Twin-screw extrusion at low temperature with carbon dioxide injection to assist expansion: extrudate characteristics

Jeong, Hayeong; Toledo, Romeo T.

doi:10.1016/j.jfoodeng.2003.09.026

Cited by 21 publications

(12 citation statements)

References 9 publications

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“…has showed that there is a lowering in bulk density of extrudates in presence of P-CO 2 injection 33 . Our results showed that foamed milled extrudates exhibited lower bulk density and tap density as compared to the extrudates without P-CO 2 injection, due to an increase in porosity and surface area of the extrudates (Table 5).…”

Section: Resultsmentioning

confidence: 99%

Influence of pressurized carbon dioxide on ketoprofen-incorporated hot-melt extruded low molecular weight hydroxypropylcellulose

Ashour

Kulkarni

Almutairy

et al. 2015

Drug Development and Industrial Pharmacy

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Objectives The aim of the current research project was to investigate the effect of pressurized carbon dioxide (P-CO2) on the physico-mechanical properties of Ketoprofen (KTP)-incorporated hydroxypropylcellulose (HPC) (Klucel™ ELF, EF and LF) produced using hot melt extrusion (HME) techniques and to assess the plasticization effect of P-CO2 on the various polymers tested. Methods The physico-mechanical properties of extrudates with and without injection of P-CO2 were examined and compared to extrudates with the addition of 5% liquid plasticizer of propylene glycol (PG). The extrudates were milled and compressed into tablets. Tablet characteristics of the extrudates with and without injection of P-CO2 were evaluated. Results & conclusion P-CO2 acted as a plasticizer for tested polymers, which allowed for the reduction in extrusion processing temperature. The microscopic morphology of the extrudates were changed to a foam-like structure due to expansion of the CO2 at the extrusion die. The foamy extrudates demonstrated enhanced KTP release compared to the extrudates processed without P-CO2 due to the increase of porosity and surface area of those extrudates. Furthermore, the hardness of the tablets prepared by foamy extrudates was increased and the percent friability was decreased. Thus, the good binding properties and compressibility of the extrudates were positively influenced by utilizing P-CO2 processing.

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Section: Resultsmentioning

confidence: 99%

Influence of pressurized carbon dioxide on ketoprofen-incorporated hot-melt extruded low molecular weight hydroxypropylcellulose

Ashour

Kulkarni

Almutairy

et al. 2015

Drug Development and Industrial Pharmacy

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“…At first, it was only applied to the processing of different polymers, but today is increasingly used in food processing technology. Primarily, the possibility of applying extrusion with supercritical CO 2 for the production of extrudates at lower temperatures is examined, that reduces energy costs, but also ensures a better quality product and preservation of thermally labile substances in food [31,[33][34][35][36][37][38]. Scientific research in the field of SCFX and application of supercritical CO 2 in food technology has significantly increased in the last three decades and in this paper the published works in this field are summarized.…”

Section: Application Of Scfx In Food Technologymentioning

confidence: 99%

“…Authors in this study have demonstrated that the SCFX process can be used in the production of cereal-based products fortified with multiple macro-and micronutrients and therefore can be effectively used to address multinutrient deficiencies in targeted populations [39]. Jeong and Toledo (2004) examined the possibility of applying supercritical CO 2 in the production of extrudates with pre-gelatinized rice flour in the twin-screw extruder at low temperatures (40-60 °C) in order to improve the expansion. They concluded that CO 2 extrusion gives very porous products, easily soluble in water [38].…”

Section: Application Of Scfx In Food Technologymentioning

confidence: 99%

“…Jeong and Toledo (2004) examined the possibility of applying supercritical CO 2 in the production of extrudates with pre-gelatinized rice flour in the twin-screw extruder at low temperatures (40-60 °C) in order to improve the expansion. They concluded that CO 2 extrusion gives very porous products, easily soluble in water [38].…”

Section: Application Of Scfx In Food Technologymentioning

confidence: 99%

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Application of supercritical carbon dioxide extrusion in food processing technology

Balentić

Ačkar

Jozinović

et al. 2017

Hem Ind

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Extrusion process is one of the most important innovations of the 20 th century applied in many industries. Extrusion is a technology that is increasingly used for the production of various food products, especially snacks and breakfast cereals. Supercritical carbon dioxide (CO 2 ) as a non-toxic, non-flammable and inexpensive, is applied in many processes, including the extrusion technology. Supercritical CO 2 extrusion process (SCFX) found its application primarily in the processing and manufacturing plastic, but recently more and more begins to be applied in food production and processing. Scientific researches in this area are based in production of extrudates with improved properties compared to conventional extrusion process without the addition of CO 2 . A number of applications of SCFX in food processing technology will be reviewed and numerous advantages over the conventional process will be described in this paper.

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“…Las aplicaciones de los FSC (especialmente del CO 2 supercrítico), son muy amplias, por ello es de resaltar otros campos de aplicación también de interés industrial como son la eliminación de aceite en papas y croquetas de yuca fritas (Hurtado, 2002); la eliminación de alcohol en bebidas alcohólicas (Señorans et al, 2001); la extracción de aromas y sabores de jugos cítricos (Temelli et al, 1998); también se han desarrollado nuevos procesos de extrusión y esponjado con CO 2 SC (Alavi et al, 2003(Alavi et al, , 2003aGogoi et al, 2000;Jeong y Toledo, 2004). Se han inactivado bacterias y esporas por CO 2 SC (Dillow et al, 1999;Shimoda et al, 2002;Watanabe et al, 2003).…”

Section: Otras Extracciones Y Aplicacionesunclassified

Aplicaciones de los Fluidos Supercríticos en la Agroindustria

2007

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* autor a quien debe ser dirigida la correspondencia ResumenEsta presenta una revisión sobre el uso del dióxido de carbono supercrítico como solvente para la extracción de compuestos bioactivos presentes en vegetales de actual y potencial uso, en procesos de la agroindustria. Se hace una descripción de la extracción con soxhlet, la cual se usa para evaluar el rendimiento en extracto y en tiempo de extracción, de los métodos tradicionales y recientes de extracción. Se describe la extracción con fluidos supercríticos, se muestran condiciones de operación y se nombran algunos principios bioactivos extraídos de diferentes materias primas vegetales, reportados en la literatura internacional. Para una mejor descripción de las aplicaciones de los fluidos supercríticos en la agroindustria, estas se clasifican en cinco grupos bien diferenciados. Esto permite formarse una idea global clara sobre las posibilidades que ofrecen los fluidos supercríticos para mejorar la competitividad de la agroindustria. Palabras claves: dióxido de carbono, extracción supercrítica, extracción soxhlet, agroindustria Applications of Supercritical Fluids in the Agroindustry AbstractA review on the use of supercritical carbon dioxide as a solvent for the bioactive compounds extraction present in vegetables of current and potential use in agroindustrial processes is presented. A description of the extraction with soxhlet, which is used to evaluate the yield in extract and in extraction time of traditional and modern extraction methods is done. Extraction with supercritical fluids is described, operation conditions are showed and bioactive principles extracted from different vegetables raw material reported in the international literature are described. To better described the applications of supercritical fluids in the agroindustry, these are classified in five well defined groups. This allows to get a clear global idea about the possibilities offered by the supercritical fluids to improve the competitiveness of the agroindustry.

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Twin-screw extrusion at low temperature with carbon dioxide injection to assist expansion: extrudate characteristics

Cited by 21 publications

References 9 publications

Influence of pressurized carbon dioxide on ketoprofen-incorporated hot-melt extruded low molecular weight hydroxypropylcellulose

Influence of pressurized carbon dioxide on ketoprofen-incorporated hot-melt extruded low molecular weight hydroxypropylcellulose

Application of supercritical carbon dioxide extrusion in food processing technology

Aplicaciones de los Fluidos Supercríticos en la Agroindustria

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