Sugar Industry

Author

Pollach, G.; Hein, W.; Beddie, D.
Title Application of hop Beta-acids and rosin acids in the sugar industry
Journal Zuckerindustrie
Year 2002, Vol. 127, No. 12, 921-930
Abstract In 1994, hop products were successfully used for the first time to combat bacteria in beet extraction. This was a totally new field for the use of hop products, compared with their traditional use in breweries. Today an alkaline solution of hop Beta-acids is used in sugar factories under the trademark BetaStab®. Hop Beta-acids have turned out to be very effective against formation of NO2 and anaerobic infections in tower extractors, which are often operated intentionally with lactic acid fermentation. Hop Beta-acids have additionally proved effective in the field of thick juice storage. Sometimes, in the case of lactic acid control, a selection of less sensitive organisms is observed and a second disinfectant has to be used, alternating with hops. Thus an idea was born to use rosin acids as a further harmless natural biocide. Results from laboratory trials, full scale trials and some first studies on residues are presented. Rosin acids show a potential to be used in the sugar industry, either alternating with hop products or to create products which are more cost effective.
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