کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
85398 158944 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Soluble solids content and pH prediction and varieties discrimination of grapes based on visible–near infrared spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Soluble solids content and pH prediction and varieties discrimination of grapes based on visible–near infrared spectroscopy
چکیده انگلیسی

Visible and near infrared reflectance spectroscopy was used for the non-destructive variety discrimination and the prediction of soluble solids content (SSC) and pH of grapes. Spectra of 439 grape samples from three varieties were analyzed by genetic algorithm (GA). Results of GA indicated the most effective wavelengths for the variety discrimination and content prediction. With the spectra of the effective wavelengths from GA, variety discrimination and component content prediction were executed based on least-squares support vector machine. There were 293 samples of grapes used for calibration and the left 146 samples for prediction. The correct answer rate of 96.58% for variety discrimination was achieved. The correlation coefficients are 0.9781 for pH and 0.9065 for SSC in the prediction set. Models established based on effective wavelengths overperformed those that use whole spectral data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers and Electronics in Agriculture - Volume 71, Supplement 1, April 2010, Pages S15–S18
نویسندگان
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