Kathrin Vollmer

Nonthermal processing of pineapple (Ananas comosus [L.] Merr.) juice

For the 5th time now the Quality Juice Award, the prize for a research project on fruit juice of the Quality Juice Foundation, has been bestowed. This year's winner, Kathrin Vollmer from the University of Hohenheim in Stuttgart, received the symbolic cheque with the prize money of EUR 2,500 on 1 October at the international fruit juice conference Juice Summit and presented the results of her doctoral thesis entitled “Nonthermal processing of pineapple (Ananas comosus [L.] Merr.) juice”.

In her thesis, she has investigated the efficacy of two innovative and highly promising non-thermal technologies for the processing of pineapple juice: pressure change technology and pulsed light technology. The conducted research work provides valuable and comprehensive insights into the effects of both technologies on the juice quality.

As a result, she stated that both technologies demonstrated to be reasonable and persuasive alternatives for the production of natural fresh-like juices with extended shelf life and superior quality. Her findings are of high relevance for the fruit juice industry as they may help to optimise the fruit processing performances.

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