Physiological Requirements for the Production of the Biopolymer Elsinan by Species of Elsinoe

Abstract

In order to determine optimum environmental conditions for t he production of elsinan, the following parameters were evaluated: culture conditions, growth medium, incubation period, ph, and sources and amounts of carbon, nitrogen, and phosphate. A medium was devised for the optimum yields of high (>2 million), medium (1-2 million), and low (<1 million) weight average molecular weight biopolymer products. Batch systems, scale-up batch, and continuous fermentations of one liter and 10 liters were also evaluated, as were processing conditions. Elsinan biopolymer products with weight average molecular weights from less than 500 thousand to over 2 million, with a dispersity of around two were produced. The chemical properties of these fractions were evaluated, but films and fibers were too brittle for physical analysis.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA210692

Entities

People

  • B. J. Wiley
  • D. H. Ball
  • D. L. Kaplan
  • J. M. Mayer
  • S. M. Arcidiacono

Organizations

  • United States Army Soldier Systems Center

Tags

Communities of Interest

  • Cyber
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Availability
  • Biopolymers
  • Cells
  • Chemical Properties
  • Chemistry
  • Classification
  • Engineering
  • Fermentation
  • Filtration
  • Fungi
  • Incubation
  • Metal Matrix Composites
  • Molecular Weight
  • Nitrogen
  • Physical Properties
  • Polysaccharides
  • Production

Fields of Study

  • Agricultural and Food sciences

Readers

  • Analytical Chemistry
  • Polymer Science and Technology