Abstract:
:A novel composite foam was prepared from native cassava starch and water hyacinth (WH) by baking in a hot mold. The effects of WH powder content (0, 3, 5, 7 or 10 wt%, dry starch basis) on the properties of the starch foam were investigated. A starch foam formulation with 5 wt% WH powder exhibited the highest flexural stress at maximum load (3.42 MPa), the highest flexural strain (extension) at maximum load (3.52%), the highest modulus (232.00 MPa), the lowest moisture content (6.77%) and the most uniform cell size distribution (0.44 ± 0.09 mm). Moreover, mechanical properties of starch foam with 5 wt% WH powder were better than the same properties of some commercial foams. After being coated with beeswax, the starch foams retained their shape after immersion in distilled water and their water solubility was significantly reduced. Results indicated that a starch foam/5 wt% WH composite with beeswax coating was a biodegradable foam that could possibly replace commercial non-degradable foam.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Chaireh S,Ngasatool P,Kaewtatip Kdoi
10.1016/j.ijbiomac.2020.10.007subject
Has Abstractpub_date
2020-12-15 00:00:00pages
1382-1391issue
Pt Aeissn
0141-8130issn
1879-0003pii
S0141-8130(20)34633-Xjournal_volume
165pub_type
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