Extraction of norflurazon residues in cotton seeds with supercritical CO2

1995 ◽  
Vol 40 (7-8) ◽  
pp. 432-434 ◽  
Author(s):  
F. M. Lanças ◽  
M. A. Barbirato ◽  
M. S. Galhiane
Keyword(s):  
Supercritical Co2 ◽  
Cotton Seeds ◽  
Norflurazon Residues

Warm and freeze-fracture of cotton seed radicles

1987 ◽  
Vol 45 ◽  
pp. 984-985
Author(s):  
E. L. Vigil ◽  
E. F. Erbe
Keyword(s):  
Thin Film ◽  
Water Vapor ◽  
Fracture Surface ◽  
Membrane Structure ◽  
Room Temperature ◽  
Freeze Fracture ◽  
Longitudinal Axis ◽  
Fracture Plane ◽  
Cotton Seeds ◽  
Condensed Water

In cotton seeds the radicle has 12% moisture content which makes it possible to prepare freeze-fracture replicas without fixation or cryoprotection. For this study we have examined replicas of unfixed radicle tissue fractured at room temperature to obtain data on organelle and membrane structure.Excised radicles from seeds of cotton (Gossyplum hirsutum L. M-8) were fractured at room temperature along the longitudinal axis. The fracture was initiated by spliting the basal end of the excised radicle with a razor. This procedure produced a fracture through the tissue along an unknown fracture plane. The warm fractured radicle halves were placed on a thin film of 100% glycerol on a flat brass cap with fracture surface up. The cap was rapidly plunged into liquid nitrogen and transferred to a freeze- etch unit. The sample was etched for 3 min at -95°C to remove any condensed water vapor and then cooled to -150°C for platinum/carbon evaporation.

Anti-diabetic properties of non-polar Toona sinensis Roem extract prepared by supercritical-CO2 fluid

Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
YH Tsai ◽  
TJ Hsieh ◽  
MC Liao ◽  
PJ Lien ◽  
CC Sun ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Toona Sinensis ◽  
Supercritical Co2 Fluid

Geophysical Monitoring of Gaseous and Supercritical CO2 Fracture Flow Through a Brine-Saturated Shale Caprock

2019 ◽  
Author(s):  
Mohammad Nooraiepour ◽  
Magnus Soldal ◽  
Joonsang Park ◽  
Nazmul Haque Mondal ◽  
Helge Hellevang ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Fracture Flow ◽  
Geophysical Monitoring ◽  
Flow Through

Green Chemistry and Green Solvents: An Overview

2020 ◽  
Vol 7 (3) ◽  
pp. 314-325
Author(s):  
Barla Karuna Devi ◽  
Swathi Naraparaju ◽  
Chaganti Soujanya ◽  
Sayan Dutta Gupta
Keyword(s):  
Ionic Liquids ◽  
Green Chemistry ◽  
Chemical Reaction ◽  
Supercritical Co2 ◽  
Environmental Problems ◽  
Green Solvents ◽  
Eutectic Mixtures ◽  
Organic Carbonates

: Green chemistry emphasizes designing novel routes to overcome health and environmental problems that occur during a chemical reaction. Green solvents are used in place of conventional solvents that are hazardous to both human and the environment. Solvents like water, ionic liquids, supercritical CO2, biosolvents, organic carbonates, and deep eutectic mixtures can be used as green solvents. The review focuses on the properties, applications, and limitations of these solvents.

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