Premium
MARINE CRYPTOMONAD STARCH FROM AUTOLYSIS OF GLYCEROL‐GROWN CHROOMONAS SALINA 1
Author(s) -
Antia Naval J.,
Cheng Joseph Y.,
Foyle Richard A. J.,
Percival Elizabeth
Publication year - 1979
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1979.tb02962.x
Subject(s) - biology , starch , amylopectin , amylose , glycerol , botany , glucan , autolysis (biology) , food science , polysaccharide , biochemistry , enzyme
The extracellular starch released by autolysis of glycerol‐grown Chroomonas salina (Wislouch) Butcher was purified and chemically characterized. It contained 99% D‐ glucose, formed a blue complex (λmax at 605 nm) with iodine, and showed an optical rotation value more positive than that of potato starch. Methylation analysis established the presence of 1,4‐ and 1,4,6‐glucoside linkages in the proportion 15:1. These properties indicate the cryptomonad starch to be an iodophilic α‐(1,4)‐glucan, composed of ca. 30% amylose with amylopectin, and broadly resembling potato, Chilomonas and other unicellular algal starches.