| CaCl2和6-BA溶液处理对枣果软化褐变及相关酶活性的影响 |
| |
| 引用本文： | 吴彩娥,王文生,寇晓虹,梁丽雅.CaCl2和6-BA溶液处理对枣果软化褐变及相关酶活性的影响[J].农业工程学报,2001,17(5):127-130. |
| |
| 作者姓名： | 吴彩娥 王文生 寇晓虹 梁丽雅 |
| |
| 作者单位： | 山西农业大学;国家农产品保鲜工程技术研究中心;山西农业大学;山西农业大学 |
| |
| 基金项目： | 山西省科技攻关项目(961018) |
| |
| 摘 要： | 试验探讨了鲜枣贮藏过程中果肉软化褐变与PG活性、PPO活性的关系以及采前CaCl2和6-BA溶液处理对采后枣果果肉软化褐变、PG活性、PPO活性的影响。结果表明，枣果采后硬度逐渐下降且与贮藏时间呈极显著负相关，PG活性在贮藏期间呈起伏变化，与枣果软化无显著相关性。 随贮藏时间延长果肉褐变指数逐渐增大，PPO活性逐渐升高，PPO活性与果肉软化褐变的发生相一致。采前用1% CaCl2、15 mg/kg 6-BA以及1% CaCl2+15 mg/kg 6-BA对枣果进行喷雾处理，能降低采后枣果的PG活性和PPO活性，抑制果肉硬度的下降和果肉的褐变进程。1% CaCl2处理可使赞皇大枣贮藏末期的果肉硬度比对照增加1.2 kg/cm2；1% CaCl2+15 mg/kg 6-BA处理可使赞皇大枣贮藏末期的果肉硬度增加1.5 kg/cm2。15 mg/kg 6-BA处理对枣果软化褐变及PG活性、PPO活性有一定影响，但效果不及CaCl2处理。
|
| 关 键 词： | 鲜枣 CaCl2溶液 6-BA 果肉硬度 PG PPO |
| 文章编号： | 1002-6819(2001)05-0127-04 |
| 收稿时间： | 4/3/2001 12:00:00 AM |
| 修稿时间： | 2001年4月3日 |
Effect of CaCl2 and 6-BA Solution on Softening, Browning and Activity of Related Enzyme in Postharvest Jujube Fruits |
| |
| Abstract: | The relation between softening browning and activity of PG and PPO as well as the effect of CaCl2 and 6-BA solution preharvest treatments on softening browning, PG activity and PPO activity in postharvest Zanhuang Chinese date were studied. The results showed that the flesh hardness gradually decreased and negatively correlated with storage time significantly; the PG activity fluctuated during the storage periods and had little relation with softening. During storage periods, the browning index and PPO activity increased, the PPO activity related to the flesh browning. 1% CaCl2, 15 mg/kg 6-BA and 1% CaCl2+15 mg/kg 6-BA were sprayed on jujube fruits before harvest. The PG and PPO activity were all reduced, the decline of flesh hardness and course of browning were restrained by the treatments. With 1% CaCl2 treatment the flesh hardness of Zanhuang Chinese date was improved 1.2 kg/cm2, with 1% CaCl2+15 mg/kg 6-BA treatment the flesh hardness was increased 1.5 kg/cm2 at the last stage of storage. The effect of 15 mg/kg 6-BA on the flesh hardness, PG activity and PPO activity was lower than that of CaCl2 treatment. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《农业工程学报》浏览原始摘要信息 |
| 点击此处可从《农业工程学报》下载免费的PDF全文 |
