?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGUJIAN+TOTAL+FENOLIK%2C+ANTIOKSIDAN%2C+DAN+ANTIBAKTERI%2C%0D%0AFRAKSI+ETIL+ASETAT+DAUN+RAMBUTAN+(Nephelium+lappaceum+L.)%0D%0AMENGGUNAKAN+METODE+Ultrasound-Assisted+Extraction&rft.creator=Suci+%2C+Ainu+Sella%09&rft.subject=610+Ilmu+kedokteran%2C+ilmu+pengobatan+dan+ilmu+kesehatan&rft.description=Latar+Belakang%3A+Senyawa+metabolit+sekunder+yang+dihasilkan+tanaman+pada%0D%0Asebagian+besar+kasus+dijadikan+target+isolasi+senyawa+pada+suatu+percobaan+untuk%0D%0Amendapatkan+efek+farmakologis+tertentu.+Daun+rambutan+(Nephelium+lappaceum%0D%0AL.)+memiliki+berbagai+sifat+farmakologis+di+antaranya+sebagai+antibakteri+dan%0D%0Aantioksidan.+Sifat+farmakologis+tanaman+telah+terbukti+dipengaruhi+oleh+senyawa%0D%0Ametabolit+sekunder+yang+terkandung.+Senyawa+fenolik+dan+flavonoid+merupakan%0D%0Asenyawa+yang+dikenal+memiliki+aktivitas+antibakteri+dan+antioksidan.+Banyak%0D%0Afaktor+yang+mempengaruhi+jenis+dan+jumlah+kandungan+senyawa+dalam+ekstrak%0D%0Aseperti+metode%2C+pelarut%2C+suhu%2C+dan+waktu+ekstraksi.+Metode+Ultrasound-Assisted%0D%0AExtraction+digunakan+sebagai+sarana+meningkatkan+efisiensi+ekstrak+senyawa%0D%0Ayang+diinginkan+dan+sering+digunakan+dalam+ekstraksi+bahan+alam+yang%0D%0Athermolabile.%0D%0AMetode%3A+Penelitian+ini+diawali+dengan+ekstraksi+daun+rambutan+menggunakan%0D%0Ametode+Ultrasound-Assisted+Extraction+lalu+dilanjutkan+dengan+fraksinasi%0D%0Abertingkat+untuk+mendapatkan+fraksi+etil+asetat.+Fraksi+etil+asetat+yang+dihasilkan%0D%0Adiuji+senyawa+metabolit+sekunder+yang+terkandung%2C+kadar+total+fenolik%2C+kadar+total%0D%0Aflavonoid%2C+aktivitas+antioksidan+metode+DPPH%2C+dan+daya+hambat+antibakteri%0D%0Aterhadap+bakteri+Staphylococcus+aureus+dan+Pseudomonas+aeruginosa+metode%0D%0Adifusi+silinder.%0D%0AHasil%3A+Senyawa+metabolit+sekunder+yang+terkandung+dalam+daun+rambutan+adalah%0D%0Asaponin%2C+alkaloid%2C+fenolik%2C+flavonoid%2C+tanin%2C+dan+triterpenoid.+Kadar+total+fenolik%0D%0A324%2C41+mg+GAE%2Fg.+Kadar+total+flavonoid+145%2C82+mg+QE%2Fg.+Nilai+IC5019%2C056%0D%0Amg%2FL.+Diameter+zona+hambat+terhadap+bakteri+Staphylococcus+aureus+pada%0D%0Akonsentrasi+20%25%2C+10%25%2C+5%25%2C+dan+2%2C5%25+berturut-turut+16%2C33+mm%2C+11%2C33+mm%2C+8%0D%0Amm%2C+dan+4%2C16+mm.+Diameter+zona+hambat+terhadap+bakteri+Pseudomonas%0D%0Aaeruginosa+dimulai+pada+konsentrasi+20%25+yaitu+7+mm.%0D%0ASimpulan%3A+Fraksi+etil+asetat+daun+rambutan+memiliki+aktivitas+antioksidan+dan%0D%0Aantibakteri+yang+baik.%0D%0AKata+kunci%3A+Fenolik%2C+flavonoid%2C+antioksidan%2C+antibakteri%2C+daun+rambutan%0D%0A%0D%0ABackground%3A+In+most+cases%2C+secondary+metabolite+compounds+produced+by+plants%0D%0Aare+used+as+targets+for+compound+isolation+in+experiments+to+obtain+certain%0D%0Apharmacological+effects.+Rambutan+leaves+(Nephelium+lappaceum+L.)+have%0D%0Avarious+pharmacological+properties%2C+including+antibacterial+and+antioxidant%0D%0Aproperties.+The+pharmacological+properties+of+plants+have+been+proven+to+be%0D%0Ainfluenced+by+the+secondary+metabolite+compounds+contained.+Phenolic%0D%0Acompounds+and+flavonoids+are+compounds+known+to+have+antibacterial+and%0D%0Aantioxidant+activity.+Many+factors+influence+the+type+and+amount+of+compounds+in%0D%0Athe+extract%2C+such+as+method%2C+solvent%2C+temperature+and+extraction+time.+The%0D%0AUltrasound-Assisted+Extraction+method+is+used+as+a+means+of+increasing+the%0D%0Aefficiency+of+extracting+desired+compounds+and+is+often+used+in+the+extraction+of%0D%0Athermolabile+natural+materials.%0D%0AMethod%3A+This+research+began+with+extraction+of+rambutan+leaves+using+the%0D%0AUltrasound-Assisted+Extraction+method+and+then+continued+with+multilevel%0D%0Afractionation+to+obtain+the+ethyl+acetate+fraction.+The+resulting+ethyl+acetate%0D%0Afraction+was+tested+for+the+secondary+metabolite+compounds+contained%2C+total%0D%0Aphenolic+content%2C+total+flavonoid+content%2C+antioxidant+activity+using+the+DPPH%0D%0Amethod%2C+and+antibacterial+inhibitory+power+against+the+bacteria+Staphylococcus%0D%0Aaureus+and+Pseudomonas+aeruginosa+using+the+cylindrical+diffusion+method.%0D%0AResult%3A+The+secondary+metabolite+compounds+contained+in+rambutan+leaves+are%0D%0Asaponins%2C+alkaloids%2C+phenolics%2C+flavonoids%2C+tannins+and+triterpenoids.+Total%0D%0Aphenolic+content+324%2C41+mg+GAE%2Fg.+Total+flavonoid+content+145%2C82+mg+QE%2Fg.%0D%0AEffective+consentration+(IC50)+value+19%2C056+mg%2FL.+The+diameter+of+the+inhibition%0D%0Azone+against+Staphylococcus+aureus+bacteria+at+concentrations+of+20%25%2C+10%25%2C+5%25%2C%0D%0Aand+2.5%25+were+16.33+mm%2C+11.33+mm%2C+8+mm%2C+and+4.16+mm%2C+respectively.+The%0D%0Adiameter+of+the+inhibition+zone+against+Pseudomonas+aeruginosa+bacteria+starts+at%0D%0Aa+concentration+of+20%25%2C+diameter+of+inhibition+7+mm.%0D%0AConclusion%3A+The+ethyl+acetate+fraction+of+rambutan+leaves+has+good+antioxidant%0D%0Aand+antibacterial+activity.%0D%0AKeywords%3A+Phenolic%2C+flavonoid%2C+antioxidant%2C+antibacterial%2C+rambutan+leaves&rft.publisher=FAKULTAS+KEDOKTERAN&rft.date=2024-04-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F83987%2F1%2FAbstrak%2520-%2520Suci%2520Ainu%2520Sella.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F83987%2F2%2FSkripsi%2520Suci%2520Full%2520-%2520Suci%2520Ainu%2520Sella.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F83987%2F3%2FSkripsi%2520Tanpa%2520Bab%2520Pembahasan%2520-%2520Suci%2520Ainu%2520Sella.pdf&rft.identifier=++Suci+%2C+Ainu+Sella+++(2024)+PENGUJIAN+TOTAL+FENOLIK%2C+ANTIOKSIDAN%2C+DAN+ANTIBAKTERI%2C+FRAKSI+ETIL+ASETAT+DAUN+RAMBUTAN+(Nephelium+lappaceum+L.)+MENGGUNAKAN+METODE+Ultrasound-Assisted+Extraction.++FAKULTAS+KEDOKTERAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F83987%2F