Studies on Bitter Peptides from Casein Hydrolyzate. XIV. Bitter Taste of Synthetic Analogs of Octapeptide, Arg–Gly–Pro–Phe–Pro–Ile–Ile–Val, Corresponding to the C-Terminal Portion of<i>β</i>-Casein
作者:Masaru Nakatani、Takashi Nakata、Katsushige Kouge、Hideo Okai
DOI:10.1246/bcsj.67.438
日期:1994.2
In order to elucidate the relationship between the chemical structure and bitter taste of the C-terminal portion of β-casein, some analogues, in which the phenylalanine residue was substituted by d-phenylalanine, lysine, glycine, glutamic acid or l-pyrenylalanine, were synthesized. Sensory analyses and CD spectra showed that the location of a hydrophobic amino acid with the l-configuration between the two proline residues should be important for this series of peptides to produce a strong bitterness.
为了阐明β-酪蛋白C端部分的化学结构与其苦味之间的关系,合成了一些类似物,其中酪氨酸残基被d-酪氨酸、赖氨酸、甘氨酸、谷氨酸或l-吡咯啉酪氨酸替代。感觉分析和圆二色谱(CD谱)显示,在两个脯氨酸残基之间的位置上,具有l-构型的疏水氨基酸对这一系列肽产生强苦味的重要性。