Changes in the biosynthesis of individual carotenoid pigments have been investigated during fruit ripening five cultivars red pepper (Capsicum annuum L.): Mana, Numex, Belrubi, Delfin, and Negral (a chlorophyll-retaining mutant when ripe). The study was carried out throughout process, with special emphasis on ripe stage, to discover possible differences between characterize these by their pattern content for selecting best varieties breeding programs. Ripening showed typical characteristic...

In this paper the extraction methods of virgin almond oil and its chemical composition are reviewed. The most common for obtaining solvent extraction, with supercritical fluids (CO2) pressure systems (hydraulic screw presses). best industrial performance, but also worst quality is achieved by using solvents. Oils obtained method cannot be considered oils as they treatments. Supercritical fluid results in higher at a very high price. Extraction pressing becomes option to achieve an affordable...

Drying is an important operation in pistachio processing to ensure good quality. Study of drying parameters since they affect the quality, mainly color, flavor and nutritional value. Hence, could also oils. Pistachios variety Larnaka were dried at different temperatures (room, 30, 50, 70°C). Changes physicochemical quality parameters, stability, chemical composition extracted oils evaluated. Sensory evaluation was performed. An increase peroxide value observed when pistachios 70°C or screw...

Abstract The different physicochemical and colorimetric parameters which define fruit quality were evaluated in 12 varieties of tomato ( Lycopersicon esculentum Mill) from several localities SE Spain, using three widely grown commercial (F 1 ) hybrids as controls. Several local identified with better scores for specific (fruit firmness, soluble solids content, pH, citric malic acids lycopene) than the commercially hybrids. These may find a place market distinctive fruits or source material...

Nuts are nutrient dense foods especially appreciated for the fatty acids composition of oil fraction and other bioactive compounds, like polyphenols or sterols. Almond, pistachio, walnut oils were extracted by two pressure systems (hydraulic press screw press) in order to obtain virgin oils. A comparison was performed from different sources. Although main components (fatty sterols) did not vary according system used, some differences among three types nut found. Almond pistachio samples...

ABSTRACT The coloring power and bitterness of ground saffron stored at 40°C with relative air humidity 75% were investigated. loss color followed first order kinetics the second kinetics.

ABSTRACT Physical–chemical quality of 14 garlic cultivars grown in Spain was analyzed, and the were classified into three types: purple, white Chinese, order to show possible differences among them. The most useful instrumental color parameter discriminate different types lightness ( L *). high pH value purple‐type cultivar Moraluz, content d ‐glucose, ‐fructose total sugars Chinese‐type quite remarkable. consumer judges preferred pungency Morasol, while Chino Sprint stood out for its...

Abstract BACKGROUND Almond and pistachio oils can be considered as interesting products to produce commercialize owing their health‐promoting properties. However, these properties are not consistent because of the differences that appear in a result genotype crop year. The analysis variations origin is decisive ensuring commercial future prospects nut oils. RESULTS Although significant variability has been reported almond year interaction between genotype, itself remains main factor...

For the first time evolution of color 13 paprika pepper varieties, some them with chlorophyll-retaining genes, is studied, from moment fruit considered completely formed until harvesting, i.e., during ripening. The final quality each variety was evaluated by determining extractable American Spice Trade Association (ASTA) and tint. use chromatic attributes L*, a*, b* suggested Commission Internationale de l'Eclairage (CIE), CIELAB space, made it possible to follow which takes place ripening...

ABSTRACT Seven table potato varieties were studied for pH, soluble solids content, moisture, firmness, color, external appearance of raw tubers and flavor texture the fried boiled product. Monalisa was most appreciated variety regarding appearance, Bartina preferred product while Victoria Desiree best potatoes. The different scores by depending on frying or boiling suggest a specific use each variety. Soluble moisture determinations showed minimal differences between varieties. Firmness...

One of the most common insect pests is Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), which affects different food commodities. A new effective approach for management development formulations based on essential oils (EO). However, few works informed about relationship between insecticidal activity EO or loaded polymeric nanoparticles (EOPN) and post-application temperature. In our work, palmarosa [Cymbopogon martinii (Roxb.) Watson], geranium (Geranium maculatum L.), peppermint...

Purpose The high content of unsaturated fatty acids and the elevated presence bioactive compounds make pistachio oil a healthy product with great commercial potential. One primary constraints for its production is lack information regarding extraction from an industrial perspective. purpose this paper to ensure success at scale, attention should be paid effect main procedures on characteristics oil, consumer acceptance these oils their cost. Design/methodology/approach Comparison evaluation...

The grasshopper Eyprepocnemis plorans subsp. harbors a very widespread polymorphism for supernumerary (B) chromosomes which appear to have arisen recently. These behave as genomic parasites because they are harmful the individuals carrying them and show meiotic drive in initial stages of population invasion. rapid increase B chromosome frequency at intrapopulation level is thus granted by drive, but its spread among populations most likely depends on interpopulation gene flow. We analyze...

The quality of six paprika pepper varieties, cultivated in a greenhouse and the open air, has been studied. There were differences their colours with regard to total content pigments (ASTA unities) quotient absorbance spectra values for red yellow (tint). Using colorimetric measurements, directly carried out on surface ripe fruits, varieties are clearly separated CIELAB space colour, depending growing conditions. coordinates a* b* a*/b* greenhouse, allow predict concentration resulting...

We analyzed the distribution of 2 repetitive DNAs, i.e. ribosomal DNA (rDNA) and a satellite (satDNA), on B chromosomes found in 17 natural populations grasshopper <i>Eyprepocnemis plorans</i><i>plorans </i>sampled around western Mediterranean region, including Iberian Peninsula, Balearic Islands, Sicily, Tunisia. Based amount these 4 types variants were found: B<sub>1</sub>, showing an equal or higher rDNA than satDNA, 3 other variants,...