| 摘要: |
| 为研究1-MCP(1-甲基环丙烯)对CO2脱涩柿果实软化及细胞壁成分变化的影响,探讨延长柿果实采后脱涩后货架期的方法,以‘磨盘柿’(Diospyros kaki Thunb cv.Mopan)为材料,研究了采用CO2、CO2+0.5 μL/L 1-MCP 组合处理24 h后,在室温下贮存对采后脱涩柿果实软化和细胞壁成分的影响。结果表明:CO2处理和CO2+0.5 μL/L 1-MCP组合处理均能够有效的使涩柿脱涩,CO2+0.5 μL/L 1-MCP组合处理相对于CO2处理来说在脱涩的同时能够有效的降低柿果实采后脱涩后柿果实贮存过程中硬度下降的速率,降低呼吸强度、乙烯释放量并且延迟呼吸高峰、乙烯高峰的出现时间,延缓柿果实水溶性果胶上升和共价性果胶下降的速率,以及半纤维素和纤维素含量下降的速率。因此,CO2+0.5 μL/L 1-MCP组合处理可以延长柿果实采后脱涩后柿果实的货架期。 |
| 关键词: 磨盘柿 1-MCP CO2 脱涩 软化 细胞壁成分 |
| DOI：10.11841/j.issn.1007-4333.2015.04.12 |
| 投稿时间：2014-11-21 |
| 基金项目:公益性行业(农业)科研专项(201203047) |
|
| Effects of 1-MCP on fruit softening and cell wall component variation of persimmon variety treated with CO2 |
|
CHENG Qing, LIANG Ping-zhuo, LI Ying, LI Bao
|
| (College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China) |
| Abstract: |
| Aim of this study was to test effects of 1-MCP on fruit softening and cell wall ingredient variation of the persimmon (Diospyros kaki Thunb cv.Mopan) treated with CO2.The treatments included control, CO2 and CO2+0.5 μL/L 1-MCP.The results indicated that both CO2 and CO2+0.5 μL/L 1-MCP could dramatically remove astringency of persimmon fruit. Moreover, the combination treatment of CO2 and 0.5 μL/L 1-MCP could effectively maitain the fruits firmness, decrease respiration rate and ethylene production, delay appearing time of respiratory peak and ethylene peak, reduce soluble pectin rise rate and covalent pectin decline rate, slow down degradation rate of hemicellulose and cellulose as well.The CO2+0.5 μL/L 1-MCP treatment could delay ripening and softening of persimmon fruits and prolong shelf life of de-astringency persimmon fruits. |
| Key words: Mopan' persimmon 1-MCP,CO2 de-astringency softening cell wall component |
