𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Levans. II. Light-scattering and sedimentation data of Streptococcus salivarius levan in water

✍ Scribed by S. S. Stivala; W. S. Bahary; L. W. Long; J. Ehrlich; E. Newbrun

Publisher
Wiley (John Wiley & Sons)
Year
1975
Tongue
English
Weight
491 KB
Volume
14
Category
Article
ISSN
0006-3525

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The molecular weights and radii of gyration of Streptococcus salivarius levan fractions were obtained from light‐scattering measurements in water. Sedimentation coefficients and partial specific volumes of the fractions were also obtained. Double logarithmic plots of [η] versus M̄~w~ and S^0^ versus M̄~w~ yielded slopes having values of 0.17 and 0.62, respectively. The data and various calculated parameters show that levan from Streptococcus salivarius is highly branched and behaves hydrodynamically as a compact particle of spherical symmetry.

📜 SIMILAR VOLUMES

Levans. III. A light-scattering study of
Levans. III. A light-scattering study of Streptococcus salivarius levan in dimethyl sulfoxide
✍ W. S. Bahary; S. S. Stivala; E. Newbrun; J. Ehrlich 📂 Article 📅 1975 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 602 KB

A light-scattering study of unfractionated and five fractions of Streptococcus saliuarius levan was performed in dimethyl sulfoxide. The weight-average molecular weights &ifr, in dimethyl sulfoxide, after adequate dissolution, agree with those obtained in water within a mean difference of 7%. The in

Conformation of amylose in water. I. Lig
Conformation of amylose in water. I. Light-scattering and sedimentation-equilibrium measurements
✍ M. Kodama; H. Noda; T. Kamata 📂 Article 📅 1978 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 756 KB

## Abstract The conformation of amylose in aqueous solution has been found to be dependent on its molecular weight. When the molecular weight of amylose is outside of the so‐called “dissolving gap” described by Burchard (6500<__M__~__r__~<160,000) it behaves as a random coil, whereas when its molec