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Life Sciences Commons

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Food Science

California Polytechnic State University, San Luis Obispo

Series

2015

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Determining Antimicrobial Activity In Hydrolysates Obtained From Buttermilk Substrates By Trypsin And Pepsin, Deborah Kim, Karen Ramun, Stephanie Carpintero, Suyapa Padillo, Antonio-Jose Trujillo, Rafael Jimenez-Flores Aug 2015

Determining Antimicrobial Activity In Hydrolysates Obtained From Buttermilk Substrates By Trypsin And Pepsin, Deborah Kim, Karen Ramun, Stephanie Carpintero, Suyapa Padillo, Antonio-Jose Trujillo, Rafael Jimenez-Flores

STAR Program Research Presentations

Milk proteins within their structure and sequence, contain peptides that exhibit antithrombotic, immunomodulatory, antimicrobial, antihypertensive, and other bioactivities. These peptides are released as the enzymes cleave milk proteins at certain locations of the amino acid chains. In this research, four different substrates were hydrolyzed with the gastrointestinal enzymes, pepsin and trypsin. The substrates were buttermilk (BM) and whey buttermilk (WBM), which are waste products of butter and cheese production, and supercritical CO2 fluid (SFE) treated buttermilk (S-BM) and whey buttermilk (S-WBM). SFE acts as a solvent which removes triglycerides from the substrates and changes the overall composition of samples. …


Bacterial Expression Of Plant Pyruvate Kinase, Kristina Fuller Jan 2015

Bacterial Expression Of Plant Pyruvate Kinase, Kristina Fuller

STAR Program Research Presentations

Pyruvate kinases serve an important role in regulating glycolysis pathways. Different pyruvate kinase isozymes can dictate which of several different products will be formed during the final step of glycolysis. Being able to reliably copy active pyruvate kinases (PK) would allow study of the different isozymes, with the goal of eventually creating plants that are more nutritionally beneficial for humans. This study focused on improving the protocol for replicating each of two isolated PK isozymes from the model plant Arabidopsis thaliana. Previous attempts had resulted in the PK denaturing and consequently precipitating out of solution and so we manipulated the …