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Survey Renewable, Bio-Based, Biodegradable, Compostable and Oxo-Degradable materials in packaging & single-use items
There is much confusion amongst consumers about single-use packaging materials labelled and marketed as 'Bio-Based', 'Biodegradable', 'Compostable', ‘Renewable’, ‘Plant-Based’ or 'Oxo-degradable'. Consumers can be misled about the promised environmental benefits and end-of-life for products labelled ‘biodegradable’.
Most Bioplastics and Oxo-Degradable plastics are Recycling Code #7, and are not recyclable when mixed with fossil-based recyclable plastic (with exception of Bio-PET and Bio-PE which are recyclable). Bioplastics are now available worldwide for many types of food packaging such as straws, hot and cold drink containers, lids, food boxes, plates, cutlery, water bottles, water soluble sachets, garbage bags, and shopping bags. The global market share for Bioplastics is projected to increase, however the responsible waste management options are rarely available to most people.
There are little to no mandatory international standards regarding the composition, labelling and marketing of these products. Some examples of labelling include, ‘eco-friendly’, ‘cornstarch plastic’, ‘renewable’, ‘plant plastic’ and ‘not plastic’.
The aim of this survey is to create an international overview of the below: - Which single-use Bioplastic and Oxo-degradable packaging and products are available globally? - Which labels and texts are printed on Bioplastic and Oxo-degradable plastic products? - Do you have an available and appropriate waste management system to handle these products after use? - Your understanding of the properties of these materials based on labelling ?
Short definitions regarding Bioplastics and Oxo-Degradable Plastic: Bio-based: A material is considered ‘bio-based’ if it is completely or partially derived from biomass. The biobase content of a material is not an indicator of the biodegradability of the material and not all bio-based bioplastics are biodegradable. There is no international standard or regulation requiring bioplastics producers to disclose the percentage of biobase content – it can range from 7 to 100%. (For further reading please scroll down to the bottom of this survey) Biodegradable: Generally, a material which degrades by microbial activity and breaks down into water, biomass, carbon dioxide and methane in a similar speed as for food, leaves or paper, is regarded as biodegradable. Not all bioplastics are biodegradable and there are some biodegradable plastics which are 100% fossil-based. The type of environment in which a material biodegrades should be indicated. Compostable (Home/ Industrial): Composting is biodegradation in composting conditions in a certain time without negatively influencing the quality of the compost. This can either be done in a backyard home compost or an industrial scale commercial composting facility where temperature, oxygen supply, microbes and moisture are highly controlled. Plastics certified as industrially compostable are not biodegradable outside of a controlled composting facility. Oxo-degradable: Oxo-degradable materials are neither bio-based nor biodegradable. They are a conventional fossil-based plastic with an additive to imitate biodegradation. At the degradation phase these materials fragment into microplastics and remain in the environment.
Recommended: facts & figures about bio-based products can be found at the bottom of this survey in Q44