Enzyme-Induced Formation of β-Lactoglobulin Fibrils by AspN Endoproteinase

被引:36
作者
Akkermans, Cynthia [1 ,2 ]
Venema, Paul [2 ]
van der Goot, Atze Jan [1 ]
Boom, Remko M. [1 ]
van der Linden, Erik [2 ]
机构
[1] Wageningen Univ, Food Engn Grp, NL-6700 EV Wageningen, Netherlands
[2] Wageningen Univ, Food Phys Grp, NL-6700 EV Wageningen, Netherlands
关键词
beta-Lactoglobulin; Fibrils; Aggregation; Enzymatic hydrolysis; Peptide;
D O I
10.1007/s11483-008-9094-3
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
This paper describes a low temperature, enzymatic route to induce fibrillar structures in a protein solution. The route comprises two steps. First, beta-lactoglobulin was hydrolyzed into peptides at pH 8 and 37 degrees C with the enzyme AspN endoproteinase, which resulted in the formation of random aggregates. After hydrolysis, the pH was lowered to 2. As a result, long fibrillar aggregates were formed which was observed using transmission electron microscopy and Thioflavin T fluorescence measurements.
引用
收藏
页码:390 / 394
页数:5
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