title: Fruit quality and olive leaf and stone addition affect Picual virgin olive oil triterpenic content.
abstract: The present research aimed to evaluate whether Picual virgin olive oil triterpenic compounds are affected by the addition of variable quantities of stones and leaves before processing or by fruit resting on the ground during 3 months. Results showed that stone addition did not influence triterpenic dialcohol content (uvaol and erythrodiol), whereas triterpenic acids (oleanolic and maslinic) increased significantly when 20 and 30% stones were added. Leaves added at 2% increased significantly oleanolic acid, maslinic acid, and erythrodiol content by 83, 41, and 36%, respectively. During fruit resting on the ground, olive oils showed no differences in uvaol content, a slight increase in erythrodiol, and a gradual increase in both oleanolic and maslinic acids, obtaining at the end of the experiment contents nearly 10- and 3-fold higher than control oils. These results confirm that olive oil triterpenic composition is modified by the factors analyzed.
authors.affiliation: IFAPA Centro Venta del Llano, Junta de Andalucia, Mengibar, Jaen, Spain. yosra.allouche.ext@juntadeandalucia.es
authors.forename: Yosra
authors.initials: Y
authors.lastname: Allouche
authors.forename: Marino
authors.initials: M
authors.lastname: Uceda
authors.forename: Antonio
authors.initials: A
authors.lastname: Jiménez
authors.forename: M Paz
authors.initials: MP
authors.lastname: Aguilera
authors.forename: José Juan
authors.initials: JJ
authors.lastname: Gaforio
authors.forename: Gabriel
authors.initials: G
authors.lastname: Beltrán
mesh_terms: D005511:Food Handling / Q000379:methods*; D005638:Fruit / Q000737:chemistry* / Q000254:growth & development; D031658:Olea / Q000737:chemistry*; D000069463:Olive Oil; D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry*; D014315:Triterpenes / Q000032:analysis*
chemical_list: D000069463:Olive Oil; D010938:Plant Oils; D014315:Triterpenes