The largest database of trusted experimental protocols

4 protocols using pancreatic trypsin novo 6.0s

1

Soybean Protein Hydrolysis Using Diverse Enzymes

Check if the same lab product or an alternative is used in the 5 most similar protocols
Soybeans (Glycine max (L.) merr.) were purchased from Naturkost Ernst Weber (Munich, Germany). Enzymes used in this study including Alcalase® 2.4 L FG (endoprotease from Bacillus licheniformis), Flavourzyme® 1000 L (endoprotease and exopeptidase from Aspergillus oryzae), Protamex® (endopeptidase from Bacillus licheniformis and Bacillus amyloliquefaciens), Neutrase® 0.8 L (endoprotease from Bacillus amyloliquefaciens), and Pancreatic Trypsin Novo® 6.0 S (endopeptidase from Porcine pancreatic glands) were kindly provided by Novozymes A/S (Bagsvaerd, Denmark). Papain (cysteine‐protease from papaya latex) (E.C. 3.4.22.2, Sigma no P4762) and Pepsin (endoprotease from Porcine gastric mucosa) (E.C. 3.4.23.1, Sigma no P6887) were purchased from Sigma‐Aldrich Inc. (St. Louis, MO) and Corolase® 7089 (endopeptidase from Bacillus subtilis), Corolase® 2TS (endopeptidase from Bacillus stearothermophilus) as well as Protease N‐01 (endoprotease from Bacillus subtilis) were kindly provided by AB Enzymes GmbH (Darmstadt, Germany) and ASA Spezialenzyme GmbH (Wolfenbüttel, Germany), respectively.
All chemicals used in this study were of analytical grade and obtained from Th. Geyer GmbH & Co. KG (Renningen, Germany).
+ Open protocol
+ Expand
2

Enzymatic Characterization of Proteases

Check if the same lab product or an alternative is used in the 5 most similar protocols
Angiotensin-converting enzyme I (ACE, EC 3.4.15.1), acetonitrile of HPLC grade and trifluoroacetic acid (TFA) were from Sigma Chemical Co. (St. Louis, MO, USA); Prolyl endopeptidase (PEP, EC 3.4.21.26) from Flavobacterium was purchased from Seikagaku Corp. (Tokyo, Japan). The chromogenic substrates (Z-Gly-Pro-7-amido-4-methylcoumarin) and Abz-GLY-PHe(NO2)-Pro were from Bachem Feinchemikalien (Bubendorf, Switzerland). Sigma Chemical Co. (St. Louis, MO, USA) provided porcine kidney Dipeptidyl Peptidase IV (DPP-IV, EC 3.4.14.5) and its chromogenic substrate (H-Gly-Pro-AMC-HBr), hippuryl-His-Leu, angiotensin II, vitamin B12 and aprotinin. Novozymes (Bagsværd, Denmark) kindly provided commercial proteases (Alcalase® 2.4 L, Esperase® 8.0 L, and Pancreatic Trypsin Novo 6.0S). All other analytical grade chemicals were purchased from Panreac Chemical Co. (Barcelona, Spain).
+ Open protocol
+ Expand
3

Enzymatic Hydrolysis of Angiotensin-Converting Enzyme

Check if the same lab product or an alternative is used in the 5 most similar protocols
Alcalase® 2.4 L (from Bacillus licheniformis), Pancreatic Trypsin Novo 6.0S, Protease type XIV, also known as Pronase E (from Streptomyces griseus) and Esperase® 8.0 L (from Bacillus spp.) were obtained from Novozymes (Bagsværd, Denmark). Angiotensin-Converting Enzyme I (ACE, EC 3.4.15.1), aprotinin, vitamin B12, angiotensin II, hippuryl histidyl leucine (HHL) and glycine were obtained from Sigma Chemical Co., (St. Louis, MO, USA). Abz-GLY-PHe(NO2)-Pro was obtained from Bachem Feinchemikalien (Bubendorf, Switzerland). All other chemicals and reagents used were of analytical grade and were purchased from Panreac Chemical Corp. (Barcelona, Spain).
+ Open protocol
+ Expand
4

Preparation of Caseinates from Goat and Cow Milk

Check if the same lab product or an alternative is used in the 5 most similar protocols
Goat and cow caseinate were prepared by isoelectric precipitation of reconstituted goat (predominantly Saanen) or cow milk powder obtained from Dairy Goat Co-operative (Hamilton, New Zealand), and Fonterra Co-operative (purchased from Milligans Food Group Ltd., Oamaru, New Zealand), respectively. Briefly, the skim milk powders were hydrated to 10% (wt/wt) and acidified to pH 4.6 for cow and 4.2 for goat milk at 15°C. The solutions were warmed to 30°C and the precipitate collected by centrifugation. The precipitates were caseinated by addition of sodium hydroxide to pH 6.7 and freeze-dried. We obtained ammonium bicarbonate, ammonium molybdate, disodium tetraborate, and sodium sulfite from BDH Chemicals (Poole, UK); hydrochloric acid, sodium hydroxide, 2-propanol, acetonitrile, trifluoroacetic acid, and ferrous sulfate from Fisher Scientific (Leicestershire, UK); hydrogen peroxide, disodium EDTA, and sodium chloride from LabServ (Biolab, Australia); o-phthaldialdehyde (OPA), dithiothreitol, serine, ferrozine, and neocuprione from Sigma (St. Louis, MO); Eriochromeback T indicator from Riedel-de Haën (Seelze, Germany); and trypsin (Pancreatic Trypsin Novo 6.0S) from Novozymes (Bagsvaerd, Denmark). All water was MilliQ grade, and all other chemicals were analytical grade. The spectrophotometer used throughout was Pharmica UV/visible Ultrospec II (LKB, Biochem, Cambridge, UK).
+ Open protocol
+ Expand

About PubCompare

Our mission is to provide scientists with the largest repository of trustworthy protocols and intelligent analytical tools, thereby offering them extensive information to design robust protocols aimed at minimizing the risk of failures.

We believe that the most crucial aspect is to grant scientists access to a wide range of reliable sources and new useful tools that surpass human capabilities.

However, we trust in allowing scientists to determine how to construct their own protocols based on this information, as they are the experts in their field.

Ready to get started?

Sign up for free.
Registration takes 20 seconds.
Available from any computer
No download required

Sign up now

Revolutionizing how scientists
search and build protocols!