RESEARCHERS at the University of San Carlos developed bioplastic made from shrimp waste that has potential use for packaging.

The project was supported by the Southeast Asian Regional Center for Graduate Study and Research in Agriculture through its Grants for Research toward Agriculture and Innovative Solutions. The grant was awarded in 2022 to the team led by Dr. Maria Kristina Paler.

The team said that processing frozen shrimp meat for export generates tons of waste in the form of shrimp heads and shells, which are disposed of in landfills for a fee. They said that the Philippines is among the top contributors of plastic waste in the marine ecosystem.

To address this issue, Dr. Paler and her team identified industry requirements for packaging materials, such as barrier properties for shelf-life preservation, film printability, lamination with good strength, and heat-sealing properties.

The team created chitosan films with organic or clay nanofillers, which were tested and found to have potential for single-use plastic cover.

Other additives were recommended to make the current prototypes heat-sealable.

SEARCA Director Dr. Glenn Gregorio commended the USC project team for seeking solutions to transform industries affecting the agriculture sector.

“Innovations, which aim to reduce waste and protect our planet, are critical toward achieving sustainable production and consumption,” he said.

“The next step is to widen the potential use of chitosan-based film for industrial applications by improving its thermoplastic property,” Gregorio added.

The USC project team submitted its findings for publication to encourage further support and collaboration in developing eco-friendly packaging.

“This breakthrough could help reduce plastic waste from the shrimp industry and contribute to a cleaner environment,” Gregorio said.