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Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC

Cilt: 21 Sayı: 1 3 Nisan 2021
Faruk Demirkan *, Mustafa Bilici , İbrahim Yörük
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Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC

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Aim of study: The present study describes determination of vitamin E levels in Walnuts (Juglans regia L.) Grown in the Lake Van basin. Area of study: Adilcevaz, Bahçesaray, Çatak, Edremit, Gevaş regions in the Lake Van basin and in the center of Van. Material and methods: Walnuts were collected regions and stored in a deep freezer for analysis. On the day of analysis, 10 pieces of fresh and dried walnut samples belonging to each region were taken and broken, and a homogeneous mixture was obtained by pulverizing them and determined by HPLC. Main results: The amounts of α-Tocopherol of the samples in fresh walnuts were found to be 2.36 ± 0.01 µg/g, 5.01 ± 0.31 µg/g, 6.23 ± 0.15 µg/g, 7.20 ± 0.28 µg/g, 3.99 ± 0.46 µg/g, 5.05 ± 0.30 µg/g, respectively, and the amounts of γ-Tocopherol were found to be 23.80 ± 0.52 µg/g, 16.54 ± 1.08 µg/g, 14.82 ± 0.46 µg/g, 17.34 ± 0.78 µg/g, 11.91 ± 0.40 µg/g, 15.57 ± 0.90 µg/g, respectively, according to the regions. The amounts of α-Tocopherol in dried walnuts were found to be 5.13 ± 0.26 µg/g, 6.84 ± 0.31 µg/g, 7.58 ± 0.40 µg/g, 10.49 ± 0.51 µg/g, 8.65 ± 0.34 µg/g, 5.82 ± 0.19 µg/g, respectively, and the amounts of γ-Tocopherol were found to be 33.10 ± 1.65 µg/g, 21.97 ± 0.87 µg/g, 20.98 ± 0.83 µg/g, 29.19 ± 0.80 µg/g, 21.09 ± 0.24 µg/g, 18.41 ± 0.82 µg/g, respectively, according to the regions. Highlights: The results obtained in the study are considered, it is observed that the walnuts grown in Adilcevaz, Bahçesaray, Çatak, Edremit, Gevaş and Van-Center regions are of high quality.

Anahtar Kelimeler

Walnut, Vitamin E, Lake Van basin, HPLC, Tocopherol

Kaynakça

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Kaynak Göster

APA
Demirkan, F., Bilici, M., & Yörük, İ. (2021). Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC. Kastamonu University Journal of Forestry Faculty, 21(1), 90-94. https://doi.org/10.17475/kastorman.908674
AMA
1.Demirkan F, Bilici M, Yörük İ. Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC. Kastamonu University Journal of Forestry Faculty. 2021;21(1):90-94. doi:10.17475/kastorman.908674
Chicago
Demirkan, Faruk, Mustafa Bilici, ve İbrahim Yörük. 2021. “Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC”. Kastamonu University Journal of Forestry Faculty 21 (1): 90-94. https://doi.org/10.17475/kastorman.908674.
EndNote
Demirkan F, Bilici M, Yörük İ (01 Nisan 2021) Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC. Kastamonu University Journal of Forestry Faculty 21 1 90–94.
IEEE
[1]F. Demirkan, M. Bilici, ve İ. Yörük, “Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC”, Kastamonu University Journal of Forestry Faculty, c. 21, sy 1, ss. 90–94, Nis. 2021, doi: 10.17475/kastorman.908674.
ISNAD
Demirkan, Faruk - Bilici, Mustafa - Yörük, İbrahim. “Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC”. Kastamonu University Journal of Forestry Faculty 21/1 (01 Nisan 2021): 90-94. https://doi.org/10.17475/kastorman.908674.
JAMA
1.Demirkan F, Bilici M, Yörük İ. Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC. Kastamonu University Journal of Forestry Faculty. 2021;21:90–94.
MLA
Demirkan, Faruk, vd. “Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC”. Kastamonu University Journal of Forestry Faculty, c. 21, sy 1, Nisan 2021, ss. 90-94, doi:10.17475/kastorman.908674.
Vancouver
1.Faruk Demirkan, Mustafa Bilici, İbrahim Yörük. Determination of Vitamin E Levels in Walnuts (Juglans regia L.) Grown in the Lake Van Basin by HPLC. Kastamonu University Journal of Forestry Faculty. 01 Nisan 2021;21(1):90-4. doi:10.17475/kastorman.908674