Thermal Behavior, Microstructure and Protein Quality of Squid Fillets Dried
Food Control 36 (2014) 102e110 Contents lists available at ScienceDirect Food Control journal homepage: www.elsevier.com/locate/foodcont Thermal behavior, microstructure and protein quality of squid fillets dried by far-infrared assisted heat pump drying Yun Deng a, Yuegang Wang a, Jin Yue a,*, Zhenmin Liu b, Yuanrong Zheng b, Bingjun Qian b, Yu Zhong a, Yanyun Zhao a,c,* a SJTU-Bor Luh Food Safety Center, Department of Food Science and Technology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China b Dairy Research Institute, Bright Dairy & Food Co., Ltd., Bldg 2, No.1518, West Jiangchang Road, Shanghai 200436, PR China c Department of Food Science and Technology, 100 Wiegand Hall, Oregon State University, Corvallis, OR, USA article info abstract Article history: The effects of far-infrared assisted heat pump drying on the thermal behavior, microstructure and protein Received 6 May 2013 quality of squid fillets were studied. Heat pump drying (HPD) alone or in combination with far-infrared À Received in revised form radiation (FIR) at the power of 100, 500 and 800 W, 40 C and 2 m s 1 air velocity were compared. 3 August 2013 Nitrogen fractions, proteases activities, amino acid profile, microstructure, SDS-PAGE and protein quality Accepted 5 August 2013 of fresh and dried squid samples were examined. Results showed that glutamic acid, aspartic acid, lysine and isoleucine are the dominant amino acids in all samples. The total contents of essential amino acid Keywords: and non-essential amino acid, essential amino acid index, estimated protein efficiency ratio and bio- Heat pump drying fi > Far-infrared radiation logical value were not signi cantly different among all squid samples (P 0.05).
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