scholarly journals Fatty Acid Ethyl Esters (FAEE): A New, Green and Renewable Solvent for the Extraction of Carotenoids from Tomato Waste Products

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4388
Author(s):  
Aurel Diacon ◽  
Ioan Călinescu ◽  
Mircea Vinatoru ◽  
Petre Chipurici ◽  
Alexandru Vlaicu ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Sunflower Oil ◽  
Edible Oils ◽  
Beta Carotene ◽  
Renewable Resource ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Ultrasound Assisted Extraction ◽  
Waste Products ◽  
Food And Beverage

Currently there is a drive towards the minimisation and reclamation of valuable materials from the waste products of the food and beverage industry. This can be achieved through the extraction of residual nutraceuticals from such materials. Tomato pomace contains carotenoids and other chemicals which can be extracted directly into edible oils to improve the health-giving properties of such oils. We report here a novel green solvent, fatty acid ethyl esters (FAEE), which is significantly more effective than sunflower oil and hexane for the extraction of lycopene and beta-carotene from tomato skin waste. FAEE are a non-toxic renewable resource that is environmentally friendly and to our knowledge has never been used as a vegetal extraction fluid. The efficiency of FAEE extraction was significantly improved relative to both sunflower oil and hexane under ultrasound-assisted extraction (UAE) conditions. In addition, FAEE have the additional and significant advantage that once enriched with the extracted nutraceuticals can be used directly as a food additive.

Continuous production of fatty acid ethyl esters from sunflower oil using supercritical ethanol

Fuel ◽  
2012 ◽  
Vol 97 ◽  
pp. 703-709 ◽  
Author(s):  
A. Velez ◽  
G. Soto ◽  
P. Hegel ◽  
G. Mabe ◽  
S. Pereda
Keyword(s):  
Fatty Acid ◽  
Sunflower Oil ◽  
Continuous Production ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Supercritical Ethanol

scholarly journals Fatty acid ethyl esters in meconium and substance use in adolescence

2021 ◽  
Vol 83 ◽  
pp. 106946
Author(s):  
Meeyoung O. Min ◽  
Sonia Minnes ◽  
Hasina Momotaz ◽  
Lynn T. Singer ◽  
Anna Wasden ◽  
...  
Keyword(s):  
Substance Use ◽  
Fatty Acid ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters

scholarly journals Development and validation of a method for the simultaneous analysis of fatty acid ethyl esters, ethyl sulfate and ethyl glucuronide in neonatal meconium: application in two cases of alcohol consumption during pregnancy

2021 ◽  
Vol 413 (11) ◽  
pp. 3093-3105
Author(s):  
Mateusz Kacper Woźniak ◽  
Laura Banaszkiewicz ◽  
Justyna Aszyk ◽  
Marek Wiergowski ◽  
Iwona Jańczewska ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acid ◽  
Alcohol Consumption ◽  
Solid Phase ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Ethyl Glucuronide ◽  
Published Data ◽  
Ethyl Sulfate ◽  
Analytical Approaches

AbstractAlcohol consumption during pregnancy constitutes one of the leading preventable causes of birth defects and neurodevelopmental disorders in the exposed children. Fatty acid ethyl esters (FAEEs), ethyl glucuronide (EtG) and ethyl sulfate (EtS) have been studied as potential biomarkers of alcohol consumption. However, most analytical approaches proposed for their analysis in meconium samples consist of separated extraction procedures requiring the use of two meconium aliquots, which is costly in terms of both time and materials. Therefore, the aim of this study was to develop and validate a method for the simultaneous extraction of 9 FAEEs, EtG and EtS from one meconium aliquot. The sample was homogenized using methanol, and then FAEEs were extracted with hexane while EtG and EtS were isolated using acetonitrile. Then, extracts were applied to solid-phase extraction columns and analysed by gas chromatography mass spectrometry (FAEEs) and liquid chromatography tandem mass spectrometry (EtG and EtS). Calibration curves were linear with r values greater than 0.99. The LODs ranged from 0.8 to 7.5 ng/g for FAEEs and were 0.2 ng/g and 0.8 ng/g for EtS and EtG, respectively. LOQs ranged from 5 to 25 ng/g for FAEEs and were 1 ng/g and 2.5 ng/g for EtS and EtG, respectively. Accuracies and precisions were between 93.8 and 107% and between 3.5 and 9.7%, respectively. The recovery values ranged from 89.1 to 109%. The method proved to be sensitive, specific, simple and fast and allowed for the reduction of the amount of organic solvent used for extraction compared to other published data while higher recoveries were obtained. The method was used for analysis of meconium samples in two cases of mothers who were consuming alcohol during pregnancy.

scholarly journals Pilot-Scale Production of Fatty Acid Ethyl Esters by an Engineered Escherichia coli Strain Harboring the p(Microdiesel) Plasmid

2010 ◽  
Vol 76 (13) ◽  
pp. 4560-4565 ◽  
Author(s):  
Yasser Elbahloul ◽  
Alexander Steinbüchel
Keyword(s):  
Escherichia Coli ◽  
Fatty Acid ◽  
Carbon Sources ◽  
Dry Mass ◽  
Pilot Scale ◽  
Coli Strain ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Scale Production ◽  
A Cell

ABSTRACT Fatty acid ethyl esters (FAEEs) were produced in this study by the use of an engineered Escherichia coli p(Microdiesel) strain. Four fed-batch pilot scale cultivations were carried out by first using glycerol as sole carbon source for biomass production before glucose and oleic acid were added as carbon sources. Cultivations yielded a cell density of up to 61 ± 3.1 g of cell dry mass (CDM) per liter and a maximal FAEE content of 25.4% ± 1.1% (wt/wt) of CDM.

Prevalence of heavy fetal alcohol exposure by analysis of meconium fatty acid ethyl esters; A nat ionwide canadian study

2018 ◽  
Vol 80 ◽  
pp. 142
Author(s):  
Kaithlyn Delano ◽  
Gideon Koren ◽  
Martin Zack ◽  
Bhushan Kapur ◽  
Joey Gareri ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Alcohol Exposure ◽  
Fatty Acid Ethyl Esters ◽  
Ethyl Esters ◽  
Fetal Alcohol Exposure ◽  
Canadian Study ◽  
Fetal Alcohol
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