030714_knoesen_BN0123 - a photo on Flickriver

From left to right: Andre Knoesen, Chik Brenneman, Nicholas Shrake, Roger Boulton, Rajeevan Amirtharajah

Nicholas Shrake, who earned his master’s degree in electrical engineering at UC Davis in 2014, is first author on a paper that has been selected as the best enology paper published that year in the American Journal of Enology and Viticulture.

His co-authors on the paper, titled “In-Line Measurement of Color and Total Phenolics During Red Wine Fermentations Using a Light-Emitting Diode Sensor,” are Rajeevan Amirtharajah and André Knoesen, both in the UC Davis Department of Electrical and Computer Engineering; Charles Brenneman, of the UC Davis Department of Viticulture and Enology; and Roger Boulton, a professor in the Department of Chemical Engineering and Materials Science, and the Stephen Sinclair Scott Endowed Chair in Enology.

The paper details the development of a reduced-cost colorimeter for the tracking of total phenolics and color during fermentation. The colorimeter makes absorbance measurements by using multiple light-emitting diodes (LEDs) that span the ultraviolet and visible spectrums. The sensor’s performance was evaluated by analyzing samples collected from multiple red wine fermentations performed in the UC Davis Robert Mondavi Institute during the 2012 season.

More info: engineering.ucdavis.edu/blog/uc-davis-graduate-earns-asev...

Photo by Brian Nguyen/UC Davis College of Engineering

Some rights reserved

Taken on: March 7, 2014

Tags:

Sacramento

USA

Sets appears in: • Nick Shrake

Camera: Nikon D3S, f/4.0, 1/250 sec, 38mm, ISO 1000 (more info) (hide info)

Camera:	Nikon D3S
Lens:	24.0-70.0 mm f/2.8
Aperture:	f/4.0
Exposure Time:	0.004 sec (1/250)
Focal Length:	38mm
ISO:	1000
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Center-weighted average
White Balance:	Auto
Gain Control:	High gain up
Sharpness:	Hard
Color Space:	Uncalibrated
Software:	Adobe Photoshop Camera Raw 8.7.1 (Macintosh)
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