The compositional quality and sensory properties of virgin olive oil from a new olive cultivar — I-77

2000 ◽  
Vol 69 (1) ◽  
pp. 37-46 ◽  
Author(s):  
A. Ranalli ◽  
G. Modesti ◽  
M. Patumi ◽  
G. Fontanazza
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Sensory Properties ◽  
Olive Cultivar ◽  
Compositional Quality

scholarly journals Variations of phenolic compounds and sensory properties of virgin olive oils from the variety 'Istrska belica'

ACTA IMEKO ◽  
2016 ◽  
Vol 5 (1) ◽  
pp. 22 ◽  
Author(s):  
Milena Bucar-Miklavcic ◽  
Terezija Golob ◽  
Vasilij Valencic ◽  
Erika Bester ◽  
Bojan Butinar ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Olive Oil ◽  
Virgin Olive Oil ◽  
Sensory Properties ◽  
The Other ◽  
Virgin Olive Oils ◽  
Olive Oils ◽  
Olive Variety ◽  
End Stage ◽  
Positive Properties

The olive variety 'Istrska belica' is well known for its numerous positive properties, such as resistance to low temperature and high oil content. The aim was to determine the variations in the levels of phenolic compounds and sensory properties during storage of 'Istrska belica' virgin olive oil. The profile of the phenolic compounds and sensory properties of 'Istrska belica' olive oil were further compared with those for other varieties, including 'Leccino' and 'Maurino'. The content of phenolic compounds of the olive oils decreased after 1 year and 2 years of storage. After 2 years of storage, the levels of oleuropein and the ligstroside derivates significantly decreased, while the end-stage compounds tyrosol and hydroxytyrosol increased. These data show that after 1 year of storage, the 'Istrska belica' olive oil preserves similar intensities for bitterness and pungency, and similar oleuropein and ligstroside derivates levels. In contrast to the other oils analysed, the intensities of bitterness and pungency of 'Istrska belica' olive oil decreased greatly only after 2 years of storage. Moreover, the phenolic compounds content, and oleuropein and ligstroside derivates levels, and the intensities of bitterness and pungency were the highest in fresh 'Istrska belica' olive oil, compared to the other olive oils analysed. Overall, 'Istrska belica' olive oil has important advantages over olive oil from other varieties that are grown in the Istria region.

Health and sensory properties of virgin olive oil hydrophilic phenols: agronomic and technological aspects of production that affect their occurrence in the oil

2004 ◽  
Vol 1054 (1-2) ◽  
pp. 113-127 ◽  
Author(s):  
M SERVILI ◽  
R SELVAGGINI ◽  
S ESPOSTO ◽  
A TATICCHI ◽  
G MONTEDORO ◽  
...  
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Sensory Properties

Virgin olive oil sensory properties: Comparing trained panel evaluation and consumer preferences

2013 ◽  
Vol 54 (2) ◽  
pp. 2091-2094 ◽  
Author(s):  
Stefano Predieri ◽  
Chiara Medoro ◽  
Massimiliano Magli ◽  
Edoardo Gatti ◽  
Annalisa Rotondi
Keyword(s):  
Olive Oil ◽  
Consumer Preferences ◽  
Virgin Olive Oil ◽  
Sensory Properties ◽  
Trained Panel ◽  
Panel Evaluation

Effect of olive cultivar on bioaccessibility and antioxidant activity of phenolic fraction of virgin olive oil

2017 ◽  
Vol 57 (5) ◽  
pp. 1925-1946 ◽  
Author(s):  
Angélica Quintero-Flórez ◽  
Gema Pereira-Caro ◽  
Cristina Sánchez-Quezada ◽  
José Manuel Moreno-Rojas ◽  
José J. Gaforio ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Olive Oil ◽  
Virgin Olive Oil ◽  
Olive Cultivar ◽  
Phenolic Fraction

scholarly journals Physico-chemical and sensory evaluation of virgin olive oils from several Algerian olive-growing regions

OCL ◽  
2021 ◽  
Vol 28 ◽  
pp. 55
Author(s):  
Malika Douzane ◽  
Mohamed-Seghir Daas ◽  
Amel Meribai ◽  
Ahmed-Hani Guezil ◽  
Abdelkrim Abdi ◽  
...  
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Principal Component ◽  
Great Variability ◽  
Olive Cultivar ◽  
Virgin Olive Oils ◽  
Olive Oils ◽  
Physical Chemical ◽  
Physico Chemical

Olive cultivar diversity is rich in Algeria but most remain unexplored in terms of quality traits. This work aimed to evaluate the physicochemical and organoleptic quality of twenty olive oil samples belonging to four Algerian cultivars (Chemlal, Sigoise, Ronde de Miliana and Rougette de Mitidja) collected throughout the national territory. Physical-chemical and sensory results showed that 60% of the oils belong to the extra virgin category, while 40% were classified as “virgin olive oil”. The results of the principal component analysis (PCA) revealed a great variability in fatty acids composition between the samples depending on the cultivar and origin. Oleic acid was the most abundant and varied between 64.84 and 80.14%. Extra virgin olive oils with quality attributes are eligible for a label. Rougette de Mitidja, Ronde de Miliana and Sigoise from Oran showed great potential.

Three-factor approach for balancing the concentrations of phenols and volatiles in virgin olive oil from a late-ripening olive cultivar

LWT ◽  
2018 ◽  
Vol 87 ◽  
pp. 194-202 ◽  
Author(s):  
Igor Lukić ◽  
Marin Krapac ◽  
Ivana Horvat ◽  
Sara Godena ◽  
Urška Kosić ◽  
...  
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Olive Cultivar ◽  
Three Factor

scholarly journals Determination of chemical parameters and storage stability of extra virgin olive oil extracted by Mobile Olive Oil Processing Unit

OCL ◽  
2020 ◽  
Vol 27 ◽  
pp. 6 ◽  
Author(s):  
Esmaeil Ghanbari Shendi ◽  
Dilek Sivri Ozay ◽  
Mucahit Taha Ozkaya ◽  
Nimeti Feyza Ustunel
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Sensory Properties ◽  
Sensory Profile ◽  
Total Phenol Content ◽  
Processing Unit ◽  
Oil Processing ◽  
One Year

The effects of storage time on the stability and quality of cold press extra virgin olive oils (EVOO) extracted from cv. Tavşan Yüreği locally grown in Antalya Region of Anatolia was investigated. The Mobile Olive Oil Processing Unit (TEM Oliomio 500-2GV, Italy) was designed and used for the monocultivar olive oil production. Changes on the free fatty acid, peroxide value, UV absorption values, total phenol content, phenolic and tocopherol profiles, and sensory properties of EVOO samples were determined for 12 months. Results showed that fresh “Tavşan Yüreği” EVOO was classified as EVOO declared by the International Olive Council (IOC) standards-based in terms of chemical and sensory properties. It had a sensory profile with an equilibrated taste of intense fruitiness and medium bitterness and pungency at the end of one year. Although positive attributes (fruitiness, bitterness, and pungency) slightly decreased, color values of EVOO changed from green to yellow. Although total phenols content of EVOO samples were 385.27 ± 0.908 ppm at the beginning of storage, it decreased to 327.58 ± 0.212 ppm after a year storing. Luteolin was the most abundant phenolic compound and its content decreased by 14% at the end of storage, while tyrosol content of EVOO increased from 12 to 36.17 ppm. After twelve months, α-tocopherol contents decreased 22.38%. Using Mobile Olive Oil Processing Unit increased oxidative stability and quality of extracted EVOO.

Sensory Properties of Virgin Olive Oil Polyphenols:  Identification of Deacetoxy-ligstroside Aglycon as a Key Contributor to Pungency

2003 ◽  
Vol 51 (5) ◽  
pp. 1415-1420 ◽  
Author(s):  
Paul Andrewes ◽  
Johanneke L. H. C. Busch ◽  
Teun de Joode ◽  
Anneke Groenewegen ◽  
Helene Alexandre
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Sensory Properties

scholarly journals Production and Maturation of Soaps with Non-Edible Fermented Olive Oil and Comparison with Classic Olive Oil Soaps

Fermentation ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 245
Author(s):  
Antonio Ferracane ◽  
Alessia Tropea ◽  
Fabio Salafia
Keyword(s):  
Fatty Acids ◽  
Olive Oil ◽  
Sodium Hydroxide ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Raw Material ◽  
Human Consumption ◽  
High Quality ◽  
Olive Cultivar ◽  
Soap Production

The study reports the alternative use of non-edible fermented olives for the production of high-quality natural soaps with a fast production process, low environmental impact, and without preliminary treatments for the raw material. Damaged olives, not used as food, were fermented naturally and the oil was extracted by mechanical extraction. The product obtained was not for human consumption due to its high acidity, but it had a low content of peroxides. The non-edible olive oil obtained and an extra virgin olive oil, produced from the same olive cultivar, were subjected to saponification with sodium hydroxide. The soaps were produced with complete (0% of non-neutralized fatty acids) and incomplete (5% of non-neutralized fatty acids) saponification; the amount of sodium hydroxide to be used was determined with the saponification index. The soaps were aged for six months by monitoring pH, color, and behavior in an aqueous solution. The results show that the olives’ fermentation improves and speeds up the soap production and maturation process since the oil obtained from fermented non-edible olives is more suitable for the saponification process than the oil obtained from non-fermented edible olives. Non-edible fermented olives can be used for obtaining natural and high-quality soaps, reusing drupes classified as food waste.

scholarly journals Triacylglycerols Composition and Volatile Compounds of Virgin Olive Oil from Chemlali Cultivar: Comparison among Different Planting Densities

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Mokhtar Guerfel ◽  
Mohamed Ben Mansour ◽  
Youssef Ouni ◽  
Flamini Guido ◽  
Dalenda Boujnah ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Olive Oil ◽  
Volatile Compounds ◽  
Virgin Olive Oil ◽  
Planting Density ◽  
Major Constituent ◽  
Volatile Fraction ◽  
Olive Cultivar ◽  
Olive Oils

The present study focused on the comparison the chemical composition of virgin olive oil samples obtained from fruits of the main Tunisian olive cultivar (Chemlali) grown in four planting densities (156, 100, 69, and 51 trees ha−1). Despite the variability in the triacylglycerols and volatile compounds composition, the quality indices (free fatty acids, peroxide value, and spectrophotometric indices K232and K270) all of the virgin olive oils samples studied met the commercial standards. Decanal was the major constituent, accounting for about 30% of the whole volatiles. Moreover, the chemical composition of the volatile fraction of the oil from fruits of trees grown at the planting density of 156, 100, and 51 trees ha−1was also characterised by the preeminence of 1-hexanol, while oils from fruits of trees grown at the planting density of 69 trees ha−1had higher content of (E)-2-hexenal (20.3%). Our results confirm that planting density is a crucial parameter that may influence the quality of olive oils.

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