Results 11 to 20 of about 113,995 (347)

Study on the Phenolic Compounds and Antioxidant Activity of Gum Extract of Astragalus fasciculifolius Boiss [PDF]

open access: yesPizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2021
According to consumers trend for using natural conservator compounds, the efforts for finding new herbal resources replaced with synthetic antioxidant has increased.
Najmeh Khademi Pour   +2 more
doaj   +1 more source

The possibility of hydrocarbon systems formation by thermometamorphical genesis and the role of hydrothermal super critical fluids [PDF]

open access: yesНефтегазовая геология: Теория и практика, 2021
Using the example of supercritical fluids of carbon dioxide and water acssociation from the standpoint of supercritical fluid extraction of organic substances from sedimentary rocks and supercritical cracking of hydrocarbons, the possibility of formation
Abramov V.Yu., Pyataev A.A.
doaj   +1 more source

Review of experimental research on supercritical and transcritical thermodynamic cycles designed for heat recovery application [PDF]

open access: yes, 2019
Supercritical operation is considered a main technique to achieve higher cycle efficiency in various thermodynamic systems. The present paper is a review of experimental investigations on supercritical operation considering both heat-to-upgraded heat and
De Paepe, Michel   +6 more
core   +2 more sources

Characterization of Bioactives and Nutra-Pharmaceutical Potential of Supercritical Fluid and Hydro-Distilled Extracted Coriander Leaves Essential Oil

open access: yesDose-Response, 2022
The volatiles chemical composition and biological attributes of coriander ( Coriandrum sativum L.) leaves essential oil obtained by two extraction techniques namely supercritical fluid extraction and hydro-distillation is appraised.
Ali Abbas   +7 more
doaj   +1 more source

Effective conversion of fructose to 5-ethoxymethylfurfural with brønsted acid site (S/Cl)-functional carbon catalysts

open access: yesJournal of Bioresources and Bioproducts, 2022
Brønsted acid site (S/Cl)-functional carbon materials were prepared by ball-milling (bm) L-cysteine and ammonium chloride to form chemical complex solids, by post-heat treatment (Q) of the solids at 500 °C under a nitrogen gas atmosphere to stabilize and
Haixin Guo   +3 more
doaj   +1 more source

Supercritical fluids and fluid mixtures to obtain high-value compounds from Capsicum peppers

open access: yesFood Chemistry: X, 2022
Peppers of the Capsicum genus have a rich nutritional composition and are widely consumed worldwide. Thus, they find numerous applications in the food, pharmaceutical and cosmetic industries. One commercial application is oleoresin production, a nonpolar
Ana Carolina De Aguiar   +5 more
doaj   +1 more source

Contribution of Agricultural Produce Spice Zingiber Officinale to a Sustainable Food System: Green Extraction and Stability Study of Antioxidant Compounds

open access: yesOpen Agriculture, 2018
The present study has focused on the extraction and utilization of antioxidant compounds from the agricultural produce Zingiber officinale for its sustainable use in terms of stabilizing food from oxidation.
Jaiswal Swapnil G., Naik Satyanarayan
doaj   +1 more source

Analysis of heat transfer mechanism in supercritical fluids from the aspect of pool heating

open access: yesFrontiers in Energy Research, 2023
For the special phenomena of heat transfer deterioration or enhancement in supercritical fluid heat transfer, existing research still presents inconsistent opinions.
Minyun Liu   +5 more
doaj   +1 more source

Supercritical Fluid Extraction [PDF]

open access: yes, 2014
Supercritical fluid extraction (SFE) has become one of the most popular green extraction techniques nowadays since it has demonstrated many advantages compared with traditional or classical extraction processes. Aspects such as improved selectivity, higher extraction yields, better fractionation capabilities, and lower environmental impacts have been ...
Mendiola, J. A.   +3 more
openaire   +3 more sources

Experimental assessment of a helical coil heat exchanger operating at subcritical and supercritical conditions in a small-scale solar organic rankine cycle [PDF]

open access: yes, 2017
In this study, the performance of a helical coil heat exchanger operating at subcritical and supercritical conditions is analysed. The counter-current heat exchanger was specially designed to operate at a maximal pressure and temperature of 42 bar and ...
Billiet, Marijn   +5 more
core   +3 more sources

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