
BioSupPack
Demonstrative process for the production and enzymatic recycling of environmentally safe, superior and versatile PHA-based rigid packaging solutions by plasma integration in the value chain.

Demonstrative process for the production and enzymatic recycling of environmentally safe, superior and versatile PHA-based rigid packaging solutions by plasma integration in the value chain.
The increasing public desire for sustainable products is driving a growing demand for bioplastics in the packing sector in order to minimise environmental impacts. Biopolymers such as polyhydroxyalkanoates (PHAs) – which are 100% bio-based and have exceptional biodegradability characteristics - have proven particularly popular. So popular, in fact, that they are expected to rise from 1.2% to 6.6% of the global production of bioplastics. However, meeting this growing demand will require further sources of raw materials without affecting biowaste value chains; the challenge will therefore be to rely on second and third generation sugar sources, rather than primary ones.
A potential source of these raw materials is brew spent grains, which is a by-product of the brewing industry. Its use as a feedstock is currently limited; most of it goes to animal feed, some for bioethanol, while 20% goes to landfill. It is a challenging raw material – it has a high moisture content, low levels of fermentable sugar content and can spoil quickly. At the same time, however, it offers a number of potential advantages as a feedstock for PHA. It is produced in substantial quantities, it is widely available all year round, is relatively stable (compared to other food-based by-products) and the prior malting and mashing make it relatively easily to isolate the 2G sugars.
The ultimate goal of the BioSupPack project is to deliver novel, cost-competitive and versatile bio-based packaging solutions based on PHA. These will be derived from highly (>85%) renewable, second- and third-generation raw materials, and will provide high-performance packaging for food and drink, cosmetics and homecare products.