Patent · US Expired

Method of producing reticulated cellulose having type II crystalline cellulose

US5871978A · kind A · utility

6Cited by
5References
20Claims
0Family size

Inventors

Key dates

Filing dateMay 17, 1995
Grant dateFeb 16, 1999
Priority date
Expiry dateMay 17, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S435/823
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

A method and media are provided for producing bacterial cellulose under agitated culture conditions resulting in sustained production over an average of 70 hours of at least 0.1 g/liter per hour are achieved. A unique reticulated cellulose product is produced using the methods and conditions claimed, and may be in the form of a sheet characterized by substantial resistance to densification and great tensile strength when produced by sheet forming means. Strains of Acetobacter that are stable under agitated culture conditions and that exhibit substantially reduced gluconic and keto-gluconic acids production are described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.