Iodine binding capacity and iodine binding energy of glycogen

Douglas N. Lecker, Sangeeta Kumari, Arshad Khan

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The iodine binding capacity (IBC) of glycogen is around 0.30% (w/w) at 3°C. The amount of iodine complexed comprises about 12.5% of the mass of glycogen that takes part in the glycogen-iodine (GI) complex formation. This suggests involvement of four iodine atoms for every 25 anhydroglucose units (AGU, C6H10O5). Since the chromophore is due to the I4 unit within the helix of 11 AGUs, only 44% of the AGUs (11 out of 25) are involved in the complex formation. The heat of formation of the GI complex is around -40 kJ/mol of I2 bonded. These results suggest remarkable similarities with those of the amylopectin-iodine (API) complex.

Original languageEnglish (US)
Pages (from-to)1409-1412
Number of pages4
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume35
Issue number8
DOIs
StatePublished - Jan 1 1997

Fingerprint

Binding energy
Iodine
Glycogen
Amylopectins
Amylopectin
Chromophores
Atoms

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Lecker, Douglas N. ; Kumari, Sangeeta ; Khan, Arshad. / Iodine binding capacity and iodine binding energy of glycogen. In: Journal of Polymer Science, Part A: Polymer Chemistry. 1997 ; Vol. 35, No. 8. pp. 1409-1412.
@article{99c4458b73c54073829f0a4ce0567dbd,
title = "Iodine binding capacity and iodine binding energy of glycogen",
abstract = "The iodine binding capacity (IBC) of glycogen is around 0.30{\%} (w/w) at 3°C. The amount of iodine complexed comprises about 12.5{\%} of the mass of glycogen that takes part in the glycogen-iodine (GI) complex formation. This suggests involvement of four iodine atoms for every 25 anhydroglucose units (AGU, C6H10O5). Since the chromophore is due to the I4 unit within the helix of 11 AGUs, only 44{\%} of the AGUs (11 out of 25) are involved in the complex formation. The heat of formation of the GI complex is around -40 kJ/mol of I2 bonded. These results suggest remarkable similarities with those of the amylopectin-iodine (API) complex.",
author = "Lecker, {Douglas N.} and Sangeeta Kumari and Arshad Khan",
year = "1997",
month = "1",
day = "1",
doi = "10.1002/(SICI)1099-0518(199706)35:8<1409::AID-POLA9>3.0.CO;2-U",
language = "English (US)",
volume = "35",
pages = "1409--1412",
journal = "Journal of Polymer Science, Part A: Polymer Chemistry",
issn = "0887-624X",
publisher = "John Wiley and Sons Inc.",
number = "8",

}

Iodine binding capacity and iodine binding energy of glycogen. / Lecker, Douglas N.; Kumari, Sangeeta; Khan, Arshad.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 35, No. 8, 01.01.1997, p. 1409-1412.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Iodine binding capacity and iodine binding energy of glycogen

AU - Lecker, Douglas N.

AU - Kumari, Sangeeta

AU - Khan, Arshad

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The iodine binding capacity (IBC) of glycogen is around 0.30% (w/w) at 3°C. The amount of iodine complexed comprises about 12.5% of the mass of glycogen that takes part in the glycogen-iodine (GI) complex formation. This suggests involvement of four iodine atoms for every 25 anhydroglucose units (AGU, C6H10O5). Since the chromophore is due to the I4 unit within the helix of 11 AGUs, only 44% of the AGUs (11 out of 25) are involved in the complex formation. The heat of formation of the GI complex is around -40 kJ/mol of I2 bonded. These results suggest remarkable similarities with those of the amylopectin-iodine (API) complex.

AB - The iodine binding capacity (IBC) of glycogen is around 0.30% (w/w) at 3°C. The amount of iodine complexed comprises about 12.5% of the mass of glycogen that takes part in the glycogen-iodine (GI) complex formation. This suggests involvement of four iodine atoms for every 25 anhydroglucose units (AGU, C6H10O5). Since the chromophore is due to the I4 unit within the helix of 11 AGUs, only 44% of the AGUs (11 out of 25) are involved in the complex formation. The heat of formation of the GI complex is around -40 kJ/mol of I2 bonded. These results suggest remarkable similarities with those of the amylopectin-iodine (API) complex.

UR - http://www.scopus.com/inward/record.url?scp=0031163401&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031163401&partnerID=8YFLogxK

U2 - 10.1002/(SICI)1099-0518(199706)35:8<1409::AID-POLA9>3.0.CO;2-U

DO - 10.1002/(SICI)1099-0518(199706)35:8<1409::AID-POLA9>3.0.CO;2-U

M3 - Article

VL - 35

SP - 1409

EP - 1412

JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

SN - 0887-624X

IS - 8

ER -