| Title: | Effect of Controlled Oxygen Supply during Crushing on Volatile and Phenol Compounds and Sensory Characteristics in Coratina and Ogliarola Virgin Olive Oils |
| Author(s): | Veneziani G; Garcia-Gonzalez DL; Esposto S; Nucciarelli D; Taticchi A; Boudebouz A; Servili M; |
| Address: | "Department of Agricultural, Food and Environmental Sciences, University of Perugia, Via S. Costanzo, 06126 Perugia, Italy. Instituto de la Grasa (CSIC), Ctra. Utrera, km 1, Edif. 46, 41013 Sevilla, Spain. Instrument Sensometry Research Group (i-Sens), Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Campus Sescelades, 43007 Tarragona, Spain" |
| ISSN/ISBN: | 2304-8158 (Print) 2304-8158 (Electronic) 2304-8158 (Linking) |
| Abstract: | "In virgin olive oil industries, the technological choices of the production plant affect the biochemical activities that take place in the olives being processed throughout the entire process, thereby affecting the quality of the final product. The lipoxygenase pool enzymes that operated their activity during the first phases of the process need the best conditions to work, especially concerning temperature and oxygen availability. In this study, a system was equipped to supply oxygen in the crusher at a controllable concentration in an industrial olive oil mill at pilot plant scale, and four oxygen concentrations and two cultivars, Coratina and Ogliarola, were tested. The best concentration for oxygen supply was 0.2 L/min at the working capacity of 0.64 Ton/h. Further, using this addition of oxygen, it was possible to increase the compound's concentration, which is responsible for the green, fruity aroma. The effect on volatile compounds was also confirmed by the sensory analyses. However, at the same time, it was possible to maintain the concentration of phenols in a good quality olive oil while also preserving all the antioxidant properties of the product due to the presence of phenols. This study corroborates the importance of controlling oxygen supply in the first step of the process for process management and quality improvement in virgin olive oil production" |
| Keywords: | crushing oxygen control phenols virgin olive oil volatile compounds; |
| Notes: | "PubMed-not-MEDLINEVeneziani, Gianluca Garcia-Gonzalez, Diego L Esposto, Sonia Nucciarelli, Davide Taticchi, Agnese Boudebouz, Abdelaziz Servili, Maurizio eng OLIVENEWTECH - ID 04 (D.M. n. 18200)/Ministry of Agricultural, Food and Forestry Policies/ Switzerland 2023/02/12 Foods. 2023 Feb 1; 12(3):612. doi: 10.3390/foods12030612" |
