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題名 | 以芥菜汁進行乳酸發酵過程中之色澤變化= |
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作者 | 范晉嘉; 顏國欽; 李洪潮; |
期刊 | 嘉南學報 |
出版日期 | 19911200 |
卷期 | 17 1991.12[民80.12] |
頁次 | 頁61-69 |
分類號 | 463.76 |
語文 | chi |
關鍵詞 | 色澤; 乳酸; 芥菜汁; 發酵; 過程; 變化; |
中文摘要 | 以芥菜榨汁及加入乳酸菌「Lactobacillus plantarum,CCRC 12942)進行乳 酸發酵,並測定發酵過程中芥菜汁之各項生化變化。凡接菌者,其pH值降低, 且有較高之可滴定酸度及較大之糖分變化。對照組中之抗壞血酸含量改變最大, 而殺菁組之含量變化最小。殺青組中之總酚量變化最小,且無PPO及POD酵素活 性。對照粗中有最大之PPO及POD酵素活性,而發酵末期之總酚含量則最低。由 各試驗組之以L,a及b值測定及上述各項生化變化結果,推測芥菜汁進行乳酸發酵 過程中之色澤變化,乃與酵素性或抗壞血酸分解參與之褐變反應有關。 |
英文摘要 | Mustard juices prepared from mustard vegetables were inoculated with the culture ofLactobacillus plantarum CCRC 12942 and various biochemical changes in mustard juice weredetermined during lactic acid fermentation. The pH dropped down, higher titratable acidity andsignificant changes of sugar content were found in all the inoculated trials. The content ofascorbic acid in the control trials changed significantly. However, the least changes of thecontents of ascorbic acid and total phenolics were found, and activities of PPO and POD werenot detected in the blanched trials. The study of mustard brine fermentation by lactic acidbacteria indicated that the color changes of the juice was directly related to enzymatic browningand the degradation of ascorbic acid might also contribute partially to the browning reaction. |
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