摘要
对汉中地区的省沽油等8种野生食用植物中营养元素和部分植物化学成分含量进行测定,并评价其乙醇提取物的体外抗氧化活性.研究结果显示:8种野生食用植物宏量营养成分和有益矿物质含量存在差异,铅和汞含量均未超标.色氨酸为石蒜和垂盆草的第1限制性氨基酸,含硫氨基酸为其余6种野生食用植物的第1限制性氨基酸.除了石蒜,其余7种野生食用植物乙醇提取物的FRAP值>300μmol/g和DPPH·清除率>50%,显示出较强的体外抗氧化活性,而其活性与酚酸含量之间具有极显著的正相关性(R2=0.861 7、0.914 5,P<0.01).
Eight wild edible plants collected in Hanzhong were analyzed for nutritional elements and phytochemical constituents including Staphylea bumalda etc, with antioxidant activity in vitro of their ethanol extractions were evaluated. Results showed there were differences among proximate compositions, amino acids and beneficial minerals of eight wild edible plants. The contents of Pb and Hg were found below the limit values. Tryptophan was the first limiting amino acid in Lycoris radiata and Sedum sarmentosum while methionine and cysteine were both the first limiting amino acid in the other wild edible plants. Their ethanol extractions except L. radiata demonstrated high antioxidant activities with FRAP value exceeding 300 umol/g and DPPH · scavering capacity exceeding 50%, which were positively correlated to their total phenolics content significantly（R2 =0. 861 7 and 0. 914 5, P〈0.01）.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第3期98-103,共6页
Journal of Shaanxi Normal University：Natural Science Edition
基金
陕西省自然科学基础研究计划项目(2003B08
2006B18)
中央高校基本科研业务费专项资金资助(GK200902042)
陕西师范大学2010年勤助科研创新基金项目(QZZD11017
QZZD11045)
