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Chemometric classification of pigmented rice varietiesbased on antioxidative properties in relation to color |
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| รหัสดีโอไอ | |
| Creator | 1. Phaiwan Pramai 2. Sudarat Jiamyangyuen |
| Title | Chemometric classification of pigmented rice varietiesbased on antioxidative properties in relation to color |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2559 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 38 |
| Journal No. | 5 |
| Page no. | 463-472 |
| Keyword | pigmented rice,color,antioxidant capacities,hierarchical cluster analysis,principal component analysis |
| ISSN | 0125-3395 |
| Abstract | The pigmented Thai rice varieties including red and black color and non-pigmented rice (white) collected from differentgrowth sites in the north of Thailand and were determined for color and antioxidant properties. Anthocyanins were the majorcompound in group of black rice (21.15-441.96 mg/100 g rice). Total phenolic, flavonoid, and ?-tocopherol contents werehighest in the black rice followed by red rice and antioxidant capacities were predominant in pigmented varieties. Black ricegrown in mountainous area presented the highest antioxidant activity compared to the other growing locations. The colorparameters, especially L* value presented the negative correlations with antioxidant parameters, while the antioxidantcontents, excepted ?-oryzanol content had significant correlation with antioxidant capacities. Pigmented rice varieties couldbe clearly classified into 4 groups using PCA and HCA, which provided a good indicator to classify pigmented rice varietiesbased on color and antioxidative properties. |
