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8308476 
Journal Article 
Development of a fast and easy method to deodorize squid ink sac 
Lee, YC; Jheng, KY; Lin, CS; Huang, YR; Kung, HF; Tsai, YH 
2016 
Chinese Agricultural Chemical Society 
54 
1 
20-27 
Chinese 
Squid is important catches in Taiwan's offshore fishing. However, squid viscera and ink sac in the fish processing industry are discarded or as byproducts. Among them, squid ink sac (SIS) has fish stench and is difficult to utilize. In this study, the proximate compositions analysis and deodorizing treatments of SIS from neon flying squid (Ommastrephes bartramii) were investigated. The proximate compositions in SIS were moisture: 62.64%, crude protein: 28.54%, others (melanin and carbohydrate): 7.02%, ash: 1.81% and crude fat: 0.51%. The squid ink powder products (SIP) after deodorizing treatments including no treatment (control), ethanol or hexane treatments, different alkaline concentration treatments (High, Medium, Low), or combination of ethanol or hexane solvents and alkaline solution treatments were analyzed for deodorizing evaluation. The values of yield (%) and total volatile basic nitrogen (TVBN) of deodorizing SIPs decreased with increased alkaline concentration in only alkaline treatments or combination treatments, while the high alkaline treatments (1.0 N NaOH) has the lowest yield (11.28%) and TVBN (9.99 mg/100 g). In color measurement, L∗ values (14.23-19.13) of all treatments were higher than that of the control (12.94), whereas the control had the highest blackness (87.14). In above-mentioned results, the SIP after medium alkaline concentration treatment (0.5 N NaOH) had the highest score of sensory acceptance and its deodorizing result was more effective. 
Deodorizing method; Ink sac; Neo flying squid; Odor; Total volatile basic nitrogen (TVBN)