Title:
METHOD OF PRODUCING TASTY FLAVORFUL SUBSTANCE, MIXTURE OF PRECURSOR OF FLAVORFUL SUBSTANCE AND FLAVORING COMPOSITION
Document Type and Number:
Japanese Patent JPH0698715
Kind Code:
A
Abstract:
PURPOSE: To obtain a tasty flavor material consisting of methyl substd. furanthiol and its deriv. in a high yield by allowing a specified keto compd. to react with cysteine. CONSTITUTION: A blend of (2),(5)-(di)methyl-3(2H)-furanone or its precursor, e.g. diacetyl, pyruvaldehyde or pyruvic acid, cysteine and hydrogen sulfide in a molar ratio of 1:(7-9):(3-5) is charged into an autoclave and brought into reaction at pH 2-6 and 90-120 deg.C for 1-3 hr in a polar solvent contg. <=5 W/W% water under pressure in the presence of air to obtain the objective methyl substd. furanthiol and its deriv.
Inventors:
HETSUSERU TAAKUSUMA
Application Number:
JP14286593A
Publication Date:
April 12, 1994
Filing Date:
May 21, 1993
Export Citation:
Assignee:
QUEST INT
International Classes:
A23L1/00; A23L27/20; A23L27/26; C07D307/58; C07D307/64; (IPC1-7): A23L1/226; A23L1/00
Attorney, Agent or Firm:
Yuzo Yamazaki (2 outside)
Next Patent: PRODUCTION OF MALTED RICE