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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Identification of carotenoid isomers in crude and bleached palm oils by mass spectrometry

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Author(s):
Ribeiro, Jose A. A. [1] ; Almeida, Erislene S. [2] ; Neto, Brenno A. D. [2] ; Abdelnur, Patricia V. [1, 3] ; Monteiro, Simone [2]
Total Authors: 5
Affiliation:
[1] EMBRAPA Agroenergia, Brasilia, DF - Brazil
[2] Univ Brasilia, Inst Chem, Brasilia, DF - Brazil
[3] Univ Fed Goias, Inst Chem, Goiania, Go - Brazil
Total Affiliations: 3
Document type: Journal article
Source: LWT-FOOD SCIENCE AND TECHNOLOGY; v. 89, p. 631-637, MAR 2018.
Web of Science Citations: 1
Abstract

In this work, a method for identification of alpha- and beta-carotene isomers in palm oil samples was developed by UHPLC-MS/MS. The fragmentation patterns of both isomers were studied and a diagnostic ion was assigned to a carotene (m/z 388). The developed method was used to identify isomers in crude palm oils from two cultivars (E. guineensis, here so-called native oil and E. guineensis x E. oleifera, here so-called interspecific hybrid) and bleached oil with two types of commercial bleaching earths (neutral and acid activated). It was noticed that a and beta-isomers are present in both crude oils, nevertheless beta-carotene is the most abundant. The reduction of a and beta-isomers in the bleached native oil was very similar after treatment with the two different types of adsorbents. For the interspecific hybrid oil, the acid adsorbent provided a reduction of the two forms, while the neutral adsorbent reduced mostly the beta-form. (AU)

FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
Grantee:Antonio José de Almeida Meirelles
Support Opportunities: Research Projects - Thematic Grants