Comparison of Fatty Acid and Triacylglycerol Compositions of Different Hazelnut Varieties (Corylus avellana L.) Cultivated in Catalonia (Spain)

Parcerisa, J.; Boatella, Josep; Codony, R.; Rafecas, Magda; Castellote, Ana I.; García, José; Camacho, Ana María; Romero, Ana

doi:10.1021/jf00049a004

Cited by 50 publications

(55 citation statements)

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“…PUFA and SFA contents were in the same order of magnitude, although the percentages of PUFA were slightly higher in almost all the studied cultivars. It has been reported that the ratio of oleic to linoleic acid varies among hazelnut cultivars and that their contents were inversely related [28,34]. This is reasonably consistent with the results herein reported, since the cvs.…”

Section: Resultssupporting

confidence: 93%

“…The chemical study was extended to 15 fatty acids and 9 phytosterols. Some works have already been published concerning some of the parameters studied in the work herein, but some reported only mean values without referring the cultivars under study [23,26,31,32], other works studied different cultivars [27,28,30,33] and other studied a reduced number of cultivars [34][35][36][37][38]. As far as we know, this is the first report on hazelnut cultivars grown in Portugal and nine of the cultivars were now studied for the first time.…”

Section: Introductionmentioning

confidence: 94%

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Characterization of several hazelnut (Corylus avellana L.) cultivars based in chemical, fatty acid and sterol composition

Amaral

Casal

Citóva

et al. 2005

Eur Food Res Technol

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Nineteen cultivars of hazelnuts (Corylus avellana L.) collected during the 2001 crop, from Vila Real, Portugal, were analysed for chemical composition, including moisture, total oil content, crude protein, ash, carbohydrates and nutritional value. Fat was the predominant component, ranging from 59.3 to 69.0%. Total oil was extracted and analysed for fatty acid and sterol compositions and oxidative stability. Fatty acid and sterol compositions were determined by Gas-Liquid Chromatography coupled to a Flame Ionisation Detector (GLC/FID). Monounsaturated fatty acids, particularly oleic acid, were predominant (78.7-84.6%). Total phytosterol content ranged from 133.8 to 263.0 mg/100 g of oil. Among the nine sterols identified and quantified, β-sitosterol was the major one with a mean percentage of 83.6%, while 5 -avenasterol and campesterol were the second and the third components of the group with mean values of 6.1 and 5.8%, respectively. Since hazelnut oil can be used in olive oil adulteration, the values obtained were compared with published mean values of olive oils from different geographical origins.

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 94%

Characterization of several hazelnut (Corylus avellana L.) cultivars based in chemical, fatty acid and sterol composition

Amaral

Casal

Citóva

et al. 2005

Eur Food Res Technol

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“…Palmitoleic acid C16:1 fatty acid , which is contained in plant oils from macadamia nuts 1 , hazel nuts 2 , and seabuckthorn 3 and in the sebum cutaneum of humans 4 , exhibits antibacterial activities and bactericidal properties toward S. aureus, Streptococcus salivarius, the anaerobe Fusobacterium nucleatum, Neisseria gonorrhea, and Helicobacter pylori 5 8 . This fatty acid has great potential as a bactericidal agent for cleansing products because its activity is selective: although this fatty acid exhibits strong bactericidal activity toward some harmful bacteria, as previously mentioned, it does not kill good bacterium such as S. epidermidis.…”

Section: Introductionmentioning

confidence: 99%

Palmitoleic Acid Calcium Salt: A Lubricant and Bactericidal Powder from Natural Lipids

et al. 2015

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“…Hazelnuts have an oil content of 60%, an extremely high 18:1 content of 79%, and an enrichment of 18:1 at the sn-3 position of TAG (Parcerisa et al, 1995), suggesting that this tissue may possess DGAT genes with useful properties. The American hazelnut shrub Corylus americana is native to North America and grows as far north as Canada, implying a short growing season and a fast rate of oil synthesis.…”

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confidence: 99%

An Improved Variant of Soybean Type 1 Diacylglycerol Acyltransferase Increases the Oil Content and Decreases the Soluble Carbohydrate Content of Soybeans

et al. 2016

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Kinetically improved diacylglycerol acyltransferase (DGAT) variants were created to favorably alter carbon partitioning in soybean (Glycine max) seeds. Initially, variants of a type 1 DGAT from a high-oil, high-oleic acid plant seed, Corylus americana, were screened for high oil content in Saccharomyces cerevisiae. Nearly all DGAT variants examined from high-oil strains had increased affinity for oleoyl-CoA, with S 0.5 values decreased as much as 4.7-fold compared with the wild-type value of 0.94 mM. Improved soybean DGAT variants were then designed to include amino acid substitutions observed in promising C. americana DGAT variants. The expression of soybean and C. americana DGAT variants in soybean somatic embryos resulted in oil contents as high as 10% and 12%, respectively, compared with only 5% and 7.6% oil achieved by overexpressing the corresponding wildtype DGATs. The affinity for oleoyl-CoA correlated strongly with oil content. The soybean DGAT variant that gave the greatest oil increase contained 14 amino acid substitutions out of a total of 504 (97% sequence identity with native). Seed-preferred expression of this soybean DGAT1 variant increased oil content of soybean seeds by an average of 3% (16% relative increase) in highly replicated, single-location field trials. The DGAT transgenes significantly reduced the soluble carbohydrate content of mature seeds and increased the seed protein content of some events. This study demonstrated that engineering of the native DGAT enzyme is an effective strategy to improve the oil content and value of soybeans.

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Comparison of Fatty Acid and Triacylglycerol Compositions of Different Hazelnut Varieties (Corylus avellana L.) Cultivated in Catalonia (Spain)

Cited by 50 publications

References 4 publications

Characterization of several hazelnut (Corylus avellana L.) cultivars based in chemical, fatty acid and sterol composition

Characterization of several hazelnut (Corylus avellana L.) cultivars based in chemical, fatty acid and sterol composition

Palmitoleic Acid Calcium Salt: A Lubricant and Bactericidal Powder from Natural Lipids

An Improved Variant of Soybean Type 1 Diacylglycerol Acyltransferase Increases the Oil Content and Decreases the Soluble Carbohydrate Content of Soybeans

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