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Company news



16 Dec 2022

Plant-based raw materials cover increasing demand for proteins: Hosokawa Alpine presents product-specific solutions for protein dry fractionation in plant-based foods

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.

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 Contraplex CW II wide-chamber mill is suitable above all for grinding fatty and/or fibrous products. 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.

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24 Nov 2022

Gentle grinding for high product quality: Hosokawa Alpine AG shines with modern solutions for spice processing

The comminution of products with natural origin such as spices and herbs is a complex process and places specific requirements on mills and systems, such as gentle grinding, to ensure high product quality. From cleaning to grinding, Hosokawa Alpine has developed a range of solutions that are optimally adapted to the demanding conditions of spices, herbs, teas or roots.

Whether spices, medicinal herbs, dried vegetables or roots: the processing of natural products is individual and depends on the customer's requirements and the diverse properties of the product. In addition to hardness, size, colour, oil content and viscosity, quality fluctuations due to the natural origin also play an important role. Hosokawa Alpine, one of the leading suppliers in the field of powder and particle processing, has also taken into account wear, temperature changes as well as fire and explosion risks to ensure a smooth process.

 Cleaning of raw material

The raw material comes directly from the field and often contains impurities that have to be removed to obtain a high-quality product. These impurities can be light, such as hair or foil, or heavy impurities, such as stones, stems or metal parts, and can be removed with the Hosokawa Alpine MZM Multi-Plex zigzag classifier. The classifying takes place at every change in direction of the zigzag tube. Depending on the performance requirements, a throughput of a few kilograms to several tonnes per hour can be achieved. The MZM classifier also impresses with its simple operation and low-maintenance, low-wear design. It is used, for example, in the processing of tea, coriander or hibiscus.

Cutting and pre-crushing

If crushing or cutting is necessary, Hosokawa Alpine has developed the Rotoplex granulator. For example, spices such as ginger, chilli or herbs such as oregano are ground into a uniformly fine cut with a minimum of dust. The Rotoplex is particularly suitable for cutting tea.  Depending on the size of the machine, throughputs ranging from a few kilograms to several tonnes can be realised with customized fineness requirements.

 Fine grinding solutions from Hosokawa Alpine: Flexible and powerful

The Ultraplex UPZ fine impact mill is a universal spice mill with various grinding tools (e.g. pin discs or plate beater, combined with sieve or grinding tracks) and adjustable rotor speeds. It is the first choice for root spices, seeds, fruit skins and hard seed pods. Grinding behaviour, throughput and product quality depend on parameters such as moisture content or purity. Different sizes, explosion protection and easy cleaning make the Ultraplex fine impact mill a flexible solution for grinding a wide variety of spices.

For oily seed spices, the energy-efficient Contraplex CW II fine impact mill is a reliable solution. Together with the special drop shape of the wide-chamber housing, two counter-driven pin discs ensure a high relative speed and few deposits, even with greasy or moist products.

 Cryogenic fine grinding for oily products

The heat generated during ultra-fine grinding can cause essential oils to evaporate or heat-sensitive fats to melt, which can lead to agglomerates or blockages in the mill. However, as essential oils are responsible for the market value and flavour of the spices, spices containing oil must be processed very gently, for example by cryogenic grinding with liquid nitrogen or conditioned air. Hosokawa Alpine has configured its systems with vacuum-insulated nitrogen tanks, stainless steel design, an insulated circuit and cryogenic control valve unit for nitrogen dosing specifically for operation under cryogenic conditions.

 Turnkey solutions with partners from the entire Hosokawa Group

Together with various partners from the Hosokawa Group, Hosokawa Alpine can offer complete solutions for spice production. Technologies for mixing and steam sterilisation are supplied by Hosokawa Micron B.V. from the Netherlands. Hosokawa Solids in Landsberg is responsible for systems for conveying, storage, weighing and dosing. The customers thus get a system that is directly tailored to their individual needs and in which the individual machines harmonise perfectly.

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