Bitter Taste of Virgin Olive Oil: Correlation of Sensory Evaluation and Instrumental HPLC Analysis

1989 ◽  
Vol 54 (1) ◽  
pp. 68-70 ◽  
Author(s):  
F. GUTIÉRREZ ◽  
M.A. ALBI ◽  
R. PALMA ◽  
J.J. RIOS ◽  
J.M. OLÍAS
2006 ◽  
Vol 29 (4) ◽  
pp. 431-441 ◽  
Author(s):  
SILVIA SILIANI ◽  
ALISSA MATTEI ◽  
LUCA BENEVIERI INNOCENTI ◽  
BRUNO ZANONI

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Meng Cui ◽  
Bohan Chen ◽  
Keman Xu ◽  
Aimilia Rigakou ◽  
Panagiotis Diamantakos ◽  
...  

AbstractExtra-virgin olive oil (EVOO) is a critical component of the Mediterranean diet, which has been found beneficial to human health. Bitterness is often positively associated with the presence of phenolic compounds in EVOO. There are twenty-five bitter taste receptors (TAS2Rs) in humans, each of which responds to specific bitter tastants. The identity of phenolic compounds and the bitter taste receptors they stimulate remain unknown. In this study, we isolated 12 phenolic and secoiridoid compounds from the olive fruit and the oil extracted from it, and tested their ability to stimulate bitter taste receptor activity, using a calcium mobilization functional assay. Our results showed that seven out of twelve studied compounds activated TAS2R8, and five of them activated TAS2R1, TAS2R8, and TAS2R14. The phenolic compounds oleuropein aglycon and ligstroside aglycon were the most potent bitter tastants in olive oil. TAS2R1 and TAS2R8 were the major bitter taste receptors activated most potently by these phenolic compounds. The results obtained here could be utilized to predict and control the bitterness of olive oil based on the concentration of specific bitter phenolics produced during the milling process of olives.


2013 ◽  
Vol 140 (4) ◽  
pp. 692-699 ◽  
Author(s):  
Ilaria Lauri ◽  
Bruno Pagano ◽  
Anders Malmendal ◽  
Raffaele Sacchi ◽  
Ettore Novellino ◽  
...  

2018 ◽  
Vol 21 ◽  
pp. 66-71 ◽  
Author(s):  
Gabriel D Fernandes ◽  
Ana Claudia Ellis ◽  
Adriana Gámbaro ◽  
Daniel Barrera-Arellano

1992 ◽  
Vol 69 (4) ◽  
pp. 394-395 ◽  
Author(s):  
F. Gutiérrez Rosales ◽  
S. Perdiguero ◽  
R. Gutiérrez ◽  
J. M. Olias

2020 ◽  
Vol 4 (1) ◽  
pp. 11 ◽  
Author(s):  
Biagi Angelo Zullo ◽  
Silverio Pachioli ◽  
Gino Ciafardini

Bitter taste is a positive sensory attribute that correlates with the concentration of phenols in olive oil. However, excessive bitterness can be perceived by consumers as a negative attribute. The aim of this investigation was to improve the process of debittering Don Carlo extra virgin olive oil (EVOO), which is rich in phenols, through blending with newly produced Leccino EVOOs, which can provide high oleuropeinolytic activity. The debittering process of blending Don Carlo EVOO with two types of Leccino EVOOs (decanter and settled EVOO), was carried out during three months of storage in canisters placed in fixed positions, or periodically inverted to prevent sedimentation. The reduction in phenolic concentration and bitterness index (K225 value) reached maximum values of 51% and 42% respectively in Don Carlo EVOO mixed with Leccino settled EVOO after three months of storage in periodically inverted containers. Analytical indices and sensory analysis, in accord with bitterness index (K225) results, confirmed a reduction or elimination of bitter taste in the oil samples depending on the type of Leccino EVOO added, and the sample storage method. All analytical results remained within parameters established by the European Community regulations for commercial merceological class EVOO.


Nutrients ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1164 ◽  
Author(s):  
Carla Cavallo ◽  
Gianni Cicia ◽  
Teresa Del Giudice ◽  
Raffaele Sacchi ◽  
Riccardo Vecchio

The presence of some healthy phytochemicals in food can be paired with high bitterness, and consumers have a widespread avoidance toward bitter-tasting food. This causes a gap between preferences and healthy needs of consumers. Therefore, this review collected insights from literature belonging to different discipline domains in order to have a broad view of the current state-of-the-art about biochemical aspects and consumers’ perceptions and preferences toward foods with an enhanced bitter taste. In detail, we focused on two core products of the Mediterranean diet: Extra-virgin olive oil (EVOO) and Brassicaceae, both characterized by specific phytochemicals having strong healthy properties and bitter-pungent taste. Results suggested that, although bitter taste is a general driver of dislike, some exceptions can be represented by: niches of consumers (e.g., innovators and organic buyers), foods consumed with specific purposes (e.g., coffee, chocolate, and alcoholic beverages). The level of bitterness perceived by the consumers can be modulated through exposure, information on benefits, and elements within the environment (e.g., music). Thus, these insights can be used to develop specific campaigns aimed at promoting bitter (healthy) food, considering also the key role that could be played by food pairings.


2020 ◽  
Vol 75 (15) ◽  
pp. 1740-1742
Author(s):  
Ramon Estruch ◽  
Rosa M. Lamuela-Raventós ◽  
Emilio Ros

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