This study investigated the effects of high hydrostatic pressure (HHP) at 400-600 MPa/25 and 50°C/20 min on physicochemical qualities and bioactive compounds retention in Yanang juice mixed with 10% (v/v) longan flower-honey. The results showed that the parameter (brightness) significantly increased in pressurized juices when compared to fresh juice, while the greenness (-a*) of all processed j...

Commercial juices of sweet pomegranates and fresh juices of sour-sweet pomegranates were analysed for organic acids, sugars, antioxidant activity, volatile composition, sensory profile and consumer liking. Organic acids and sugars were analysed by HPLC, while volatiles were extracted using hydrodistillation and analysed by GC-MS and GC-FID. Malic acid was predominant in sweet juices while citri...

Grape juices are an important source of food antioxidants. Unfortunately, there is little data about the mineral composition and the antioxidant, mutagenic and antimutagenic activities of grape juice in eukaryote cells. We evaluated the mineral contents (Mg, Ca, Mn, Fe, Cu, Zn, Si, S, Cl) of grape juices, the antioxidant, mutagenic and/or antimutagenic activities of the juices in the yeas...

Subjects rated their liking for (Experiment 1) and their preferences between (Experiment 2) weakly hedonically positive test paintings. Some subjects first saw and rated some hedonically negative context paintings. Those subjects reported greater liking for (Experiment 1) and larger preferences between (Experiment 2) the test paintings than did subjects who saw and rated only the test paintings...

dicated that the developed flavor descriptive analysis procedure can be used either in Spain or USA with similar outcomes. Orange juices prepared using similar processes in both countries had comparable flavor characteristics. Thus, hand-squeezed orange juices were described with citrus fruits, green and floral attributes. Pasteurized products were also described as citrusy, green and sweet fru...

The purpose of this study was to analyze polyphenol rich beverages (vitamin enhanced waters (VEWs), fruit juices and berry juices) to determine free polyphenol concentrations and free polyphenols per Calorie based on a serving size. The Folin-Ciocalteu reagent was used in a colorimetric assay based on a catechin standard. Fruit and berry juices contained, on average, more than eight-times the c...

Five commercial juices, representing the five clusters of this juice, were characterized before and after maceration with 10% pomegranate albedo (controland albedo treated (AT)-juices, respectively). Commercial juices were macerated with albedo homogenate for 24 h, and then the albedo was removed. Total soluble solids, titratable acidity, maturity index (MI), total phenolic content (TPC), volat...

Human intestinal absorption and drug metabolism vary to a large extent among individuals. For example, CYP3A4 activity has large individual variation that cannot be attributed to only genetic differences. Various flavonoids in vegetables, such as kaempferol and quercetin, possess inhibitory effects, and some vegetable and fruit juices have also been found to inhibit CYP3A4 activity. Therefore, ...

The bioactivity of Israeli Jaffa blond (Shamouti) fresh orange and Israeli Jaffa red Star Ruby (Sunrise) grapefruit juices was investigated in vitro and in vivo. The contents of bioactive compounds of these juices were determined. The influence of bioactive compounds on plasma lipids and plasma antioxidant activity in rats fed cholesterol-containing and cholesterol-free diets was assessed. Sign...

This study was conducted to examine the effects of grape maturity and processing method on the quality of juices from four French-American hybrid wine grape cultivars (Seyval, Vidal, Aurore, and Chancellor). The flavor of juices from more mature grapes (soluble solids:acidity ratio of 20 30, pH 3.45 3.60) was rated higher than the flavor of less mature grapes (soluble solids:acidity ratio of 13...