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 language | English (US) |
|---|---|
| Pages (from-to) | 1409-1412 |
| Number of pages | 4 |
| Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
| Volume | 35 |
| Issue number | 8 |
| DOIs | |
| State | Published - Jan 1 1997 |
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All Science Journal Classification (ASJC) codes
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry
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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 journal › Article
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.
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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 -