Ramot University Authority for Applied Research and Industrial

Technion Research & Development Foundation Limited

Korsnas Aktiebolag

Eugene Rosenberg

Yuval Shoham

The invention relates to a preparation exhibiting enzymatic activity, which preparation has the capability of delignifying wood pulp at a temperature of at least 65.degree. C. and a pH of at least 9. Further, the invention relates to a method of producing said preparation by aerobically fermentating a selected Bacillus stearothermophilus strain. Furthermore, the invention relates to two isolated Bacillus stearothermophilus strains and mutants and variants thereof. The invention also relates to applications of the preparation of the invention, namely to a process comprising treatment of wood pulp with a preparation according to the invention, and a wood pulp and a fluff pulp treated with a preparation according to the invention, and also a paper, a board and a fluff made from a wood pulp treated with a preparation according to the invention.

Preparation exhibiting enzymatic activity, a method of producing the

A compound having the following formula: ##STR1## wherein Me represents a methyl group, having an anti-bacterial activity.

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Ramat Aviv, Israel

Eugene Rosenberg