The aim of this study is to investigate the ability oleuropein-rich olive leaf extract (OLE) improve quality and oxidative stability sunflower oil subjected accelerated thermal oxidation. Oleuropein was major phenolic compound determined by HPLC-DAD with a content ranging from 20.81 32.56 mg·g-1 dry (DE). evaluation in vitro antioxidant capacity OLE showed good scavenging 2,2-diphenyl-1-picrylh...

This study presents the phenolic compounds profile of commercial Cornicabra virgin olive oils from five successive crop seasons (1995/1996 to 1999/2000; n = 97), determined by solid phase extraction reversed phase high-performance liquid chromatography (SPE RP-HPLC), and its relationship with oxidative stability, processing conditions, and a preliminary study on variety classification. The medi...

Olive leaves (OLs) are well known for being rich in oleuropein, their main bioactive molecule which has recently been attracting great interest from the scientific community due to its antiviral properties, including Covid-19 disease. Furthermore, high-temperature/short-time drying process found applications various plants and food processing, might be also implemented of OLs. This study focuse...

Covid-19 disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a global epidemic that affects millions of lives. To date, there no definitive cure for the and vaccination efforts with newly produced vaccines will take years to complete. In silico studies have suggested different flavonoids play an antiviral role against SARS-CoV-2. this study, based on in findings, w...

Tıbbi-aromatik bitkiler, koruyucu ve tedavi edici özelliklerinden dolayı yüzyıllardır kullanılmaktadır. Bunların fitokimyasal profillerinin belirlenmesi, kullanım alanlarının endüstriyel potansiyellerinin geliştirilmesi üzerine yapılan çalışmalara ilgi gittikçe artmaktadır. Bu bitkilerden biri de zeytin yaprağıdır. Zeytin yaprağı; Avrupa Akdeniz ülkelerinde (Türkiye, Yunanistan, İspanya, İtalya...

Bitterness and pungency are important parameters for olive oil quality. Therefore, two instrumental methods for evaluation of these taste attributes were developed. The first one is based on the photometric measurement of total phenolic compounds content, whereas the second one is based on the semiquantitative evaluation of hydrophilic compounds by high-performance liquid chromatography-mass sp...

The use of the products derived from the olive tree on human health dates back centuries. In several civilizations, the olive tree had and still has a very strong cultural and religious symbolism. Notably, the official seal and emblem of the World Health Organization features the rod of Asclepius over a world map surrounded by olive tree branches, chosen as a symbol of peace and health. Recentl...

A persistent recruitment of neutrophils in the bronchi of cystic fibrosis (CF) patients contributes to aggravate the airway tissue damage, suggesting the importance of modulating the expression of chemokines, including IL-8 during the management of the CF patients. Polyphenols rich extracts derived from waste water from olive mill, obtained by a molecular imprinting approach, have been investig...

The aim of the present study was to improve the recovery of polyphenols from olive leaves (OL) by optimizing a multistage extraction scheme; provided that the olive leaves have been previously steam blanched. The maximum total phenol content expressed in ppm caffeic acid equivalents was obtained at pH 2, particle size 0.315 mm, solid-liquid ratio 1:7 and aqueous ethanol concentration 70% (v/v)....