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Study of selenium distribution in the protein fractions of the Brazil nut, Bertholletia excelsa.
J Agric Food Chem. 2004 Jun 30; 52(13):4318-22.JA

Abstract

The high selenium content of the Brazil nut, Bertholletia excelsa, makes this seed a healthy food qualified as an antiradical protector. The studied nut contained 126 ppm of selenium. Selenium was found to be distributed in the nut protein fractions. The water-extracted fraction, which represented 17.7% of the cake protein, was the richest in selenium with 153 ppm. Analysis by HPLC-MS showed that selenium was linked by a covalent bond to two amino acids to form selenomethionine and selenocystine. The selenomethionine represented a little less than 1% of the total amount of methionine.

Authors+Show Affiliations

Chunhieng T
Cirad-Amis, PAA, TA 40/16, 73 rue J.-F. Breton, 34398 Montpellier Cedex 5, France.
Pétritis K
No affiliation info available
Elfakir C
No affiliation info available
Brochier J
No affiliation info available
Goli T
No affiliation info available
Montet D
No affiliation info available

MeSH

BertholletiaChromatography, High Pressure LiquidCystineMass SpectrometryOrganoselenium CompoundsPlant ProteinsSeedsSeleniumSelenomethionine

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15212486

Citation

Chunhieng, Thavarith, et al. "Study of Selenium Distribution in the Protein Fractions of the Brazil Nut, Bertholletia Excelsa." Journal of Agricultural and Food Chemistry, vol. 52, no. 13, 2004, pp. 4318-22.
Chunhieng T, Pétritis K, Elfakir C, et al. Study of selenium distribution in the protein fractions of the Brazil nut, Bertholletia excelsa. J Agric Food Chem. 2004;52(13):4318-22.
Chunhieng, T., Pétritis, K., Elfakir, C., Brochier, J., Goli, T., & Montet, D. (2004). Study of selenium distribution in the protein fractions of the Brazil nut, Bertholletia excelsa. Journal of Agricultural and Food Chemistry, 52(13), 4318-22.
Chunhieng T, et al. Study of Selenium Distribution in the Protein Fractions of the Brazil Nut, Bertholletia Excelsa. J Agric Food Chem. 2004 Jun 30;52(13):4318-22. PubMed PMID: 15212486.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study of selenium distribution in the protein fractions of the Brazil nut, Bertholletia excelsa. AU - Chunhieng,Thavarith, AU - Pétritis,Konstantinos, AU - Elfakir,Claire, AU - Brochier,José, AU - Goli,Thierry, AU - Montet,Didier, PY - 2004/6/24/pubmed PY - 2004/8/4/medline PY - 2004/6/24/entrez SP - 4318 EP - 22 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 52 IS - 13 N2 - The high selenium content of the Brazil nut, Bertholletia excelsa, makes this seed a healthy food qualified as an antiradical protector. The studied nut contained 126 ppm of selenium. Selenium was found to be distributed in the nut protein fractions. The water-extracted fraction, which represented 17.7% of the cake protein, was the richest in selenium with 153 ppm. Analysis by HPLC-MS showed that selenium was linked by a covalent bond to two amino acids to form selenomethionine and selenocystine. The selenomethionine represented a little less than 1% of the total amount of methionine. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/15212486/Study_of_selenium_distribution_in_the_protein_fractions_of_the_Brazil_nut_Bertholletia_excelsa_ DB - PRIME DP - Unbound Medicine ER -