?url_ver=Z39.88-2004&rft_id=1317011050&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=%0D%0AISOLASI+DAN+IDENTIFIKASI+SENYAWA+FENOLIK+DARI+KULIT+BATANG+TUMBUHAN+TURI+PUTIH+(Sesbania+grandiflora)+SERTA+UJI+AKTIVITAS+ANTIBAKTERI%0D%0A&rft.creator=+NITA+YULIYAN+%2C+1317011050&rft.subject=QD+Chemistry&rft.description=Pada+penelitian+ini+telah+dilakukan+isolasi+dan+identifikasi+senyawa+fenolik+dari+kulit+batang+tumbuhan+turi+putih+(S.+grandiflora)+serta+uji+aktivitas+antibakteri.+Tahapan+penelitian+yang+dilakukan+yaitu+preparasi+sampel%2C+ekstraksi%2C+isolasi%2C+pemurnian+secara+berulang+menggunakan+metode+KLT%2C+KCV%2C+KK%2C+dan+analisis+struktur+senyawa+ditentukan+dengan+metode+spektroskopi+UV-Vis%2C+IR%2C+dan+NMR.+Dua+senyawa+murni%2C+sesbagrandiflorain+A+and+B++berhasil+diisolasi+dari+kulit+batang+S.+grandiflora+bersama+dengan+satu+senyawa+yang+tidak+diketahui+(kode%3AN-8).+Senyawa+(N-8)+(39+mg)++berupa+kristal+berwarna+kuning+dengan+titik+leleh+220%2C1-222%2C8oC.+Berdasarkan+data+spektroskopi+N-8%2C+senyawa+ini+diduga+sebagai+dimer+dari+2-arilbenzofuran+yang+terkait+dengan+struktur+senyawa+yang+telah+diisolasi+sebelumnya.+Namun%2C+penentuan+struktur+N-8+masih+dalam+proses.+Aktivitas+antibakteri+N-8+terhadap+bakteri+E.+coli+menunjukkan+bahwa+senyawa+ini+memiliki+aktivitas+sedang+dengan+zona+hambat+10+dan+8.6+mm+pada+konsentrasi+200+ppm+dan+100+ppm.%0D%0AKata+Kunci+%3A++sesbagrandiflorain+A+and+B+%2C+arilbenzofuran%2C+Sesbania+grandiflora+%2C+antibakteri%2C+E.+coli%2C+senyawa+fenolik.%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0A%0D%0AThis+study+has+been+carried+out+on+the+isolation+and+identification+of+phenolic%0D%0Acompounds+from+the+stem+bark+of+white+turi+(S.+grandiflora)+as+well+as+their+antibacterial+activity.+This+research+was+done+by+several+steps+including+sample+preparation%2C+extraction%2C+isolation+and+purification+using+TLC%2C+VLC%2C+CC%2C+and+structure+analyses+by+spectroscopic+method+such+as+UV-Vis%2C+IR%2C+and+NMR+spectroscopies.+Two+purified+compounds%2C+sesbagrandiflorain+A+and+B+were+succesfully+isolated+from+S.+grandiflora+stem+bark+together+with+one+unknown+constituent+(code%3AN-8).+The+compound+(N-8)+(39+mg)+was+afforded+as+a+yellow+crystal+with+a+melting+point+of+220.1-222.8%C2%B0C.+Based+on+the+spectroscopic+evidence+of+N-8%2C+this+compound+was+predicted+as+dimeric+of+2-arylbenzofuran+which+was+suggested+related+with+the+structure+of+previous+isolated+compounds.+However%2C+the+structure+elucidation++of+N-8+is+still+in+progress.+The+antibacterial+activity+of+N-8+against+E.coli+exhibited+that++this+compound+has+moderat+activity+with+inhibition+zone+of+10+and+8.6+mm+at++the+concentration+of+200+ppm+and+100+ppm%2C+respectively.+%0D%0A%0D%0AKeywords%3A++sesbagrandiflorain+A+and+B+%2C+arylbenzofuran%2C+Sesbania+grandiflora%2C+antibacterial%2C+E.coli%2C+++phenolic++compounds.%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2018-02-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F30984%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F30984%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F30984%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520%2520PEMBAHASAN.pdf&rft.identifier=+++NITA+YULIYAN+%2C+1317011050++(2018)++ISOLASI+DAN+IDENTIFIKASI+SENYAWA+FENOLIK+DARI+KULIT+BATANG+TUMBUHAN+TURI+PUTIH+(Sesbania+grandiflora)+SERTA+UJI+AKTIVITAS+ANTIBAKTERI.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F30984%2F