Influence of cultivar and environmental conditions on the triacylglycerol profile of hazelnut (Corylus avellana L.)

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Amaral, JS (Author) Other; Cunha, SC (Author) Other; Santos, A (Author) Other; Alves, MR (Author) Other; Seabra, RM (Author) Other; Oliveira, BPP (Author) FFUP

Journal

Title: Journal of Agricultural and Food Chemistry

Vol. 54

Pages: 449-456

ISSN: 0021-8561

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 28 Citations

ISI Web of Science

Scopus - 38 Citations

Scientific classification

FOS: Agrarian Sciences > Other Agrarian Sciences

CORDIS: Health sciences

Other information

Authenticus ID: P-004-NN6

DOI: 10.1021/jf052133f

Resumo (PT): The oil of several hazelnut (Corylus avellana L.) samples was extracted and evaluated for their triacylglycerol (TAG) composition. Trials were conducted in two Portuguese localities (Vila Real and Felgueiras) during three consecutive years and involved a total of 19 cultivars. The samples were analyzed by reversed-phase high-performance liquid chromatography with evaporative light-scattering detection. Sample preparation was fast and simple, consisting only of the dissolution of the oil in acetone, homogenization, and filtration, allowing this technique to be suitable for routine analyses. All samples presented a similar qualitative profile composed of eleven compounds: LLL, OLL, PLL, OOL, POL, PPL, OOO, POO, PPO, SOO and PSO (P, palmitoyl; S, stearoyl; O, oleoyl; and L, linoleoyl). The main components were OOO, LOO, and POO, reflecting the high content of oleic acid in hazelnut oils. A total of 79 different samples were studied, and the obtained data were statistically analyzed. Significant differences were verified in canonical variate plots when cultivars were grouped by country of origin. In general, the American cultivars were richer in TAGs with saturated fatty acids moieties, and the group of French, German, and English cultivars was richer in TAGs containing linoleic acid moieties. Differences were also significant when cultivars were grouped by year of production, showing that besides genetic factors, the TAG composition can be influenced by environmental factors. <br> <br> Keywords: Triacylglycerols; Corylus avellana L.; hazelnut oil; HPLC/ELSD; chemometrics <br> <a target="_blank" href="http://pubs.acs.org/doi/abs/10.1021/jf052133f"> Texto integral </a> <br> <br>

Abstract (EN): The oil of several hazelnut (Corylus avellana L.) samples was extracted and evaluated for their triacylglycerol (TAG) composition. Trials were conducted in two Portuguese localities (Vila Real and Felgueiras) during three consecutive years and involved a total of 19 cultivars. The samples were analyzed by reversed-phase high-performance liquid chromatography with evaporative light-scattering detection. Sample preparation was fast and simple, consisting only of the dissolution of the oil in acetone, homogenization, and filtration, allowing this technique to be suitable for routine analyses. All samples presented a similar qualitative profile composed of eleven compounds: LLL, OLL, PLL, OOL, POL, PPL, OOO, POO, PPO, SOO and PSO (P, palmitoyl; S, stearoyl; 0, oleoyl; and L, linoleoyl). The main components were 000, LOO, and POO, reflecting the high content of oleic acid in hazelnut oils. A total of 79 different samples were studied, and the obtained data were statistically analyzed. Significant differences were verified in canonical variate plots when cultivars were grouped by country of origin. In general, the American cultivars were richer in TAGs with saturated fatty acids moieties, and the group of French, German, and English cultivars was richer in TAGs containing linoleic acid moieties. Differences were also significant when cultivars were grouped by year of production, showing that besides genetic factors, the TAG composition can be influenced by environmental factors.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8