Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 63, Issue 1, Pages 41-47Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfb.2007.11.007
Keywords
transglutaminase; coacervation; cross-linker; hardening; multinuclear microcapsules
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Gelatin-gum arabic spherical multinuclear microcapsules (SMMs) encapsulating peppermint oil were prepared by complex coacervation. Transglutaminase (TG) was used to harden the SMMs by complex coacervation instead of traditional reagents such as formaldehyde or glutaraldehyde. The effect of various cross-linking parameters on the hardening effectiveness of SMMs containing peppermint oil was investigated. The optimum parameters were as follows: hardening for 6 h at 15 degrees C and pH 6.0 with a TG concentration of 15 U/g gelatin. Compared with formaldehyde, TG exhibits similar microcapsule hardening effectiveness. (c) 2007 Published by Elsevier B.V.
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