Novel composite foam made from starch and water hyacinth with beeswax coating for food packaging applications.

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 Macromol

authors

Chaireh S,Ngasatool P,Kaewtatip K

doi

10.1016/j.ijbiomac.2020.10.007

subject

Has Abstract

pub_date

2020-12-15 00:00:00

pages

1382-1391

issue

Pt A

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(20)34633-X

journal_volume

165

pub_type

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