Tocopherol profile of Brazil nut oil from different geographic areas of the Amazon region


Autoria(s): Funasaki,Mariko; Menezes,Ingrid Sabino; Barroso,Hiléia dos Santos; Zanotto,Sandra Patricia; Carioca,Cláudia Regina Ferreira
Data(s)

01/12/2013

Resumo

The tocopherol content of Brazil nut oil from different Amazon regions (Manicoré-AM, Rio Preto da Eva-AM, São João da Baliza-RR, Caroebe-RR, Belém-PA, and Xapurí-AC) was investigated by normal-phase high-performance liquid chromatography. For all authentic oils, two isomers: α- and γ-tocopherols were observed (37.92-74.48 µg g-1, 106.88-171.80 µg g-1, respectively), and their levels were relatively constant among the oils having these geographic origins, which would enable to distinguish Brazil nut oil from other plant oils for authentication purposes. Commercial Brazil nut oils were also evaluated, and some of these oils demonstrated a tocopherol content that was very different from that of the authentic oils. Therefore, we suggest that the tocopherol profile of Brazil nut oil can be useful chemical marker for quality control and authentication.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000400012

Idioma(s)

en

Publicador

Instituto Nacional de Pesquisas da Amazônia

Fonte

Acta Amazonica v.43 n.4 2013

Palavras-Chave #Bertholletia excelsa H.B.K. #Amazonian vegetable oil #quality control #authenticity
Tipo

journal article