Yazar "Karabulut, Abdulkadir" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim Yok
    Öğe
    Bayburt ilinde doğal olarak bulunan Berberis vulgaris L. ve Berberis crataegina DC. yabani meyvelerinin biyokimyasal karakterizasyonu
    (Bayburt Üniversitesi, 2018) Karabulut, Abdulkadir; Çakır, Özlem
    Yabani meyveler üzerine olan ilgi ve bu meyvelerin kullanım yoğunluğu son yıllarda müthiş bir şekilde artmaktadır. Bu kapsamdaki en önemli yabani meyvelerden biri de Berberis türleridir. Antioksidan aktivitesi ve biyokimyasal bileşiklerin yüksek içeriği nedeniyle, Berberis'ler değerli meyveler arasında kabul edilmektedir. Bu çalışmada, Bayburt ilinde doğal olarak bulunan B.vulgaris L. (Kızamık) ve B.crataegina DC. (Karamuk) meyvelerinin bazı fizikokimyasal özellikleri, antioksidan aktiviteleri, toplam fenolik madde miktarları, mineral madde içerikleri ve fenolik madde profilleri incelenmiştir. Bu kapsamda incelenen meyve örneklerinin sahip olduğu özellikler üzerinde, literatürde bulunan benzer çalışmalardan yararlanılarak genel bir değerlendirme yapılmıştır. Sonrasında ise üzerinde çalışılan iki Berberis türü kendi içinde karşılaştırılmıştır.
  • Küçük Resim Yok
    Öğe
    Comparison of two wild-grown Berberis varieties based on biochemical characterization
    (Wiley, 2020) Cakir, Ozlem; Karabulut, Abdulkadir
    In this study, some physicochemical properties, antioxidant activity, total phenolic content, mineral content, and phenolic profiles ofBerberis vulgarisandBerberis crataeginawild-grown in Bayburt are analyzed and compared. The level of total phenolic content inB. crataeginaDC. (73.48 mu g GAE/mg KM) was found higher thanB. vulgaris(71.54 mu g GAE/mg KM). According to three methods (beta-carotene, 2,2-diphenyl-1-picrylhydrazyl, and cupric reducing antioxidant capacity) the antioxidant activity of theB. crataeginais also higher. The change in color (L*,b*) is found statistically important (p < .05). There are no meaningful differences between the dry matter, C vitamin, pH value, and water activity (p > .05). It was observed that the fruit type has a great effect on brix and ash content (p < .05) and glucose, total sugar, and malic acid content. Chlorogenic acid is the dominant phenolic component for both types. It is followed by syringic, sinapic, and gallic acid inB. vulgarisand sinapic, syringic, and gallic acid inB. crataegina. Practical applications Wild fruits have been consumed for centuries in nutrition or pharmacology applications. They are known as rich resources of antioxidant and phenolic compounds. For that reason, wild fruits play an important role in the prevention and treatment of some diseases especially cardiovascular diseases and cancer. In this study, wild-grownB. vulgarisandB. crataeginawere analyzed in detail according to their bioactive properties and an assessment was made in terms of industrial and medical usability. This study reports mineral content, antioxidant activity, total phenolic content, and the phenolic acid profile (sinapic, syringic, gallic, chlorogenic, caffeic, vanillic,trans-ferulic,p-coumaric, and 4-hydroxybenzoic acids) of two Berberis varieties. According to results, these fruits may be used as natural flavoring and coloring material in food sector. Thanks to the active ingredients and minerals; these fruits may be used in pharmaceutical industry. They have a good potential for commercial exploitation and positive effects on health.