【摘要】 以砂梨新品种金珠果梨为材料 ,对果实的主要营养成分及抗氧化效能进行分析。结果表明 :1金珠果梨果实可食部分达 85 5 .2 g/ kg,可溶性固形物 176 g/ kg,可溶性糖 110 .6 g/ kg,总酸 5 .6 g/ kg,含有人体必需的亮氨酸、缬氨酸和赖氨酸等 8种氨基酸及丰富的 B族维生素和矿物质 ;2果实生理活性物质总酚 7.32 2 m g/ g,类黄酮 0 .2 4 5 mg/ g,绿原酸 0 .4 6 7m g/ g;3金珠果梨果汁具有较强的清除 · OH的能力和抗脂质过氧化的活性更多还原

【Abstract】 The paper studied the main nutrition component and activity of antioxidant in fruits of P.pyrifolia (Burm.f) Nakai cv.Jinzhuguo.The results showed that:(1) The contents of edible protion,TTS,total sugar and acid in Jinzhuguo fruits were 855.2,176,110.6 and 5.6 g/kg respectively.And it contains 8 kinds of essential amino acids,abundant Vitamin B and minerals;(2) The biological active ingredient contents of total phenolics, flavonoid and chlorogenic acid in fruits were 7.322,0.245 and 0.467 mg/g respectively;(3) The CI 50 of scavenging ·OH of juice is 84.54 μL,and its juice could inhibit lipid peroxidation significantly in liver and brain homogenates of rabbit.These indicate that Jinzhaguo fruits have large quantities of nutrition and antioxidant matters,and is worth to be further researched.更多还原