Valorisation of tomato wastes for development of nutrient-rich antioxidant ingredients: A sustainable approach towards the needs of the today's society
Files in This Item:
|Valorisation_of_tomato_wastes_for_development_of_nutrient-rich_antioxidant_ingredients.pdf||1.26 MB||Adobe PDF||Download|
|Title:||Valorisation of tomato wastes for development of nutrient-rich antioxidant ingredients: A sustainable approach towards the needs of the today's society||Authors:||Pinela, José; Prieto Lage, Miguel Ángel; Barreiro, Maria Filomena; Curran, Thomas P.; et al.||Permanent link:||http://hdl.handle.net/10197/9316||Date:||Jun-2017||Online since:||2018-04-11T15:13:57Z||Abstract:||Nutrient-rich antioxidant ingredients were produced from tomato fruit wastes using a microwave-assisted extraction (MAE) process. Different conditions of extraction time (t), temperature (T), ethanol concentration (Et) and solid/liquid ratio (S/L) were combined in a circumscribed central composite design and optimized by response surface methodology. The model was statistically validated and used for prediction in the experimental range. Under the global optimal MAE conditions (t = 20 min, T = 180 °C, Et = 47.4% and S/L = 45 g/L), it was possible to obtain an extraction yield of 75.5% and ingredients with high levels of sugars, proteins, phenolics, and flavonoids, and interesting antioxidant properties measured via ABTS+ scavenging activity and oxidative haemolysis inhibition assay (OxHLIA). The antioxidant capacity of the extracts was lower compared to the one of commercial food additives. However, the sustainably developed ingredients may be used in the fortification and functionalisation of food, as well as for incorporation in feed products.Industrial relevanceThis study addresses current needs of the agri-food sector, namely the recycling of plant wastes and production of valuable extracts for the food/feed industry. A MAE process was developed and optimized to maximize the recovery of nutrients and antioxidants from tomato fruit wastes. The optimum processing conditions established in this study allowed a high extraction yield and reduced solvent consumption. MAE can be considered as a sustainable alternative to conventional extraction methods. These findings will contribute to promote a more sustainable bioeconomy in the agro-food sector.||metadata.dc.description.othersponsorship:||Foundation for Science and Technology Portugal||Type of material:||Journal Article||Publisher:||Elsevier||Journal:||Innovative Food Science and Emerging Technologies||Volume:||41||Start page:||160||End page:||171||Copyright (published version):||2017 Elsevier||Keywords:||Tomato; Waste; Antioxidant||DOI:||10.1016/j.ifset.2017.02.004||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Biosystems and Food Engineering Research Collection|
Show full item record
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.