Pomegranate juices obtained from ten pomegranate cultivars of Turkey were analysed for their sugars, organic acids and the other quality parameters including pH, total soluble solids, titratable acidity. Statistically significant differences determined among analysed. Citric acid was predominant all studied. Cultivar "Zivzik," one most popular cultivar in Turkey, showed best scores solids (16.9 ± 0.06 °Brix), glucose (84.18 0.42 g/l) fructose (83.34 0.81 g/l). classified into three groups...

Abstract Apricot kernels were roasted for various lengths of time (0–30 min) at 180 °C and changes in the oxidative stability, antioxidant capacity, color, as well level tocopherols fatty acids apricot kernel oil (AKO) monitored. While decreased, stability capacity AKO increased with roasting, probably due to formation antioxidative Maillard reaction products (MRPs) during roasting. Medium samples (15–20 found be more resistant deterioration. The from 30‐min sample was susceptible oxidation...

Five apricot (Prunus armeniaca L.) cultivars were examined throughout fruit development period to monitor the changes in quality characteristics including hardness, ºBrix, color, titratable acidity and pH. Changes amount of sugars (fructose, glucose sucrose) organic acids (citric, malic quinic) also determined by HPLC. The predominant sugar found be at initial ripening stages; however, sucrose or became end maturation. Sugar/ acid rate was highest Hasanbey (HB) cultivar during unripe period,...

Abstract During industrial processing of seeds and nuts to produce edible oils, roasting is often applied before oil extraction. Moreover, are generally consumed as snack food after appropriate roasting. These processes affect both the their extracted oils in many ways. Beside changes macronutrients such protein denaturation/degradation, oxidation, sugar pyrolysis Maillard reactions, minor constituents fatty acids, sterols, phenolic compounds tocols also affected by On other hand, studies...

In vitro antioxidant properties of 3 different extracts black mulberry (Morus nigra L.) were investigated. Acidified methanol, acidified water, and non-acidified methanol/water solutions used to prepare extracts. Different solvents caused protonation on anthocyanin structures, which predicted according their UV-VIS spectrum. Extracts indicated 2 main peaks at about ~280 ~520 nm with peak areas in The rank extracts' total phenolic content reducing power values both found be correlation...

This study was undertaken to determine the reducing characteristics, metal chelating capability, anti-lipid peroxidative and antiradical properties of propolis compared two widely used artificial antioxidants, Butylated Hydroxyanisole (BHA) Hydroxytoluene (BHT). The water ethanol extracts showed significantly a different degree chelating, radical scavenging activity power. In general, higher regarding these parameters. Synthetic antioxidants better activities than both for antioxidant...

The aim of this study was to investigate the antioxidative, antimicrobial and aroma characteristics most popular herbs, with local, namely Sirmo (Allium schoenoprasum [Liliaceae]), Mendi (Chaerophyllum macropodum [Apiaceae]), Siyabo (Silene vulgaris [Caryophyllaceae]), Yarpuz (Mentha spicata [Lamiaceae]) Heliz (Prangos ferulacea [Apiaceae]). Among various solvent extracts, methanolic extract Heliz, which had highest phenolic content showed 1,1-diphenyl-2-picrylhydrazyl (DPPH)...

With the aim of determining fatty acid (FA) selectivity lipases, a mixture oleic and monoacid triacylglycerols (TAGs) including tricaproin (T6), tricaprylin (T8), tricaprin (T10), trilaurin (T12), trimyristin (T14), tripalmitin (T16) tristearin (T18) was used as substrate in acidolysis performed hexane. Three immobilized namely, Lipozyme TL IM from Thermomyces lanoginosus, RM Rhizomucor miehei Novozym 435 Candida antarctica, were biocatalyst. The effects operating variables mole ratio to...

Abstract In the present study, mulberry seed oil (MSO) samples obtained from seeds of different varieties as well concentrated juice production waste (mulberry pomace) were investigated. Radical scavenging capacity, tocopherol and total phenolic content MSO determined. It was observed that contain unique amounts δ‐tocopherol varying between 1645–2587 mg kg −1 depending on variety. The secondary homologue γ‐tocopherol within a concentration range 299–854 oil. exhibited very high antioxidant...

The chain length selectivity of three immobilized lipases, namely, Lipozyme TL IM from Thermomyces lanoginosus, RM Rhizomucor miehei, and Novozym 435 Candida antarctica, was determined in acidolysis performed hexane using the homologous series even carbon number, saturated fatty acids (SFAs) 6−22 carbons. Triolein with individual SFAs or a mixture equimolar quantities used as substrate. effects operating variables including mole ratio acid to triolein, temperature, enzyme dosage, time on...