Other

Tokiwa Kanpo Pharmaceutical Co., Ltd.

Inabata & Co., Ltd.

Gakko Hojin Kinki Daigaku (educational Foundation Kinki Univ.)

Junichi Iwamura

Koichiro Komai

Chozo Hayashi

Nozomu Takeuchi

A method and apparatus for isolation of a barely volatile organic compound in a sample suspected to contain the same, e.g. a dioxin, which includes continuously adding superheated steam and a volatile and hardly water-soluble/water-insoluble solvent to a liquid or solid sample suspected to contain said organic compound to be isolated, a solid sample being dissolved in said solvent which can dissolve said organic compound to be isolated, distilling off an azeotropic mixture of said organic compound and said solvent by steam distillation, separating a solvent phase of said solvent dissolving said organic compound and said water phase, and recovering quantitatively said organic compound from said solvent. The dioxins are then further subjected to analysis, for example, GC, HRGC-MS and the like.

Method for isolation of barely volatile organic compounds

A method of measurement of catalase activity in a sample suspected of containing such activity which comprises treating said sample with a peroxide, an alcohol, nicotinamide adenine dinucleotide (NAD) and an aldehyde dehydrogenase, thereby producing an aldehyde corresponding to said alcohol and converting NAD to its reduced form (NADH), measuring absorption of radiation having a wave length at the characteristic absorption band of NADH in relation to said activity.

Measurement of catalase activity

A health food comprising acid- and alkali-insoluble substances obtained as an unextractable residue on extracting defatted seeds of leguminous plants with acid and alkali. Said health food is useful in prophylactic and therapeutic treatment of obesity.

Acid and alkali insoluble food component from leguminous plants

A medicinal composition which comprises a compound of the formula:

Medicinal use of .alpha.,.beta.-unsaturated fatty acids

A plant growth regulating composition which comprises as an active ingredient at least one diterpene glucoside of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or any other cation and R.sup.2 is .beta.-glucopyranosyl-(1-2)-.beta.-glucopyranosyl or 2,3-di-O-(.beta.-glucopyranosyl-.beta.-glucopyranosyl, or R.sup.1 is .beta.-glucopyranosyl and R.sup.2 is .alpha.-rhamnopyranosyl-(1-2)-.beta.-glucopyranosyl, .beta.-glucopyranosyl-(1-2)-.beta.-glucopyranosyl, 2,3-di-O-(.beta.-glucopyranosyl)-.beta.-glucopyranosyl or (3-O-.beta.-glucopyranosyl)-(2-O-.alpha.-rhamnosyl-.beta.-glcopyranosyl).

Plant growth regulator

A process for isolating saponins and flavonoids from leguminous plant which comprises extracting a part or the whole of the said plant with an aqueous alkaline solution, separating the extract from insoluble matters comprising fibrous materials, applying the extract on non-polar or slightly polar adsorbent resin to adsorb the saponins and flavonoids on the said resin, and treating the resin with a polar solvent to elute the saponins and the flavonoids adsorbed on the said resin.

Growing community of inventors

Kashiwara, Japan

Junichi Iwamura