Mandarin and bergamot fruits and their by-products represent a valuable raw material for food, cosmetic and pharmaceutical industry. In particular, there is much interest toward the volatiles present in these matrices, which are naturally mixed in a so peculiar way that makes their artificial reconstitution very challenging. In order to investigate the headspace released by such matrices, many techniques have been utilized in the last decades (solvent extraction, purge and trap, SDE, SPME, SBSE, etc.). Techniques such as SPME or SBSE, although become very common, present some disadvantages mainly due to their small surface areas and low trapping capacity. In many cases, the recovery rate is very low and the time required for reaching equilibration state is quite long, with a consequent loss of efficiency. In the present study, samples of lab-extracted mandarin and bergamot juices have been subjected to headspace extraction by means of a novel sample preparation technique, namely Monolithic Material Sorptive Extraction (MMSE). This technique exploits the highly adsorptive capability of monolithic material which presents mesopores and through-pores in a silica frame, with an extra adsorbent constituted by activated carbon and terminal octadecyl chains. A parallel extraction on the same samples was carried out by means of SPME and the results compared with those obtained by MMSE.
Posted: June 11, 2010, 8:48 am
ATAS GL International B.V. has changed her name into GL Sciences B.V.. We are based in Eindhoven, The Netherlands. Founded in 1990, GL Sciences B.V specializes in development and manufacturing of...