Physical And Mechanical Properties Of Films Prepared Using Jackfruit Waste Flour And Polyvinyl Alcohol
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Date
2015-03
Authors
SAREBANHA, SANAZ
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Abstract
The use of petroleum based plastic cause serious damage to environment and
the plastic takes a long time to degrade. Thus, the existence of biodegradable plastic
may serve as a promising solution to this problem. The objectives of this study are to
produce biodegradable film from Jackfruit waste flour (JWF), poly vinyl alcohol
(PVOH) and glycerol and to study the characterization of the film in physical and
mechanical properties and biodegradability. Jackfruit rind waste flour (JFRW) were
initially characterized for their composition which revealed them to encompass high
protein (16.7%), fat (4.2%), ash (3.3%) and carbohydrate (68.5%) contents with a
moisture level of 7.2% (d.w.). On the other hand, Jackfruit seed waste flour also were
characterized to have protein (11.7%), fat (0.77%), ash (3.3%) and carbohydrate
(80.2%) contents with a moisture level of 3.9% (d.w.) This research was conducted
by manipulating the different concentration of Jackfruit waste flour and PVOH while
the concentration of glycerol was kept constant. The films were obtained by using
mixing and casting method before leave for drying process. The characteristic of
biodegradable films were evaluated using equipments like Testing Machine, Fourier
transform infrared spectroscopy (FTIR) and Gas Permeability machine. The films also
characterized in thickness, tensile strength, elongation at break, solubility, color and
heat seal strength. The film at high concentration of JWF showed the highest
thickness, water vapor permeability and oxygen permeability and the lowest tensile,
elongation at break, solubility and heat seal strength. However, the film with high
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PVOH concentration exhibit the stronger tensile stress due to its properties. The FTIR
test identified O-H stretching was at peak of 3245 cm-1 and C-H stretching were at
peak of 2908 cm-1 and 1324 cm-1 respectively. As a conclusion, the blended film from
JWF, PVOH and glycerol had potential application in future to be used as food
packaging and at conserve the environment.
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Keywords
Physical And Mechanical Properties Of Films Prepared , Using Jackfruit Waste Flour And Polyvinyl Alcohol