Nutrient content and distribution in a low-protein (7.5 %) rice and a high-protein (10.8 %) rice were studied by analysing successive abrasive milling fractions of brown rice. Non-starch constituents decreased from the surface to the centre of the grain in both rices, except that the highest protein fraction in high-protein rice was the subaleurone layer. Starch and amylose contents of starch increased progressively from the surface to the centre of the grain and were lower in high-protein grain. Although this low-protein rice had lower total ash content than the high-protein rice, other samples of the same low-protein rice had comparable ash content to the highprotein rice. Glutelin accounted for 87-93% of milled rice protein. Protein and protein bodies of the sub-aleurone layer and inner endosperm have similar aminograms, and electrophoretic patterns using analytical and SDS-polyacrylamide disc gels.

Coriolus sp. No. 20 decolorized a melanoidin solution, a decrease of about 80%in darkness under the optimal conditions. This decolorization occurred with an intracellular enzyme which was prepared from an extract of integrated mycelia, and required aeration and some kinds of sugars, particularly glucose and sorbose. The fraction with melanoidin-decolorizing activity was collected and purified by DEAE-cellulose and Sephadex G-200 column chromatographies. The optimal pH and temperature were pH 4.5 and 35°C, respectively. The molecular weight was found to be about 200,000 by SDS-gel electrophoresis. The purified enzyme was identified as sorbose oxidase; decolorization proceeded in the presence of oxygen and sugars such as maltose, sucrose, lactose, galactose and xylose, besides glucose and sorbose. Glucose in the reaction mixture was converted to gluconic acid. Melanoidin was suggested to be decolorized by the active oxygen formed.

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Feces protein particles (FPP), spherical or oval in shape, 1.0•`3.5ƒÊ in diameter, which were observed in the fresh feces of the Japanese, in an average density of 5•~109/g, resembled

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