Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones
The value-added use of peach stone for production of a high protein product was investigated. Different parameters were optimized in order to obtain the highest protein yield in the extraction of peach seed proteins. Optimal conditions enabled the extraction of 43 g of protein per 100 g of dried and...
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doaj-71a1dd2409424ded9916e3d65ad61d062021-04-29T04:44:57ZengElsevierJournal of Functional Foods1756-46462015-10-0118137146Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stonesRomy Vásquez-Villanueva0M. Luisa Marina1M. Concepción García2Department of Analytical Chemistry, University of Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871 Alcalá de Henares, Madrid, SpainDepartment of Analytical Chemistry, University of Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871 Alcalá de Henares, Madrid, SpainCorresponding author. Department of Analytical Chemistry, University of Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871 Alcalá de Henares (Madrid), Spain. Tel.: +34 918854915; fax: +34 918854971.; Department of Analytical Chemistry, University of Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871 Alcalá de Henares, Madrid, SpainThe value-added use of peach stone for production of a high protein product was investigated. Different parameters were optimized in order to obtain the highest protein yield in the extraction of peach seed proteins. Optimal conditions enabled the extraction of 43 g of protein per 100 g of dried and defatted milled seeds. Different enzymes and parameters were also tried in order to obtain the highest hydrolysis degree in the digestion of this peach seed protein isolate. Thermolysin was the enzyme that yielded the extract with the highest ACE-inhibition capability. After ultrafiltration through different molecular weight cut-off filters, potential antihypertensive peptides remained in the fraction below 3 kDa. Three different peptides (LYSPH, LYTPH, and HLLP) resisting simulated gastrointestinal digestion and ACE activity and demonstrating antihypertensive in vitro capacity were identified by HPLC-MS/MS. This is the first time that potential antihypertensive peptides have been isolated from peach stones.http://www.sciencedirect.com/science/article/pii/S1756464615003503PeachSeedPeptidesACE-inhibitorde novo sequencing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Romy Vásquez-Villanueva M. Luisa Marina M. Concepción García |
spellingShingle |
Romy Vásquez-Villanueva M. Luisa Marina M. Concepción García Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones Journal of Functional Foods Peach Seed Peptides ACE-inhibitor de novo sequencing |
author_facet |
Romy Vásquez-Villanueva M. Luisa Marina M. Concepción García |
author_sort |
Romy Vásquez-Villanueva |
title |
Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones |
title_short |
Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones |
title_full |
Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones |
title_fullStr |
Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones |
title_full_unstemmed |
Revalorization of a peach (Prunus persica (L.) Batsch) byproduct: Extraction and characterization of ACE-inhibitory peptides from peach stones |
title_sort |
revalorization of a peach (prunus persica (l.) batsch) byproduct: extraction and characterization of ace-inhibitory peptides from peach stones |
publisher |
Elsevier |
series |
Journal of Functional Foods |
issn |
1756-4646 |
publishDate |
2015-10-01 |
description |
The value-added use of peach stone for production of a high protein product was investigated. Different parameters were optimized in order to obtain the highest protein yield in the extraction of peach seed proteins. Optimal conditions enabled the extraction of 43 g of protein per 100 g of dried and defatted milled seeds. Different enzymes and parameters were also tried in order to obtain the highest hydrolysis degree in the digestion of this peach seed protein isolate. Thermolysin was the enzyme that yielded the extract with the highest ACE-inhibition capability. After ultrafiltration through different molecular weight cut-off filters, potential antihypertensive peptides remained in the fraction below 3 kDa. Three different peptides (LYSPH, LYTPH, and HLLP) resisting simulated gastrointestinal digestion and ACE activity and demonstrating antihypertensive in vitro capacity were identified by HPLC-MS/MS. This is the first time that potential antihypertensive peptides have been isolated from peach stones. |
topic |
Peach Seed Peptides ACE-inhibitor de novo sequencing |
url |
http://www.sciencedirect.com/science/article/pii/S1756464615003503 |
work_keys_str_mv |
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1721501723870101504 |