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:
Feb. 07, 1978
Filed:
Dec. 10, 1976
Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo, Okayama, JA;
Abstract
A culture medium composed of carbon source, nitrogen source and minerals was sterilized at 120.degree. for 15 minutes, inoculated with strains of the genus Streptococcus and then cultivated at 35.degree. C for 72 hours under aeration and agitation. Subsequent to the cultivation, the resultant was subjected to water-washing and sieving to obtain crude glucan. The crude glucan was then dissolved in NaOH solution and centrifuged. The recovered filtrate was neutralized with HCl and then the insolubilized glucan was collected by centrifugation. The collected glucan was washed with water thoroughly until no chloride ion was detected in the waste water and then dried to form white purified glucan powder.