亚热带植物科学
亞熱帶植物科學
아열대식물과학
SUBTROPICAL PLANT SCIENCE
2013年
1期
49-52
,共4页
紫果猕猴桃%多酚氧化酶活性%总酚含量
紫果獼猴桃%多酚氧化酶活性%總酚含量
자과미후도%다분양화매활성%총분함량
Actinidia arguta var. purpurea%polyphenol oxidase activity%total phenol content
采用紫果猕猴桃嫩枝和叶柄为试材,分析全年中植株多酚氧化酶(PPO)活性和总酚含量的变化规律.结果表明,紫果猕猴桃植株PPO活性的最适pH为7.0;最佳底物为邻苯二酚,且浓度为0.16 mol/L;最佳温度为25℃.紫果猕猴桃植株生长期的PPO活性明显高于休眠期,植株总酚含量在4月、5月、9月达最低.
採用紫果獼猴桃嫩枝和葉柄為試材,分析全年中植株多酚氧化酶(PPO)活性和總酚含量的變化規律.結果錶明,紫果獼猴桃植株PPO活性的最適pH為7.0;最佳底物為鄰苯二酚,且濃度為0.16 mol/L;最佳溫度為25℃.紫果獼猴桃植株生長期的PPO活性明顯高于休眠期,植株總酚含量在4月、5月、9月達最低.
채용자과미후도눈지화협병위시재,분석전년중식주다분양화매(PPO)활성화총분함량적변화규률.결과표명,자과미후도식주PPO활성적최괄pH위7.0;최가저물위린분이분,차농도위0.16 mol/L;최가온도위25℃.자과미후도식주생장기적PPO활성명현고우휴면기,식주총분함량재4월、5월、9월체최저.
Using the twigs and petioles of Actinidia arguta var. purpurea as test materials, the polyphenol oxidase (PPO), total phenol content, and their change pattern were analyzed. The results showed that, the suitable pH value for determining A. arguta var. purpurea PPO activity was 7.0, the optimal substrate was oxophenic acid, with the concent of 0.16 mol/L, and the optimum temperature was 25 °C. The PPO activity of A. arguta var. purpurea at growth phase was higher than at dormancy stage. The total phenol content of A. arguta var. purpurea was the minimum in April, May and September.
