A Light Emitting Diode Based Simplified System for Rapid Grape Ripeness Monitoring

Magwaza L.S. Opara U.L. Nieuwoudt H. Cronje P.J.R. Saeys W. and Nicolaï B. , “NIR spectroscopy applications for internal and external quality analysis of citrus fruit—A review”, Food Bioproc. Technol. 5, 425–444 (2012). doi: http://dx.doi.org/10.1007/s11947-011-0697-1

Wang W. and Paliwal J. , “Near-infrared spectroscopy and imaging in food quality and safety”, Sens. Instrum. Food Qual. 1, 193–207 (2007). doi: http://dx.doi.org/10.1007/s11694-007-9022-0

McClure W.F. and Tsuchikawa S. , in Near-Infrared Spectroscopy in Food Science and Technology, Ed by Ozaki Y. McClure W.F. and Christy A.A. Wiley-Interscience, Hobo-ken, NJ, Ch. 4, pp. 175–107 (2007).

Xiaobo Z. Jiewen Z. Povey M.J.W. Holmes M. and Hanpin M. , “Variables selection methods in near-infrared spectroscopy”, Anal. Chim. Acta 667, 14–32 (2010). doi: http://dx.doi.org/10.1016/j.aca.2010.03.048

Larrain M. Guesalaga A.R. and Ago-Sin E. , “A multipurpose portable instrument for determining ripeness in wine grapes using NIR spectroscopy”. IEEE T. Instrum. Meas. 57(2), 294–302 (2008). doi: http://dx.doi.org/10.1109/TIM.2007.910098

Guidetti R. Beghi R. Bodria L. Spinardi A. Mignani I. and Folini L. , “Prediction of blueberry (Vaccinium corymbosum) ripeness by a portable vis-NIR device”, Acta Hort. 310, 877–885 (2008).

Guidetti R. Beghi R. and Bodria L. , “Evaluation of grape quality parameters by a simple vis/NIR system”, Trans. ASABE 53(2), 477–484 (2010). doi: http://dx.doi.org/10.13031/2013.29556

Beghi R. Spinardi A. Bodria L. Mignani I. and Guidetti R. , “Apples nutraceutic properties evaluation through a visible and nearinfrared portable system”, Food Bioproc. Technol. 6, 2547–2554 (2013). doi: http://dx.doi.org/10.1007/s11947-012-0824-7

Sun D.W. , Hyperspectral Imaging for Food Quality Analysis and Control. Academic Press/Elsevier, San Diego (2010).

Giovenzana V. Beghi R. Malegori C. Civelli R. and Guidetti R. , “Wavelength selection with a view to a simplified handheld optical system to estimate grape ripeness”, Am. J. Enol. Vitic. 65, 117–123 (2014). doi: http://dx.doi.org/10.5344/ajev.2013.13024

Chong I.G. and Jun C.H. , “Performance of some variable selection methods when multicollinearity is present”, Chemometr. Intell. Lab. Syst. 78, 103–112 (2005). doi: http://dx.doi.org/10.1016/j.chemolab.2004.12.011

Civelli R. Giovenzana V. Beghi R. Naldi E. Guidetti R. and Oberti R. , “A simplified, light emitting diode (LED) based, modular system to be used for the rapid evaluation of fruit and vegetable quality: Development and validation on dye solutions”, Sensors 15, 22,705–22,723 (2015). doi: http://dx.doi.org/10.3390/s150922705

Giovenzana V. Civelli R. Beghi R. Oberti R. and Guidetti R. , “Testing of a simplified LED based vis/NIR system for rapid ripeness evaluation of white grape (Vitis vinifera L.) for Franciacorta wine”, Talanta 144, 584–591 (2015). doi: http://dx.doi.org/10.1016/j.talanta.2015.06.055