Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra
The glycoalkaloids contents of potato tubers are usually measured by the destructive analysis that consumes time and requires expensive high-performance equipment. This study was carried out to determine the possibility of nondestructive estimation of α-solanine and α-chaconine content in potato tub...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Food Quality |
| Online Access: | http://dx.doi.org/10.1155/2020/8884219 |
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| author | Shimeles Tilahun Hee Sung An In Geun Hwang Jong Hang Choi Min Woo Baek Han Ryul Choi Do Su Park Cheon Soon Jeong |
| author_facet | Shimeles Tilahun Hee Sung An In Geun Hwang Jong Hang Choi Min Woo Baek Han Ryul Choi Do Su Park Cheon Soon Jeong |
| author_sort | Shimeles Tilahun |
| collection | DOAJ |
| description | The glycoalkaloids contents of potato tubers are usually measured by the destructive analysis that consumes time and requires expensive high-performance equipment. This study was carried out to determine the possibility of nondestructive estimation of α-solanine and α-chaconine content in potato tubers. Visible/near-infrared (VIS/NIR) spectra, color values, and the reference α-solanine and α-chaconine were measured from 180 tubers of ‘Atlantic’ and ‘Trent’ potato cultivars with eight replications at two-week intervals during the storage up to ten weeks. The partial least square (PLS) regression method was used to develop models correlating color and spectra data to the measured reference data. Regression coefficient (r) between color variables (Hunter a∗, a∗/b∗, and (a∗/b∗)2) and the actual measured values of a-solanine and a-chaconine content were 0.74, 0.62, and 0.62 and 0.70, 0.58, and 0.57, respectively, for the prediction set. Concurrently, equations were developed from color variables in multiple regression with r-values of 0.76 and 0.71 for α-solanine and α-chaconine, respectively. Additionally, the selected PLS model of VIS/NIR spectra had promising predictive power for α-solanine and α-chaconine with r-values of 0.68 and 0.63, respectively, between measured and predicted samples. Taken together, although it requires further studies to improve the prediction power of the developed models, the results of this study revealed the possibility of using VIS/NIR spectra and color variables for the prediction of α-solanine and α-chaconine contents from intact unpeeled potato tubers with chemical-free, fast, and cheap assessment methods. |
| format | Article |
| id | doaj-art-1a57d7aaaefd406bad3e72d7bc103df1 |
| institution | Kabale University |
| issn | 0146-9428 1745-4557 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Food Quality |
| spelling | doaj-art-1a57d7aaaefd406bad3e72d7bc103df12025-02-03T01:04:02ZengWileyJournal of Food Quality0146-94281745-45572020-01-01202010.1155/2020/88842198884219Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR SpectraShimeles Tilahun0Hee Sung An1In Geun Hwang2Jong Hang Choi3Min Woo Baek4Han Ryul Choi5Do Su Park6Cheon Soon Jeong7Department of Horticulture, Kangwon National University, Chuncheon 24341, Gangwon, Republic of KoreaDepartment of Horticulture, Kangwon National University, Chuncheon 24341, Gangwon, Republic of KoreaFrusen Co. Ltd, Yongin 702, Republic of KoreaDepartment of Horticulture, Kangwon National University, Chuncheon 24341, Gangwon, Republic of KoreaDepartment of Horticulture, Kangwon National University, Chuncheon 24341, Gangwon, Republic of KoreaDepartment of Horticulture, Kangwon National University, Chuncheon 24341, Gangwon, Republic of KoreaHorticulture Section, School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca 14853, NewYork, USADepartment of Horticulture, Kangwon National University, Chuncheon 24341, Gangwon, Republic of KoreaThe glycoalkaloids contents of potato tubers are usually measured by the destructive analysis that consumes time and requires expensive high-performance equipment. This study was carried out to determine the possibility of nondestructive estimation of α-solanine and α-chaconine content in potato tubers. Visible/near-infrared (VIS/NIR) spectra, color values, and the reference α-solanine and α-chaconine were measured from 180 tubers of ‘Atlantic’ and ‘Trent’ potato cultivars with eight replications at two-week intervals during the storage up to ten weeks. The partial least square (PLS) regression method was used to develop models correlating color and spectra data to the measured reference data. Regression coefficient (r) between color variables (Hunter a∗, a∗/b∗, and (a∗/b∗)2) and the actual measured values of a-solanine and a-chaconine content were 0.74, 0.62, and 0.62 and 0.70, 0.58, and 0.57, respectively, for the prediction set. Concurrently, equations were developed from color variables in multiple regression with r-values of 0.76 and 0.71 for α-solanine and α-chaconine, respectively. Additionally, the selected PLS model of VIS/NIR spectra had promising predictive power for α-solanine and α-chaconine with r-values of 0.68 and 0.63, respectively, between measured and predicted samples. Taken together, although it requires further studies to improve the prediction power of the developed models, the results of this study revealed the possibility of using VIS/NIR spectra and color variables for the prediction of α-solanine and α-chaconine contents from intact unpeeled potato tubers with chemical-free, fast, and cheap assessment methods.http://dx.doi.org/10.1155/2020/8884219 |
| spellingShingle | Shimeles Tilahun Hee Sung An In Geun Hwang Jong Hang Choi Min Woo Baek Han Ryul Choi Do Su Park Cheon Soon Jeong Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra Journal of Food Quality |
| title | Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra |
| title_full | Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra |
| title_fullStr | Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra |
| title_full_unstemmed | Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra |
| title_short | Prediction of α-Solanine and α-Chaconine in Potato Tubers from Hunter Color Values and VIS/NIR Spectra |
| title_sort | prediction of α solanine and α chaconine in potato tubers from hunter color values and vis nir spectra |
| url | http://dx.doi.org/10.1155/2020/8884219 |
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