Monthly Archives: March 2012

AP-131 – Aqueous Extraction of Oil and Protein from Soybeans with Subcritical Water

Aqueous extraction using subcritical water is an environmentally friendly alternative to extracting oil and protein from oilseeds with flammable organic solvents. The effects of solids-to-liquid ratio (1:3.3–1:11.7), temperature (66–234 _C), and extraction time (13–47 min) were evaluated on the extraction … Continue reading

Posted in Client Applications |

AP-130 – Synthesis of Biodiesel from Edible, Non-edible and Waste Cooking Oils Via Supercritical Methyl Acetate Transesterification

The use of methyl acetate instead of methanol for supercritical synthesis of glycerol-free biodiesel from vegetable oils is a new process and its study is very limited in the literature. In this work, it has been tested for the first … Continue reading

Posted in Client Applications |

AP-129 – Identification of Phospholipids,Fatty Acids in Oils and Their Oxidation Products Using SFE, MALDI and ESI-MS

The ability to sensitively detect and analyze large molecules and their reaction products is important for the analysis of biological materials, including medical samples, plants and foods. Such analyses present special challenges in terms of the need to selectively extract … Continue reading

Posted in Client Applications |

AP-128 – Solubility of Bio-Sourced Feedstocks in ‘Green’ Solvents

A group of 14 different bio-sourced, renewable feedstocks have been examined for their solubility/miscibility in a variety of ‘green’ solvents, and trends in solubility have been assessed so that the data may be extrapolated to help predict solubilities of other … Continue reading

Posted in Client Applications |

AP-127 – Solubilities of CO and H2 in Neat and CO2-Expanded Hydroformylation Reaction

Accurate knowledge of the phase equilibria of CO2-expanded hydroformylation reaction mixtures is essential to rational process design and development. Vapor-liquid equilibria of the following systems were measured in a variable-volume view cell at temperatures ranging from (313.15 to 353.15) K … Continue reading

Posted in Client Applications |

AP-126 – SFE OF MITRAGYNA SPECIOSA

Mitragyna speciosa is a narcotic plant but with specific medicinal importance. The main components of the leaves of M. speciosa are indole alkaloids. Previous scientific researches have shown that the alkaloidal extracts possess very potent anti-inflammatory, analgesic and opioid properties. … Continue reading

Posted in Client Applications |

AP-125 – SFE of Polyunsaturated Fatty Acids from Northern Shrimp (Pandalus borealis Kreyer) Processing By-products

This study investigated the potential of Northern shrimp (Pandelus borealis Kreyer) by-products as a source of omega-3 polyunsaturated fatty acids (x-3 PUFAs). The by-products (heads, shell and tail) of processing accounted for approximately 50–60% of the catch. Supercritical CO2 extraction … Continue reading

Posted in Client Applications |

AP-124 – Solubility of Bio-sourced Feedstocks in ‘Green’ Solvents†

A group of 14 different bio-sourced, renewable feedstocks (homoserine, 1; glutamic acid, 2; aspartic acid, 3; 2,5-furandicarboxylic acid, 4; fumaric acid, 5; oxalacetic acid, 6; tartaric acid, 7; malic acid, 8; succinic acid, 9; levulinic acid, 10; g-hydroxybutyrolactone, 11; xylitol, … Continue reading

Posted in Client Applications |

AP-123 – Efficient Aerobic Oxidation of Alcohols Using CuBr2 and a Series of α-w Pyridyl-imine Terminated Polydimethylsiloxane Ligands

From the point of view of Green Chemistry, polymer-based catalysts are very environmentally friendly. These catalysts can be used and recycled in green solvents such as liquid polymers and supercritical carbon dioxide. They can also be very selective.  In our … Continue reading

Posted in Client Applications |

AP-122 – Hetero-Polyaromatic Ring-Opening Reactions in scCO2

Production of cleaner fuels from increasingly low-grade feedstocks and non-edible biomass sources.

Posted in Client Applications |

AP-121 – Room Temperature Aerobic Oxidation of Alcohols using CuBr2 with TEMPO and a Tetradentate Polymer Based Pyridyl-imine Ligand

A series of tetradentate pyridyl-imine terminated Schiff-base ligands has been investigated for their ability in the catalytic oxidation of alcohols when combined with copper bromide (CuBr2) and 2,2,6,6-tetramethylpiperidyl-1-oxy (TEMPO). Analogous bidentate ligands showed poorer catalytic activity and the ratio of … Continue reading

Posted in Client Applications |

AP-120 – Extraction of Lignin from Sugar Cane Bagasse and Pinus Taeda Wood Chips using Ethanol–water Mixtures and Carbon Dioxide at High Pressures

The utilization of carbon dioxide under supercritical conditions in the delignification of wood has already been reported in the literature for several species of tree. In these studies organic solvents (acetic acid, ethanol, methanol, dioxane, etc.) were used as co-solvent … Continue reading

Posted in Client Applications |

AP-119 – Coprecipitation of Pharmaceutical Actives and Their Structurally Related Additives by the RESS Process

Coprecipitation of active pharmaceutical ingredients (API) with additives can provide the ability to add functionality to API’s at early stages of drug discovery and synthesis. It is with this objective that a number of drugs were recrystallized in the presence … Continue reading

Posted in Client Applications |

AP-117 – Biodiesel Production – The Potential of Algal Lipids Extracted with scCO2

Supercritical carbon dioxide (scCO2) was used to extract components of interest from Scenedesmus dimorphus, a microalgae species, under varied algal harvesting and extraction conditions. Liquid chromatography-mass spectrometry (LC-MS) was used to quantify the concentration of fatty acid methyl esters (FAME) … Continue reading

Posted in Client Applications |

AP-116 – Anxiolytic Activity of a SC CO2 Extract of Souroubea sympetala (Marcgraviaceae)

The purpose of this work was to develop an extraction technique to yield a betulinic acid-(BA) enriched extract of the traditional anti-anxiety plant Souroubea sympetala Gilg (Marcgraviaceae). Five extraction techniques were compared: supercritical carbon dioxide extraction (SCE), conventional solvent extraction … Continue reading

Posted in Client Applications |

AP-108 Study on Critical Points of Carbon Dioxide + Single and Multicomponent Solid Solute Systems

The phase behavior of solutes in SCF is an important aspect, which is often overlooked in the solubility determinations. Solid solutes when in contact with supercritical CO2 can exhibit complex phase behavior such as depression in melting point resulting in … Continue reading

Posted in Client Applications |

What’s New

Video – See our short overview video on the SFT-110 SFE

Posted in News Highlight Homepage |