Effects of Humidity-stabilizing Sheets on the Quality of Bigeye Tuna Meat (Thunnus obesus) during Refrigerated Storage

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SAITO K., Ahhmed A. , Kawahara S., Sugimoto Y., Aoki T., Muguruma M.

FOOD SCIENCE AND TECHNOLOGY RESEARCH, vol.15, no.3, pp.283-292, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 3
  • Publication Date: 2009
  • Doi Number: 10.3136/fstr.15.283
  • Page Numbers: pp.283-292


This study focused on the effects of a humidity-stabilizing sheet (HSS) containing different levels of glycerol (humectant) and a drip-absorbing sheet (DAS) on quality parameters of frozen/thawed bigeye tuna meat stored in sealed containers at 4 degrees C for 3 days. As the glycerol concentration increased, the humidity around samples and increases in volatile basic nitrogen (VBN) were suppressed, while the weight loss percentage and total ATP-related compounds (t-ARCs) were increased. Tuna portions wrapped with HSS and DAS and then unwrapped showed no difference in Hunter color values L*, a*, and b* or K values. Wrapping tuna samples with any kind of sheet seemed to effectively maintain the initial values of thiobarbituric acid reactive substances (TBARS) and metmyoglobin percentage (Met-Mb%). Based on the analysis of these parameters, we conclude that HSS is a good packaging material that can be employed in the preservation of frozen/thawed, chilled tuna meat.