Hosahalli S. Ramaswamy

Learn More
Radio frequency (RF) heating is a promising technology for food applications because of the associated rapid and uniform heat distribution, large penetration depth and lower energy consumption. Radio frequency heating has been successfully applied for drying, baking and thawing of frozen meat and in meat processing. However, its use in continuous(More)
In precision farming, image analysis techniques can aid farmers in the site-specific application of herbicides, and thus lower the risk of soil and water pollution by reducing the amount of chemicals applied. Using weed maps built with image analysis techniques, farmers can learn about the weed distribution within the crop. In this study, a digital camera(More)
Packaged fresh pork chops (30-g samples) containing an indigenous bacterial population of approximately 10(7) CFU/g were inoculated with 10(7) CFU of Listeria monocytogenes Scott A per g, heat sealed, and subjected to high-pressure processing at 200 to 400 MPa for up to 90 min. Total counts and the number of surviving L. monocytogenes cells were determined(More)
Yang, C.-C., Prasher, S.O., Landry, J.-A., Perret, J. and Ramaswamy, H.S. 2000. Recognition of weeds with image processing and their use with fuzzy logic for precision farming. Can. Agric. Eng. 42:195200. Herbicide use can be reduced if the spatial distribution of weeds in the field is taken into account. This paper reports the initial stages of development(More)
High pressure (HP) is an alternative technique for thermal sterilization of foods with minimum quality loss. HP destruction kinetics of bacterial spores is essential to establishing sterilization process, but knowledge in this field is still very limited. In this study, destruction kinetics was investigated using Clostridium sporogenes PA 3679 (ATCC7955)(More)
The influences of high pressure and temperature on the rheological characteristics of glycomacropeptide (GMP) were studied using a controlled rate rheometer. GMP dispersions at a concentration of 12.5% (w/w) were subjected to high pressure from 100 to 400 MPa for 30 min and temperature from 20 to 80 degrees C for 15 min followed by rheological measurements(More)
The combined effects of water activity (aw), storage temperature, headspace oxygen and carbon dioxide concentrations on the growth of, and aflatoxin production by Aspergillus flavus on sterile peanuts were examined using a process optimization technique termed response surface methodology (RSM). Regression analysis of the data indicated that aw, storage(More)
We have purified a high molecular weight ribonuclease (hmRNase) from human milk by a two-step column chromatographic procedure and characterized the enzyme. The molecular mass of hmRNase is 80 kDa as determined from SDS-polyacrylamide gel electrophoresis. The pH optimum of the enzyme is in the range of 7.5-8.0, similar to other secretory RNases. hmRNase is(More)
Inactivation kinetics of immobilized bovine pancrease trypsin (type III) was used in conjunction with a finite difference model to verify fluid-to-particle heart transfer coefficients to particulates in a holding tube of a pilot scale aseptic processing simulator operated at temperature ranging from 90 and 110 degrees C. The enzyme was sealed in a stainless(More)