Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of...
Reexamination Certificate
2005-05-17
2005-05-17
Naff, David M. (Department: 1651)
Chemistry: molecular biology and microbiology
Micro-organism, per se ; compositions thereof; proces of...
C426S061000, C426S531000, C426S532000, C435S244000, C435S256800
Reexamination Certificate
active
06893857
ABSTRACT:
The invention relates to a method for controlling microorganisms in a sugar-containing aqueous process medium, especially in the sugar industry, using hop bitter acid as active substance. The hop bitter acid is dissolved in an aqueous alkaline medium and added to the process medium. The pH value of the added solution is higher than the pH value of the process medium and the hop bitter acid passes from the dissociated to the indissociated form in the process medium.
REFERENCES:
patent: 5286506 (1994-02-01), Millis et al.
patent: 0681029 (1995-11-01), None
patent: WO 9733971 (1997-01-01), None
“Membrane Leakage InBacillusSubtilis 168 Induced By The Hop Constituents Lupulone, Humulone, Isohumulone And Humulinic Acid”, Teuber, et al. Abteilung Mikrobiologie, Institut Fur Botanik Der Technischen Universitat Munchen,Arch. Mikrobiol.94, 159-171 (1973)-Springer-Verlag 1973.
Beddie David
Maye John-Paul
Pollach Gunter
Beta Tec Hopfenprodukte GmbH
Merchant & Gould P.C.
Naff David M.
Ware Deborah K.
Zuckerforschung Tulln GmbH
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