Gianluca Veneziani

Prof. Gianluca Veneziani

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2019 in Food Chemistry
Verified
Journal Article
Closed access
ATAgnese Taticchi
Agnese Taticchi
RSRoberto Selvaggini
Roberto Selvaggini
SESonia Esposto
Sonia Esposto
BSBeatrice Sordini
Beatrice Sordini
GVGianluca Veneziani
Gianluca Veneziani
MSMaurizio Servili
Maurizio Servili

29 August 2021 in Antioxidants
Verified
Journal Article
Open access
PDF file
SESonia Esposto
Sonia Esposto
GVGianluca Veneziani
Gianluca Veneziani
ATAgnese Taticchi
Agnese Taticchi
SUStefania Urbani
Stefania Urbani
RSRoberto Selvaggini
Roberto Selvaggini
MSMaurizio Servili
Maurizio Servili
We undertook a qualitative and quantitative assessment of the bioactive compounds, volatile substances, sensory profile, and antioxidant activity of eight different commercial pomegranate juices (PJs) differing by cultivation area, processing (from concentrate (CPJ) or not (NCPJ)), and microbial stabilization. Punicalins were the main ellagitannins, whereas the predominant anthocyanin was cyanidin 3,5-diglucoside, followed by cyanidin 3-glucoside. Total phenols, tannins, hydrolyzable tannins, and anthocyanins in the investigated juices ranged from 1379.9 to 3748.8 mg gallic acid equivalent (GAE)/L, 394.8 to 895.2 mg GAE/L, 150.8 to 2374.2 mg ellagic acid/L, and 0 to 281 mg cyanidin 3-glucoside/L, respectively. Antioxidant activity, determined by DPPH•, FRAP, and ABTS, was positively correlated with the total phenolic compounds and hydrolyzable tannins. Alcohols, acids, and furans were the volatile groups that best described the differences between juices. The most abundant volatile compound was 3-Furfural (8.6–879.9 µg/L) in those juices subjected to the concentration process and to high-temperature short-time (HTST) treatment, whereas it was not present in juice subjected to high-pressure processing (HPP). Processing also affected the juices’ sensory attributes: NCPJs were characterized by ‘red–purple’, ‘pomegranate fruit’, ‘fresh fruit’, and ‘overall intensity’ notes, while in CPJs these notes were not revealed or were masked by those related to heat treatment. Our results provide useful information on the importance of extraction methods and on the overall quality of PJ for the food industry.

1 April 2017 in Food Chemistry
Verified
Journal Article
Closed access
GVGianluca Veneziani
Gianluca Veneziani
SESonia Esposto
Sonia Esposto
ATAgnese Taticchi
Agnese Taticchi
SUStefania Urbani
Stefania Urbani
RSRoberto Selvaggini
Roberto Selvaggini
MSMaurizio Servili
Maurizio Servili

1 April 2021 in Food Chemistry
Verified
Journal Article
Closed access
ATAgnese Taticchi
Agnese Taticchi
SESonia Esposto
Sonia Esposto
GVGianluca Veneziani
Gianluca Veneziani
AMAntonio Minnocci
Antonio Minnocci
SUStefania Urbani
Stefania Urbani
MSMaurizio Servili
Maurizio Servili


4 September 2019 in Frontiers in Nutrition
Verified
Journal Article
Open access
PDF file
GVGianluca Veneziani
Gianluca Veneziani
SESonia Esposto
Sonia Esposto
ATAgnese Taticchi
Agnese Taticchi
RSRoberto Selvaggini
Roberto Selvaggini
BSBeatrice Sordini
Beatrice Sordini
MSMaurizio Servili
Maurizio Servili
The main operators of the olive oil sector are continuously involved in the development of the olive oil mechanical extraction process with the common aim of increasing both the quality and the oil extraction yield coupled with the potential enhancement of the working efficiency of the olive mill. The pulsed electric field (PEF) is a recently studied technological innovation for the improvement of olive oil extraction technology. The impact of the PEF on the diffusion of oil and microconstituents, determined by the disruption effects on olive cell tissues carried out by the non-thermal method, was evaluated. A PEF can increase the permeability and breaking of the cell membranes with a consequent positive result on oil extractability and quality, mainly related to the compounds involved in the health and sensory properties of extra virgin olive oil. The PEF was tested on three Italian olive cultivars (Carolea, Coratina, and Ottobratica). The results showed a positive impact of the new technology on the oil yield, with an increase ranging from 2.3 to 6%, and on the concentration of hydrophilic phenols, with an increase ranging from 3.2 to 14.3%, with respect to the control tests. The data of the main compounds related to the health and sensory notes also showed high variability as a consequence of the genetic origins of the olive cultivars.