Evaluation of the biodegradation performance of “traditional” and compostable packaging in the sea environment
The customer requested an evaluation of the performance of seawater biodegradability of an article consisting of a biopolymer and cellulose coupled to a polyolefin packaging.
To conduct the test, an experimental setup was prepared using static respirometers and a climatic chamber for conducting the test. The test was conducted for a period of 700 days, and at the end, the nature of the non-biodegraded fragments was evaluated, both compared with the same standard reference, according to legislation (ISO 14852:2018)
The results showed that the biodegradation of the innovative packaging is substantially similar to that observed in the reference, indicating that the biopolymer and cellulose-based product has a good ability to biodegrade in seawater. On the other hand, polyolefin packaging has shown considerable resistance to this biodegradation process, maintaining significant stability over time. It is interesting to observe the formation of small fragments in the liquid.
In addition, a marine toxicity test was conducted to assess the effects of the new product. The ecotoxicological tests also indicated that the innovative product does not present a risk of toxicity to marine organisms, confirming its environmental safety.
These results highlight the potential advantage of the biopolymer and cellulose-based product over traditional polyolefin packaging in terms of seawater biodegradability and environmental safety. The use of biodegradable materials can contribute to the reduction of environmental impact and sustainability in the packaging sector.