Production characteristics of oil-in-water emulsions using microchannel homogenisation

Umeda, T. and Kobayashi, I. (2024) Production characteristics of oil-in-water emulsions using microchannel homogenisation. International Food Research Journal (Malaysia), 31 (6). pp. 1392-1401. ISSN 2231 7546

Microchannel homogenisation (MCH) is a highly efficient technique for producing uniform emulsions in a one-pass process. This involves passing premix emulsions through a microchannel (MC) array chip. The preparation of oil-in-water (O/W) emulsions using MCH has not been thoroughly explored compared to other premix emulsification methods. Therefore, in the present work, we aimed to clarify the production characteristics and productivity of O/W emulsions in a one-pass process using MCH with an asymmetric straight-through MC array. Numerous asymmetric straight-through MCs, each comprising a microslot and circular microhole (diameter: 10 µm), were microfabricated on a siliconon-insulator chip. The continuous phase was a Milli-Q water solution containing 9.0% (w/w) polyethylene glycol and 1.0% (w/w) polyoxyethylene 20 sorbitan monolaurate. The dispersed phase comprised 10 - 30% (v/v) soybean oil or medium-chain triacylglycerol oil. The volume-length mean diameter (d4,3) of the O/W emulsions prepared via MCH was approximately 15 µm below the critical pressure. Emulsion fluxes reached > 1.0 m3/(m2 h) even with 30% (v/v) dispersed phase. These results demonstrated that MCH with an asymmetric MC array could stably prepare O/W emulsions with a high dispersed-phase concentration in a one-pass process. Furthermore, MCH achieved high throughput, comparable to that of premix membrane emulsification.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/31%20(06)%202024/02%20-...

Abstract

Microchannel homogenisation (MCH) is a highly efficient technique for producing uniform emulsions in a one-pass process. This involves passing premix emulsions through a microchannel (MC) array chip. The preparation of oil-in-water (O/W) emulsions using MCH has not been thoroughly explored compared to other premix emulsification methods. Therefore, in the present work, we aimed to clarify the production characteristics and productivity of O/W emulsions in a one-pass process using MCH with an asymmetric straight-through MC array. Numerous asymmetric straight-through MCs, each comprising a microslot and circular microhole (diameter: 10 µm), were microfabricated on a siliconon-insulator chip. The continuous phase was a Milli-Q water solution containing 9.0% (w/w) polyethylene glycol and 1.0% (w/w) polyoxyethylene 20 sorbitan monolaurate. The dispersed phase comprised 10 - 30% (v/v) soybean oil or medium-chain triacylglycerol oil. The volume-length mean diameter (d4,3) of the O/W emulsions prepared via MCH was approximately 15 µm below the critical pressure. Emulsion fluxes reached > 1.0 m3/(m2 h) even with 30% (v/v) dispersed phase. These results demonstrated that MCH with an asymmetric MC array could stably prepare O/W emulsions with a high dispersed-phase concentration in a one-pass process. Furthermore, MCH achieved high throughput, comparable to that of premix membrane emulsification.

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Item Type:	Article
AGROVOC Term:	emulsions
AGROVOC Term:	soybean oil
AGROVOC Term:	triacylglycerol lipase
AGROVOC Term:	production
AGROVOC Term:	research
AGROVOC Term:	productivity
AGROVOC Term:	high-throughput sequencing
AGROVOC Term:	particle size
Geographical Term:	Japan
Uncontrolled Keywords:	flux, volume fraction, premix emulsification, asymmetric microchannel array
Depositing User:	Nor Hasnita Abdul Samat
Date Deposited:	07 May 2026 04:28
Last Modified:	07 May 2026 04:30
URI:	http://webagris.upm.edu.my/id/eprint/4053

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