Classification of Turkish hazelnut oils based on their triacylglycerol structures by chemometric analysis

Kıralan, Sezer; Yorulmaz, Aslı; Şimşek, Atilla; Tekin, Aziz

doi:10.1007/s00217-014-2371-0

Cited by 13 publications

(9 citation statements)

References 27 publications

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“…The obtained results showed that cultivars grown in Poland exhibited higher average carbohydrate contents and a lower average protein content compared to origin from countries like Turkey, Spain or Italy [7,28,31,[33][34][35]. A higher content of carbohydrates may positively affect the sensory profile of the nuts by giving them a sweet taste.…”

Section: Discussionmentioning

confidence: 99%

Morphological Traits, Kernel Composition and Sensory Evaluation of Hazelnut (Corylus avellana L.) Cultivars Grown in Poland

2019

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In the present study, the nut and kernel traits of six hazelnut cultivars (‘Barceloński’, ‘Kataloński’, ‘Webba Cenny’, ‘Olbrzym z Halle’, ‘Cosford’, and ‘Nottinghamski’) grown in Poland were investigated. Results showed that significant differences estimated among all six cultivars with all selected morphological traits and compositional properties. During statistical analysis the year of the study was not found to affect most of the investigated traits. The investigated cultivars showed a lower protein content (11.27–13.44%), higher carbohydrate content (16.40–21.79%) and similar fat content (58.91–63.83%) to nuts grown in a warmer climate like Turkey, Italy or Spain. The studied hazelnut varieties were large-sized with diameters greater than 20 mm. The nuts of the ‘Barceloński’, ‘Kataloński’ and ‘Olbrzym z Halle’ cultivars were characterized by the smallest diameters of nut and kernel, were the most spherical (0.85–0.95) and exhibited the largest average nut volume (4.26–4.46). Significant differences were found between the cultivars for oil content and the ratios of major fatty acids. The QDA results, estimated that other than shape, the evaluated nuts significantly differed only in the intensity of nutty flavor (4.88–5.92). The highest intensity of this attribute was found in three cultivars, ‘Nottinghamski’, ‘Cosford’, ‘Olbrzym z Halle’, whereas the lowest estimate was found in the ‘Barceloński’ cultivar, which was also slightly less sweet and more bitter. As a result, the present study showed that the investigated hazelnut kernels can be divided into two groups: ‘Nottinghamski’, ‘Cosford’, and ‘Webba Cenny’ are suitable for table consumption, while ‘Barceloński’, ‘Kataloński’, and ‘Olbrzym z Halle’ are suitable for the processing industry. The current experimental results may help to growers and breeders when choosing the cultivars for new plantations and possibilities of destinations of the produced nuts, for confectionery use or table consumption.

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Section: Discussionmentioning

confidence: 99%

Morphological Traits, Kernel Composition and Sensory Evaluation of Hazelnut (Corylus avellana L.) Cultivars Grown in Poland

2019

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“…The main ingredient contents of different hazelnuts hadn t significant differences. The lipid contents of two locations of wild hazelnuts were all over 50 , and they were similar to American hazelnut 28 and Turkish hazelnut 1,2 . The contents of crude protein and ash of two locations of wild hazelnuts were similar, meanwhile, there were all higher than American hazelnut 28 and Turkish hazelnut 1,2 .The crude fiber, ash and the crude lipids contents of HN2 were slightly higher than HN1.The differences in different varieties of the same origin and the different origin among the main composition may be due to the local growing condition such as climates and soils 29 .…”

Section: Discussionmentioning

confidence: 78%

Lipid Characterization of Chinese Wild Hazelnuts (<i>Corylus mandshurica</i> Maxim.)

Feng

et al. 2019

J. Oleo Sci.

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Introduction Hazelnut is one of the four major arboroid nuts in the world. There are about 20 species of hazelnuts, several species of hazelnuts such as C. America, C. avellana and C. colurna were widely cultivated in Asia, Europe and North America. Turkey is the world s leading producer of hazelnuts with a production of 400 000 tones, followed by European Union 145 000 tones , USA 37 200 tones and Azerbaijan 35 000 tones 1. In China, Hazelnut large area of cultivation is less, but there are wild varieties in the northeast and north of the mountains, Varieties are mainly Corylus heterophylla Fisch. and Corylus mandshurica Maxim. The main distribution of Corylus mandshurica Maxim is Hilly mountain in Heilongjiang, Liaoning and Jilin provinces of China. The average single weight and diameter of Corylus mandshurica Maxim is about 0.9 g and 1.37 cm, respectively, which is smaller than other species of hazelnuts. Currently, Hazelnuts are mainly used in the manufacture of food products including candy, chocolate, biscuits and pastries 2. In addition, other widely consumed product from hazelnuts is hazelnut oil 3. Hazelnut oil could be used

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“…The squalene amounts of the samples obtained by hexane extraction were between 499.75 (Allahverdi)-885.36 mg/ kg (Cavcava), while it varied between 288.55 (Kargalak)-647.68 mg/kg (Mincane) in cold pressed oils. Significant and obvious variations between SEHO and CPHO were verified by principal component and hierarchical of reports evaluating the triacylglycerol [4][5][6][7], fatty acid [2,[8][9][10][11], sterol [2,5,6,8,12,13] and tocopherol [6,8,13,14] profiles of hazelnut oils obtained from different cultivars.…”

Section: Introductionmentioning

confidence: 77%

Differentiation of Mechanically and Chemically Extracted Hazelnut Oils Based on their Sterol and Wax Profiles

Gümüş

Yorulmaz

Tekin

2016

J Americ Oil Chem Soc

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The sterol and wax content of solvent extracted (SEHO) and cold pressed hazelnut oils (CPHO) were compared. A total of 48 samples from 19 hazelnut varieties were collected for two successive crop years from four different geographical districts in Turkey. Hazelnuts were processed to oil with a laboratory scale press, than the remaining oil in cake was extracted with n‐hexane. CPHO and SEHO were evaluated for their wax, sterol and squalene contents. Results showed that sterol, squalene and wax contents of all individual cultivars were higher in SEHO than those of CPHO, indicating the higher solubility of these compounds in solvent. Total sterol contents ranged between 1088.56 (Kargalak)—1609.39 mg/kg (Mincane) for CPHO and 1590.86 (Çakıldak)—2897.26 mg/kg (Mincane) for SEHO. Hazelnut oils were found to be richer of C36‐38 esters than C40‐46 group. Total wax content was between 24.19 (Kargalak)—94.58 mg/kg (Kuş) for CPHO and 81.46 (Kargalak)—160.92 mg/kg (Akçakoca) for SEHO. The squalene amounts of the samples obtained by hexane extraction were between 499.75 (Allahverdi)—885.36 mg/kg (Cavcava), while it varied between 288.55 (Kargalak)—647.68 mg/kg (Mincane) in cold pressed oils. Significant and obvious variations between SEHO and CPHO were verified by principal component and hierarchical cluster analysis. Geographical discrimination was also achieved by discriminant analysis.

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Classification of Turkish hazelnut oils based on their triacylglycerol structures by chemometric analysis

Cited by 13 publications

References 27 publications

Morphological Traits, Kernel Composition and Sensory Evaluation of Hazelnut (Corylus avellana L.) Cultivars Grown in Poland

Morphological Traits, Kernel Composition and Sensory Evaluation of Hazelnut (Corylus avellana L.) Cultivars Grown in Poland

Lipid Characterization of Chinese Wild Hazelnuts (<i>Corylus mandshurica</i> Maxim.)

Differentiation of Mechanically and Chemically Extracted Hazelnut Oils Based on their Sterol and Wax Profiles

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