Proximate composition, minerals and fatty acid composition of Juglans Regia L. genotypes and cultivars grown in Turkey

Yerlikaya, Cemile; Yücel, Sevil; Ertürk, Ümran; Korukluoğlu, Mihriban

doi:10.1590/s1516-89132012000500006

Cited by 39 publications

(24 citation statements)

References 17 publications

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“…Conversely, Malvolti et al obtained a lower kernel oil content, as the average of 190 walnut genotypes grown throughout the Italian peninsula, than those obtained in the present study. The range was similar to those reported by Ozkan and Koyuncu, Çağlarırmak, Dogan and Akgul and Yerlikaya et al , who analyzed selections collected in Anatolia (57–71%).…”

Section: Resultssupporting

confidence: 89%

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Kernel oil content and oil composition in walnut (Juglans regia L.) accessions from north‐eastern Italy

et al. 2017

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The wide variation in fatty acid content and composition allows superior accessions to be selected for diffusion among growers. A suitable strategy would be to make a selection against PUFA content rather than just for high oleic acid. In addition, the selected high oleic accessions, before being utilized per se or as donor parents in breeding programs, have to demonstrate they are not adversely affected by the environment. © 2017 Society of Chemical Industry.

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Section: Resultssupporting

confidence: 89%

“…and Koyuncu, 9 Çaglarırmak, 26 Dogan and Akgul 27 and Yerlikaya et al, 28 who analyzed selections collected in Anatolia (57-71%).…”

Section: Moisture Contentmentioning

confidence: 99%

Kernel oil content and oil composition in walnut (Juglans regia L.) accessions from north‐eastern Italy

et al. 2017

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“…[ 113,120,121 ] It is worth noting that high oleic acid contents (up to 40%), and consequently lower levels of linoleic and linolenic acids, have been found in some Turkish walnut provenances. [ 111,122 ] This opens up the possibility of modifying the fatty acid composition by breeding in order to enhance the oil oxidative stability.…”

Section: Chemistry and Quality Of Nut Oilsmentioning

confidence: 99%

Tree Nut Oils: Chemical Profiles, Extraction, Stability, and Quality Concerns

Maestri

Cittadini

Bodoira

et al. 2020

Euro J Lipid Sci & Tech

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Tree nuts are globally consumed. Their kernels are calorie-rich, nutrient-dense foods and contain several bioactive and health-promoting components. While some nut crops have expanded through the world since ancient times (almond, hazelnut, walnut), more recently, there has been a parallel development of underexploited promising species (Brazil nut, macadamia, pecan). Nut kernels have high lipid content, ranging from 40% to 80% depending on nut species and varieties. In general, nut oils contain significant proportions of nutritionally and medicinally desirable fatty acids and nutraceutical compounds (sterols, tocopherols, and other phenolics). A considerable genetic variability in oil content and composition is present in nut genetic resources worldwide. This suggests the possibility of different breeding lines focused to enhance oil yields, chemical and quality traits. Regarding extraction, screw-pressing is suitable to achieve high oil recovery and good quality standards, but seed materials should be conditioned appropriately. Seed moisture content and pressing temperature appear as key variables to enhance oil recovery. This article presents an overview on chemical profiles, mechanical extraction, and quality concerns of oils from the most widely produced tree nut crops. The revision is also aimed at identifying areas where knowledge is insufficient and to set priorities for further research. Practical applications: The review updates and increases knowledge about oils from tree nut genetic resources, encompassing genetic variability and environmental effects on oil yield and compositional traits. It also analyzes findings regarding oil extraction and provides useful insights to establish better conditions for achieving sustainable oil yields and good quality standards.

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“…The oleic acid content of the oils ranges from 12.7% to 34%, linoleic acid ranges from 49.7% to 72%, linolenic acid varies from 9% to 25%, the saturated palmitic is between 5.24% to 8.2% and stearic ranges from 1.4%-2% to 5% . 33,34 It was supposed that Persian walnut is able to prevent or alleviate fatty liver alongside the Iranian Hibiscus esculentus. 35 The ratios of these fatty acids are important in terms of their economic and nutritional value.…”

Section: Lipid Componentmentioning

confidence: 99%

“…For example, oils with lower linoleic and linolenic acid contents may have a longer shelf life while oils with higher levels of polyunsaturated fatty acid are more desirable since they have potential health benefits. 33,34 Among vegetable oils, walnut oil has the highest amounts of PUFAs (up to 78% of the total FA content). The FA composition of walnut oil generally resembles that of soybean oil, but the former oil contains a greater concentration of linolenic acid.…”

Section: Lipid Componentmentioning

confidence: 99%

Persian Walnut Composition and its Importance in Human Health

Ebrahimi¹,

Jamei²,

Nojoomi³

et al. 2017

Int J Enteric Pathog

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Persian walnut (Juglans regia L.) is a nutritionally rich and also popular nut which is largely consumed throughout the world. In addition to dry fruits (nuts), green walnuts, kernels, shells, green walnut husks (epicarp), barks and leaves have been applied in both cosmetic and pharmaceutical industries. Since ancient times, it has been used in folk medicine for treatment of several diseases and disorders such as diabetes, cancer, skin disease and infections, rheumatoid arthritis. In recent decades, many experimental researches have been done on the composition and characteristics of different parts of Persian walnut tree. These researches showed that walnut has many nutritious components such as phenolic component, unsaturated fatty acids and minerals essential for human health. Using walnut in folk medicine and identification of beneficial components of this fruit prompted many scientists to investigate properties that have traditionally been attributed to this fruit and the researches done in this area showed that walnut has effective antioxidant, antimicrobial, antitumor and anti-inflammatory properties that make it a promising drug for associated diseases.

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Proximate composition, minerals and fatty acid composition of Juglans Regia L. genotypes and cultivars grown in Turkey

Abstract: The proximate composition of eleven walnut (Juglans regia L.) genotypes (28 ŞK 010, 28 ŞK 055, 28 ŞK 041, 28 ŞK 601, 28 ŞK 925, 28 ŞK 028, 28 ŞK 118, 28 ŞK 350, 28 ŞK 930, 28 ŞK 850, 28 ŞK 036)

Cited by 39 publications

References 17 publications

Kernel oil content and oil composition in walnut (Juglans regia L.) accessions from north‐eastern Italy

Kernel oil content and oil composition in walnut (Juglans regia L.) accessions from north‐eastern Italy

Tree Nut Oils: Chemical Profiles, Extraction, Stability, and Quality Concerns

Persian Walnut Composition and its Importance in Human Health

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