摘要
以黑叶荔枝为材料,以成熟季节的大气平均温度[θ=(30±1.5)℃]为基础,研究35℃、38℃热空气分别处理6 h、12 h和24 h对果实生理特性与贮藏效果的影响.与CK相比,温度升幅增大或处理时间延长,显著提高果皮多酚氧化酶(PPO)活性、果皮过氧化物酶(POD)活性、果实呼吸速率、果皮丙二醛(MDA)含量和果皮质膜相对透性,显著降低果肉可溶性固形物(SS)含量、果肉可滴定酸(TA)含量、果皮花色素苷含量和好果率.POD活性和MDA含量可作为果实生理活性的指标.
Effects of 6 h, 12 h and 24 h treatment with 35 ℃ and 38 ℃ hot air on physiological characteristics and storage quality of litchi ( cv Heiye) were investigated in the paper. Both increase of both amplitude and duration of hot air treatment resulted in a significant increase of peel polyphenol oxidase ( PPO ) activity, peel peroxidase ( POD) activity, respiration rate, malondiadehyde ( MDA) content and relative permeability of cell membrane compared with control; while soluble solids ( SS) content,titratable acidity (TA) content, anthocyanin content of fruits and healthy fruit percentage decreased greatly compared with control. The increase of POD activity and MDA content may be considered indices of fruit physiological activity. Fig 6, Tab 2, Ref 10
出处
《应用与环境生物学报》
CAS
CSCD
2003年第2期137-140,共4页
Chinese Journal of Applied and Environmental Biology
基金
广东省自然科学基金(980032)
广东省"千百十"优秀人才基金[粤高教(2000)6号]资助项目~~
