[Effect of tannic acid treatment on the physico-chemical properties of glutaraldehyde-fixed bovine jugular vein].
OBJECTIVE
To evaluate the effects of tannic acid (TA) treatment on the physico-chemical properties of glutaraldehyde (Glut)-fixed bovine jugular vein (BJV).


METHODS
Fresh BJVs were treated with Glut or Glut/TA, respectively. The shrinkage temperature, resistance to collagenase or elastase digestion, bio-mechanical properties, and molecular structure of these prepared BJVs were evaluated by Fourier transform infrared spectroscopy.


RESULTS
TA treatment resulted in higher shrinkage temperature (P < 0.01), higher resistance to collagenase or elastase digestion (P < 0.01), slightly increased tensile strength (P < 0.01), and elongation at break (P < 0.05) in Glut/TA BJV walls when compared with those of Glut group. Chemical bonds existed between TA and JBV tissue.


CONCLUSIONS
TA treatment can effectively improve the physicochemical properties of Glut-fixed BJVs.
De
Wang
W
Research Center for Cardiovascular Regenerative Medicine of the Ministry of Health, Cardiovascular Institute and Fu Wai Hospital, CAMS and PUMC, Beijing 100037, China.
Zhou
Jian-Ye
JY
Hu
Sheng-Shou
SS
Jiang
Hong
H
Wang
Sheng
S
Li
Jun
J