigated the effects of various temperatures between 150 and 280 degrees C during subcritical water extraction of barley to make a barley tea-like extract, a popular summer beverage in Japan. Each barley extract was analyzed for sensory properties, antioxidative activity, and the amount of residual matter, which revealed 205 degrees C to be the ...
KULKARNI, Aditya   +3 more
openaire   +2 more sources

Extraction optimization and characterization of persimmon peel pectin extracted by subcritical water

open access: yesFood Chemistry: X, 2022
Persimmon peel pectin (PPP) was extracted by subcritical water via the response surface methodology. The optimal crude PPP extraction yield of 7.62 ± 0.7 % was found at 138 °C, 2.84 min, and liquid-solid ratio of 1:10.02. After treatment of deproteinization and decolorization with papain and hydrogen peroxide, 83.19 % of protein and 78.56 % of the ...
Yanlong Cui   +5 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy