Yazar "Hasanghasemi, Ali" seçeneğine göre listele

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    Determination of Antioxidant Activity of Sunflower Growing in Hayrabolu District of Tekirdağ Province
    (Namık Kemal Üniversitesi, Ziraat Fakültesi, 2014) Afacan, Ayşe; Adiloğlu, Sevinç; Hasanghasemi, Ali; Sağlam, Canan
    Sunflower, apart being the plant of cooking oil, is grown as an ornamental plant in parks and gardens. Protein, carbohydrate and fat is found in sunflower pulp utilized as animal feed apart being used as cooking oil. While its seeds are being used as snacks, its stems and slabs are used in the paper industry. In this study, sunflower widely cultivated in Tekirdag province, Tunca MR (5580) sunflower variety grown in the basic soils of Banarli Village in Hayrabolu District and antioxidant activities of plant extracts during physiological and harvest periods were researched with B-carotene Linoleic Acid Method and it was compared with Butylated Hydroxy Toluene (BHT), which is a synthetic antioxidant, and Trolox as a standard. Total antioxidant activity was determined with ?-carotene Linoleic Acid Method. In this study, however, antioxidant capacities of sunflowers were compared by considering their seeds in terms of soil and climate.
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    Determination of Physiological and Harvest Antioxidant Activities of Sunflower Plants Growing in Alkaline Soils with DPPH Method
    (Taylor & Francis Ltd, 2014) Makasçı Afacan, Ayşe; Adiloğlu, Sevinç; Hasanghasemi, Ali; Sağlam, Canan
    Various methods are employed to evaluate the antioxidant capacities of herbal products and foods. In this study, sunflower widely cultivated in Tekirdag region, Tunca MR(5580) sunflower variety grown in the alkaline soils of the Banarli Village in the Hayrabolu County and antioxidant activities of sunflower plant seeds during physiological and harvest periods were researched. It was compared with Butylated Hydroxy Toluene (BHT), a synthetic antioxidant, which is widely used in the food industry. Antioxidant activity was determined by DPPH method. Free radical scavenging activity of methanol extracts of sunflower was measured by 1,1-diphenyl-2-picryl-hydrazyl using the method. All analysis was run in triplicate and averaged. Physiological period of the examples in the antioxidant activity of 28 %, while in the period of harvest activity as 25 %.