Anthocyanins are compounds, which responsible for red, blue, purple colors of fruits and vegetables and they have water soluble properties. One of the natural color pigments are anthocyanins were placed in flavonoids group. This pigment has glycoside form and it has different properties according to the included sugar group and chemical composition. Anthocyanins which known to have positive effects on health bring attractive to the visual features products bring. The limited stability of anthocyanins may cause important problems for process and storage of fruit and vegetables included anthocyanins. The chemical structure and important factors related to the stability of anthocyanins were evaluated within the scope of this review.

In this study, it is aimed to produce Turkish delight by using fresh squeezed pomegranate juice obtained from two different sour and sweet pomegranate varieties in 20% and 30% of the water to be used in the formulation. Water soluble dry matter, pH, total acidity, total phenolic substance, total anthocyanin, colour, hardness value, water activity of Turkish delight added pomegranate juice were analysed and the samples were sensory evaluated. Soluble solids dry matter values of Turkish delight were; 71.25-81.90 °Brix; pH values; 3.50-4.78, hardness values; 0.75-1.64 N, total acidity values; 0.042-0.240g/100g, L values; 27.43-43.94, a* values; (-0.66)-(+14.45) and b* values; (-1.67)-(+4.08), the amount of the total phenolic matter; 201.33-760.33 mg GAE/kg, the amount of total anthocyanin; 10.01-42.15 mg Cy-3Gluc/kg determined, respectively. When the results of the sensory evaluation were examined, the highest average score in terms of many features was obtained with a sweet pomegranate juice (300 ml) obtained with hydraulic press. It can be concluded that the products rich in functional components and preferred by consumers can be produced.

In this study, the effect of different harvest period on fruit quality and phytochemical properties of short and day neutral strawberries was investigated. For this purpose, two day-neutral ('Fern', 'Kabarl') and four short day ('Camorosa', 'Sweet Charlie', 'Rubygem' and 'Festival') strawberry varieties were harvested at three different harvest period. Harvested fruits were analysed 15 and 30 days intervals for short and day-neutral varieties. Pomological analysis such as fruit size, firmness, fruit weight, titratable acidity (TA), total soluble solids (TSS), pH and total anthocyanin, total phenolic content and antioxidant capacity were studied. Results of the present study indicated that fruits from later harvest periods displayed smaller fruit size, lower pH and TSS content but higher TA and fruit firmness. Also, both short and day neutral varieties have higher phytochemical content at later harvest period in terms of total phenolics, total anthocyanin and antioxidant capacity.