Taiwan Agricultural Research Institute Council of Agriculture, Executive Yuan
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(68(4):341-345)Antibacterial Photosensitive Activity of Chlorophyll Derivatives
No full text結合光敏劑與特定光源產生活性氧分子，應用於抑制微生物生長，乃近年常見的抑菌研發技術。本研究將菠菜葉綠素降解，製備成具光敏性的衍生物。經高效液相層析儀 (high performance liquid chromatography; HPLC) 分析顯示，衍生物主要成分為脫鎂葉綠素或脫鎂葉綠酸。經添加於小鼠胚胎纖維細胞，以發光二極體(light-emitting diode; LED) 藍光 (光量子束密度560 J m-2 s-1) 照射60 min 或添加於痤瘡桿菌以280 J m-2 s-1 照射10 min，或於葡萄球菌照射30 min，均可增強光過敏反應，而造成細胞或細菌存活率下降。研究顯示，葉綠素衍生物具有光敏性，可應用為抗菌光敏劑。
The combination of a photosensitizer and a specific light source to generate reactive oxygen species for the inhibition of microbial growth is a developing antibacterial technique. In this study, the chlorophyll of spinach was degraded to prepare photosensitizer chlorophyll derivatives. The results of high performance liquid chromatography (HPLC) analysis showed that the main component was pheophytin or pheophorbide. The photosensitivity could be enhanced and resulted in the decrease of survival rate when pheophytin or pheophorbide was added to Sandos inbred mice thioguanine/ouabain-resistant (STO) cells, Propionibacterium granulosum and Staphylococcus sp. (BCRC10783), with light-emitting diode (LED) blue light at illuminance of 5.6 J m-2 60 min-1, 2.8 J m-2 10 min-1 and 2.8 J m-2 30 min-1, respectively. The results indicate that chlorophyll derivatives have the photosensitivity property and can be applied as an antibacterial photosensitizer
Manual of Fruit Trees In Taiwan
No full text本書所載果樹，凡102種，內詳記91種，附記11種，插圖140帙、附表79幅；其中半為台灣閩粵諸省普遍栽培者，半係新引進種，在台灣試種有年，而前途有望者。各種果樹分概說、性狀、用途、栽培四部分。記述內容多係本省各試驗場所歷年研究結果，如嘉義分所記載，多為最近材料，故余樂而促其成，藉以頁獻社會，尚希本省青果界園藝界學術界諸前輩對本書不吝指正
