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Featured researches published by Masami Oku.


Bulletin of the Agricultural Chemical Society of Japan | 1930

ON THE NATURAL PIGMENTS OF RAW SILK FIBRE OF THE DOMESTIC COCOON. (PART II):XANTHOPHYLL OF MULBERRY LEAVES AS A SOURCE OF YELLOW COCOON XANTHOPHYLL

Masami Oku

In previous papers I have reported the occurrence of xanthophyll in the domestic yellow cocoon and the coincidence of this pigment with that of plant origin, formerly studied by Willstatter and others. I have also discussed there that xanthophyll of the yellow cocoon should be probable to be derived biologically from that of0 mulberry leaves upon which the silk worms feed. In this research I have isolated xanthophyll from mulberry leaves in a good yield and identified it as wholly coincides with that of yellow cocoons. Experiments.


Bulletin of the Agricultural Chemical Society of Japan | 1930

ON THE NATURAL PIGMENTS OF RAW SILK FIBRE OF THE DOMESTIC COCOON. (PART II)

Masami Oku


Bulletin of the Agricultural Chemical Society of Japan | 1933

On the Natural Pigments of Raw Silk Fibre of the Domestic Cocoon. (Part V)

Masami Oku


Bulletin of the Agricultural Chemical Society of Japan | 1942

On the Manufacture of Artificial Fibres from Proteins. (Part III)

Masami Oku; Yutaka Hosokawa


Bulletin of the Agricultural Chemical Society of Japan | 1938

On the Fixation of Sericin of Raw Silk. (Part VIII)

Masami Oku; Zirô Hirose


Bulletin of the Agricultural Chemical Society of Japan | 1936

On the chemical Constituents of the Bark of Mulberry tree. (I)

Masami Oku


Bulletin of the Agricultural Chemical Society of Japan | 1934

On the Natural Pigments of Raw Silk Fibre of the Domestic Cocoon (Part VIII):Isoquercitrin from Mulberry Leaves

Masami Oku


Bulletin of the Agricultural Chemical Society of Japan | 1934

Bombilupeol, a Colorless Crystallizable Constituent of the Alcoholic Extract of the Domestic Cocoon, (Résumé)

Masami Oku


Bulletin of the Agricultural Chemical Society of Japan | 1934

On the Natural Pigments of Raw Silk Fibre of the Domestic Cocoon (Part VII)

Masami Oku


Bulletin of the Agricultural Chemical Society of Japan | 1934

On the Natural Pigments of Raw Silk Fibre of the Domestic Cocoon (Part VIII)

Masami Oku

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