According to Plastics Europe, 98.5% of plastics today are derived from oil. This figure is striking when one considers that, historically, the first plastics were derived from natural resources: latex from rubber trees, cellulose from wood, and casein from milk. In light of today’s environmental challenges, a return to our roots is beginning to take shape.
This revolution in bio-based materials is part of a broader approach to the circular economy and reducing the carbon footprint. Unlike traditional plastics derived from non-renewable fossil resources, these new materials draw on resources that regenerate naturally.
There is a growing number of initiatives aimed at developing bio-based materials fromflax, hemp, bamboo, maize, sugarcane and even bacteria. But are these alternatives really the miracle cure for plastic pollution?
As we mentioned in our articles on bioplastics and PLA, the advantage of agricultural waste lies in the use of co-products, thus avoiding direct competition with food for human consumption.
Whilst these materials show promising properties in the laboratory, scaling them up to industrial production remains a complex challenge. Current production volumes are not yet sufficient to meet the full range of market needs.
Not all bio-based plastics are yet on a par with traditional plastics:
The production cost of bio-based materials generally remains higher than that of conventional plastics. This price difference is a major obstacle to widespread adoption by manufacturers.
Rather than a total and immediate replacement, we are likely witnessing the emergence of a diverse ecosystem in which each material will find its optimal applications:
For applications requiring high performance and recyclability
For short-term, single-use applications and primary packaging
For specific applications where no viable alternative currently exists
Combining different natural fibres or blending them with small amounts of conventional plastic can help to optimise the material’s final properties.
The use of bacteria to produce bioplastics opens up entirely new possibilities. These microorganisms can convert organic waste into polymers with controlled properties (PHA, PHB, etc.).
The development of natural additives such as Evanosto, developed by a Limagrain subsidiary (Carbiolice) in Auvergne, helps to improve the compostability of existing materials — including for home composting.
At Laboratoires Pichot, we support our customers in this transition towards more sustainable solutions. We already offerPLA bottles certified as OK Compost INDUSTRIAL and we keep a close eye on innovations to expand our range of eco-friendly packaging.
This shift towards bio-based materials is still in its infancy, but it represents a promising avenue. The key to success will lie in our ability to tailor each solution to the specific requirements of each application, whilst keeping performance and cost considerations in mind.