Kawasaki Steel Corporation

Tokio Iizuka

Tadahiro Wakui

Makiko Ijiri

Toshinobu Suzuki

Hitoshi Saima

Kenichi Uehara

Akinori Matsuura

Daizo Takeuchi

A DHA-containing food material includes a marine micro algae containing docosahexaenoic acid (DHA). A method of manufacturing the DHA-containing food material has the steps of culturing the marine micro algae containing DHA, separating bodies of the algae, water-washing, disinfecting and drying the bodies of the algae. A DHA-containing food including the marine micro algae containing the DHA can be directly added to a food. A method of manufacturing the DHA-containing food material may include the steps of kneading the marine micro algae containing the DHA with a food material, and heating the kneaded material.

Marine micro-algae food material containing docosahexaenoic acid, food

The improved process for preparing para-hydroxybenzoic acid comprises reacting potassium phenol with carbon dioxide in an inert reaction medium or without using a reaction medium in the presence of at least one compound selected from the group consisting of the compounds represented by the following general formula I or II: ##STR1## at a reaction temperature of 230.degree.-450.degree. C. and at a carbon dioxide pressure ranging from atmospheric pressure to 6 kg/cm.sup.2 (G). The process may comprise two stages and the first-stage reaction described above is followed by the second stage in which the reaction is further continued with the pressure of carbon dioxide in the system being reduced and/or the reaction temperature being elevated within the range specified above. Also, phenol may be used as the starting material instead of potassium phenolate.

Process for preparing para-hydroxybenzoic acid

Growing community of inventors

Chiba, Japan

Tokio Iizuka