期刊
FOOD HYDROCOLLOIDS
卷 137, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2022.108418
关键词
Sarcoplasmic protein; Myofibrillar protein; Pea protein isolate; Emulsion; Interfacial properties
This study attempted to enhance the emulsifying activity of sarcoplasmic protein (SP) and understand the inter-relationship of SP and myofibrillar protein (MP) in mixed soluble muscle protein (SMP) extracted under simulated salt-reducing meat processing conditions. Results showed that structurally modified pea protein can improve the emulsifying activity and stability of low-salt meat proteins.
Sodium reduction in meat products has been a strategic goal for decades, but the progress has been slow due to compromised functionality of myofibrillar protein (MP). The present study attempted to accentuate emulsifying activity of sarcoplasmic protein (SP) and understand the inter-relationship of SP and MP in mixed soluble muscle protein (SMP) extracted under simulated salt-reducing meat processing conditions. The SMP extracts with various in situ SP:MP ratios and structurally modified (ultrasound and pH12-shifting) pea protein supplements were subjected to interfacial analysis and emulsion preparation at salt concentrations of 0.1-0.6 M NaCl. In low -salt conditions (0.1-0.3 M NaCl), the SP-rich SMP exhibited strong initial interfacial adsorptivity compared with high-salt conditions (0.4-0.6 M NaCl), and the inclusion of 2% pea protein further improved (P < 0.05) the surface hydrophobicity (170-260%), interfacial pressure (2-11%), emulsifying activity (11-65%), and emulsion stability (7-35%). SP was responsible for emulsifying properties of SMP at < 0.4 M NaCl and had no appreciable effect on emulsifying activity of MP-dominated meat extract under higher-salt conditions. Results from this simulated SP/MP extract study indicate the feasibility to produce low-salt meat emulsions when aided by structurally modified pea protein.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据