Effect of K+, Ca2+ and Na+ nn gelling properties of eucheuma cottonii

Jau-Shya Lee, and Lo , Yun Lin and Chye , Fook Yee (2008) Effect of K+, Ca2+ and Na+ nn gelling properties of eucheuma cottonii. Sains Malaysiana, 37 (1). pp. 71-77. ISSN 0126-6039

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This study was carried out to elucidate the effect of three types of cation (K+, Ca2+ and Na+) at various concentrations on the gelling properties of untreated Eucheuma cottoni, with the ultimate aim to explore the possibility of utilizing the seaweed in its natural form as gelling agent. Results obtained suggest that E. cottonii also exhibited the dramatic cation specificity of k-carrageenan, in which the dependence of gel strength follows the order: K+ > Ca2+ > Na+. As expected, cations addition exerts adverse effect on the syneresis, water holding capacity and freeze-thaw stability of the seaweed gel. Water holding capcity of the gel is however independent of the increased concentrations of K+(p>0.05). Storage duration and storage temperature significantly (p<0.05) affect the syneresis and water holding capacity of the gel. Among the cations, K+ appears to be better in improving the gel properties of the seaweed.

Item Type:Article
Keywords:freeze-thaw stability; gel strength; syneresis; water holding capacity
Journal:Sains Malaysiana
ID Code:5122
Deposited By: Mr Fazli Nafiah -
Deposited On:18 Jun 2012 03:32
Last Modified:18 Jun 2012 03:32

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