| Title |
An exploratory study of extractions of celery ( Apium graveolens L.) waste material as source of bioactive compounds for agricultural applications |
| ID_Doc |
13224 |
| Authors |
Motti, P; Bastiaens, L; Geelen, D; Mangelinckx, S |
| Title |
An exploratory study of extractions of celery ( Apium graveolens L.) waste material as source of bioactive compounds for agricultural applications |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.indcrop.2024.118848 |
| Abstract |
Interest in the capitalization of waste biomass is steadily increasing in the last years, with many scientists involved in the valorisation of these untapped sources of specialty chemicals and energy, that would otherwise be composted or destined to landfills. In view of developing a circular economy, crop waste is an important resource of specialty chemicals for applications in agriculture. In this study, we extracted celery ( Apium graveolens L.) waste biomass following a cascade of supercritical fluid extractions with increasing amounts of ethanol as cosolvent. Fractions obtained with this methodology were compared in terms of composition with an extract obtained via Soxhlet extraction employing ethyl acetate, a generally recommended organic solvent with a low toxicity. GC -MS analysis revealed the presence of many metabolites with interesting bioactivities. The comparison of the extraction methods showed that the use of hot ethyl acetate results in higher yields than SFE for the selected compounds. The addition of ethanol as a co -solvent can be instrumental for exploiting the waste material by employing a green technology such as the SFE, also affording fractions with different chemical profiles and different potential applications. Solid residues were subsequently extracted with water to obtain mannitol, a plant osmolyte with biostimulant activity. q 1 H NMR allowed for its quantification in different extracts, confirming celery as an excellent source of mannitol and showing that water extraction after Soxhlet or SFE is possible to obtain extracts with different potential use destinations. These techniques allowed the identification of possible valorization routes for celery waste as a biostimulant source and crop protection tool. |
| Author Keywords |
Celery; By-products; Supercritical fluid; Biorefinery; Extraction; Valorization |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001258250800001 |
| WoS Category |
Agricultural Engineering; Agronomy |
| Research Area |
Agriculture |
| PDF |
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