Abstract:

Plakett-Burman (PB) design was applied to screen eight hydrocolloids commonly added in food process for the purpose of improving gel qualities of emulsion-type sausage. Carrageenan, xanthan and gellan gum were verified to significantly improve three key factors on gel quality such as gel intensity, texture property and water-holding capacity of emulsion-type sausage. Individual addition of carrageenan, xanthan and gellan gum could enhance gel qualities of emulsion-type sausage in a certain extent. Therefore, Plakett-Burman design is an efficient, accurate and reliable statistical method for screening hydrocolloids.

Key words: emulsion-type sausage, Plakett-Burman design, gel quality