Abstract

SummaryEffect of chitooligosaccharide from squid pen prepared using lipase (COS‐L) at various concentrations (0–30 g kg−1) on gel properties of sardine surimi gel was investigated. Breaking force (BF) and deformation (DF) of gel were increased, when COS‐L level was increased up to 10 g kg−1 (P < 0.05). Water holding capacity and whiteness of gel were improved with the addition of COS‐L than those of control. Gel added with 10 g kg−1 COS‐L had denser network with higher likeness score for all sensory attributes, compared to control. When gel incorporated with 10 g kg−1 COS‐L was stored at 4 °C, BF, DF and whiteness were maintained during 10 days of storage. Textural properties of surimi gel added with COS‐L were higher than those of control throughout storage. Thus, incorporation of 10 g kg−1 COS‐L could improve gel properties of sardine surimi gel and retarded the deterioration of gel properties during refrigerated storage.

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