Determination of Nut Characteristics and Biochemical Components of Some Pecan Nut Cultivars

Abstract

This study was carried out to determine some fruit properties and biochemical (total oil, fatty acid composition, protein, total phenolic compounds, total antioxidant capacity, total flavonoids) characteristics of different pecan nut cultivars (Burkett, Choctaw, Mahan, Western, Wichita) grown in the Antalya Region (BATEM). It was determined that some fruit properties and biochemical contents of the cultivars used in the study. In the study, it was determined that the shelled fruit weight varied between 7.78 g (Burkett) and 11.40 g (Mahan), kernel weight between 3.45 g (Burkett) and 5.99 g (Mahan), and kernel percentage between 44.2% (Burkett) and 55.6% (Western). The total oil content of the cultivars ranged from 67.70% (Mahan) to 73.95% (Wichita), protein content from 7.45% (Mahan) to 9.76% (Western), total phenolic compounds from 115.29 mg GAE g-1 (Choctaw) to 176.65 mg GAE/g (Burkett), total antioxidant capacity from 201.36 mg TEAC g-1 (Choctaw) to 487.89 mg TEAC g-1 (Burkett), and total flavonoids from 1.84 mg Catechin g-1 (Western) to 2.24 mg Catechin/g (Mahan). In the study, oleic acid was determined as the major fatty acid, and the lowest ratio of unsaturated fatty acids was found in the Wichita cultivar (90.73%), but the highest ratio was determined in the Western cultivar (91.43%).

Keywords

• Carya illinoensis
• Kernel percentage
• Total oil
• Antioxidant
• Total flavonoid

Bazı Pikan Ceviz Çeşitlerinin Meyve Özellikleri İle Biyokimyasal İçeriklerinin Belirlenmesi

Öz

Bu çalışma Antalya ekolojisinde (BATEM) yetişen pikan çeşitlerine ait (Burkett, Choctaw, Mahan, Western, Wichita) bazı meyve özellikleri ile bazı biyokimyasal özelliklerini (toplam yağ, yağ asitleri kompozisyonu, protein oranları, toplam fenolik madde içerikleri, toplam antioksidan kapasiteleri, toplam flavonoid içerikleri) belirlemek için yapılmıştır. Araştırmada kullanılan çeşitlerin bazı meyve özellikleri ile biyokimyasal içerikleri belirlenmiştir. Araştırmada kabuklu meyve ağırlıklarının 7.78 g (Burkett)-11.40 g (Mahan), iç meyve ağırlıklarının 3.45 g (Burkett)-5.99 g (Mahan), iç oranının % 44.2 (Burkett)- % 55.6 (Western) arasında değişiklik gösterdiği belirlenmiştir. Çeşitlere ait toplam yağ içerikleri %67.70 (Mahan)-%73.95 (Wichita), protein oranı % 7.45 (Mahan)-% 9.76 (Western), toplam fenolik madde içeriği 115.29 mg GAE/g (Choctaw)-176.65 mg GAE/g (Burkett), toplam antioksidan kapasitesi 201.36 mg TEAC/g (Choctaw)-487.89 mg TEAC/g (Burkett), toplam flavonoid içeriği ise 1.84 mg Catechin/g (Western)-2.24 mg Catechin/g (Mahan) arasında değişmiştir. Araştırmada oleik asit majör yağ asidi olarak öne çıkmış, doymamış yağ asitleri oranı en düşük Wichita çeşidinde (% 90.73), en yüksek Western çeşidinde (% 91.43) saptanmıştır.

Anahtar Kelimeler

• Carya İllinoensis
• İç oranı
• Toplam yağ
• Antioksidan
• Toplam flavonoid

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