Characterization of Fatty Alcohol and Sterol Fractions in Olive Tree

2010 ◽  
Vol 58 (13) ◽  
pp. 7539-7546 ◽  
Author(s):  
Mara Orozco-Solano ◽  
José Ruiz-Jimenez ◽  
María D. Luque De Castro
Keyword(s):  
Fatty Alcohol ◽  
Olive Tree

scholarly journals Analytical Characterization of Water-Soluble Constituents in Olive-Derived By-Products

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1299
Author(s):  
Pablo Doménech ◽  
Aleta Duque ◽  
Isabel Higueras ◽  
José Luis Fernández ◽  
Paloma Manzanares
Keyword(s):  
Olive Tree ◽  
Mediterranean Area ◽  
Water Soluble ◽  
Olive Pomace ◽  
Olive Leaves ◽  
Olive Stone ◽  
Olive Trees ◽  
Tree Pruning ◽  
By Products

Olive trees constitute one of the largest agroindustries in the Mediterranean area, and their cultivation generates a diverse pool of biomass by-products such as olive tree pruning (OTP), olive leaves (OL), olive stone (OS), and extracted olive pomace (EOP). These lignocellulosic materials have varying compositions and potential utilization strategies within a biorefinery context. The aim of this work was to carry out an integral analysis of the aqueous extractives fraction of these biomasses. Several analytical methods were applied in order to fully characterize this fraction to varying extents: a mass closure of >80% was reached for EOP, >76% for OTP, >65% for OS, and >52% for OL. Among the compounds detected, xylooligosaccharides, mannitol, 3,4-dihydroxyphenylglycol, and hydroxytyrosol were noted as potential enhancers of the valorization of said by-products. The extraction of these compounds is expected to be more favorable for OTP, OL, and EOP, given their high extractives content, and is compatible with other utilization strategies such as the bioconversion of the lignocellulosic fraction into biofuels and bioproducts.

scholarly journals Processing Effect and Characterization of Olive Oils from Spanish Wild Olive Trees (Olea europaea var. sylvestris)

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1304
Author(s):  
Francisco Espínola ◽  
Alfonso M. Vidal ◽  
Juan M. Espínola ◽  
Manuel Moya
Keyword(s):  
Phenolic Compounds ◽  
Volatile Compounds ◽  
Olive Tree ◽  
Extraction Yield ◽  
Point Of View ◽  
Human Consumption ◽  
Analytical Point ◽  
Wild Olive ◽  
Olive Trees

Wild olive trees have important potential, but, to date, the oil from wild olives has not been studied significantly, especially from an analytical point of view. In Spain, the wild olive tree is called “Acebuche” and its fruit “Acebuchina”. The objective of this work is to optimize the olive oil production process from the Acebuchina cultivar and characterize the oil, which could be marketed as healthy and functional food. A Box–Behnken experimental design with five central points was used, along with the Response Surface Methodology to obtain a mathematical experimental model. The oils from the Acebuchina cultivar meet the requirements for human consumption and have a good balance of fatty acids. In addition, the oils are rich in antioxidants and volatile compounds. The highest extraction yield, 12.0 g oil/100 g paste, was obtained at 90.0 min and the highest yield of phenolic compounds, 870.0 mg/kg, was achieved at 40.0 °C, and 90.0 min; but the maximum content of volatile compounds, 26.9 mg/kg, was obtained at 20 °C and 30.0 min. The oil yield is lower than that of commercial cultivars, but the contents of volatile and phenolic compounds is higher.

Identification, isolation, and characterization of Ole e 7, a new allergen of olive tree pollen

1999 ◽  
Vol 104 (4) ◽  
pp. 797-802 ◽  
Author(s):  
M.Luisa Tejera ◽  
Mayte Villalba ◽  
Eva Batanero ◽  
Rosalía Rodríguez
Keyword(s):  
Olive Tree ◽  
Tree Pollen ◽  
Isolation And Characterization

GENETIC CHARACTERIZATION OF OLIVE TREE (OLEA EUROPAEA L.) INTENDED FOR OIL PRODUCTION IN CORSICA

2002 ◽  
pp. 163-166 ◽  
Author(s):  
V. Bronzini de Caraffa ◽  
J. Maury ◽  
D. de Rocca Serra ◽  
J. Giannettini ◽  
G. Besnard
Keyword(s):  
Olea Europaea ◽  
Genetic Characterization ◽  
Oil Production ◽  
Olive Tree ◽  
Olea Europaea L ◽  
Olea Europaéa

Characterization of chemically modified biosorbents from olive tree pruning for the biosorption of lead

2013 ◽  
Vol 58 ◽  
pp. 344-354 ◽  
Author(s):  
Monica Calero ◽  
Antonio Pérez ◽  
Gabriel Blázquez ◽  
Alicia Ronda ◽  
Maria Angeles Martín-Lara
Keyword(s):  
Olive Tree ◽  
Chemically Modified ◽  
Tree Pruning

scholarly journals Chemical Characterization of Oleaster, Olea europaea var. sylvestris (Mill.) Lehr., Oils from Different Locations of Northeast Portugal

2020 ◽  
Vol 10 (18) ◽  
pp. 6414
Author(s):  
Nuno Rodrigues ◽  
Teresa Pinho ◽  
Susana Casal ◽  
António M. Peres ◽  
Paula Baptista ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Olea Europaea ◽  
Genetic Material ◽  
Chemical Characterization ◽  
Olive Tree ◽  
Tocopherol Content ◽  
Oil Composition ◽  
Breeding Programs ◽  
Olea Europaéa

Oleaster (Olea europaea var. sylvestris), or the wild olive tree, has great interest as a source of genetic material for olive breeding programs. Nevertheless, information about its oil composition is scarce. In the present work, the characterization of oleaster fruit morphology and oil chemical composition from three different tree populations in Northeastern Portugal (Moncorvo, Alijó and Vila Nova de Foz Côa) was performed. The three studied populations presented some morphological differences in the fruits, but similar oil chemical composition. Oleic acid (68.9–70.6%) was the most abundant fatty acid. High variability was observed in total tocopherol content, ranging between 263 and 503 mg/kg. Additionally, high amounts of total sterols were found, from 1742 to 2198 mg/kg of oil. A rich composition in phenols was found with 14 phenolic compounds identified. The evaluated parameters for oleander oils allowed discriminating the oils according to the geographical origin and were consistent with those commonly found in olive oil, showing that they are particularly rich in antioxidants and can be exploited in breeding programs to increase the amounts of bioactive compounds in cultivated oils.

scholarly journals Achievements and Challenges towards a Sustainable Conservation and Use of ‘Galega vulgar’ Olea europaea Variety

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1467
Author(s):  
Hélia Sales ◽  
João Nunes ◽  
Maria Carlota Vaz Patto
Keyword(s):  
Olive Oil ◽  
Olea Europaea ◽  
Production Systems ◽  
Oil Quality ◽  
Olive Tree ◽  
Life Cycle Thinking ◽  
Mediterranean Countries ◽  
Sustainable Conservation ◽  
Olea Europaéa

The cultivated Olea europaea L., or olive tree, is an ancient crop extremely relevant for the bioeconomy of Mediterranean countries, especially for Portugal. With orchard modernization, Portugal has the potential to become the third-largest producer of olive oil over the next decade. In this country, the main national variety is ‘Galega vulgar,’ characterized by an excellent olive oil quality, rusticity and tolerance to drought. Nevertheless, its production has suffered a reduction due to replacement by foreign varieties. The present narrative review offers an overall perspective of present gaps and challenges to the conservation and use of ‘Galega vulgar.’ Existing information about traditional and innovative olive production systems, and the importance of life cycle thinking approaches for a sustainable olive chain were synthesized, focusing particularly in the last 10 years. Furthermore, the olive molecular characterization advances and their breeding importance were also evaluated considering their application to this Portuguese variety. To ensure an efficient and sustainable exploitation of the ‘Galega vulgar,’ we propose that efforts should concentrate on the characterization of the existing variability and development of genotype to phenotype prediction tools, integrating detailed molecular marker genotypic and environmental characterization, to support better informed conservation and breeding decisions in a multi-environment context.

METEOROLOGICAL CHARACTERIZATION OF OLIVE TREE AREAS IN MENDOZA, ARGENTINA

2014 ◽  
pp. 349-356
Author(s):  
A.I. Caretta ◽  
C. Arjona ◽  
M. Rogé ◽  
M.L. Hernández
Keyword(s):  
Olive Tree
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