Antioxidant capacity of pitcher (Nepenthes) extract on oxidative rancidity of sun-dried squid

Abstract

Consumers demand new biologically natural-active ingredients with a great capacity to promote a healthier advantage and free from toxicity. Pitcher (Nepenthes) is one of the naturally carnivorous climber herbs. Extract from Nepenthes plant contains numerous beneficial bioactivity characteristics. This research compared the impact of 0.05% pitcher extract demonstrated with 10 ppm butylated hydroxyanisole on the accumulation of acid value, peroxide value, carbonyl value and thiobarbituric acid during 12 months of storage. Results showed that there was no significant difference between 0.05% pitcher extract and 10 ppm butylated hydroxyanisole in respect of acid value, peroxide value, carbonyl value and thiobarbituric acid during preservation of the dried squid. Pitcher extract would be a promising alternative to replace synthetic antioxidants to overcome oxidative rancidity in the dried seafood.