The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Feb. 26, 2001
Sunil Kumar Chattopadhyay, Uttar Pradesh, IN;
Sachin Srivastava, Uttar Pradesh, IN;
Koneni Venkata Sashidhara, Uttar Pradesh, IN;
Vinayah Tripathi, Uttar Pradesh, IN;
Sushil Kumar, Uttar Pradesh, IN;
Council of Scientific & Industrial Research, New Delhi, IN;
Abstract
A process has been developed for production of a food flavoring compound maltol which comprises (a) extracting the dried and pulverized leaves of the plants belonging to the genus Abies with an alcohol at 20-40° C. and concentrating the solvent to obtain an alcoholic extract, (b) adsorbing the alcoholic extract with an adsorbent and drying the adsorbed material at a temperature ranging between 20-50° C., (d) partitioning of the adsorbed material between selected solvents consisting of aliphatic hydrocarbon and chlorinated solvent successively, (d) concentrating the chlorinated solvent to a residue and crystallizing it from a suitable organic solvent or mixtures of such solvents to get pure maltol.