Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Recycling of Waste Cooking Oils: Variation of the Chemical Composition during Water Treatment

Version 1 : Received: 9 April 2019 / Approved: 11 April 2019 / Online: 11 April 2019 (08:55:22 CEST)
Version 2 : Received: 16 April 2019 / Approved: 16 April 2019 / Online: 16 April 2019 (11:19:15 CEST)

How to cite: Mannu, A.; Ferro, M.; Colombo Dugoni, G.; Panzeri, W.; Petretto, G.L.; Urgeghe, P.; Mele, A. Recycling of Waste Cooking Oils: Variation of the Chemical Composition during Water Treatment. Preprints 2019, 2019040137. https://doi.org/10.20944/preprints201904.0137.v1 Mannu, A.; Ferro, M.; Colombo Dugoni, G.; Panzeri, W.; Petretto, G.L.; Urgeghe, P.; Mele, A. Recycling of Waste Cooking Oils: Variation of the Chemical Composition during Water Treatment. Preprints 2019, 2019040137. https://doi.org/10.20944/preprints201904.0137.v1

Abstract

Samples of sunflower Waste Cooking Oils (WCOs) subjected to several cycles of frying were treated with water under four different combinations of temperature and pH. The variation of the chemical composition of the oil samples was monitored through headspace Solid-Phase Microextraction (HS-SPME) coupled with gas-chromatographic technique (GC), 1H NMR spectroscopy and ESI+ mass spectrometry measurements. The possibility to modify the chemical composition of the recycled vegetable oil by tuning the water treatment parameters was exploited for the designing of a mini-plant for the production of bio-lubricants. A full description of the proposed prototype is also reported.

Keywords

waste cooking oil; volatiles; 1H NMR; mass spectrometry; prototype

Subject

Chemistry and Materials Science, Food Chemistry

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