Multi-stage recovery of phytochemicals from buckwheat (Fagopyrum esculentum Moench) flowers by supercritical fluid and pressurized liquid extraction methods

2017 ◽  
Vol 107 ◽  
pp. 271-280 ◽  
Author(s):  
Vaida Kraujalienė ◽  
Audrius Pukalskas ◽  
Petras Rimantas Venskutonis
Keyword(s):  
Supercritical Fluid ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Fagopyrum Esculentum ◽  
Pressurized Liquid Extraction ◽  
Multi Stage ◽  
Fagopyrum Esculentum Moench

scholarly journals Production of omega 3-rich oils from underutilized chia seeds. Comparison between supercritical fluid and pressurized liquid extraction methods

2019 ◽  
Vol 115 ◽  
pp. 400-407 ◽  
Author(s):  
David Villanueva-Bermejo ◽  
María V. Calvo ◽  
Pilar Castro-Gómez ◽  
Tiziana Fornari ◽  
Javier Fontecha
Keyword(s):  
Supercritical Fluid ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Omega 3

scholarly journals Pressurized Liquid Extraction and Microwave-Assisted Extraction in the Determination of Organochlorine Pesticides in Fish Muscle Samples

2008 ◽  
Vol 91 (1) ◽  
pp. 174-180 ◽  
Author(s):  
Mercedes Barriada-Pereira ◽  
Iván Iglesias-García ◽  
María J Gonzlez-Castro ◽  
Soledad Muniategui-Lorenzo ◽  
Purificación López-Maha ◽  
...  
Keyword(s):  
Organochlorine Pesticides ◽  
Fish Muscle ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Relative Standard

Abstract This paper describes a comparative study of 2 extraction methods, pressurized liquid extraction (PLE) and microwave-assisted extraction (MAE), for the determination of organochlorine pesticides (OCPs) in fish muscle samples. In both cases, samples were extracted with hexaneacetone (50 + 50), and the extracts were purified by solid-phase extraction using a carbon cartridge as the adsorbent. Pesticides were eluted with hexaneethyl acetate (80 + 20) and determined by gas chromatography with electron-capture detection. Both methods demonstrated good linearity over the range studied (0.0050.100 g/mL). Detection limits ranged from 0.029 to 0.295 mg/kg for PLE and from 0.003 to 0.054 mg/kg for MAE. For most of the pesticides, analytical recoveries with both methods were between 80 and 120, and the relative standard deviations were <10. The proposed methods were shown to be powerful techniques for the extraction of OCPs from fish muscle samples. Although good recovery rates were obtained with both extraction methods, MAE provided advantages with regard to sample handling, cost, analysis time, and solvent consumption. Acceptable validation parameters were obtained although MAE was shown to be more sensitive than PLE.

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