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Chromatography 2016
September 21-23, 2016
Volume 7, Issue 5(Suppl) J Chromatogr Sep Tech 2016
ISSN: 2157-7064 JCGST, an open access journal
conferenceseries .com
September 21-23, 2016 Amsterdam, Netherlands
World Congress on Chromatography
Two-phase olive pomace as an interesting source of biophenols
Aurélia Malapert1, Michèle Loonis2, Emmanuelle Reboul2, Olivier Dangles1 and Valérie Tomao 1
1Université d’Avignon, France
2Institut national de la recherche agronomique, France
Olive oil consumption is associated with a number of health enhancing effects such as the reduction of chronic diseases and
the fight against the risk of heart disease. To produce olive oil, a new industrial process called the “two-phase centrifuge
system” allows for the recovery of one hand the olive oil and on other hand a wet pomace also called alperujo composed of
vegetation waters and olive pieces. The aim of this investigation was to evaluate alperujo as a potential source of phenolic
compounds using a rapid, reliable and efficient analytical method. Target antioxidant compounds were followed with UHPLC-
DAD/ESI-MSn in order to identify and quantify biophenols. The results obtained showed the identification of 35 phenolic
compounds in 12 minutes with a tentative of identification of new molecules. Furthermore, the aglycon and glycosidic forms
of hydroxytyrosol were quantified in high concentration (3 mM). These results could lead to a fast promotion of phenolic
compounds in olive oil by-products in terms of a new economic source of interesting phenolic antioxidants for the health,
cosmetic and food sectors. .
J Chromatogr Sep Tech 2016, 7:5(Suppl)
Preparation, characterization and application of H3PO4 activated maize tassel for the remediation of
eutrophic phosphorus
Shofolahan Adebayo
Sefako Makgatho Health Sciences University, South Africa
Technologies for PO43- removal from contaminated waters, such as chemical precipitation with lime, are expensive. In
this study, the feasibility of utilizing low-cost activated maize tassel for the adsorptive removal of phosphate was assessed.
Raw maize tassel powder was impregnated with H3PO4 in the ratios 0.5:1, 1:1, 1.5:1, 2:1 and 2.5:1 and activated at 600 and
800ºC under an inert atmosphere of N2. The activated products were characterized by BET. Activation resulted in an increase
in specific surface area and porosity. CAT4 (2:1) activated at 600ºC) with SBET 803.8 m2/g and pore size 2.22 nm was further
characterized by SEM and used for adsorption studies. Batch experiments were performed to study the removal of phosphate
from simulated samples; the optimal parameters were found to be: contact time of 90 min, pH 7 and adsorbent dosage of
1.5 g per 100 mL solution. The adsorption data were fitted to the Langmuir isotherm model (R2>0.99), yielding an estimated
adsorption capacity of 15.31 mg PO4
3- per g adsorbent. The activated product was successfully applied for the remediation of
phosphate in selected samples from 3 sewage treatment plants in Northern Pretoria.