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Type: Artigo de periódico
Title: Effects Of Light, Air, Anti-oxidants And Pro-oxidants On Annatto Extracts (bixa Orellana)
Author: Najar S.V.
Bobbio F.O.
Bobbio P.A.
Abstract: Chloroform solutions of annatto extracts containing from 0·250 to 0·260 mg ml-1 of bixin were used as model systems to determine the effects on their stability of light (1380 or 430 lux), air, nitrogen, benzoyl peroxide and ascorbyl palmitate at 24 ± 1°C. Experiments were run for 12 days and the loss of bixin measured at 470 nm. Light was the most destructive agent, followed by benzoyl peroxide. Air was much less effective in promoting loss of colour. Ascorbyl palmitate effectively retarded the destructive effect of light. The apparent first order reaction rate constants and t1 2 are presented. © 1988.
Rights: fechado
Identifier DOI: 10.1016/0308-8146(88)90043-X
Date Issue: 1988
Appears in Collections:Unicamp - Artigos e Outros Documentos

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