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. 2021 Jan 30:336:127590.
doi: 10.1016/j.foodchem.2020.127590. Epub 2020 Jul 29.

Effect of red thyme oil (Thymus vulgaris L.) vapours on fungal decay, quality parameters and shelf-life of oranges during cold storage

L Pinto  1 , M Cefola  2 , M A Bonifacio  3 , S Cometa  4 , C Bocchino  5 , B Pace  6 , E De Giglio  7 , M Palumbo  8 , A Sada  9 , A F Logrieco  10 , F Baruzzi  11
Affiliations

Effect of red thyme oil (Thymus vulgaris L.) vapours on fungal decay, quality parameters and shelf-life of oranges during cold storage

L Pinto et al. Food Chem. .

Abstract

This work has been aimed at studying the effect of red thyme oil (RTO, Thymus vulgaris L.) on the shelf-life and Penicillium decay of oranges during cold storage. RTO vapours significantly reduced (P ≤ 0.05) the percentage of infected wounds, the external growth area and the production of spores in inoculated orange fruit stored for 12 days at 7 °C in a polypropylene film selected for its appropriate permeability. Among the RTO compounds, p-cymene and thymol were the most abundant in packed boxes at the end of cold storage. The RTO vapours did not affect the main quality parameters of the oranges, or the taste and odour of the juice. The results have shown that an active packaging, using RTO vapours, could be employed, by the citrus industry, to extend the shelf-life of oranges for fresh market use and juice processing.

Keywords: Active packaging; Citrus fruit; Essential oils; GC–MS; Penicillium decay; Polypropylene (PubChem CID: 76958); Shelf-life; Thymol (PubChem CID: 6989); p-Cymene (PubChem CID: 7463); ɣ-Terpinene (PubChem CID: 7461).

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Conflict of interest statement

Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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