Technological characterization of biomass obtained from the turmeric and annatto processing by using green technologies

In this paper, biorefinery coproducts from the annatto and turmeric were characterized aiming their application in the manufacture of new products. Therefore, the objective of this work was to study annatto and turmeric coproducts obtained after integrated and intensified extraction processes based...

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Bibliographic Details
Published in:Journal of cleaner production 2018-07, Vol.189, p.231-239
Main Authors: Silva, Eric Keven, Martelli-Tosi, Milena, Vardanega, Renata, Nogueira, Gislaine C., Zabot, Giovani L., Meireles, M. Angela A.
Format: Article
Language:English
Subjects:
Biorefinery coproduct
Process integration
Process intensification
Soluble fiber
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Summary:In this paper, biorefinery coproducts from the annatto and turmeric were characterized aiming their application in the manufacture of new products. Therefore, the objective of this work was to study annatto and turmeric coproducts obtained after integrated and intensified extraction processes based on green technologies. Annatto seeds were submitted to supercritical fluid extraction plus low-pressure solvent extraction. Turmeric rhizomes were submitted to supercritical fluid extraction plus pressurized liquid extraction. The coproducts generated after such extractions were mostly composed of carbohydrates (81 wt%), which starchy materials and dietary fibers were the predominant ones. The starch granules presented elliptical shape and sizes ranging from 16 ± 4 to 62 ± 7 μm. Diffractograms, thermal properties as transition temperatures and enthalpy associated with the starch gelatinization, and crystallinity index of the coproducts are also presented. The annatto and turmeric coproducts obtained in this study represent a valuable source of starchy materials and have a great potential to be used as new products' precursors. [Display omitted] •Pseudo-residues obtained after supercritical technology processing were studied.•Biomass from annatto and turmeric extraction had up to 81% of carbohydrates.•Composition, morphology and thermal properties of pseudo-residues are presented.•Turmeric and annatto pseudo-residues contained 30% and 56% of dietary fibers.•Application of pseudo-residues is prospected and discussed.
ISSN:0959-6526
1879-1786
DOI:10.1016/j.jclepro.2018.04.101