B - bacteriocin 中文 - EN166

bacteriocin n.＝ bacillin.

bacteriological
Antimicrobial effect of the bacteriocin produced by r21 - 4 is studied in the food systems . the results show that the conspicuous antimicrobial effect in the preservation of fresh milk . the samples were stored under 37 and the bacteria concentration in the sample with bacteriocin was 3 - 5 order less than the sample without bacteriocin 考察了r21 - 4產生的細菌素用有機溶劑萃取制備的方法及其在食品中的防腐效果，結果表明，細菌素在消毒鮮牛奶的保藏中具有明顯的防腐效果，樣品添加細菌素在37保存24h - 48h后與對照相比細菌總數相差3 - 5個數量級，防腐效果顯著。
Two protein peaks can be obtained by bio - gel p - 6 chromatography and both peaks have antimicrobial activity . so the bacteriocin is consisted of two proteins with different mw . only one protein with larger mw can be detected through tricine - sds - page , and its mw is about 8 , 570da 采用30硫酸銨就能完全把發酵液中的細菌素全部沉淀，通過生物膠bio - gelp - 6層析發現細菌素被分離出兩條抗菌蛋白峰，這表明r21 - 4產生的細菌素是由兩種不同分子量的蛋白質組成的，通過tricine - sds - page檢測，只能檢測到一條分子量相對較大的細菌素，分子量在8 , 570da左右。
In the research field of food preservation , an intense interest for scientists is focused on the isolation of antimicrobial substances from microbial metabolites . natural biopreservatives derived from traditional fermented foods are generally recognized as safe . in this paper , one strain screened for its safety and broad antimicrobial spectrum and its antimicrobial substance - - bacteriocin are studied in detail 本文從傳統的發酵食品中篩選出一株安全、具有廣譜抗菌活性的芽孢桿菌，并對其抗菌活性物質細菌素進行分析，為微生物天然生物防腐劑的開發以及在食品中的應用提供理論依據。
Study on the isolated bacteriocin ' s property shows that the bacteriocin has good stability against temperature and ph . the antimicrobial activity is not influenced disposed for 10 minutes under 80 , and only 13 % loss of activity is suffered under the temperature of 100 for 10min 對分離出的細菌素的性質研究表明，細菌素具有較好的熱穩定性和酸堿穩定性，在溫度80處理10min對活性沒有影響， 100處理10min活性僅損失13 ，在ph3 - 10的范圍內活性變化不大。
A bacteriocin with a broad spectrum activity produced by grapevine crown gall biocontrol strain e 淀粉酶產生菌的分離鑒定及發酵條件與酶性質研究
Mode of action of plantaricin l - 1 , an antilisteria bacteriocin produced by lactobacillus plantarum 1對單核細胞增生李斯特氏菌作用機理的研究
Isolation and purification of the bacteriocin are studied 優化后的抗菌活性明顯增強。