Muhammad Ali
National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
Amin Ullah
Department of Plant Breeding and Genetics, NWFP Agricultural University, Peshawar, Pakistan
Hidayat Ullah
Department of Genetics, Hazara University, Mansehra, Pakistan
Fawad Khan
National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
Syed Muhammad Ibrahim
National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
Liaqat Ali
National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
Shakil Ahmad
National Center of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore, Pakistan
ABSTRACT
Walnuts (Juglans regia L.) are rich source of a number of important nutrients that have a very positive effect on the human health. In this study nuts of six different walnut cultivars grown in Pakistan namely Chitral-1, SW-1, Chitral-3, Chitral-2, SW-3 and Dir-2 were selected and evaluated for their physical properties, proximate and mineral composition. The nut length was found in the range of 35.17-41.37 mm, nut diameter (31.72 mm-34.32 mm), Nut thickness (32.21-35.10 mm), nut weight (10.30 g-19.22 g), Kernel weight (5.81 g-9.24 g), Kernel ratio (43.19-65.14%), shell thickness (0.81-1.35 mm), moisture content (2.76-4.20%), ash content (1.27-1.95%), fats (63.54-69.92%), protein (15.96-19.15%) and total carbohydrates (8.04-12.14%). Kernels of Dir-2 and Chitral-2 cultivars were determined to contain high protein content (>18% protein) while Chitral-1 and SW-1 contain high carbohydrates content of >10%. The energy value of the kernels of these cultivars was determined in the range of 698.10-732.44 Kcal/100 g, which shows that the fruits of these varieties are rich source of energy. In minerals the level of sodium is 40.9-64.5 ppm, K (3551-4827ppm), Ca (925-1250 ppm), Fe (30.08-41.20 ppm), Zn (11.75-25.5 ppm), Mg (1059-1765 ppm), Cu (1.96-2.75 ppm) and Pb (0.69-1.06 ppm). The fruit properties indicates that Chitral-3, Chitral-2 and SW-3 are superior walnut cultivars in terms of their physical properties than the rest of the cultivars and they could be cultivated and developed as standard varieties in Pakistan. Moreover, kernels of all the cultivars studied are rich in K, Ca, Mg, Na and Fe.
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How to cite this article
Muhammad Ali, Amin Ullah, Hidayat Ullah, Fawad Khan, Syed Muhammad Ibrahim, Liaqat Ali and Shakil Ahmad, 2010. Fruit Properties and Nutritional Composition of Some Walnut Cultivars Grown in Pakistan. Pakistan Journal of Nutrition, 9: 240-244.
DOI: 10.3923/pjn.2010.240.244
URL: https://scialert.net/abstract/?doi=pjn.2010.240.244
DOI: 10.3923/pjn.2010.240.244
URL: https://scialert.net/abstract/?doi=pjn.2010.240.244
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