Change in translucency of squid mantle muscle upon storage
Change in the translucency of squid mantle muscle during itsstorage at 0°C was studied by monitoring L* valueand turbidity. Two indicators showed that squid mantle muscle lostits translucency and reached maximal turbidity within 24 hof storage. Thickness of mantle muscle also increased by 15% in12 h, earlier than the loss of translucency. ATP contentdecreased with storage time and was completely lost in almost 24 h,a similar period to translucency loss, but later than rigor contraction.Development of black color on skin surface by chromatophores wasfully achieved in 24 h. It was thus concluded that ATPcontent was well correlated with a loss of translucency or increasein the turbidity of mantle muscle and development of dark coloron the surface skin of mantle.
Document Type: Research Article
Affiliations: 1: Hokkaido Industrial TechnologyCenter, Hakodate, Hokkaido 041-0801 and 2: Laboratoryof Marine Food Science, Graduate School of Fisheries, Hokkaido University,Hakodate, Hokkaido 041-8611, Japan
Publication date: 2003-04-01