Abstract: The subject of the invention is a perorally applicable preparation of vegetable origin, resistant to pepsin and trypsin, based on histaminase, optionally for the use as an agent for improving digestion, reducing appetite or reducing body weight. The preparation of the invention is a pressed juice—which is optionally in lyophilized form—obtained from seedlings of pea (Pisum sativum L.), lentil (Lens culinaris), chick pea (Cicer arietinum), grass pea (Latirus sativus), bean (Phaseolus vulgaris) or field bean (Vicia faba) or—from a mixture of seedlings of the above mentioned plants—which contains histaminase, catalase and protease inhibitor. The subject as well of the invention is the production of the above preparation.

Abstract: The invention relates to a process for the preparation of water soluble primycin and to the separation of its components of formulae (A.sub.1) and (A.sub.3) either as single components or as a mixture of the two components. According to the invention(i) water insoluble primycin is reacted in a C.sub.1-3 alcohol with a condensable substance comprising a C--C--C bridge in the presence of sodium or potassium methoxide or ethoxide, the resulting product with a water solubility of 40-60 mg/ml is separated, and, if desired,(ii) the resulting substance is subjected to column chromatography on silica gel applying a 1% aqueous solution of Partridge mixture as eluting agent to obtain a mixture of components of formulae (A.sub.1) and (A.sub.