摘要
用热水浸泡法从南瓜中提取南瓜多糖，在碱性条件下，南瓜多糖水溶液与三氯化铁反应合成南瓜多糖铁配合物（PPC），并对PPC的一般理化性质进行了测定。结果表明：PPC是深棕红色无定型粉末，易溶于水，且水溶液呈中性，在pH值3～12范围内不沉淀，不水解；PPC的水溶液中不存在游离的铁（Ⅲ）；PPC中的铁（Ⅲ）易被抗坏血酸还原成铁（Ⅱ）。
Pumpkin polysaccharide was extracted from pumpkin with warm water, then pumpkin polysaccharide-Fe （Ⅲ）compIex（PPC） was synthesized with pumpkin poIysaccharide and FeCl3 under the alkaline condition, then the physicochemical property of PPC was determined.The results showed that PPC is a kind of heavy red brownish and shapeless powder. It is water soluble, the solution is neutral. In water solution, PPC would not be precipitated or be hydrolyzed when pH was 3 to 12 .There is no Fe（ Ⅲ ）in the PPC solution. Fe（ Ⅲ ）in PPC could be reduced to Fe （ Ⅱ ）by ascorbic acid. So PPC would be expected to be exploited and used as an better iron-supplementary.
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2005年第4期50-52,共3页
Journal of Henan University of Technology：Natural Science Edition
关键词
南瓜多糖
南瓜多糖铁配合物
合成
物理化学性质
pumpkin polysaccharide
polysaccharide-Fe（ Ⅲ ）complex
synthesis
physicochemical property
