查詢結果分析
來源資料
相關文獻
- 不同生長期豌豆植株及不同成熟度豌豆莢各部位中果膠酯酶同功酶活性之消長
- 豌豆莢顏色與質地保存之殺菁條件的探討
- 電泳膠片上果膠酯酶之快速活性染色法
- 糙莖鐵炮百合之同功酶遺傳分化
- Notes on Allozyme Variation in Lycoris Radiata (Amaryllidaceae) from Korea
- Glycine Formosana Hosokawa in Taiwan: Pod Morphology, Allozyme, and DNA Polymorphism
- 茶樹酯酶同功酶與親緣關係之研究
- Stomach and Duodenal Alcohol and Aldehyde Dehydrogenase Isozymes in Chinese
- 醬筍製程中質地軟化機制之研究
- Chitinase Isoenzymes in Near-Isogenic Wheat Lines Challenged with Russian Wheat Aphid, Exogenous Ethylene, and Mechanical Wounding
頁籤選單縮合
題 名 | 不同生長期豌豆植株及不同成熟度豌豆莢各部位中果膠酯酶同功酶活性之消長=Studies on Changes in the Activity of Pectinesterase Isozymes in Different Parts of Pea Plants and Pea Pods at Different Stages of Growth and Maturation |
---|---|
作 者 | 江啟銘; 張為憲; | 書刊名 | 食品科學 |
卷 期 | 25:1 1998.02[民87.02] |
頁 次 | 頁59-71 |
分類號 | 341.91 |
關鍵詞 | 果膠酯酶; 同功酶; 豌豆莢; 豌豆植株; Pectinesterase; PE; Isozyme; Pea pod; Pea plant; |
語 文 | 中文(Chinese) |
中文摘要 | 以不同生長期豌豆植株及不同成熟度豌豆莢各部位為材料,測定果膠酯?(Pectinesterase;簡稱PE)總活性及各 PE 同功?活性之消長變化。除了豌豆莢之外,豌豆植株之 PE 總活性以根部最高,且隨著生長期之增長有增高之趨勢。葉及莖的部分則 PE總活性雖較根部低,但大體上亦隨著生長期之增長而增高。 在不同成熟度豌豆莢之 PE 總活性方面,發現豌豆花之 PE 總活性和豌豆植株各個部位並無明顯差異,但在長成豌豆莢後,其 PE 總活性隨著成熟度提高而顯著增高,而至成熟後開始降低。若以豌豆莢之不同部位區分,則發現去仁豌豆莢皮之 PE 總活性佔 98%以上,而豌豆仁僅佔極小部分。在整個生長週期,若就各部位之 PE 總活性而言,則以豌豆莢之PE總活性最高,較豌豆植株其他各部位之 PE 總活性高 8~20 倍。 以氯化鈉溶液抽取,並經硫酸銨沈澱及 CM-Sepharose CL-6B 陽離于交換層析之純化,即可分離出五種 PE 同功?,以溶析出來的先後次序取名為 PE1,PE2,PE3,PE4及PE5。在豌豆植株,各PF同功?之種類數目以及活性比率,都隨生長期與植物部位之不同而有很大的變化。根部缺乏 PE1,則與豌豆芽、大豆芽及白化敏豆芽根部相同。PE5 在豌豆整個生長週期之活性皆非常低。豌豆莢 PE 同功?以 PE3 為主,其活性約佔總活性之 97% 以上、而其他 PE 同功?之活性則僅佔極小部分。豌豆莢之 PE,除了其活性遠高於植株其他部份之活性外,且具有易於純化之優點。 |
英文摘要 | Samples from different parts of pea (Pisum sativum L.) plants and pea pods at different stages of growth or maturation were used to study changes in the total activity of pectinesterase (PE) as well as the activities of each PE isozyme. With the exception of pea pods, the total PE activity of the root was the highest as compared to that of other parts, such as the leaves and stem of the plant. The total PE activities in all parts of the pea plants as well as pea pods increased progressively with the growth or maturation stage. There was no significant difference in total PE activity between the pea flowers and other parts of the pea plants. After the pea flowers grew into pea pods, however, the total PE activity increased much more rapidly in the pea pods during maturation than in any other part of the pea plants, and then began to decrease after complete maturation. When total PE activity was compared for different parts of the pea pods, it was found that over 98% of the total PE activity was present in the shell, with PE3 as the predominant isozyme, while the pea seeds contained only a small portion of the total PE activity. Therefore, the total PE activity was highest in the pea pods among all the parts of the plants throughout the entire growth stage, being 8-20 times higher than that other parts of the plants. By extracting with sodium chloride solution, precipitating with ammonium sulfate, and finally separating by CM-Sepharose CL-6B cation exchange chromatography, five PE isozymes were separated and named PEI, PE2, PE3,PE4 and PE5 according to the sequence of elution. It was found, during the growth stage of the pea plants, that the change in PE activity was different not only for different parts of the plants, but also for different isozymes. PE1 was absent in the root of the pea plants, and the same situation was found in the root of the pea sprouts, soy bean sprouts and etiolated snap bean sprouts. The activity of PE5 was very low during the entire stage of growth as compared to the activity of PE3. The shell of the pea pods is a good source for the preparation of PE not only because of its high PE activity, but also because it is easy to purify. |
本系統中英文摘要資訊取自各篇刊載內容。