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New Findings on Porphyrins Described by Investigators at University of Milan

May 27, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- A new study on Biological Factors is now available. According to news reporting originating in Milan, Italy, by NewsRx journalists, research stated, "Sunburn can affect grape quality both for chemical modifications and by visual impact of the browning. Optical properties of 17 white grape accessions were investigated in the visible region using a noninvasive instrument."

The news reporters obtained a quote from the research from the University of Milan, "Reflectance spectra were obtained using a Jaz System spectrometer. Browning was induced by exposing grape bunches to direct sunlight at 12:30 p.m. for 5 h. During the experiment, the global solar radiation ranged from 2.6 to 2.7 MJ m(-2) h(-1) and the air temperature from 24.3 to 29.2 degrees C; the exposed berries reached a temperature of 34.2 degrees C in comparison to the 30.4 degrees C of the shaded ones. Differences between the spectra of controlled and exposed berries mainly emphasized the loss in chlorophyll and the formation of brown compounds. A positive correlation between the chlorophyll concentration and berry browning was proposed."

According to the news reporters, the research concluded: "Developing rapid, noninvasive, and low-cost methods based on reflectance spectroscopy could support grapevine variety characterization with respect to sunburn susceptibility as well as study of the physiological processes involved in the symptoms' appearance."

For more information on this research see: Characterization of Grape (Vitis vinifera L.) Berry Sunburn Symptoms by Reflectance. Journal of Agricultural and Food Chemistry, 2014;62(14):3043-3046. Journal of Agricultural and Food Chemistry can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Agricultural and Food Chemistry - www.pubs.acs.org/journal/jafcau)

Our news correspondents report that additional information may be obtained by contacting L. Rustioni, University of Milan, CIRIVE, I-20133 Milan, Italy. Additional authors for this research include L. Rocchi, E. Guffanti, G. Cola and O. Failla (see also Biological Factors).

Keywords for this news article include: Milan, Italy, Europe, Biological Factors

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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