Year 2020, Volume 23 , Issue 6, Pages 1435 - 1440 2020-12-31

Alanya Ekolojik Koşullarında Yetiştirilen Hass ve Fuerte Avokado Çeşitlerinin Bazı Fitokimyasal İçerikleri ile Antioksidan Aktivitelerinin Belirlenmesi
Investigation of Some Phytochemical Contents and Antioxidant Activities of Hass and Fuerte Avocado Cultivars Grown in Alanya Ecological Conditions

Zehra Tuğba MURATHAN [1] , Armagan KAYA [2]


Avokado meyvesi, içerisindeki besinsel öğelerin çeşitliliği ve zenginliği nedeniyle birçok diyette uzmanlar tarafından önerilmektedir. Meyve eti çok düşük oranda şeker içerirken diyet lifi, doymamış yağlar, birçok vitamin ve mineral madde ile biyoaktif özelliğe sahip çok sayıda fitobileşen içermektedir. Bu çalışmada, Alanya ekolojik koşullarında yetiştirilen Hass ve Fuerte avokado çeşitlerinin meyve ve yaprak dokularında toplam fenolik madde, toplam flavanoid madde, toplam askorbik asit ve pigment içerikleri ile antioksidan kapasiteleri belirlenmiştir. Çalışma sonucunda yaprak ekstraktlarının meyve ekstraktlarına oranla daha yüksek toplam fenolik madde, toplam flavanoid madde, toplam askorbik asit içeriği ile antioksidan kapasiteye sahip oldukları belirlenmiştir. Ekstraktların ABTS (2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radikali süpürücü aktivitelerinin %35.9 (Hass meyve ekstraktı) ile %60.5 (Fuerte yaprak ekstraktı), DPPH (1,1-diphenyl-2-picrylhydrazyl) radikali süpürücü aktivitelerinin %30.7 (Hass meyve ekstraktı) ile %51.4 (Fuerte yaprak ekstraktı), FRAP (Demir iyonu indirgeyici antioksidan güç) değerlerinin ise 130.8 µmol FeII g-1 (Hass meyve ekstraktı) ile 267.5 µmol FeII g-1 (Fuerte yaprak ekstraktı) arasında değiştiği belirlenmiştir. Ekstraktlarda klorofil a değerlerinin klorofil b değerlerine göre daha yüksek olduğu tespit edilmiştir. En yüksek toplam klorofil içeriği Hass ve Fuerte çeşitlerinin yaprak ekstraktlarında (sırasıyla 22.89 ve 21.72 µg g-1) tespit edilmiştir. Toplam karotenoid içeriği yine yaprak örneklerinde meyve örneklerine göre daha yüksek bulunurken, bu değerlerin 0.07 µg g-1 (Hass meyve ekstraktı) ile 4.16 µg g-1 (Fuerte yaprak ekstraktı) arasında değiştiği belirlenmiştir.

Avocado is recommended by experts in many diets because of the variety and richness of nutritional elements in fruit. Fruit flesh contains very low levels of sugar, while it contains dietary fiber, unsaturated fats, many vitamins and minerals, and a large number of phytochemical compounds with bioactive properties. In this study, total phenolic, total flavanoid, total ascorbic acid and pigment contents with antioxidant capacities were determined based on three different methods of leaf and fruit methanolic extracts of Hass and Fuerte avocado cultivars grown in Alanya ecological conditions. As a result of the study, it was determined that leaf extracts contain higher total phenolic content, total flavanoid content, total ascorbic acid content and antioxidant capacity than those of fruit extracts. ABTS (2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity of extracts was 35.9% (Hass fruit extract) and 60.5% (Fuerte leaf extract), DPPH radical scavenging activity was (1,1-diphenyl-2-) picrylhydrazyl) between 30.7% (Hass fruit extract) and 51.4% (Fuerte leaf extract), FRAP (Ferric ion reducing antioxidant power) value was 130.8 µmol FeII g-1 (Hass fruit extract) and 267.5 µmol FeII g-1 (Fuerte leaf extract) has been determined. The chlorophyll a values of the extracts were found to be higher than the chlorophyll b values. The highest total chlorophyll content was found in leaf extracts of Hass and Fuerte cultivars (22.89 and 21.72 µg g-1, respectively). Total carotenoid content was higher in leaf samples than fruit samples and it was found that it ranged from 0.07 µg g-1 (Hass fruit extract) to 4.16 µg g-1 (Fuerte leaf extract).

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Primary Language tr
Subjects Agriculture
Journal Section RESEARCH ARTICLE
Authors

Orcid: 0000-0002-1468-7240
Author: Zehra Tuğba MURATHAN (Primary Author)
Institution: Malatya Turgut Özal Üniversitesi
Country: Turkey


Orcid: 0000-0002-6776-3497
Author: Armagan KAYA
Institution: ALANYA ALAADDİN KEYKUBAT ÜNİVERSİTESİ
Country: Turkey


Dates

Application Date : January 14, 2020
Acceptance Date : May 30, 2020
Publication Date : December 31, 2020

APA Murathan, Z , Kaya, A . (2020). Alanya Ekolojik Koşullarında Yetiştirilen Hass ve Fuerte Avokado Çeşitlerinin Bazı Fitokimyasal İçerikleri ile Antioksidan Aktivitelerinin Belirlenmesi . Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi , 23 (6) , 1435-1440 . DOI: 10.18016/ksutarimdoga.vi.674647