|
|
|
Çѱ¹È¯°æ»ý¹°ÇÐȸ / v.22, no.1, 2004³â, pp.167-170
|
Trichoderma harzianum SJG-99721ÀÇ Ã¼¿Ü ºÐºñ chitinase »ý»ê¿¡ ¹ÌÄ¡´Â »ý¹° ¹ÝÀÀ±â¿¡¼ÀÇ ¹ÝÀÀ ÃÖÀûÈ ¿¬±¸
( Optimization of Environmental Parameters for Extracellular Chitinase Production by Trichoderma harzianum SJG-99721 in Bioreactor ) |
| ÀÌÈ£¿ë; »óÁö´ëÇб³ »ý¸í°úÇаú;
|
|
|
 |
|
| |
| ÃÊ ·Ï |
| Phytopathogenic fungiµé¿¡ ´ëÇØ ¸Å¿ì °ø°ÝÀûÀÎ Trichoderma hurzianumÀº ´Ù¸¥ °õÆÎÀ̵éÀÇ ¼¼Æ÷º® ÁÖ¼ººÐÀÎ chitinÀ» ºÐÇØÇÏ´Â extracellualr chitinase¸¦ ºÐºñÇϱ⠶§¹®¿¡ ¸Å¿ì È¿À²ÀûÀÎ biocontrol agent·Î »ç¿ëÇÒ ¼ö ÀÖ´Ù. Trichoderma harzianumÀÇ »ý¹°ÇÐÀû Á¦¾î ±â´ÉÀ» ÀÌ¿ëÇϱâ À§ÇÏ¿© extracellualr chitinaseÀÇ »ý»ê¼ºÀ» ³ôÀÏ ¼ö ÀÖ´Â batch¸ðµå¿¡¼ÀÇ ÀûÁ¤ ȯ°æÀ» ã´Â ÀÏÀº ¸Å¿ì º¹ÀâÇÏ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀÌ ¹Ù·Î self-directing optimizationÀÌ´Ù ÀÌ ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© ½ÇÇèÇÑ °á°ú 6¡7Â÷·ÊÀÇ ½ÇÇ踸À¸·Î ÃÖÀûÀÇ ¿Âµµ ȤÀº pH ¹× Æø±âÀ²°ú ±³¹Ý¾çÀ» ±¸ÇÒ ¼ö ÀÖ¾ú´Ù. ±× °á°ú ¿Âµµ $32^{circ}C$, pH4.9, Æø±âÀ² 3.22 ¥é, ±³¹ÝÀ² 225 rpm¿¡¼ chitinaseÀÇ ÃÖ´ë »ý»ê·® 16.825 U¸¦ ³ªÅ¸³»¾ú´Ù. ÀÌ´Â ¿Âµµ $25^{circ}C$, pH 5, Æø±âÀ² 1l, ±³¹ÝÀ² 150 rpm¿¡¼ ³ªÅ¸³ chitinase »ý»ê·® 4.221 U¿¡ ºñ±³Çϸé 3.99¹è Áõ°¡ÇÑ È¿°ú¸¦ ³ªÅ¸³»°í ÀÖ´Ù. À̷μ self-directing optimization¹æ¹ýÀ» ÅëÇÑ ÃÖÀûÈ ±â¼úÀÌ È¿¼Ò »ý»ê ±â¼ú¿¡ ÀÖ¾î ±× ÃÖÀûÈ °úÁ¤À» ´ÜÃà½Ã۰í ÃÖÁ¾ °úÁ¤¿¡ µµ´ÞÇÏ´Â »õ·Î¿î ±â¼ú·Î Àû¿ëÇÒ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. |
|
| A self-directing optimization procedure was applied to determine the best environmental factors in operating the bioreactor. The self-directing optimization process was employed to determine the best conditional combination of multi parameters, pH, temperature, aeration rate and mixing rate toy maximal production of chitinase by Trichoderma harzianum SJG-99721 in batch mode fermentation. Among these factors, the parameters of pH and aeration rate were found to be particularly important on mycellial growth and chitinase activity. pH 4.89, an aeration rate of 3.22 ¥é per minute and an agitation rate of 225 rpm was found to be the best combination. By the optimization, chitinase activity was dramatically increased from an initial value of 4.221 U under basic conditions to n final value of 16.825 U. |
| |
| Ű¿öµå |
| Chitinase activity;Self-directing optimization;Trichoderma harzianum; |
| |
|
|
 |
|
ȯ°æ»ý¹° / v.22, no.1, 2004³â, pp.167-170
Çѱ¹È¯°æ»ý¹°ÇÐȸ
ISSN : 1226-9999
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922293258)
¾ð¾î : Çѱ¹¾î |
|
| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
|
|
|
|
|
|