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Full-Text Articles in Life Sciences
Controlling The Mineral Content Of Sweet Whey Powder In An Industrial Setting, Matthew W. Sawyer
Controlling The Mineral Content Of Sweet Whey Powder In An Industrial Setting, Matthew W. Sawyer
Dairy Science
The objective of this project was to reduce the final ash content of sweet whey powder. The data for this project was collected over a two-week period, from July 13th to July 27th 2010 in a dairy plant in the Mid-West of the United States. The data is composed of particle size test, ash test, and pH test. The conclusions of this study are that multiple pre-heat treatment tank changes contribute to mineral content by requiring more buffering than usual. The low pH of this pre-heat liquid forces a need for more buffering. Particle segregation may play a role in …
Effect Of Drying Method On The Antioxidant Capacity Of Six Larniaceae Herbs, M. Hossain, Catherine Barry-Ryan, Ana Belen Martin-Diana, N. Brunton
Effect Of Drying Method On The Antioxidant Capacity Of Six Larniaceae Herbs, M. Hossain, Catherine Barry-Ryan, Ana Belen Martin-Diana, N. Brunton
Articles
The present study investigated the changes in total phenols (TP), rosmarinic acid content and antioxidant capacity of six Lamiaceae herbs (rosemary, oregano, marjoram, sage, basil and thyme) after three drying treatments (air-, freeze- and vacuum oven-drying) stored for 60 days at −20 °C and compared to fresh samples. Ferric reducing antioxidant property (FRAP) and oxygen radical absorbance capacity (ORAC) were used as markers for antioxidant capacity. Air-dried samples had significantly (p < 0.05) higher TP, rosmarinic acid content and antioxidant capacity than had freeze-dried and vacuum oven-dried samples throughout the storage period. Fresh samples had the lowest values for the parameters tested. Vacuum oven-drying resulted in higher TP and FRAP values in rosemary and thyme during 60 days of storage than did freeze-drying. In ORAC assay, the difference was significantly higher only in thyme. Storage did not show any effect on the dried samples for the parameters tested.