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Effect of tilapia scraps enzymatic hydrolysates and its zinc chelating salts on oxidation inhibition of oils and fats
  
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KeyWord:tilapia scrap  enzymatic hydrolysate  zinc chelating salt  oil and fat  oxidation inhibition
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ZHAO Yang  
YANG Ping  
LI Tonggang，etc  
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Abstract:
      The effect of tilapia scraps enzymatic hydrolysates (EH10K) and its zinc chelating salts (CH-0) , ethanol and dialysis purification components of the zinc chelating salts (CH-Ⅰand CH-Ⅱ)on oxidation inhibition of oils and fats were investigated. The results demonstrated that EH10K, CH-0, CH-Ⅰand CH-Ⅱshowed good oxidation inhibitory effect in linoleic acid system, and CH-0, CH-Ⅰand CH-Ⅱwith low mass concentration had better oxidation inhibitory effect than EH10K; EH10K , CH-0, CH-Ⅰ and CH-Ⅱ showed good oxidation inhibitory effect on peanut oil and the effects were similar to that of butylated hydroxytoluene (BHT); meanwhile, EH10K, CH-0, CH-Ⅰ and CH-Ⅱ also showed good oxidation inhibitory effect on lard and the oxidation inhibitory effects of EH10K and CH-Ⅰwere close to that of BHT.
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