Nutrient Composition and Development and Utilization Prospects of Stem and Leaf of Yunnan Purple Yam
A study was conducted on the nutrition,functional components,and development and utilization of the stems and leaves of Yunnan purple yam.The results showed that in addition to high conventional nutrients such as protein(157 g/kg),fat(9 g/kg),carbohydrates(666 g/kg),crude fiber(309 g/kg),ash(96 g/kg),and energy(14 320 kJ/kg),the stems and leaves of Yunnan purple yam also contain abundant allantoin(5.3 g/kg),polyphenols(2.7 g/kg),and crude polysaccharides(25.9 g/kg)16 amino acids,nitrogen(25.1 g/kg),phosphorus(2 887 mg/kg),potassium(3 340 mg/kg),sodium(6.58 mg/kg),calcium(9 023 mg/kg),magnesium(2 293 mg/kg),manga-nese(210 mg/kg),zinc(29.7 mg/kg),iron(122.6 mg/kg),boron(28.8 mg/kg),molybdenum(0.182 mg/kg),β-Carotenoids(1 413 μg/g),vitamin E(73.6 mg/kg),and niacin(31.12 μg/g),and had high aboveground biomass,which could be pruned during growth and harvested and utilized after autumn.The tender stem tips were used as vegetables,and the leaves were made into purple yam tea for drink-ing.The stem and leaves could be used as feed to improve meat quality and extract and process functional components to produce nutritional and health products,food,and medicines,transform waste into treasure and improve economic benefits.
Purple yamStems and leavesNutritional compositionDevelopment and utilization
万方数据
维普
