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| LUKIN,Aleksandr. |
| Abstract Protepsin belongs to the class of acid proteinases, containing carboxyl groups in the active center. The preparation cleaves peptide bonds formed by aromatic amino acids (tyrosine, phenylalanine), and does not hydrolize esters and amides. Along with the proteolytic complex, Protepsin contains collagenase, lipase, and other digestive enzymes. The preparation is obtained according to the original technology through maceration of animal endocrine raw materials, followed by purification, concentration, isolation and freeze dehydration of the enzyme complex. The results of the laboratory studies of the proteolytic activity of enzyme preparations show that Protepsin, the preparation of animal origin with a proteolytic activity of 100 units/g, has the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enzyme preparations; Protepsin; Cattle by-products; Proteolytic activity; Protein hydrolysate. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005028106 |
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| Polanco-Lugo,Erik; Dávila-Ortiz,Gloria; Betancur-Ancona,David Abram; Chel-Guerrero,Luis Antonio. |
| 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 hydrolysate (EH), each with different degrees of hydrolysis (DH). The effects of hydrolysis were evaluated in vitro in both hydrolysates based on structural, functional and bioactive properties. Structural properties analyzed by electrophoretic profile indicated that LH showed residual structures very similar to protein isolate (PI), although composed of mixtures of polypeptides that increased hydrophobic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus lunatus; Protein hydrolysate; Functional properties; Bioactive properties; ECA; Antioxidant activity. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612014000300002 |
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| Cahu, Chantal; Ronnestad, I; Grangier, V; Zambonino, Jose-luis. |
| In order to assess the influence of dietary protein on digestive enzyme expression and cholecystokinin (CCK) content in sea bass larvae, four groups of larvae were fed experimental diets from mouth opening until day 42: three isonitrogenous diets with increasing protein hydrolysate levels (0%, 14% and 46% of crude matter) and one diet incorporating starch. The groups fed high starch or high protein hydrolysate level exhibited the lowest growth. The final weight in these groups was 9.5 and 5.6 mg, respectively, whereas it reached approximately 20.0 mg in the groups fed 0% or 14% protein hydrolysate level. The highest levels of trypsin secretion were observed in larvae fed the lowest protein hydrolysate level. Paradoxically, the groups fed diet containing... |
| Tipo: Text |
Palavras-chave: Starch; Sea bass larvae; Protein hydrolysate; Pancreatic enzyme secretion; Cholecystokinin. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-442.pdf |
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| Gisbert, Enric; Skalli, Ali; Fernandez, Ignacio; Kotzamanis, Yannis; Zambonino, Jose Luiz; Fabregat, Rogelio. |
| In this study, we have evaluated the incorporation of two types of protein hydrolysates at 9 and 12% levels of inclusion, one from yeast (Saccharomyces cerevisiae, YPH) and another one from pig blood (PBPH), in microdiets for gilthead sea bream (Sparus aurora) larvae, and compared these results to a microdiet containing fish protein hydrolysate and another group only fed with enriched live prey (rotifers and Artemia). The trial consisted in substituting up to 75% (wt/wt) the enriched Artemia with the experimental microdiets from 15 to 40 days post-hatch, whereas larvae were exclusively fed on microdiets from 40 to 55 dph. Protein hydrolysates used in the present study were obtained from different raw materials (yeast, pig blood and fish protein... |
| Tipo: Text |
Palavras-chave: Digestive enzymes; Larvae; Gilthead sea bream; Protein hydrolysate; Skeletal deformities; Sparus aurata. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00085/19584/17467.pdf |
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