Bassey M E, Etuk E U, Ibe M M, Ndon B A
Department of Botany, Horticulture and Microbiology, University of Uyo, AKS Nigeria.
Plant Foods Hum Nutr. 2001;56(1):7-12. doi: 10.1023/a:1008185513685.
Tender and mature leaflets and leaves of Diplazium sammatii ('Nyama idim'), were separately investigated for their nutritional and antinutritional properties. Results showed little difference in proximate nutritional contents between tender and mature leaves, except for crude fat, which was present in levels 1.5 times higher in younger than in older leaves. Crude fiber levels were low. Zinc (Zn) and copper (Cu) were higher in younger leaves (6.8 and 3.5 mg/100 g dry matter, respectively, compared to 4.5 and 2.5 mg/100 g dry matter, respectively in older leaves). Older leaves contained higher levels of iron (Fe): 6.7 mg/100 g dry matter, in comparison to 4.3 mg/100 g dry matter, in young leaves. Oxalate levels were slightly higher in younger than older leaves. However, the reverse was true for tannin content. Both antinutritional compounds were present in levels which should be safe.
对疏羽双盖蕨（‘Nyama idim’）的嫩叶和成熟叶片分别进行了营养和抗营养特性研究。结果表明，除粗脂肪外，嫩叶和成熟叶片的近似营养成分差异不大，粗脂肪在嫩叶中的含量比老叶高1.5倍。粗纤维含量较低。嫩叶中的锌（Zn）和铜（Cu）含量较高（分别为6.8和3.5毫克/100克干物质，相比之下，老叶中分别为4.5和2.5毫克/100克干物质）。老叶中的铁（Fe）含量较高：为6.7毫克/100克干物质，而嫩叶中为4.3毫克/100克干物质。草酸含量在嫩叶中略高于老叶。然而，单宁含量则相反。两种抗营养化合物的含量均处于安全水平。
