13.07.2015 Views

REVIEW: Ellagitanin; Biosintesis, Isolasi, dan Aktivitas Biologi

REVIEW: Ellagitanin; Biosintesis, Isolasi, dan Aktivitas Biologi

REVIEW: Ellagitanin; Biosintesis, Isolasi, dan Aktivitas Biologi

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HERNAWAN <strong>dan</strong> SETYAWAN – <strong>Ellagitanin</strong> 27OHOHOH 2 NOHHO O O -HO O O -(10) L-fenilalanin (11) kafeatOH(13) 3,4,5 trihidroksisinnamatCOO -HO O OH- OH 2 N OHOHO(9) arogenate (14) protokatekuatHOOHOO -HO(1) asam galatHOHOHOOOHHOOHOOO -(8) shikimat (12) 3-dehidroshikimatGambar 1. Jalur pembentukan asam galat (Gross, 1992).HOOHOOHHO(1) asam galatHOHOOHOOCOH O(16) -glukogallinOHOHOHOH+ 4 molekul galloilOOHOHOHOPPOOOONHNOOH(15) uridine 5-difosfatOHHOHOOHELLAGITANIN-n [H] ataudehidrogenasi-n [H] ataudehidrogenasiHOHOHO HOHOHO OHOOOOHOOO OHOHHO OHHO OHOHdimmer, oligomer(17) 1,2,3,4,6-pentagalloilglukosaGambar 2. <strong>Biosintesis</strong> ellagitanin (Gross, 1992).

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