Phase behavior and process parameters effect on grape seed extract encapsulation by SEDS technique

Boschetto, Daiane L.; Dalmolin, Irede Angela Lucini; Cesaro, A.M. De; Rigó, A.; Ferreira, Sandra R.S.; Meireles, M. Ângela A.; Batista, Eduardo Augusto Caldas; Oliveira, J. Vladimir

doi:10.1016/j.indcrop.2013.07.044

Cited by 35 publications

(15 citation statements)

References 34 publications

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“…This behavior was also observed by Boschetto et al (2013) when studying the co-precipitation of grape seed oil in PHBV and probably occurs due to the higher CO2: extract ratio (g/g) that could improve the mass transfer and, consequently, the extract and polymer co-precipitation.…”

Section: Extract Co-precipitation Efficiency and Particle Stabilitysupporting

confidence: 59%

“…The SEM analysis uses a small sample of particles and it is very useful to evaluate the particles qualitatively (morphology and porosity) and quantitatively to estimate the particles size. The estimation of the particle size (named the estimated particle size) was determined by the Size Meter image analysis software (version 1.1), as described by Boschetto et al (2013), using at least 500 particles per sample. The results of estimated particle size were expressed as mean size ± standard deviation.…”

Section: Morphology and Size By Means Of Scanning Electronic Microscomentioning

confidence: 99%

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Encapsulation of Extract From Winery Industry Residue Using the Supercritical Anti-Solvent Technique

Mezzomo

Oliveira

Comim

et al. 2016

Braz. J. Chem. Eng.

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-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-coglycolic 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.

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Section: Extract Co-precipitation Efficiency and Particle Stabilitysupporting

confidence: 59%

Section: Morphology and Size By Means Of Scanning Electronic Microscomentioning

confidence: 99%

Encapsulation of Extract From Winery Industry Residue Using the Supercritical Anti-Solvent Technique

Mezzomo

Oliveira

Comim

et al. 2016

Braz. J. Chem. Eng.

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“…1 presents a schematic diagram of the experimental apparatus representing the SEDS technique, which was employed for the precipitation of the pure compounds (bixin and PHBV) and also for the co-precipitation of bixin with PHBV. This apparatus is similar to the one used by Priamo et al (2010) and Boschetto et al (2013) and, briefly, it consists of a cylindrical vessel with an internal volume of 600 mL (inner diameter of 8 cm), which was used as precipitation chamber (PC), two syringe pumps for CO 2 displacement (ISCO, Model 500D), operated independently by a set of ball valves -V1 to V4 (Swagelok, Model SS-83KS4), and a digital HPLC …”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Encapsulation of bixin in PHBV using SEDS technique and in vitro release evaluation

Boschetto

Aranha

Souza

et al. 2014

Industrial Crops and Products

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“…Unfortunately, it was not possible to visualize clearly the effect of pressure on the particle size in this work. In relation to some other works (Franceschi et al, 2009;Priamo et al, 2010;Boschetto et al, 2013), in most cases, a pressure decrease causes an increase in particle size and an enlargement of the particle size distribution. 100 10 -----11.05 33.14 P, pressure; B/DCM, biomass to dichloromethane ratio; X, mean particle size; X min , minimum particle size; Xmax, maximum particle size; s, standard deviation; VC, variation coefficient; PE, percentage of encapsulation; and EE, encapsulation efficiency.…”

Section: Co-precipitation Of Astaxanthin In Phbvmentioning

confidence: 59%

“…Although there are some industrial-scale plants using this technology, already in operation, several academic investigations still are needed in order to improve the process parameters (Priamo et al, 2013). In recent years, we have reported the precipitation of bioactive compounds using the Solution Enhanced Dispersion by Supercritical fluids (SEDS) technique (Franceschi et al, 2008;Franceschi et al, 2009;Priamo et al, 2010;Boschetto et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Technological process for cell disruption, extraction and encapsulation of astaxanthin from Haematococcus pluvialis

Machado

Trevisol

Boschetto

et al. 2016

Journal of Biotechnology

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In this work, the effectiveness of different enzymatic techniques for cell wall disruption of Haematococcus pluvialis for the extraction of carotenoids and subsequent encapsulation of extracts in the co-polymer poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) using the Solution Enhanced Dispersion by Supercritical fluids (SEDS) technique was investigated. Glucanex(®) performed best compared with Lyticase(®) and Driselase(®). The conditions for enzymatic lysis using this enzyme preparation were established as a pH of 4.5, a temperature of 55 °C, an initial activity of β-1,3-glucanase of 0.6 U mL(-1) and a reaction time of 30 min. Enzymatic lysis assisted by ultrasound without biomass freezing was shown to be a promising and simple one-step technique for cell wall disruption, reaching 83.90% extractability. In the co-precipitation experiments, the highest encapsulation efficiency (51.21%) was obtained when using a higher biomass to dichloromethane ratio (10 mg mL(-1)) at the carotenoid extraction step and a lower pressure of precipitation (80 bar). In these conditions, spherical particles in the micrometer range (0.228 μm) were obtained.

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Phase behavior and process parameters effect on grape seed extract encapsulation by SEDS technique

Cited by 35 publications

References 34 publications

Encapsulation of Extract From Winery Industry Residue Using the Supercritical Anti-Solvent Technique

Encapsulation of Extract From Winery Industry Residue Using the Supercritical Anti-Solvent Technique

Encapsulation of bixin in PHBV using SEDS technique and in vitro release evaluation

Technological process for cell disruption, extraction and encapsulation of astaxanthin from Haematococcus pluvialis

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