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Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ / v.21, no.1, 2008³â, pp.28-35
»êµþ³ª¹«ÀÇ ºÎÀ§º° ÃßÃâ¹° ¹× ¿ë¸Å ºÐȹ¹°ÀÇ »ý¸®È°¼º ºñ±³
( Comparison of Biological Activities of Extracts from Different Parts and Solvent Fractions in Cornus kousa Buerg )
±è¿µÁß;Á¤Áø¾Æ;±Ç¼öÇö;ÀÌöÈñ; ÃæºÏ´ëÇб³ ¿ø¿¹°úÇаú;ÃæºÏ´ëÇб³ ¿ø¿¹°úÇаú;ÃæºÏ´ëÇб³ ¿ø¿¹°úÇаú;ÃæºÏ´ëÇб³ ¿ø¿¹°úÇаú;
 
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»êµþ³ª¹«ÀÇ ²É, ÀÙ, ¿­¸Å, °¡Áö µî ºÎÀ§º° ÃßÃâ¹°°ú ¿ë¸Å ºÐȹ¹°À» Á¦Á¶ÇÏ¿© °¢°¢ÀÇ »ý¸®È°¼º¹°Áú ÇÔ·®, Ç×»êȭȰ¼º ±×¸®°í tyrosinase ¾ïÁ¦È°¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ÃÑ Æú¸®Æä³î ¹× Çö󺸳ëÀ̵å ÇÔ·®Àº ´Ù¸¥ ºÎÀ§º¸´Ù ²É ÃßÃâ¹°¿¡¼­ 169.638 $mg{cdot}g^{-1}$°ú 25.418 $mg{cdot}g^{-1}$À¸·Î °¡Àå ³ô°Ô ³ªÅ¸³µ´Ù. DPPH ¹× ABTS ¶óµðÄ® ¼Ò°ÅȰ¼º°ú $Fe^{2+}$ chelating È¿°ú ¿ª½Ã ²É ÃßÃâ¹°¿¡¼­ °¡Àå ¿ì¼öÇÑ °ÍÀ¸·Î Á¶»çµÇ¾ú´Ù. Ferric thiocyante ¹æ¹ýÀ¸·Î ÁöÁú °ú»êÈ­ ¾ïÁ¦È¿°ú¸¦ Á¶»çÇÑ °á°ú, ²É, ÀÙ, °¡ÁöÀÇ °æ¿ì´Â BHTº¸´Ù ³ôÀº ¾ïÁ¦È°¼ºÀ» º¸¿´´Ù. Tyrosinase ¾ïÁ¦È°¼ºÀº ¿ÀÁ÷ ²É ÃßÃâ¹°¿¡¼­¸¸ ³ªÅ¸³µ´Ù. ³ôÀº »ý¸®È°¼ºÀ» º¸ÀÎ ²É°ú ÀÙ ÃßÃâ¹°À» n-hexane, chloroform, ethyl acetate, n-butanolÀÇ ¼øÀ¸·Î ¿ë¸ÅºÐȹÇÑ °á°ú, Æú¸®Æä³îÇÔ·®Àº ²É°ú ÀÙ ¸ðµÎ water ºÐȹ¹°¿¡¼­ °¢°¢ 67.006 $mg{cdot}g^{-1}$ ¹× 66.739 $mg{cdot}g^{-1}$À¸·Î °¡Àå ¸¹¾Ò´Ù. ¹Ý¸é Çö󺸳ëÀ̵å ÇÔ·®Àº ²ÉÀÇ °æ¿ì ethyl acetate ºÐȹ¹°¿¡¼­ °¡Àå ³ô¾Ò°í, ÀÙÀº butanol ºÐȹ¹°¿¡¼­ °¡Àå ³ô°Ô Á¶»çµÇ¾ú´Ù. ÀÚÀ¯¶óµðÄ® ¼Ò°ÅȰ¼ºÀº ²É ÃßÃâ¹°ÀÇ °æ¿ì ethyl acetate ºÐȹ¹°¿¡¼­ °¡Àå ³ô¾Ò°í ÀÙ ÃßÃâ¹°Àº butanol ºÐȹ¹°¿¡¼­ °¡Àå ³ô°Ô Á¶»çµÇ¾ú´Ù. ²É°ú ÀÙÀÇ °¢ ¿ë¸Å ºÐȹ¹°ÀÌ tyrosinaseÀÇ È°¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» Á¶»çÇÑ °á°ú, ¸ðµÎ water ºÐȹ¹°¿¡¼­ °¢°¢ 49.24% ¹× 31.8%·Î °¡Àå ³ôÀº ¾ïÁ¦ È¿°ú¸¦ º¸¿´´Ù.
Several extracts of different parts and solvent fractions of Cornus kousa were obtained and their functional material contents, antioxidant activities and tyrosinase inhibition effects were determined. Content of total polyphenols and flavonoids contents in flower were 169.638 $mg{cdot}g^{-1}$ and 25.418 $mg{cdot}g^{-1}$, respectively, which were much higher than those of other parts. Also, flower extracts showed the strongest effects on DPPH and ABTS radicals scavenging and ferrous ion chelating. In flower, leaf, and stem extracts, inhibition effects on peroxidation of linoleic acid determined by ferric thiocyanate(FTC) method were higher than a synthetic antioxidant, BHT. Tyrosinase inhibition activities were shown only in flower extract. Flower and leaf extracts, showing high biological activities in various system, were successively reextracted with n-hexane, chloroform, ethylacetate and n-butanol. Total polyphenol contents of water fractions were higher than any other solvent fractions in both flower and leaf, 67.006 $mg{cdot}g^{-1}$ and 67.739 $mg{cdot}g^{-1}$, respectively. But total flavonoid contents were higher in ethyl acetate fraction for flower extract and butanol fraction for leaf extract. Among the solvent fractions, the highest efficiency of free radical scavenging activities was obtained in ethyl acetate fraction for flower extract and n-butanol fraction for leaf extract. Tyrosinase inhibition activities were higher in water fraction for both flower and leaf extracts, 49.24% and 31.8%, respectively.
 
Ű¿öµå
Functional materials;Antioxidant activities;Tyrosinase inhibition;Polyphenols;Flavonoids;
 
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸÁö / v.21, no.1, 2008³â, pp.28-35
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
ISSN : 1226-3591
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200810737156285)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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