美国布鲁克海文仪器公司上海代表处
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aFood Science and Technology Programme, c/o Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
bNational University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China
cAnderson Junior College, 4500 Ang Mo Kio Ave 6, Singapore 569843, Singapore
摘要9/span>Fish gelatin (FG) andκ-carrageenan (KC) were mixed to simulate the physicochemical properties of porcine gelatin (PG). The effects of the mixing ratio between FG and KC on the interaction, structure, and rheological properties of FG were investigated. The maximum associative interaction occurred at the critical mixing ratio of KC:FG (w/w) of 4:96, where the median particle size (D50) of the FG-KC coacervates was 1168 ±?/span>175?span style="font-family:times new roman;">nm, and the zeta potential was∑/span>3.8 ±?/span>0.8?span style="font-family:times new roman;">mV. Interestingly, the rheological properties of the mixed gel (KC:FG 4:96) matched those of PG, including the melting temperature (Tm), gelling temperature (Tg), dynamic consistency factor (Kf), instantaneous compliance (J0). The structure-physicochemical properties relationship was proposed as a schematic model. The associative interaction of FG-KC was critical for FG's modification and could be applied to improve FG's rheological properties towards those of PG.
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