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From milk to milk packaging

Gregory Patience École Polytechnique

Processing

Targeted research priorities

Milk quality
The aim of this research project is to improve milk quality by proposing new packaging formulation techniques.

Eco-efficient processing
By using lactose from milk and whey permeates to transform it into lactic acid, this project could improve the eco-efficiency of the dairy industry.

Project summary

The dairy industry produces large volumes of milk and whey permeates that are difficult to valorize. The lactose contained in these permeates represents an opportunity to produce high-value chemical compounds. This research project aims to improve the sustainability of milk packaging by using lactose as a raw material.

The research team is focusing on the development of innovative and sustainable polymers for packaging, based on the lactose contained in permeate and whey. They are exploring the use of bioplastics and recyclable materials made from lactic acid to extend the shelf life of milk.

The new packages aim to add value to the lactose in the co-products of dairy processing. This research is an exploration of potential avenues for superior milk quality and better use of lactose from dairy co-products.

Expected results

The expected results of this research include several key steps. Using milk and whey permeate samples, the team will carry out analyses aimed at identifying an effective catalyst for converting lactose into lactic acid with a yield of over 96%. The research team will test different types of reactor to find the one that works best for this conversion.

A proof of concept to produce lactic acid will be carried out and could lead to the development of a patent for this new technology, enabling us to obtain high-quality lactic acid with a purity of over 95%.

The project also aims to assess the environmental impact and economic aspects of the processes developed, and to make recommendations for a transition to pilot scale. The project aims to generate innovative technologies related to separation, chemical synthesis and reactor systems, with a clear path to commercialization.