HOSOKAWA ALPINE, a leading provider in the field of powder processing technology, offers a wide range of mills and classifiers to enrich the protein content in vegetable powders. "The use of vegetable raw materials is an important approach to finding a solution that will enable the increasing demand for proteins brought about by the growing global population to be covered. The protein-shifting process developed by HOSOKAWA ALPINE makes the economic production of high-grade vegetable protein concentrates possible as a substitute for animal proteins", explains Jörg Krahnen, Operations Director of the Food Division at HOSOKAWA ALPINE.
A model to match every requirement
The operating principle of mill systems is similar: the goal is to grind the decorticated endosperm structure into its main components – starch and protein – without destroying their structure. Dependent on the product, different high-performance mills are used: as a result of the two rotating, self-cleaning pin discs, the CW Contraplex wide-chamber mill is suitable above all for grinding oilseeds such as rapeseed. The strengths of the ZPS classifier mill come to the fore especially when the fibre content is low and the aim is to achieve a defined particle size. Raw materials that are suitable for being ground with the ZPS are among others wheat and pulses such as faba beans or peas. In the subsequent classification process, an ATP Turboplex classifier separates the ground material into two fractions: a low-protein, coarse fraction and a highly protein-enriched, fine fraction.
Dry protein-enrichment process as an environmentally friendly method
The protein-shifting process makes it possible to produce vegetable proteins as an alternative to animal proteins, thus paving the way for new market opportunities. Further advantages of the dry fractionation process are the low energy and water requirement in comparison to conventional wet processing. The high-precision process thus constitutes an environmentally compatible process for tapping new protein resources.