Supercritical Carbon Dioxide and Subcritical Water: Complementary Agents in the Processing of Functional Foods

2010 ◽  
pp. 39-78 ◽  
Author(s):  
Keerthi Srinivas ◽  
Jerry W. King
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Functional Foods ◽  
Subcritical Water ◽  
Supercritical Carbon

scholarly journals Subcritical and supercritical fluid extraction of heavy metals from sand and sewage sludge

2013 ◽  
Vol 78 (7) ◽  
pp. 1013-1022 ◽  
Author(s):  
Erdal Yabalak ◽  
Murat Gizir
Keyword(s):  
Carbon Dioxide ◽  
Sewage Sludge ◽  
Supercritical Carbon Dioxide ◽  
Inductively Coupled Plasma ◽  
Subcritical Water ◽  
Chelating Agent ◽  
Dynamic Mode ◽  
Subcritical Water Extraction ◽  
Real Samples ◽  
Supercritical Carbon

Demetalization of Pb, Ni, Zn, Cu and Cr heavy metal ions from sea sand and real samples of sewage sludge by subcritical water and supercritical carbon dioxide was investigated. Experimental parameters such as temperature, pressure, extraction time in the static and dynamic mode and sampling were optimized in order to determine the suitable conditions for high metals removal. The best extraction efficiencies were obtained by using acetyl acetonate as chelating agent in both subcritical water and supercritical CO2 extractions for real and artificial samples. Samples collected from extraction system using both subcritical water and supercritical carbon dioxide were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The highest recoveries (%) obtained from real samples for Cr, Cu, Ni, Pb and Zn were 77.25, 95.1, 84.82, 94.92 and 98.39, respectively, with the chelating agent in the subcritical water extraction.

scholarly journals Hepatoprotective Effect of Supercritical Carbon Dioxide Extracted Dabai Pulp Oil and Its Defatted Pulp

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 671
Author(s):  
Noor Atiqah Aizan Abdul Kadir ◽  
Azrina Azlan ◽  
Faridah Abas ◽  
Intan Safinar Ismail
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Functional Foods ◽  
Density Lipoprotein ◽  
Histological Section ◽  
High Cholesterol Diet ◽  
Cholesterol Diet ◽  
High Cholesterol ◽  
Hepatoprotective Effects ◽  
Supercritical Carbon

All food scientists must utilize plants for their application as functional foods to reduce hypercholesterolemia incidence through diet. Canarium odontophyllum (dabai) is a novel source for new healthy oil and functional foods. In this work, we evaluate the hepatoprotective effects of supercritical carbon dioxide (SC-CO2) extracted dabai pulp oil (DPO) and defatted dabai pulp (DDP) against hypercholesterolemia elicited by a high-cholesterol diet in rats. Our results show that DPO and DDP supplementation exerted beneficial hypocholesterolemic effects against the high-cholesterol diet-fed rat. Nevertheless, supplementation with DDP revealed superior total cholesterol, low-density lipoprotein, and HMG-CoA reductase lowering efficacy (p < 0.05). Supplementation of either DPO or DDP did not significantly affect AST and ALT levels than normal rats (p > 0.05). Therefore, DDP and DPO are considered as having no toxicological significance. The histological section of rats treated with DPO and DDP showed improved steatosis in hepatocytes. HPLC analysis revealed that DPO and DDP contained syringic acid, which plays an important role in the beneficial effect. In conclusion, our results support the hypocholesterolemic and hepatoprotective effects of DPO and DDP in the hypercholesterolemic rats model.

scholarly journals Subcritical water and supercritical carbon dioxide: efficient and selective eco-compatible solvents for coffee and coffee by-products valorization

2020 ◽  
Vol 22 (24) ◽  
pp. 8544-8571
Author(s):  
Alexandre Vandeponseele ◽  
Micheline Draye ◽  
Christine Piot ◽  
Gregory Chatel
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Subcritical Water ◽  
State Of The Art ◽  
The State ◽  
Spent Coffee Grounds ◽  
Coffee Grounds ◽  
By Products ◽  
Supercritical Carbon

This review aims to establish the state of the art of the existing literature on the valorization of coffee and coffee by-products such as spent coffee grounds through the use of subcritical water (SCW) and supercritical carbon dioxide (SC-CO2).

Sign in / Sign up

Export Citation Format

Share Document