摘要
以16个柑橘品种为材料,通过测定叶片、果皮、果肉和种子4种组织中超氧化物歧化酶(SOD)的活性大小,研究柑橘SOD的分布情况,以及在柑橘生长过程中SOD活性的变化趋势。结果表明:柑橘果皮、果肉、种子和叶片4种组织中均存在SOD,其活性大小依次为:叶片>种子>果皮>果肉;柑橘各个组织之间SOD活性呈显著性差异,个别品种的相同组织之间SOD的活性也呈显著差异。在柑橘生长中后期,随着果实的逐渐成熟其果皮和果肉组织中SOD的活性变化呈现多样化趋势,但活性变化幅度较小;在种子和叶片组织中SOD的活性变化呈持续上升趋势。
SOD activities in peel,pulp,seed and leaf tissues from 16 citrus varieties were measured.The distribution of SOD activity in citrus tissues and the change of SOD activity during citrus growth period were analyzed.The results showed that SOD activity was detected in all the four citrus tissues with significant differences among them and decreased in the following order: leaf seed peel pulp.Significant differences in SOD activity were observed for the same tissue among some of the citrus varieties studied.During the middle and late growth stages,SOD activity showed diverse changing trends within a narrow range with increasing degree of maturity;SOD activity in seed and leaf tissues revealed an increasing trend.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第21期47-52,共6页
Food Science
基金
"十一五"国家科技支撑计划项目(2007BAD47B06)
国家星火计划项目(S2012F100026)
关键词
柑橘
SOD
活性
分布
citrus
superoxide dismutase
activity
distribution