Abstract: Different particle sized micronized starch samples were prepared from corn starch. By the use of compound emulsifying agents, the starch/palm oil mixed systems were prepared, and the particle size effects of starch on the properties of mixed system were studied. The results showed that along with the decrease of starch particle size, the stability and compatibil- ity of mixed system increase. The proper sized particle starch was chosen to make the right fat replacer, to be used to prepare good taste and well shaped low-fat compressed biscuits.

Key words: micronized starch, fat-replacer, compressed biscuit