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US 5,312,809 AGranted
Physiologically active substance derived from malt and process for the production thereof
AssigneeKureha Chemical Industry Co., Ltd.
InventorsYuji Maeda, Takayoshi Fujii, Masanori Ikuzawa, Kenichi Matsunaga, Tamotsu Kanoh, Shigeaki Muto
Life of this patent
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Abstract
A multi-functional physiologically active substance can be obtained from the residue of saccharified malt which is worthless other than feed for cattle. The isolation of the active substance is performed by an extraction of the residue with water or an aqueous solvent and removal of a low molecular weight fraction from the extract.
Claims6
A composition comprised of:
- 1) An extract derived from malt residue having the following properties:
- (i) said extract is a fraction having a molecular weight from 19.8.times.10.sup.4 to 22.1.times.10.sup.4 daltons as determined by the GPC-LALLS method,
- (ii) Infrared absorption spectra at 3,600-3,200 cm.sup.-1 and 1,700-1,600 cm.sup.-1,
- (iii) Proton nuclear magnetic resonance spectra having peaks at 0.5-6.0 ppm and 6.0-8.5 ppm,
- (iv) Ultraviolet absorption spectra at 200-250 nm and 250-350 nm,
- (v) Positive to phenol sulfuric acid color reaction,
- (vi) Positive to copper-Folin color reaction, and
- 2) an acceptable carrier or diluent.
5 more elements
Dependencies are inferred from the claim text.