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GEA is supporting hands-on training at Geisenheim University with process technology specifically designed for research and teaching. For the newly opened Beverage Technology Center (GTZ), the engineering group supplied a multipurpose plant that replicates industrial beverage processes on a small scale – flexible in use, broadly applicable, and designed to support both teaching and applied research.

GEA technology makes processes visible and understandable

GEA’s pilot-scale solution combines industrial process standards with didactic accessibility. It consists of a flash pasteurizer, a cleaning-in-place (CIP) and sterilisation-in-place (SIP) system, a carbonator, an automated interconnection matrix, and a separator suitable for fruit juice, beer, and wine applications. All components are skid-mounted, with an integrated maintenance walkway for optimal access – a setup specifically adapted to the demands of university-based operations.

“Students should learn how processes work – and how to design them,” says Astrid Heller, project manager at GEA and expert for non-alcoholic beverage processing. “With this setup, they can modify process sequences, understand control points, and at the same time gain insights into the hygiene and efficiency standards of industrial production.”

The automated interconnection matrix allows specific process steps to be switched on or off, enabling students and faculty to construct, modify, and analyze entire process chains. This flexibility enables a learning experience that goes far beyond conventional training models.

“Our students not only experience real industrial automation here, but also develop a deep understanding of the logic and structure of modern beverage production – from pasteurisation to filling,” explains Michael Ludwig, head of the GTZ at Geisenheim University. “We aim to train the people who will move the industry forward – in production, innovation, and product development.”

Transfer platform for academia, research, and industry

The GTZ is designed as an open center for technology and knowledge transfer. In addition to university students, the infrastructure is also used by collaborating research institutes, industrial partners, and – via Germany’s federal vocational class for fruit juice technology – even vocational school programs. Continuing education courses, technical workshops, and joint pilot projects help ensure that knowledge transfer is active and ongoing. With this approach, the GTZ strengthens Geisenheim’s position as one of Germany’s leading centers for beverage education and applied development – both alcoholic and non-alcoholic.

GEA was involved early in the project’s system planning. Even before construction began, requirements related to utilities, automation, and process integration were jointly defined – a model for successful collaboration between academia and industry.

Pilot-scale systems: a growing strategic area

For GEA, the Geisenheim project exemplifies a growing application field: scaled-down process lines for research, education, and product development. The combination of industrial-grade automation, didactic accessibility, and flexible multipurpose design makes these systems increasingly relevant – not only at universities, but also in pilot labs and innovation hubs across the beverage industry.

Scientists in Germany have discovered a new ‘super’ apple juice which has the potential to improve heart health by boosting blood flow1.

Researchers at Hochschule Geisenheim University, near Frankfurt, have found a way to maximise polyphenols in apple juice by using a novel squeezing method called a spiral filter press which actively takes out oxygen by vacuum-driven pressing. Moreover, they ensured that oxygen is excluded from all other processing steps, therefore reducing nutrient deterioration.

The new study, published in Food Research International, found that this new method boosted polyphenol content by four times as much as regular apple juice. Polyphenols are natural plant compounds found in fruit, red wine, and cocoa which are known to have a range of health benefits for the heart and brain.

A 280 ml serving of the new apple juice would be enough to provide 100 % of the ideal intake for a key group of polyphenols, called flavan-3-ols, which help promote a healthy blood flow. The ideal intake of 400 – 600 milligrams per day for cardiovascular health was proposed by an international consortium of scientists in 20222.

The British Heart Foundation estimates that there are 7.6m people living in the UK with heart or circulatory diseases3. Meanwhile, data from the 2021 census show that 32 % of adults suffered from high blood pressure (hypertension) and 3 in 10 of those (29 %) were undiagnosed; equating to approximately 4.2 million adults with undiagnosed hypertension4.

Lead author of the paper, Professor Ralf Schweiggert, commented: “Apple juice is already a source of polyphenol compounds, but you would need to drink several glasses to reach the levels recommended by scientists for heart health effects. The new juicing method that we’ve investigated takes the polyphenol content to a new level by minimising the nutrient losses we typically see during juicing.”

Co-Researcher of the study, Stefan Dussling, said: “Nutrient losses are commonly due to the presence of oxygen which quickly degrades some of the nutrients in apple juice like flavan-3-ols or vitamin C. This would happen when we juice apples at home or buy a ready-made product. We hope that the new juicing method will be used more widely in the future to help people get more of these beneficial natural compounds simply by drinking one glass of juice”.

1Dussling S et al. (2024) Analytical characterization of flavan-3-ol-rich apple juices produced with the innovative spiral filter press technology. Food Research International 180 (2024): 114055.
2Crowe-White K et al. (2022) Flavan-3-ols and Cardiometabolic Health: First Ever Dietary Bioactive Guideline. Adv Nutr 13(6):2070-2083.
3https://www.bhf.org.uk/-/media/files/for-professionals/research/heart-statistics/bhf-cvd-statistics-uk-factsheet.pdf
4https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/healthandwellbeing/