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文獻名：Characteristics and application of fish oil-in-water pickering emulsions structured with tea water-insoluble proteins/κ-carrageenan complexes

 

 

作者：Zhongyang Ren^ab; Zhanming Li^cd; Zhongzheng Chen^b; Yuanyuan Zhang^b; Xiaorong Lin^b; Wuyin Weng^a; Hongshun Yang^c; Bin Li^b

^a  College of Food and Biological Engineering, Jimei University, Xiamen, 361021, China

^b  College of Food Science, South China Agricultural University, 483 Wushan Street, Tianhe District, Guangzhou, 510642, China

^c  Department of Food Science & Technology, National University of Singapore, Science Drive 2, Singapore, 117542, Singapore

^d  School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang, 212004, China

 

 

摘要：Food-grade Pickering emulsions (PEs) stabilized by proteins and polysaccharides have enormous application potential for preparing oil gels. Tea water-insoluble protein (TWIP) and κ-carrageenan (KC) were applied to prepare fish oil-in-water PEs and fish oil gels to broaden the application of fish oils at different ratios of TWIPs and KC. The turbidity reduced, but particle size unchanged except that of TWIP/KC mixture at 80:20 and zeta potential was not altered with the addition of KC. The β-turn and random coil of TWIPs were transformed into β-sheet, α-helix and β-antiparallel due to the addition of KC. Besides, TWIPs clustered with the increase of KC content, especially at 80:20. The droplets of the PEs stabilized by TWIP/KC mixtures were relatively small and homogeneous and the viscoelastic behavior of them was improved compared with those stabilized by TWIPs only. Finally, fish oil gels prepared using PEs stabilized by TWIP/KC mixtures had solid-like behavior with a storage modulus of almost 200 kPa. Therefore, TWIP/KC mixtures can be applied to prepare stable PEs and fish oil gels utilizing PEs as templates. These findings will help explore new edible materials, construct novel colloid structures of underused edible materials and their eventual use in real food manufacture.

 

 

關鍵詞：Alternative protein; Dietary fiber; Emulsion delivery system; Gel; Rheological property