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A Scanning Electron Microscopy Study of Microencapsulation
Author(s) -
ROSENBERG MOSHE,
KOPELMAN ISAIAH J.,
TALMON YESHAYAHU
Publication year - 1985
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1985.tb13295.x
Subject(s) - scanning electron microscope , epoxy , materials science , capsule , nanotechnology , chemical engineering , electron microscope , composite material , optics , botany , physics , engineering , biology
Scanning Electron Microscopy (SEM) has been applied to the morphological study of various microcapsule systems. In addition to using standard preparation techniques for the examination of the outer structure of microcapsules, a new embedding and microtoming technique has been developed to allow the study of the inner structure of fractured capsules. The technique uses a new nonpolar embedding resin, Lowicryl HM‐20, which is compatible with the microcapsule shell material, and does not introduce artifacts associated with the use of epoxy resins. We demonstrate the potential of SEM techniques as a tool for selection of wall materials, for the study of core materials distribution in microcapsules, and for elucidating the mechanisms of capsule formation and the effects of water‐vapor uptake on microcapsule properties.