A hemp seed protein isolate, prepared from defatted hemp seed meals by alkaline solubilization/acid precipitation, was subjected to extensive chemical hydrolysis under acid conditions (6 M HCl). The resulting hydrolysate was fractionated by semipreparative RP-HPLC, and the purified fractions were tested as inhibitors of angiotensin converting enzyme (ACE). Mono- and bidimensional NMR experiments and LC-MS analyses led to the identification of four potentially bioactive peptides, i.e. GVLY, IEE, LGV, and RVR. They were prepared by solid-phase synthesis, and tested for ACE-inhibitory activity. The IC50 values were GVLY 16 ± 1.5 μM, LGV 145 ± 13 μM, and RVR 526 ± 33 μM, confirming that hemp seed may be a valuable source of hypotensive peptides.

New ACE-Inhibitory Peptides from Hemp Seed (Cannabis sativa L.) Proteins / O. Lara, G. Boschin, T. Recca, C. Morelli, R. Laura, P. Francescato, A. Arnoldi, G. Speranza. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 65:48(2017 Dec 06), pp. 10482-10488. [10.1021/acs.jafc.7b04522]

New ACE-Inhibitory Peptides from Hemp Seed (Cannabis sativa L.) Proteins

G. Boschin
Secondo
;
T. Recca;C. Morelli;P. Francescato;A. Arnoldi
Penultimo
;
G. Speranza
Ultimo
2017

Abstract

A hemp seed protein isolate, prepared from defatted hemp seed meals by alkaline solubilization/acid precipitation, was subjected to extensive chemical hydrolysis under acid conditions (6 M HCl). The resulting hydrolysate was fractionated by semipreparative RP-HPLC, and the purified fractions were tested as inhibitors of angiotensin converting enzyme (ACE). Mono- and bidimensional NMR experiments and LC-MS analyses led to the identification of four potentially bioactive peptides, i.e. GVLY, IEE, LGV, and RVR. They were prepared by solid-phase synthesis, and tested for ACE-inhibitory activity. The IC50 values were GVLY 16 ± 1.5 μM, LGV 145 ± 13 μM, and RVR 526 ± 33 μM, confirming that hemp seed may be a valuable source of hypotensive peptides.
ACE-inhibitors; Cannabis sativa L.; LC-MS/MS; bioactive peptides; hemp seed protein hydrolysate
Settore CHIM/06 - Chimica Organica
Settore CHIM/10 - Chimica degli Alimenti
6-dic-2017
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/540252
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