Premium
Effects of Various Plasticizers and Nanoclays on the Mechanical Properties of Red Algae Film
Author(s) -
Jang S.A.,
Shin Y.J.,
Seo Y.B.,
Song K.B.
Publication year - 2011
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.1750-3841.2011.02089.x
Subject(s) - plasticizer , ultimate tensile strength , materials science , elongation , sorbitol , glycerol , food packaging , composite number , fructose , composite material , polypropylene , chemical engineering , chemistry , food science , organic chemistry , engineering
To manufacture red algae (RA) film, we used various plasticizers such as glycerol, sorbitol, sucrose, fructose, and polypropylene glycol (PPG), and then determined the mechanical properties of the RA films. The tensile strength (TS), elongation at break (E), and water vapor permeability (WVP) of the films containing various plasticizers ranged between 0.43 to 9.10 MPa, 10.93% to 47.17%, and 1.28 to 1.42 ng m/m 2 sPa, respectively. RA films containing fructose as a plasticizer had the best mechanical properties of all the films evaluated. Incorporation of nanoclay (Cloisite Na + and 30B) improved the mechanical properties of the films. RA film with 3% Cloisite Na + had a TS of 10.89, while RA film with 30B had a TS of 10.85 MPa; these films also had better E and WVP values than the other RA films evaluated. These results suggest that RA/nanoclay composite films are suitable for use as food packaging materials. Practical Application: Edible RE/nanoclay composite films prepared in the present investigation can be applied in food packaging.