| 贮藏山楂果胶酶活性及果胶含量的变化规律 |
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| 引用本文： | 王愈,李里特,郝建雄.贮藏山楂果胶酶活性及果胶含量的变化规律[J].农产品加工．学刊,2006(2):11-12,15. |
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| 作者姓名： | 王愈 李里特 郝建雄 |
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| 作者单位： | 1. 山西农业大学食品科学与工程学院,山西,太谷,030801;中国农业大学食品科学与营养工程学院,北京,100083
2. 中国农业大学食品科学与营养工程学院,北京,100083 |
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| 摘 要： | 对贮藏在冷库简易气调、适温冷藏、室温气调、室温存放的山楂果胶含量及相关果胶酶(包括多聚半乳糖醛酸酶PG和果胶甲酯酶PE)活性变化规律进行了探讨。结果发现,在贮藏过程中,山楂PG酶活性有一个峰值较低的跃变过程,随着跃变的出现,果实硬度明显下降;适温冷藏和室温气调的山楂PG酶活性具有极其相近的变化规律。山楂PE酶活性没有跃变过程,总的趋势是呈现由高到低逐渐下降的变化规律;适温冷藏和室温气调的山楂PE酶活性也具有极其相近的变化规律。山楂果胶含量随贮藏时间的延长逐渐减少,不同贮藏条件下的山楂果胶含量减少的幅度各异。
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| 关 键 词： | 山楂贮藏 果胶酶活性 果胶含量 |
| 文章编号： | 1671-9646（2006）02-0011-02 |
| 收稿时间： | 2006-01-12 |
| 修稿时间： | 2006年1月12日 |
Changes of Hawthorn Pectase Activity and Pectin Content During Storage |
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| Wang Yu,Li Lite,Hao Jianxiong.Changes of Hawthorn Pectase Activity and Pectin Content During Storage[J].Nongchanpin Jlagong.Xuekan,2006(2):11-12,15. |
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| Authors: | Wang Yu Li Lite Hao Jianxiong |
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| Abstract: | Polygalacturonase(PG),pectinesterase(PE)activity and water-soluble pectin content of hawthorn fruit were determined,when the fruits were stored by refrigerated storage and gas storage. The results indicated that a small peak in PG activity was measured during storage. Following this advent,fruit firmness was declined dramatically during optimum temperature storage and ambient gas storage. Compared with changes of PG activity,hawthorn PE activity was gradually reduced. Similar changes in PE activity were observed between refrigerated storage and gas storage. Water-soluble pectin content of hawthorn fruit was reduced slowly day-to-day during storage,and different storage condition brought about different changes in pectin content. |
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| Keywords: | hawthorn storage pectase activity pectin content |
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