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| Silvestre,Marialice Pinto Coelho; Silva,Mauro Ramalho; Silva,Viviane Dias Medeiros; Souza,Mariana Wanessa Santana de; Lopes Junior,Carlos de Oliveira; Afonso,Wendel de Oliveira. |
| The aim of this study was to prepare enzymatic hydrolysates from whey protein concentrate with a nutritionally adequate peptide profile and the ability to inhibit angiotensin-converting enzyme (ACE) activity. The effects of the type of enzyme used (pancreatin or papain), the enzyme:substrate ratio (E:S ratio=0.5:100, 1:100, 2:100 and 3:100) and the use of ultrafiltration (UF) were investigated. The fractionation of peptides was performed by size-exclusion-HPLC, and the quantification of the components of the chromatographic fractions was carried out by a rapid Corrected Fraction Area method. The ACE inhibitory activity (ACE-IA) was determined by Reverse Phase-HPLC. All parameters tested affected both the peptide profile and the ACE-IA. The best peptide... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Whey proteins; Protein hydrolysates; Peptide profile; Inhibitory activity; Angiotensin-converting enzyme. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000400019 |
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| ROCHA,Juliana de Cássia Gomes; VIANA,Kéllen Wanessa Coutinho; MENDONÇA,Adriana Corrêa; NEVES,Nathália de Andrade; CARVALHO,Antônio Fernandes de; MINIM,Valéria Paula Rodrigues; BARROS,Frederico Augusto Ribeiro de; STRINGHETA,Paulo César. |
| Abstract The objective of this study was to develop, characterize and evaluate the stability of whey protein beverages containing anthocyanins from jabuticaba skins. Beverage formulations containing 0.5% (F1), 2.0% (F2), 4.0% (F3) and 6.0% (F4) of whey proteins and 2.0 mL of the concentrated phenolic extract from jabuticaba skins were developed. Physicochemical parameters (pH, acidity, total soluble solids, protein content, viscosity, color), antioxidant capacity, total anthocyanins and total phenols of the beverages were determined. In addition, a sensory acceptance test and a stability study were performed. The physicochemical analyses indicated that the protein concentration significantly (p < 0.05) affected the values of acidity, total soluble... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Whey proteins; Phenolic compounds; Antioxidants; Skins of jabuticaba; Plinia cauliflora. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000100112 |
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| Freitas,Denise Ribeiro de; Souza,Fernando Nogueira de; Oliveira,Jamil Silvano de; Ferreira,Diêgo dos Santos; Ladeira,Cristiane Viana Guimarães; Cerqueira,Mônica Maria Oliveira Pinho. |
| ABSTRACT: The aim of the present study was to explore the association between milk protein content and casein micelle size and to examine the effects of casein micelle size on enzymatic curd strength and dry matter curd yield using reduced laboratory-scale cheese production. In this research, 140 bulk tank milk samples were collected at dairy farms. The traits were analyzed using two linear models, including only fixed effects. Smaller micelles were associated with higher κ-casein and lower αs-casein contents. The casein micellar size (in the absence of the αs-casein and κ-casein effects) did not affect the enzymatic curd strength; however, smaller casein micelles combined with higher fat, lactose, casein and κ-casein contents exhibited a favorable effect... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caseins; Cheese; Whey proteins. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000300750 |
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