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Walnut (Juglans Regia)- Morphology, Taxonomy, Composition and Health Benefits

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Fruits Grown in Highland Regions of the Himalayas

Abstract

Walnut is an edible drupaceous nut recognized worldwide for nutritious and health beneficial properties. The nut is botanically classified under angiospermic Juglandaceace family and is of prime commercial importance for the state of J&K. Walnut kernel being highly nutritious constitute a part of balanced and health-promoting diet. It has unique flavour and astringent taste. The nuts are high in fat, protein, vitamin and mineral and serve as an excellent source of a wide variety of flavonoids, phenolic acids and related polyphenols. The kernel of the nut is concentrated source of antioxidants. The oil of walnut kernel contains major fatty acids, such as oleic acid, linoleic acid and linolenic acids which possess excellent antioxidant properties. Besides, other known therapeutic effects of walnut range from cardiovascular protection to the promotion of better cognitive function to anti-inflammatory benefits. In addition, walnuts are helpful in treating asthma, rheumatoid arthritis and inflammatory skin disease such as eczema and psoriasis. Traditionally, walnuts were being used to treat cough, stomach ailments and cancer in Asia and European countries.

Family:

Juglandaceae

Genus:

Juglans

Species:

Juglans regia

Local name:

Akhroot

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References

  • Alasalvar, C., & Shahidi, F. (Eds.). (2008). Tree nuts: Composition, phytochemicals, and health effects. CRC Press.

    Google Scholar 

  • Çaǧlarırmak, N. (2003). Biochemical and physical properties of some walnut genotypes (Juglans regia, L.). Food/Nahrung, 47(1), 28–32.

    Google Scholar 

  • Chao, S. H., Greenleaf, A. L., & Price, D. H. (2001). Juglone, an inhibitor of the peptidyl-prolyl isomerase Pin1, also directly blocks transcription. Nucleic Acids Research, 29(3), 767–773.

    Article  CAS  Google Scholar 

  • Claudia, S. G., Carlos, C., Véronique, N., & Maria, I. P. (2015). Health benefits of walnut polyphenols: An exploration beyond their lipid profile. Critical Reviews in Food Science and Nutrition. https://doi.org/10.1080/10408398.2015.1126218.

  • Cole, G. M., & Frautschy, S. A. (2010). DHA may prevent age-related dementia. The Journal of Nutrition, 140(4), 869–874.

    Article  CAS  Google Scholar 

  • Crews, C., Hough, P., Godward, J., Brereton, P., Lees, M., Guiet, S., & Winkelmann, W. (2005). Study of the main constituents of some authentic hazelnut oils. Journal of Agricultural and Food Chemistry, 53(12), 4843–4852.

    Google Scholar 

  • Fatima, T., Umbreen, S., & Zameer Hussain, S. (2018). Nutritional and health benefits of walnuts. Journal of Pharmacognosy and Phytochemistry, 7(2), 1269.

    Google Scholar 

  • Geleijnse, J. M., de Goede, J., & Brouwer, I. A. (2010). Alpha-linolenic acid: Is it essential to cardiovascular health? Current Atherosclerosis Reports, 12(6), 359–367. https://nutritiondata.self.com/facts/nut-and-seed-products/3138/2.

  • Hu, F. B., Stampfer, M. J., Manson, J. E., Rimm, E. B., Colditz, G. A., Rosner, B. A., … & Willett, W. C. (1998). Frequent nut consumption and risk of coronary heart disease in women: Prospective cohort study. BMJ, 317(7169), 1341–1345.

    Google Scholar 

  • INC, International Nut and Dried Fruit Council. (2016–2017).

    Google Scholar 

  • Juranović Cindrić, I., Zeiner, M., & Hlebec, D. (2018). Mineral composition of elements in walnuts and walnut oils. International Journal of Environmental Research and Public Health, 15(12), 2674.

    Article  Google Scholar 

  • Khanduja, K. L., Avti, P. K., Kumar, S., Mittal, N., Sohi, K. K., & Pathak, C. M. (2006). Anti-apoptotic activity of caffeic acid, ellagic acid and ferulic acid in normal human peripheral blood mononuclear cells: A Bcl-2 independent mechanism. Biochimica et biophysica acta (bba)-general subjects, 1760(2), 283–289.

    Google Scholar 

  • Landrieu, I., De Veylder, L., Fruchart, J. S., Odaert, B., Casteels, P., Portetelle, D., … & Lippens, G. (2000). The Arabidopsis thaliana PIN1At gene encodes a single-domain phosphorylation-dependent peptidyl prolylcis/trans isomerase. Journal of Biological Chemistry, 275(14), 10577–10581.

    Google Scholar 

  • Lavedrine, F., Zmirou, D., Ravel, A., Balducci, F., & Alary, J. (1999). Blood cholesterol and walnut consumption: A cross-sectional survey in France. Preventive Medicine, 28(4), 333–339.

    Article  CAS  Google Scholar 

  • Logan, A. C. (2004). Lipids in health and disease, 3, 25.

    Google Scholar 

  • Manning, W. E. (1978). The classification within the Juglandaceae. Annals of the Missouri Botanical Garden, 65, 1058–1087.

    Google Scholar 

  • Martínez, M. L., Labuckas, D. O., Lamarque, A. L., & Maestri, D. M. (2010). Walnut (Juglans regia L.): Genetic resources, chemistry, by products. Journal of the Science of Food and Agriculture, 90(12), 1959–1967.

    Google Scholar 

  • Mitra, S. K., Rathore, D. S., & Bose, T. K. (1991). Walnut. Temperate fruits (Vol. 27, pp. 377–414). Horticulture and Allied Publishers, Chakraberia Lane, Calcutta, India.

    Google Scholar 

  • Muradoglu, F., Oguz, H. I., & Yildiz, K. (2010). Some chemical composition of walnut (Juglans regia L.) selections from Eastern Turkey. African Journal of Agricultural Research, 5(17), 2379–2385.

    Google Scholar 

  • Ouchi, N., & Walsh, K. (2007). Adiponectin as an anti-inflammatory factor. Clinica Chimica Acta, 380(1–2), 24–30.

    Article  CAS  Google Scholar 

  • Palacios, C. (2006). The role of nutrients in bone health, from A to Z. Critical Reviews in Food Science and Nutrition, 46(8), 621–628.

    Article  CAS  Google Scholar 

  • Poulose, S. M., Miller, M. G., & Shukitt-Hale, B. (2014). Role of walnuts in maintaining brain health with age. The Journal of Nutrition, 144(4), 561S–566S.

    Article  CAS  Google Scholar 

  • Prasad, R. B. N. (1994). Walnuts and Pecans. In Encyclopedia of food science, food, technology and nutrition, 4828–4831.

    Google Scholar 

  • Roodman, G. D. (1993). Role of cytokines in the regulation of bone resorption. Calcified Tissue International, 53(1), S94–S98.

    Article  CAS  Google Scholar 

  • Sara, H. S., & Reza, R. A. (2015). Morphometric study of the effect of walnut (Juglans regia) leaf extract on cerebrum malformation in offsprings of diabetic rats. Biomedical and Pharmacology Journal, 8(1), 467–475.

    Article  Google Scholar 

  • Savage, G. P. (2001). Chemical composition of walnuts (Juglans regia L.) grown in New Zealand. Plant Foods for Human Nutrition, 56(1), 75–82.

    Google Scholar 

  • Sen, S. (2011). Walnut, cultivation, nutritional value, folklore. ICC Publication, Ankara, Turkey, 220.

    Google Scholar 

  • Teymouri, S. M., Montaser, K. S., Ghafarzadegan, R., & Haji, A. R. (2010). Antidiabetic effects of juglans regia leave’s methanolic extract on alloxan-induced male wisrar rats.

    Google Scholar 

  • Westwood, M. N. (1993). Temperate zone pomology: Physiology and culture (3rd ed., p. 553). Timber Press.

    Google Scholar 

  • Zhang, L. L., Wang, Y. M., Xu, M., Wu, D. M., & Chen, J. H. (2014). Quantification of gallic acid and ellagic acid from the seed of Cornus officinalis by UHPLC method and their antioxidant activity. Chemical Engineering Communications, 201(4), 545–556.

    Article  CAS  Google Scholar 

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Hussain, S.Z., Naseer, B., Qadri, T., Fatima, T., Bhat, T.A. (2021). Walnut (Juglans Regia)- Morphology, Taxonomy, Composition and Health Benefits. In: Fruits Grown in Highland Regions of the Himalayas. Springer, Cham. https://doi.org/10.1007/978-3-030-75502-7_21

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