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标题：Effect of Some Post-Harvest Treatments on the Nutritional Properties of Cnidoscolus acontifolus Leaf
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作者：Ganiyu OBOH
期刊名称：Pakistan Journal of Nutrition
印刷版ISSN：1680-5194
电子版ISSN：1994-7984
出版年度：2005
卷号：4
期号：4
页码：226-230
DOI：10.3923/pjn.2005.226.230
出版社：Asian Network for Scientific Information
摘要：Cnidoscolus acontifolus (Americana leaf) leaves are used as soup condiment in Nigeria either in the processed or unprocessed forms. This study aims at assessing the effect of some post-harvest treatment on the nutrient, antinutrient and antioxidant potentials of the leafy vegetable. In this study fresh leaves of Cnidoscolus acontifolus were subjected to different food processing method such as soaking, blanching, abrasion with or without salt. The proximate, antinutrient (phytate and cyanide), minerals (Ca, Fe, Mg, Na, K, Zn and Mn), Vitamin C and total phenol content were subsequently determined. The result of the study shows that the unprocessed Cnidoscolus acontifolus leaf had 7.8% protein, 1.6% fat, 2.4% crude fibre, 2.3% ash and 83.4% moisture content . The total phenol (0.7%), phytate (479.5 mg/100g), mineral and vitamin C (535.6mg/100g) content were generally high, while the cyanide content was low. However, the various conventional food processing techniques caused a significant decrease (P vitamin C , cyanide and phytate content. While it caused a significant increase (P Cnidoscolus acontifolus leaf. In conclusion, the leaf of Cnidoscolus acontifolus has a very high nutrient, antinutrient, mineral and antioxidant potential; however the various conventional post-harvest treatments will cause a significant decrease (P<0.05) in the nutrient and antinutrient content, and same time caused a significant decrease in the antioxidant potential.