Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Food Science (3)
- Food Processing (2)
- Other Food Science (2)
- Amino Acids, Peptides, and Proteins (1)
- Animal Diseases (1)
-
- Chemicals and Drugs (1)
- Diseases (1)
- Food Chemistry (1)
- Genetics and Genomics (1)
- Meat Science (1)
- Medicinal and Pharmaceutical Chemistry (1)
- Medicine and Health Sciences (1)
- Other Animal Sciences (1)
- Other Genetics and Genomics (1)
- Other Pharmacy and Pharmaceutical Sciences (1)
- Pharmaceutics and Drug Design (1)
- Pharmacy and Pharmaceutical Sciences (1)
- Respiratory Tract Diseases (1)
- Keyword
-
- Authentication (1)
- Beef (1)
- Bovine liver (1)
- Bovine neutrophils (1)
- Cationic anti-microbial peptides (1)
-
- Chemotaxis (1)
- Cross-contamination (1)
- Dietary supplements (1)
- Fatty acids (1)
- Gene expression (1)
- Grass-finished beef (1)
- Ground meat (1)
- HBD3 (1)
- Labeling compliance (1)
- Microcin J25 (1)
- Nutrient content claims (1)
- Pork (1)
- Real-time PCR (1)
- Secondary metabolites (1)
- Solid phase peptide synthesis (SPPS) (1)
- Species identification (1)
- Structure/function claims (1)
Articles 1 - 4 of 4
Full-Text Articles in Beef Science
Highly Targeted Metabolomics Coupled With Gene Expression Analysis By Rt–Qpcr Improves Beef Separation Based On Grass, Grain, Or Grape Supplemented Diet, Lucas Krusinski, Chloe Castanon, Rosalee S. Hellberg, Isabella C. F. Maciel, Muhammad Ahsin, Stephan Van Vliet, Jason E. Rowntree, Jennifer I. Fenton
Highly Targeted Metabolomics Coupled With Gene Expression Analysis By Rt–Qpcr Improves Beef Separation Based On Grass, Grain, Or Grape Supplemented Diet, Lucas Krusinski, Chloe Castanon, Rosalee S. Hellberg, Isabella C. F. Maciel, Muhammad Ahsin, Stephan Van Vliet, Jason E. Rowntree, Jennifer I. Fenton
Food Science Faculty Articles and Research
The objective of this study was to use a multi-omics (i.e., gene expression quantification, metabolomics, and fatty acid [FA] profiling) approach to separate and authenticate beef from three different dietary groups. In this 2-year study, Red Angus steers (n = 54) were randomly allocated to one of three treatments: (1) complex biodiverse pasture (GRASS), (2) total mixed ration (TMR) in feedlot (GRAIN), or (3) TMR in feedlot supplemented with 5% (dry matter) grapeseed extract for the last 30 days (GRAPE). FAs were measured by gas chromatography-mass spectrometry (GC–MS), secondary metabolites were identified using ultra-high-performance liquid chromatography tandem mass spectrometry …
Engineering And Characterization Of Human Β-Defensin-3 And Its Analogues And Microcin J25 Peptides Against Mannheimia Haemolytica And Bovine Neutrophils, Harpreet Dhingra, Kamaljit Kaur, Baljit Singh
Engineering And Characterization Of Human Β-Defensin-3 And Its Analogues And Microcin J25 Peptides Against Mannheimia Haemolytica And Bovine Neutrophils, Harpreet Dhingra, Kamaljit Kaur, Baljit Singh
Pharmacy Faculty Articles and Research
Mannheimia haemolytica-induced bovine respiratory disease causes loss of millions of dollars to Canadian cattle industry. Current antimicrobials are proving to be ineffective and leave residues in meat. Antimicrobial peptides (AMPs) may be effective against M. haemolytica while minimizing the risk of drug residues. Cationic AMPs can kill bacteria through interactions with the anionic bacterial membrane. Human β-Defensin 3 (HBD3) and microcin J25 (MccJ25) are AMPs with potent activity against many Gram-negative bacteria. We tested the microbicidal activity of wild-type HBD3, three HBD3 peptide analogues (28 amino acid, 20AA, and 10AA) derived from the sequence of natural HBD3, and MccJ25 …
Bovine Liver Supplement Labeling Practices And Compliance With U.S. Regulations, Anthony J. Silva, Olive J. Dahm, Rosalee S. Hellberg
Bovine Liver Supplement Labeling Practices And Compliance With U.S. Regulations, Anthony J. Silva, Olive J. Dahm, Rosalee S. Hellberg
Food Science Faculty Articles and Research
Bovine liver supplements are sought after by consumers due to their nutrient-dense profile and high protein content. However, there is a lack of information regarding bovine liver supplement labeling practices. The objective of this study was to assess labeling practices and compliance with U.S. regulatory standards among commercially sold bovine liver supplements. The product labels for 49 bovine liver supplements were examined for required information, including a statement of identity; net quantity of contents; “Supplement Facts” label; ingredient statement; and name and place of business of manufacturer, packer, or distributor with domestic address or telephone number. Any claims made on …
Effects Of Poor Sanitation Procedures On Cross-Contamination Of Animal Species In Ground Meat Products, Sunjung Chung, Rosalee S. Hellberg
Effects Of Poor Sanitation Procedures On Cross-Contamination Of Animal Species In Ground Meat Products, Sunjung Chung, Rosalee S. Hellberg
Food Science Faculty Articles and Research
The presence of <1% of an undeclared species in ground meat is generally thought to be indicative of cross-contamination as opposed to intentional mislabeling; however, this has not been experimentally tested. The objective of this study was to quantify the effects of poor sanitation on the cross-contamination of animal species in ground meat products, with the example of undeclared pork in ground beef. Cross-contamination was quantified using real-time polymerase chain reaction (PCR). Three different sanitation treatments were tested with a commercial grinder (“no cleaning”, “partial cleaning”, or “complete cleaning”) in between grinding of pork and beef samples (13.6 kg each). A 100-g sample was collected for each 0.91 kg (2 lb) of beef processed with the grinder and each sanitation treatment was tested twice. For the “no cleaning” treatment, the first 100-g sample of ground beef run through the grinder contained 24.42 ± 10.41% pork, while subsequent samples (n = 14) contained <0.2% pork. With “partial cleaning,” the first sample of ground beef contained 4.60 ± 0.3% pork and subsequent samples contained <0.2% pork. Pork was not detected in ground beef following “complete cleaning.” These results indicate that incomplete cleaning of grinding equipment leads to species cross-contamination at levels of <1% in most cases. Proper sanitation procedures must be followed when grinding multiple species in order to prevent cross-contamination and product mislabeling.