EFFECTS OF STERILIZATION TREATMENTS ON SOME PROPERTIES OF ALGINATE SOLUTIONS AND GELS

被引：82
作者：
LEO, WJ
MCLOUGHLIN, AJ
MALONE, DM
机构：
[1] Department of Industrial Microbiology, University College Dublin, Dublin, Belfield
[2] Department of Chemical Engineering, University College Dublin, Dublin
来源：
BIOTECHNOLOGY PROGRESS | 1990年 / 6卷 / 01期
关键词：
D O I：
10.1021/bp00001a008
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Aqueous sodium alginate solutions were subjected to various heat sterilization treatments. Sodium alginate powder was also treated by both gM‐irradiation and ethylene oxide sterilization. The effects of these treatments on the viscosities of sodium alginate solutions and both the diameter and strength of the beads formed in 0.1 M CaCl2 solutions were determined quantitatively. The viscosity of sodium alginate solutions and the gel strength of the calcium alginate beads decreased with increasing sterilization temperature while the bead diameters were found to increase. All these effects can be attributable to a reduction in the degree of polymerization of the alginate molecules as a result of the heat treatments. Ethylene oxide and γ‐irradiation treatments caused similar effects. Standard conditions for sterilization are necessary for comparative studies with alginate beads. Copyright © 1990 American Institute of Chemical Engineers (AIChE)
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页码：51 / 53
页数：3
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