Optimization of adhesive strength to plywood of gelatin processed from dorsal skin of yellowfin tuna (Thunnus albacares)

Abstract

Gelatin from yellowfin tuna (Thunnus albacares) dorsal skin was optimized for adhesive strength to plywood using surface response methodology of a central composite design with a dependent variable of adhesive strength (Y, kg f /cm 2 ) and two independent variables of gelatin concentration (X 1 , %) and hardening time (X 2 , hrs). From the above design, a maximum adhesive strength of 49.84 kg f /cm 2 was obtained under the optimal treatment condition of 15.85% gelatin concentration and 25.68 hr hardening time. The adhesive strength under optimum conditions was 50.93 kg f /cm 2 . The adhesive strength of the tuna gelatin was shown to be superior to that of bovine and porcine gelatins which had adhesive strengths of 34.75 and 34.9 kg f /cm 2 , respectively.

Cell Delivery Using an Injectable and Adhesive Transglutaminase–Gelatin Gel

“…Gelatin by itself has adhesive properties and has been considered a nontoxic alternative for solvent-based glue. 42 But with crosslinked gelatin, adhesiveness can be increased depending on the substrate bonded to the gelatin. Chen et al 43 demonstrated the potential of gelatin mixed with TGase as an adhesive to retinal tissue.…”

Dual Cross-Linked Gelatin-Based Adhesive for Leather with Low Curing Temperature and Improved Bonding Strength

“…(e) TG and (f) DTG of gelatin, GT, GD, GP, and GDP. (g) The tensile strength of bonded wood using gelatin, GDP, soy-based, cellulose-based, chitosan-based, and gelatin-based adhesives. (h) Degradation of the GDP film in the soil.…”

“…The GDP adhesive exhibited dry bonding strength and wet bonding strength of 5.52 MPa (improved by 57.72% compared to gelatin) and 4.71 MPa (improved by 1780% compared to gelatin), respectively, when bonded to wood. The bonding strength of the GDP adhesive to wood is also higher than the reported adhesives based on soy, 45 cellulose, 46 chitosan, 47 and gelatin 48 (Figure 7g).…”

Physical Properties of Biofilm Manufactured from Gelatin of Yellowfin Tuna Thunnus albacares Skin Treated with Acetic Acid

“…L = 93.73, a = -0.12 b = 0.11 (Choi and Regenstein, 2000;Zhou et al, 2006;Yang et al, 2007). , (Cho et al, 2005;Yoon et al, 2008). , (Montero et al, 1990;Bateman et al, 1996;Gómez mez-Guillén et al, 2002).…”