Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. NIR Hyperspectral Imaging for Measurement of Internal Quality in StrawberriesPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: Paper number 053131, 2005 ASAE Annual Meeting . (doi: 10.13031/2013.19105) @2005Authors: Masateru Nagata, Jasper G. Tallada, Taiichi Kobayashi, Hiroshi Toyoda Keywords: Strawberries, Hyperspectral Imaging, Near Infrared light, Firmness, Soluble Solids Content Non-destructive estimation of internal quality of fruits for on-line grading for higher product consistency and enhanced safety will greatly benefit the consumer and the fruit industry as a whole. This research was aimed to develop prediction models for firmness (MPa) and soluble solids content (SSC, %Brix) in strawberries using NIR hyperspectral imaging. From freshly harvested Akihime variety strawberries, NIR hyperspectral images (650-1000nm at 5 nm interval) were taken and calibration models were developed for firmness and SSC using stepwise multiple linear regression. The three-wavelength prediction model for firmness had a correlation of 0.786 and SEP of 0.350 (50% to Full-ripe group). It confirmed the importance of chlorophyll absorbance peak at around 675 nm and water at 980 nm. While for SSC, the five-wavelength prediction model yielded a correlation of 0.87 and SEP of 0.53 (70% to Fullripe group). It included NIR wavelengths above 800 nm where absorptions due to carbohydrate and sugar exist. (Download PDF) (Export to EndNotes)
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