SOME CHEMICAL AND PHYSICAL QUALITIES OF COLD-ADAPTED PROMISING WALNUT GENOTYPES:TURKEY, BINGOL REGION

Yıl 2021, Cilt: 7 Sayı: 1, 36 - 45, 30.06.2021

Muharrem Ergun , Zahide Süslüoğlu

https://doi.org/10.51477/mejs.873851

Öz

The objective of the present study was to examine some physical and chemical shell and kernel attributes of promising walnut types selected from Bingol province in Turkey. Bingol province possesses a rich walnut population almost all of which are seedling-grown. Shell cracking resistance, kernel firmness, kernel percentage, pellicle and cotyledon color, total oil ratio, total phenol content, and antioxidant capacity as DPPH were analyzed and evaluated. Shell cracking resistance ranged from 8.73 to 34.83 kgf with an average value of 17.96 kgf. Kernel firmness was found to range from 0.87 to 1.34 kgf. Lightness (L*) of pellicle was in range of 47.06 and 63.01 while yellowness (b*) in the range of 25.02 and 31.98. Lightness (L*) of cotyledon changed mildly from 70.76 to 76.47 with a mean of 73.57 while cotyledon yellowness was in the range of 25.49 and 30.34. Total oil ratio was found to vary between 45.04 and 56.88%. Total phenol content was in the range of 80.97 and 142.91 mg.kg-1 with average value of 118.12 mg.kg-1. The DPPH free radical scavenging capacity of the genotypes vaguely varied from 64.14 to 70.52% with a mean of 69.04%. Finding especially shell cracking index, kernel percentage and pellicle color may contribute to walnut improvement programs.

Anahtar Kelimeler

Juglans regia, total oil, total phenolics,, antioxidant capacity,, kernel firmness, shell cracking index

Proje Numarası

Yok

Kaynakça

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