| Title |
Quantitative analysis of aqueous phases of bio-oils resulting from pyrolysis of different biomasses by two-dimensional comprehensive liquid chromatography |
| ID_Doc |
12392 |
| Authors |
Lazzari, E; Arena, K; Caramao, EB; Herrero, M |
| Title |
Quantitative analysis of aqueous phases of bio-oils resulting from pyrolysis of different biomasses by two-dimensional comprehensive liquid chromatography |
| Year |
2019 |
| Published |
|
| DOI |
10.1016/j.chroma.2019.06.016 |
| Abstract |
Agrifood by-products are perfect candidates to be further processed under the concept of circular economy, in order to produce their valorization. Although significant amounts of food-related wastes that are discarded are produced worldwide, these might still be rich in valuable compounds. A strategy to further valorize agrifood-related by-products is based on pyrolysis processes. The result of this process is a liquid product termed bio-oil which is composed of an organic phase and an aqueous phase. This bio-oil is rich on a variety of components and its analysis implies several challenges. In this work, quantitative on-line comprehensive two-dimensional liquid chromatography (LC x LC) is proposed for the first time to characterize several aqueous phases of different bio-oils. Rice husk, peanut shell, spent coffee grounds, peach core and Eucalyptus sawdust biomasses were analyzed. The developed quantitative LC x LC method presented very good linearity, precision, reproducibility, recovery and LODs and LOQs as low as 0.05 mu g mL(-1) and 0.16 mu g mL(-1), respectively. As much as 28 components were simultaneously separated and quantified in those samples. Our results found that the composition of these bio-oils was different but strongly related to the agrifood by-product submitted to pyrolysis. The developed methodology is foreseen as a valuable tool for the quantitative study of other bio-oils, considering the great complexity and high dimensionality of these samples. (C) 2019 Elsevier B.V. All rights reserved. |
| Author Keywords |
Bio-oil; By-products; Pyrolysis; Quantification; LCxLC |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED); Conference Proceedings Citation Index - Science (CPCI-S) |
| EID |
WOS:000482514100039 |
| WoS Category |
Biochemical Research Methods; Chemistry, Analytical |
| Research Area |
Biochemistry & Molecular Biology; Chemistry |
| PDF |
https://digital.csic.es/bitstream/10261/193705/3/quantichromat.pdf
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