Particle formation of an edible fat (rapeseed 70) using the supercritical melt micronization (ScMM) process

Münüklü, P.; Jansens, P.J.

doi:10.1016/j.supflu.2006.07.015

Cited by 23 publications

(7 citation statements)

References 5 publications

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“…21 A novel route to largely decouple fat crystallisation and network formation is to disperse pre-crystallized fat nanoplatelets in oil. 22 Such pre-crystallized fat nanoplatelets can be produced by supercritical melt micronisation (ScMM): saturating a molten fat blend with supercritical CO 2 , which is subsequently expanded through a nozzle. The resulting fine powder of rapidly micronized fat crystal (MFC) nanoplatelets can be readily dispersed in oil.…”

Section: Introductionmentioning

confidence: 99%

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Networks of micronized fat crystals grown under static conditions

et al. 2018

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Dispersing micronized fat crystals (MFCs) in oil is a novel route to largely decouple fat crystallisation and network formation and thus to simplify the manufacture of fat-continuous food products. MFCs dispersed in oil form a weak-interaction network organized by crystal aggregates in a continuous net of crystalline nanoplatelets. The rough surface of MFC nanoplatelets hampers stacking into one-dimensional aggregates, which explains the high mass fractal dimensions of the networks formed in MFC dispersions. Applying shear does not have a significant effect on the fractal dimensions of MFC networks, and MFC aggregates in the range of 5-10 μm remain intact. However, shear leads to a significant loss of storage modulus and yield stress over a time frame of an hour. This can be attributed to irreversible disruption of the continuous net of nanoplatelets. Rheo-SAXS revealed that shear releases nanoplatelets from the continuous net, which subsequently align in the shear field and undergo rapid recrystallisation. The release of thin and metastable nanoplatelets from the weak-link network bears relevance for simplified and more effective manufacturing of emulsified food products by effectively decoupling crystallisation, network formation and emulsification.

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Section: Introductionmentioning

confidence: 99%

“…By this process, fat crystallisation and network formation can be largely decoupled, which offers opportunities for simplified and flexible manufacturing of fat-continuous food products. 22 However, no detailed investigation on the obtained MFC networks has appeared so far.…”

Section: Introductionmentioning

confidence: 99%

Networks of micronized fat crystals grown under static conditions

et al. 2018

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“…The CO 2 gas then leaves the gas-saturated polymer/fat droplets and also during expansion, the temperature of the mixture reduces drastically due to the Joule–Thomson effect, hence causing the polymer solidification [88]. A similar process termed as supercritical melt micronization (ScMM) has been developed for the micronization of fats (such as hard fats or milk fats) [89,90,91,92]. For microencapsulation application, the PGSS process can be used for water-soluble active ingredients and coating materials.…”

Section: Role Of Supercritical Carbon Dioxide In Microencapsulatiomentioning

confidence: 99%

Microencapsulation and Nanoencapsulation Using Supercritical Fluid (SCF) Techniques

Soh¹,

Lee²

2019

Pharmaceutics

109

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The unique properties of supercritical fluids, in particular supercritical carbon dioxide (CO2), provide numerous opportunities for the development of processes for pharmaceutical applications. One of the potential applications for pharmaceuticals includes microencapsulation and nanoencapsulation for drug delivery purposes. Supercritical CO2 processes allow the design and control of particle size, as well as drug loading by utilizing the tunable properties of supercritical CO2 at different operating conditions (flow ratio, temperature, pressures, etc.). This review aims to provide a comprehensive overview of the processes and techniques using supercritical fluid processing based on the supercritical properties, the role of supercritical carbon dioxide during the process, and the mechanism of formulation production for each process discussed. The considerations for equipment configurations to achieve the various processes described and the mechanisms behind the representative processes such as RESS (rapid expansion of supercritical solutions), SAS (supercritical antisolvent), SFEE (supercritical fluid extraction of emulsions), PGSS (particles from gas-saturated solutions), drying, and polymer foaming will be explained via schematic representation. More recent developments such as fluidized bed coating using supercritical CO2 as the fluidizing and drying medium, the supercritical CO2 spray drying of aqueous solutions, as well as the production of microporous drug releasing devices via foaming, will be highlighted in this review. Development and strategies to control and optimize the particle morphology, drug loading, and yield from the major processes will also be discussed.

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“…5 zeigt REM-Aufnahmen der Kapseln. Fast perfekte späherische Partikel konnten erhalten werden, die, wie schon von Cocero et al [20] [21]. Die in Abb.…”

Section: Ergebnisse Und Diskussionunclassified