Abstract: The invention relates to a coloring additive for food or feed, comprising a water extract of sweet chestnut wood comprising sweet chestnut tannins. The additive can be in granular or liquid form. The amount of tannins in the sweet chestnut wood extract is about 40 wt % or more, preferably 40 to 60 wt % expressed as total polyphenols, calculated on dry matter. The coloring additive is a.o. suitable as replacement of caramel color class IV in soft drinks.

Abstract: The present invention relates to formulations for animal feed comprising coated granules comprising butyrate salt; the butyrate salt is preferably the salt of sodium or calcium salt. The coated granules have a particle size of 0.1 mm or more, preferably 0.2 mm or more and about 2 mm or less, and preferably about 1 mm or less. The coated granules comprise a binder and a coating. Further, the butyrate salt can be combined with another active ingredient which may be chosen from the group consisting of plant extracts, prebiotic compounds, probiotics, yeast extracts, middle-length chain fatty acids, unsaturated long chain fatty acids, lactate salt, fat soluble vitamin, and toxin absorbing compound.