Abstract:

Physical properties and compositions of dietary fiber sources (DFS) from Apple-pear pomace by chemical method were studied. The results showed that the cellulose content of DFS prepared from apple-pear pomace is high, reaching 40%, and phenolic compound content is 0.37 to 0.58mg/g. The water-holding capacity and oil absorption are 3.96 to 6.75 g/g and 1.80 to 2.84 g/g, respectively, and the swellability is 3.05 to 5.17 ml/g. The water-holding capacity, oil absorption and swellability of DFS reduce with the particle size decreasing, but L value shows reverse result.

Key words: apple-pear pomace, dietary fiber, physical property