Martín-Sánchez, A. M., Cherif, S., Ben-Abda, J., Barber-Vallés, X., Pérez-Álvarez, J. Á., & Sayas-Barberá, E.
The date agro-industry needs to find appropriate techniques to give value to their co-products. This study analyzes twelve intermediate food products (IFPs) from date co-products, Medjool and Confitera cv. at several ripening stages, blanched and unblanched, for their content in bioactive compounds (phenols, tannins, flavonoids, carotenoids and anthocyanins) and the antioxidant activity (AA). IFPs from […]
Comprehensive identification of walnut polyphenols by liquid chromatography coupled to linear ion trap–Orbitrap mass spectrometry
Epidemiologic studies and clinical trials have demonstrated consistent benefits of walnut consumption on coronary heart disease risk and other chronic diseases. Walnuts (Juglans regia L.) have been described previously as a rich source of polyphenols with a broad array of different structures. However, an accurate screening of its complete phenolic profile is still lacking. In […]
Colour, phenolic content and antioxidant capacity of some fruits dehydrated by a combination of different methods.
The objective of this study was to improve product quality of dehydrated fruits (apple, pear, papaya, mango) using combined drying techniques. This involved investigation of bioactivity, colour, and sensory assessment on colour of the dried products as well as the retention of the bio-active ingredients. The attributes of quality were compared in regard to the […]
Screening Natural Antioxidants in Peanut shell Using DPPH-HPLC-DAD-TOF/MS methods.
Peanutshell, a byproduct in oil production, is rich in naturalantioxidants. Here, a rapid and efficient method using DPPH-HPLC-DAD-TOF/MS was used for the first time to screen antioxidants in peanutshell. The method is based on the hypothesis that upon reaction with 1, 1-diphenyl-2-picrylhydrazyl (DPPH), the peak areas of compounds with potential antioxidant activities in the HPLC […]
In-vitro evaluation of the availability of ϖ-3 and ϖ-6 fatty acids and tocopherols from microencapsulated walnut oil.
Among the nuts, walnut is characterized by its important amount of oil (60–65% of flesh weight). The oil extracted from walnut exhibits high contents of polyunsaturated fatty acids ϖ-6 (linoleic acid) and ϖ-3 (linolenic acid), as well as relevant amounts of tocopherols (vitamin E). However, the addition of this type of oil in processed food […]
Phytochemical composition and antioxidant capacity of various botanical parts of the fruits of Prunus x domestica L. from the Lorraine region of Europe
Mirabelle plums represent a famous fruit from the Lorraine region, however little is known about their phytochemical composition. The oil of the fruit contained predominantly oleic acid (59%) and linoleic acid (29%). The total content of phenolic antioxidants in the whole fruits was 5.338 g/kg with 456 mg/kg (9%), 701 mg/kg (13%) and 4159 mg/kg […]
Changes in the phenolic and lipophilic composition; in the enzyme inhibition and antiproliferative activity of Ficus carica L. cultivar Dottato fruits during maturation
Fruits of Ficus carica cultivar Dottato from Italy were examined to assess how the stage of ripeness influences their chemical composition; antioxidant activity; pancreatic lipase inhibition and antiproliferative properties on C32 melanoma cells. First harvested fruits (June) showed a major content in furanocoumarins and pyranocoumarins whereas the fruits collected in September showed the highest polyphenolic […]
Profiling of bioactive compounds in cultivars of Runner and Valencia peanut market-types using liquid chromatography/APCI mass spectrometry
Peanuts are classified into four market-types (Runners; Spanish; Virginia and Valencia) Studies on their phytochemical composition have focused mainly on market-types other than Valencia. The objectives of this study are to evaluate the phytochemical composition of cultivars of Valencia and Runner market-types. Extracts of twenty-five peanut cultivars of Runner and Valencia market-types were analyzed using […]
Antioxidant Potential of Chestnut (Castanea sativa L.) and Almond (Prunus dulcis L.) By-products
The antioxidant properties of almond green husks (Cvs. Duro Italiano; Ferraduel; Ferranhês; Ferrastar and Orelha de Mula); chestnut skins and chestnut leaves (Cvs. Aveleira; Boa Ventura; Judia and Longal) were evaluated through several chemical and biochemical assays in order to provide a novel strategy to stimulate the application of waste products as new suppliers of […]
Phenolic compound content of fresh and dried figs (Ficus carica L.)
Eighteen fig cultivars commonly grown in the south-eastern Spain were collected in two crops (spring and summer) and their polyphenolic profile was determined. Fruit from the first crop generally showed higher phenolic values than those from the second. Higher concentrations of total phenolics were found in skin than in flesh. LC-UV-DAD/ESI-MSn analysis of the figs […]