Measurement of Thiobarbituric Acid Value in Tissue Homogenate solubilized with Sodium Dodecylsulphate

Abstract
Determination procedures for thiobarbituric acid (TBA) reactive compounds in animal tissue homogenates were studied with sodium dodecylsulfate (SDS) as a tissue-solubilizing agent. The treatment of tissue homogenate with SDS increase the TBA value significantly; particularly, the addition of 2.5-fold SDS to protein concentration in homogenate showed maximum increase of the TBA value upon 30 min heating. The TBA increase was not at a constant rate in all tissues. The effect of SDS was not as great in young rat tissue homogenate accelerated lipid peroxidation with the treatment of ascorbate-FeCl2 or ascorbate-ADP mixture. The differences in the efficiency of SDS on TBA may depend on the physiological membrane conditions. SDS tissue-solubilizing method is useful for the exact determination of TBA in animal tissues.

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