ENCAPSULATION OF EXTRACT FROM WINERY INDUSTRY RESIDUE USING THE SUPERCRITICAL ANTI-SOLVENT TECHNIQUE
Abstract Grape pomace (seed, skin and stem) is a winery byproduct with high levels of biologically active compounds, such as antioxidants and antimicrobials, that could be converted into high added-value products. Since these components are easily degraded by oxygen, light and high temperature exposure, stabilization is important, for instance, by a microencapsulation process. Therefore, the objective of this study was to investigate the influence on the particle characteristics of the operational conditions applied in the Supercritical Anti-Solvent (SAS) process for the co-precipitation of grape pomace extract and poly(-lactic-co-glycolic acid) (PLGA). The morphology and size of the particles formed, their stability and thermal profile were evaluated, and also the co-precipitation efficiency. The conditions studied allowed the production of microparticles with spherical shape for all operational conditions, with estimated particle size between 4 ± 2 and 11 ± 5 µm, and very good co-precipitation efficiencies (up to 94.4 ± 0.6%). The co-precipitated extract presented higher stability compared to the crude extract, indicating the effectiveness of the co-precipitation process and coating material against degradation processes.
Main Authors: | Mezzomo,N., Oliveira,D. A., Comim,S. R. R., Ferreira,S. R. S. |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Brazilian Society of Chemical Engineering
2016
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322016000300589 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Selective precipitation of phenolic compounds from Achillea millefolium L. extracts by supercritical anti-solvent technique
by: Villanueva, D., et al.
Published: (2017) -
Supercritical anti-solvent fractionation for improving antioxidant and anti-inflammatory activities of an Achillea millefolium L. extract
by: Villalva, Marisol, et al.
Published: (2019) -
Extraction of garlic with supercritical CO2 and conventional organic solvents
by: del Valle,J. M., et al.
Published: (2008) -
Extraction of functional ingredients from spinach (Spinacia oleracea L.) using liquid solvent and supercritical CO2 extraction
by: Jaime, Laura, et al.
Published: (2014) -
Supercritical-anti solvent precipitation for obtaining high polyphenols powders from yarrow plant
by: Villanueva, D., et al.
Published: (2016)