Protein Hydrolysates
Mostrando 13-24 de 101 artigos, teses e dissertações.
-
13. Production of hydrolysate from processed Nile tilapia (Oreochromis niloticus) residues and assessment of its antioxidant activity
Abstract The objective of this work was to produce protein hydrolysates from by-products of the Nile tilapia fileting process, and to assess the effects of different hydrolysis times on the antioxidant activity of the hydrolysed animal-based protein, in free form and incorporated into a food matrix. Gutted tilapia heads and carcasses were hydrolysed by Alcal
Food Sci. Technol. Publicado em: 29/08/2016
-
14. Influence of the degree of hydrolysis and type of enzyme on antioxidant activity of okara protein hydrolysates
Abstract The objective of this work was to evaluate the antioxidant activity of protein hydrolysates obtained by the enzymatic hydrolysis of okara using an endopeptidase (Alcalase) and exopeptidase (Flavourzyme). The reaction was monitored by the pH-stat procedure in which five aliquots were collected during the hydrolysis by each enzyme, corresponding to di
Food Sci. Technol. Publicado em: 20/05/2016
-
15. Antioxidant activity of black bean (Phaseolus vulgaris L.) protein hydrolysates
Abstract The objective of this work was to study the effect of enzymatic hydrolysis of black bean protein concentrate using different enzymes. Bean proteins were extracted and hydrolyzed over a period of 120 min using the enzymes pepsin or alcalase. The protein hydrolysates’ molecular weight was assayed by electrophoresis and the antioxidant activity was e
Food Sci. Technol. Publicado em: 29/04/2016
-
16. Solid-state fermentation of Acanthogobius hastaprocessing by-products for the production of antioxidant protein hydrolysates with Aspergillus oryzae
Functional properties and antioxidative activity of a protein hydrolysate prepared from Acanthogobius hasta processing by-product protein during solid-state fermentation with Aspergillus oryzae were investigated. Overall, protease activity increased with the degree of hydrolysis (DH) decreased during solid-state fermentation. All the protein hydrolysate had
Braz. arch. biol. technol.. Publicado em: 06/03/2015
-
17. ACE-I inhibitory properties of hydrolysates from germinated and ungerminated Phaseolus lunatus proteins
Phaseolus lunatus protein concentrates and the proteases Alcalase(R) and Pepsin-Pancreatin were used for the production of protein hydrolysates that inhibit angiotensin-I converting enzyme (ACE). Protein concentrate obtained from germinated and ungerminated seeds flour was hydrolyzed with Alcalase(R) at enzyme/substrate ratio (E/S) 1/10 and during 0.5 and 2.
Food Sci. Technol. Publicado em: 2015-03
-
18. Effects of sequential enzymatic hydrolysis on structural, bioactive and functional properties of Phaseolus lunatus protein isolate
Significant initiatives exist within the global food market to search for new, alternative protein sources with better technological, functional, and nutritional properties. Lima bean (Phaseolus lunatus L.) protein isolate was hydrolyzed using a sequential pepsin-pancreatin enzymatic system. Hydrolysis was performed to produce limited (LH) and extensive hydr
Food Sci. Technol. Publicado em: 09/09/2014
-
19. Evaluation of jumbo squid (Dosidicus gigas) byproduct hydrolysates obtained by acid-enzymatic hydrolysis and by autohydrolysis in practical diets for Pacific white shrimp (Litopenaeus vannamei)
The marine bioprocessing industry offers great potential to utilize byproducts for fish meal replacement in aquafeeds. Jumbo squid is an important fishery commodity in Mexico, but only the mantle is marketed. Head, fins, guts and tentacles are discarded in spite of being protein-rich byproducts. This study evaluated the use of two jumbo squid byproduct hydro
Food Sci. Technol. Publicado em: 2014-09
-
20. Replacement of mechanically deboned chicken meat with its protein hydrolysate in mortadella-type sausages
Mortadella-type sausage manufactured using mechanically deboned chicken meat were reformulated replacing MDCM with increasing amounts of MDCM protein hydrolysates (10%, 20%, and 30%), and their physicochemical, microbiological, and sensorial characteristics were evaluated for 60 days of storage at 4 °C. The higher substitutions resulted in sausages more sus
Food Sci. Technol. Publicado em: 2014-09
-
21. Action of a pancreatin and an Aspergillus oryzae protease on whey proteins: correlation among the methods of analysis of the enzymatic hydrolysates
The objectives of this study were to hydrolyze whey proteins using a pancreatin and an Aspergillus oryzae protease; to evaluate the degree of hydrolysis (DH) and the peptide profile; and to establish the correlations among the analytical methods. Ten hydrolysates were prepared at different reaction times and the highest DH was obtained by the protein content
Braz. arch. biol. technol.. Publicado em: 2013-12
-
22. Biotechnological richness of the northeastern semi-arid region: antioxidant activity of casein hydrolysates from Moxotó goat milk (Capra hircus Linnaeus, 1758) obtained by papain action
This study aimed to identify antioxidant peptides from caprine casein hydrolysates by papain application using MALDI-TOF mass spectrometer, and a 2² full factorial design, with 4 axial points, in order to evaluate kinetic parameters (time and pH) effects on the degree of hydrolysis as well as the antioxidant activity of Moxotó goat milk casein peptides. De
Food Sci. Technol. Publicado em: 13/09/2013
-
23. Avaliação da temperatura de indução e de fontes de nitrogênio na produção de proteína de superfície de Streptococcus pneumoniae em Escherichia coli recombinante
Doenças causadas por Streptococcus pneumoniae constituem um dos principais problemas de saúde pública mundial. A proteína A de superfície de pneumococo (PspA) é candidata em potencial a ser carreadora em vacina conjugada contra essa bactéria. Considerando as altas perdas inerentes às etapas de purificação e conjugação da proteína, é fundamental
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2012
-
24. Atividade antioxidante de produtos proteicos de linhaça (Linum usitatissimum L.) / Antioxidante activity of flaxseed protein products (Linum usitatissimum L.)
Existem evidências numerosas sobre o papel dos radicais livres em uma série de condições patológicas, incluindo envelhecimento, câncer, esclerose múltipla, doenças cardiovasculares. Hidrolisados protéicos de diferentes fontes têm sido estudados por seu potencial antioxidante. A atuação antioxidante da proteína, na maioria das vezes, encontra-se
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/04/2012