Search results for " Phenolics"
showing 7 items of 17 documents
Color and sensory changes in fresh cut pear during storage comparing ‘Coscia’ and ‘Butirra’, cultivated in southern Italy
2023
Pear (Pyrus communis L.) cultivars ‘Coscia’ and ‘Butirra’, cultivated in southern Italy are characterized very excellent by aroma and texture. Visual appearance is the primary descriptor that determines the acceptance of fresh-cut pears. Softening is another important quality parameter which considerably influences the acceptance of fresh-cut pears. The aim of this work was to study the effect of genotype on shelf life and quality of fresh-cut pear fruit harvested at commercial maturity stage. After cutting, pear fruit samples were stored under passive atmosphere at 5±1°C for 3, 5, 7 and 12 days. Fruit color (L*, a*, b*, ΔE), consistence, solid soluble, titratable acidity, CO2 and O2 packag…
Effects of 1-MCP on post harvest quality and internal browning of white-flesh loquat fruit during cold storage
2017
Introduction – Treatments with 1-methylcyclopropene (1-MCP), an inhibitor of ethylene perception, were investigated on white-flesh loquat fruit to extend its shelf life and to prevent chilling injury. Ma- terials and methods – The loquat (Eriobotrya japonica Lindl.) white-flesh fruits (cv. Claudia) were submitted to applications of 1-MCP at 1 °C for 20 h and at concentrations from 1 to 5 μL L . The treated fruits were stored at 1 °C for 21 days before removal to 20 °C for ripening (shelf life). Fruit quality was analyzed at harvest, at the end of each storage period (7, 14, 21 days at 1 °C). Results and discussion - The 1-MCP treatment slowed fruit softening depending on concentration, and …
Variability of sensory profile and quality characteristics for ‘Pesca di Bivona’ and ‘Pesca di Leonforte’ peach (Prunus persica Batsch) fresh-cut sli…
2015
Abstract Peach genotypes in Southern Italy include the white-flesh ‘Pesca di Bivona’ (‘Murtiddara’, ‘Bianca’, ‘Agostina’ and ‘Settembrina’) and the yellow-flesh ‘Pesca di Leonforte’ (‘Settembrina’, ‘Giallone’ and ‘Ottobrina’ ) landraces, with non-melting clingstone fruit, characterized by a persistent aroma and an excellent flavor that is highly appreciated by consumers. The aim of this work was to assess the suitability of these white- and yellow-flesh landraces to be processed as fresh-cut product with regard to the persistence of their quality and sensory profiles. Fruit of ‘Pesca di Bivona’ and ‘Pesca di Leonforte’ landraces were cut into slices and stored at 5 °C for 3, 5, 7, 12 d. Fre…
Uso di estratti antiossidanti di crusca di grano duro per ottenere una nuova pasta funzionale con l’approccio di arricchimento “da grano a grano”
2017
La crescente attenzione dei consumatori per gli alimenti funzionali ha stimolato le ricerche su nuovi tipi di pasta ottenuti con ingredienti in grado di migliorarne l’attività antiossidante, il profilo amminoacidico o il contenuto di acidi grassi polinsaturi e fibre, con risultati, però, non sempre soddisfacenti a causa di alterazioni delle proprietà tecnologiche e sensoriali della pasta (consistenza, tenuta alla cottura, odori e sapori inusuali). La crusca di grano duro contiene numerosi composti bioattivi, tra cui fenoli, carotenoidi e tococromanoli, che possono essere estratti con tecnologie green e reintegrati nell’impasto per ottenere prodotti con caratteristiche simili alla pasta trad…
Polyphenol Characterization and Antioxidant Activity of Grape Seeds and Skins from Sicily: A Preliminary Study
2022
The interest in the consumption of health-promoting foods has led to identifying derivatives of the wine industry as products to increase the functional properties of different foods or to design new functional foods. The main goal of this study is to characterize and valorize byproducts and wastes of Sicilian grapes as new sources of bioactive components, from the perspective of a circular economy and a biorefinery approach. In particular, this research investigated: 1. the total phenolic content and antioxidant activities and 2. the phenolic profiles of free and bound fractions of defatted grape seeds and red grape skins from Sicily. Defatted grape seeds (DGS) and red grape skins (RGSK) a…
Plant Specialized Metabolites in Hazelnut (Corylus avellana) Kernel and Byproducts: An Update on Chemistry, Biological Activity, and Analytical Aspec…
2019
Abstract Corylus avellana (hazelnut) is one of the most popular tree nuts on a worldwide basis. The main products of C. avellana are kernels, a nutritious food, with a high content of healthy lipids, contained in a hard shell. In recent years, along with the ongoing research carried out on hazelnut kernels, a growing interest has been addressed to the hazelnut byproducts including hazelnut skin, hazelnut hard shell, and hazelnut green leafy cover as well as hazelnut tree leaf. These byproducts deriving from the roasting, cracking, shelling/hulling, and harvesting processes have been found as a source of “phytochemicals” with biological activity. The aim of this review is to provide a compre…