1. Preparation of aqueous nanodispersions with annatto (Bixa orellana L.) extract using an organic solvent-free and low energy method.
- Author
-
Bitencourt APR, Duarte JL, Oliveira AEMFM, Cruz RAS, Carvalho JCT, Gomes ATA, Ferreira IM, Ribeiro-Costa RM, Silva-Júnior JOC, and Fernandes CP
- Subjects
- Bixaceae chemistry, Carotenoids analysis, Carotenoids chemistry, Carotenoids isolation & purification, Diterpenes analysis, Diterpenes isolation & purification, Gas Chromatography-Mass Spectrometry, Plant Extracts metabolism, Seeds chemistry, Seeds metabolism, Solvents chemistry, Spectrophotometry, Surface-Active Agents chemistry, Thermogravimetry, Water chemistry, Bixaceae metabolism, Carotenoids metabolism, Plant Extracts chemistry
- Abstract
The seeds of Bixa orellana L. is widely used in food industry as a natural colorant. A major technological challenge for its utilization on aqueous food products is the low water solubility. Therefore, the present study aimed to obtain aqueous nanodispersions using this natural raw material by using a simple organic solvent-free and low energy method. Bixin and geranylgeraniol were found on the extract. The nanodispersions were prepared by addition of water on a mixture of extract and surfactant (s). The effect of the surfactants and dilution on the nanodispersions were also evaluated. Best results were achieved using polysorbate 80/sorbitan monooleate (HLB 13) (diluted in water, 1:10). The results shows the potential of this ecofriendly approach, in contrast to common methods that make use of potentially toxic organic solvents and high input of energy, which elevate the costs for further industrialization., (Copyright © 2018. Published by Elsevier Ltd.)
- Published
- 2018
- Full Text
- View/download PDF