Yazar "Mutlu-ingök, Ayşegül" seçeneğine göre listele

Listeleniyor 1 - 1 / 1
  • Küçük Resim Yok
    Öğe
    Antimicrobial and Antioxidant Properties of Hydrosol/Essential Oils Obtained from Orange (Citrus sinensis) Peels
    (Düzce Üniversitesi, 2019) Dikmetaş, Dilara Nur; Konuşur, Güliz; Mutlu-ingök, Ayşegül; Gülsünoğlu, Zehra; Karbancıoğlu-güler, Funda
    In this study, antimicrobial activity of essential oils and hydrosols from fresh orange peels which were cultivated in Dalaman, Köyceğiz and Finike against Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922) were examined by using the agar well diffusion method. In addition to antimicrobial activity, antioxidant activities of orange peel hydrosols were also determined by cupric reducing antioxidant capacity (CUPRAC) and radicals scavenging ability of DPPH (1,1-diphenyl-2-picrylhydrazyl) methods. Although, the inhibition zones of hydrosols against E. coli (ATCC 25922) and S. aureus (ATCC 25923) bacteria were smaller than essential oils, the difference between them was not statistically significant. The highest antimicrobial activity has been obtained from the peel of oranges from Dalaman. As a result of antioxidant capacity analysis, the concentration of hydrosols was found as 8 µg Trolox equivalent/mL and 3 µg Trolox equivalent/mL in CUPRAC and DPPH methods, respectively. Although, Dalaman hydrosols have an antioxidant activity with 3% inhibition percentages, when compared with the synthetic antioxidant BHT, it was observed at lower levels. On the basis of this experiment, hydrosol and essential oils obtained from oranges cultivated from 3 different regions have antioxidant and antimicrobial activities against Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922). However, antioxidant activity is lower when compared with the synthetic antioxidant.