Fabrication and characterization of jeltrate alginate blend with jackfruit seed starch for biodegradable plastic / Muhammad Nasruddin Nasri Zainal

The Jackfruit (Artocarpus heterophyllus) seeds contain high portion of amylose,
which makes them potential materials for biodegradable films. The objective of this
study is to develop biodegradable plastics composed of jackfruit seed flours mix with
Jeltrate Alginate flour and some of glycerol as plasticizer. The plastics were prepared
by dispersing flours in water, adding O.1M of hydrochloric acid, 0.1M of sodium
hydroxide, glycerol and some formalin, heating the mixture, casting the solution in a
molding, and dried them at room temperature for 4 hours. Glycerol contributes to the
flexibility of the samples, while reduces the strength of the film. The tensile strength
and elongation at break (tensile strain) increase as the percentage of thermoplastic
starch increases and Jeltrate alginate as constant variable. The degradation
components in the fabricated bioplastic after 8 weeks buried in the soil were,
obviously an O-H bond and Si-H (saline) bond. The most degradation in bonds in the
fabricated bioplastic is sample E which have ratio of 1:1 of starch and Jeltrate
alginate respectively. Therefore, Jackfruit's seed starch and Jeltrate alginate are
Potential raw material for biodegradable bioplastic.