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Tocopherol and tocotrienol content of hazelnut cultivars grown in portugal.
J Agric Food Chem. 2006 Feb 22; 54(4):1329-36.JA

Abstract

Hazelnuts from 19 cultivars collected during 3 consecutive-year crops, in 2 different geographical localities, for a total of 79 samples, were evaluated for their contents in tocopherols and tocotrienols by normal-phase high-performance liquid chromatography coupled to a series arrangement of a diode array and a fluorescence detector. Seven compounds were identified and quantified. All samples presented alpha-, beta-, gamma-, and delta- tocopherols and beta-tocotrienol; alpha- and gamma-tocotrienols were detected in some of the studied samples. alpha-Tocopherol was the major compound in all samples, ranging from 105.9 to 226.8 mg/kg of hazelnut. Considering the generality of the obtained results, an identical qualitative and quantitative pattern was found, which can define a chemical fingerprint that may be helpful in the assessment of identity and quality of hazelnut oils. Statistical analyses were carried out in order to check for differences among cultivars, year crops, and geographical localities. Although some differences were observed when different-year crops and geographical localities were considered, neither of these factors seemed to produce considerable differences in terms of tocopherol and tocotrienol contents. Some minor differences were observed among cultivars.

Authors+Show Affiliations

REQUIMTE, Serviços de Farmacognosia and Bromatologia, Faculdade de Farmácia, Universidade do Porto, R. Aníbal Cunha, 164, 4030-099 Porto, Portugal.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

16478256

Citation

Amaral, Joana S., et al. "Tocopherol and Tocotrienol Content of Hazelnut Cultivars Grown in Portugal." Journal of Agricultural and Food Chemistry, vol. 54, no. 4, 2006, pp. 1329-36.
Amaral JS, Casal S, Alves MR, et al. Tocopherol and tocotrienol content of hazelnut cultivars grown in portugal. J Agric Food Chem. 2006;54(4):1329-36.
Amaral, J. S., Casal, S., Alves, M. R., Seabra, R. M., & Oliveira, B. P. (2006). Tocopherol and tocotrienol content of hazelnut cultivars grown in portugal. Journal of Agricultural and Food Chemistry, 54(4), 1329-36.
Amaral JS, et al. Tocopherol and Tocotrienol Content of Hazelnut Cultivars Grown in Portugal. J Agric Food Chem. 2006 Feb 22;54(4):1329-36. PubMed PMID: 16478256.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Tocopherol and tocotrienol content of hazelnut cultivars grown in portugal. AU - Amaral,Joana S, AU - Casal,Susana, AU - Alves,M Rui, AU - Seabra,Rosa M, AU - Oliveira,Beatriz P P, PY - 2006/2/16/pubmed PY - 2006/4/7/medline PY - 2006/2/16/entrez SP - 1329 EP - 36 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 54 IS - 4 N2 - Hazelnuts from 19 cultivars collected during 3 consecutive-year crops, in 2 different geographical localities, for a total of 79 samples, were evaluated for their contents in tocopherols and tocotrienols by normal-phase high-performance liquid chromatography coupled to a series arrangement of a diode array and a fluorescence detector. Seven compounds were identified and quantified. All samples presented alpha-, beta-, gamma-, and delta- tocopherols and beta-tocotrienol; alpha- and gamma-tocotrienols were detected in some of the studied samples. alpha-Tocopherol was the major compound in all samples, ranging from 105.9 to 226.8 mg/kg of hazelnut. Considering the generality of the obtained results, an identical qualitative and quantitative pattern was found, which can define a chemical fingerprint that may be helpful in the assessment of identity and quality of hazelnut oils. Statistical analyses were carried out in order to check for differences among cultivars, year crops, and geographical localities. Although some differences were observed when different-year crops and geographical localities were considered, neither of these factors seemed to produce considerable differences in terms of tocopherol and tocotrienol contents. Some minor differences were observed among cultivars. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/16478256/Tocopherol_and_tocotrienol_content_of_hazelnut_cultivars_grown_in_portugal_ DB - PRIME DP - Unbound Medicine ER -