Scholarlink

<p>Although pigmented rice has gained considerable nutritional interest, yet comprehensive information on compositional, mineral and targeted metabolomic variability among Himalayan rice landraces remains limited. Therefore, the present study aimed to assess the diversity in composition, physico-chemical, functional and targeted metabolomic profiles of Indian Himalayan red and white landraces. Red rice landraces exhibited significantly higher total phenolic content (244- 463&#xa0;mg GAE/100&#xa0;g) and total flavonoid content (692- 854&#xa0;mg QE/100&#xa0;g) than white landraces. Targeted metabolomic profiling revealed the predominance of bound phenolic compounds, including gallic acid (6.8- 10.4&#xa0;mg/100&#xa0;g), <i>p</i>-coumaric acid (5.17–11.46&#xa0;mg/100&#xa0;g), chlorogenic acid (2.71– 10.62&#xa0;mg/100&#xa0;g), sinapic acid (0.19–1.62&#xa0;mg/100&#xa0;g), <i>trans</i>-ferulic acid (0.46–1.57&#xa0;mg/100&#xa0;g), quercetin (0.16- 3.92&#xa0;mg/100&#xa0;g) and rutin (0.16– 0.76&#xa0;mg/100&#xa0;g) and higher proportions of glutamic acid, serine, alanine, tyrosine and proline in red rice landraces. Red rice also contained higher concentrations of minerals, including Fe (11- 17&#xa0;ppm), Mg (264- 684&#xa0;ppm), Zn (0.36- 6.49&#xa0;ppm), Cu (5- 6&#xa0;ppm) and Ca (308- 675&#xa0;ppm), along with comparatively lower phytic acid content (420- 482&#xa0;mg/100&#xa0;g). Principal component analysis (PCA) explained 62.6% of the total variation and effectively differentiated red and white rice landraces based on compositional and metabolomic characteristics, with red rice genotypes exhibiting superior association with antioxidant and phenolic traits emphasizing their potential as valuable genetic resources for functional food development, nutraceutical applications and crop improvement programs.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Compositional Diversity and Targeted Metabolomic Characterization of Himalayan Red and White Rice

  • 期刊论文

  • 发表日期：

    2026年6月29日

查看全文
  • Sonal Aggarwal,
  • Arun Kumar,
  • Mohar Singh,
  • Narpinder Singh

摘要

Although pigmented rice has gained considerable nutritional interest, yet comprehensive information on compositional, mineral and targeted metabolomic variability among Himalayan rice landraces remains limited. Therefore, the present study aimed to assess the diversity in composition, physico-chemical, functional and targeted metabolomic profiles of Indian Himalayan red and white landraces. Red rice landraces exhibited significantly higher total phenolic content (244- 463 mg GAE/100 g) and total flavonoid content (692- 854 mg QE/100 g) than white landraces. Targeted metabolomic profiling revealed the predominance of bound phenolic compounds, including gallic acid (6.8- 10.4 mg/100 g), p-coumaric acid (5.17–11.46 mg/100 g), chlorogenic acid (2.71– 10.62 mg/100 g), sinapic acid (0.19–1.62 mg/100 g), trans-ferulic acid (0.46–1.57 mg/100 g), quercetin (0.16- 3.92 mg/100 g) and rutin (0.16– 0.76 mg/100 g) and higher proportions of glutamic acid, serine, alanine, tyrosine and proline in red rice landraces. Red rice also contained higher concentrations of minerals, including Fe (11- 17 ppm), Mg (264- 684 ppm), Zn (0.36- 6.49 ppm), Cu (5- 6 ppm) and Ca (308- 675 ppm), along with comparatively lower phytic acid content (420- 482 mg/100 g). Principal component analysis (PCA) explained 62.6% of the total variation and effectively differentiated red and white rice landraces based on compositional and metabolomic characteristics, with red rice genotypes exhibiting superior association with antioxidant and phenolic traits emphasizing their potential as valuable genetic resources for functional food development, nutraceutical applications and crop improvement programs.