TY - JOUR
T1 - Simultaneous determination of angiotensin I-converting enzyme inhibitory peptides in tryptic casein hydrolysate by high-performance liquid chromatography combined with a replicate heart-cut column-switching technique
AU - Zhu, Xiao Lin
AU - Matsui, Toshiro
AU - Watanabe, Keisuke
AU - Shiraishi, Koso
AU - Ueki, Tatsuro
AU - Matsumoto, Kiyoshi
PY - 2007/10/17
Y1 - 2007/10/17
N2 - A replicate heart-cut column-switching HPLC method combined with two switching valves was newly developed for the simultaneous determination of three antihypertensive peptides (Ala-Phe, Tyr-Pro, and Trp-Tyr) in tryptic casein hydrolysate in one run-in assay. After a first separation on an octadecyl silane (ODS) column, heart-cuts of each peptide were individually separated on a subsequent analytical ODS column: 26% acetonitrile for Ala-Phe and Tyr-Pro (32% for Trp-Tyr) in 0.1% trifluoroacetic acid containing 10 mM sodium 1-octanesulfonate at 0.8 mL/min. Ala-Phe, Tyr-Pro, and Trp-Tyr in casein hydrolysate were determined within 70 min to be 0.377 ± 0.037 mg/g, 2.50 ± 0.26 mg/g, and 0.096 ± 0.008 mg/g, respectively.
AB - A replicate heart-cut column-switching HPLC method combined with two switching valves was newly developed for the simultaneous determination of three antihypertensive peptides (Ala-Phe, Tyr-Pro, and Trp-Tyr) in tryptic casein hydrolysate in one run-in assay. After a first separation on an octadecyl silane (ODS) column, heart-cuts of each peptide were individually separated on a subsequent analytical ODS column: 26% acetonitrile for Ala-Phe and Tyr-Pro (32% for Trp-Tyr) in 0.1% trifluoroacetic acid containing 10 mM sodium 1-octanesulfonate at 0.8 mL/min. Ala-Phe, Tyr-Pro, and Trp-Tyr in casein hydrolysate were determined within 70 min to be 0.377 ± 0.037 mg/g, 2.50 ± 0.26 mg/g, and 0.096 ± 0.008 mg/g, respectively.
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U2 - 10.1021/jf0720584
DO - 10.1021/jf0720584
M3 - Article
C2 - 17927145
AN - SCOPUS:35549004046
SN - 0021-8561
VL - 55
SP - 8367
EP - 8371
JO - Journal of Agricultural and Food Chemistry
JF - Journal of Agricultural and Food Chemistry
IS - 21
ER -