کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8881866 | 1624951 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quality assessment of tomato fruit by optical absorption and scattering properties
ترجمه فارسی عنوان
ارزیابی کیفیت میوه های گوجه فرنگی از طریق جذب نوری و خواص
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
This paper reports on the measurement of optical properties of tomato fruit over the wavelength range of 550-300â¯nm by means of a spatially-resolved diffuse reflectance technique, for assessing the firmness, soluble solids content (SSC) and pH. Spatially resolved diffuse reflectance spectra of 600 'Sun Bright' tomato samples harvested at six maturity stages were acquired using a newly developed spatially resolved spectroscopy (SRS) system, from which the reduced scattering (μâ²s) and absorption (μa) coefficients were estimated using an inverse algorithm for the diffusion theory model. Tomato firmness was measured using two reference methods, i.e., compression and puncture, while SSC and pH were measured using the standard refractometry and pH meter. Partial least squares (PLS) models were developed, based on μâ²s, μa and their combinations, for predicting the three quality parameters. While both μâ²s and μa were correlated with tomato firmness, SSC and pH, better prediction results were obtained for the multiplication of μâ²s and μa (i.e., μaÃμâ²s) except for puncture maximum force. PLS models gave good predictions of compression maximum force and puncture maximum force, slope and flesh firmness, with the correlation coefficients of 0.894, 0.915, 0.923, 0.835, respectively, while they had poor predictions of tomato SSC and pH with the correlation coefficients of 0.623 and 0.769, respectively. This research demonstrated that the SRS technique, along with the absorption and scattering coefficients, has potential for nondestructive measurement of quality attributes, especially firmness, of tomato fruit.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Postharvest Biology and Technology - Volume 143, September 2018, Pages 78-85
Journal: Postharvest Biology and Technology - Volume 143, September 2018, Pages 78-85
نویسندگان
Yuping Huang, Renfu Lu, Dong Hu, Kunjie Chen,