?url_ver=Z39.88-2004&rft_id=1917011057&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PRODUKSI+DAN+KARAKTERISASI+BIOSURFAKTAN+DARI+BAKTERI%0D%0AINDIGEN+ISOLAT+BSPP-1c+ASAL+SEDIMEN+PERAIRAN+PELABUHAN%0D%0APANJANG+SERTA+UJI+POTENSI+ANTIMIKROBA&rft.creator=Astin+%2C+Vidyasani&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Biosurfaktan+merupakan+senyawa+aktif+permukaan+yang+dihasilkan+dari%0D%0Amikroorganisme.+Biosurfaktan+memiliki+banyak+manfaat+dalam+berbagai+aspek%0D%0Akehidupan+manusia%2C+salah+satunya+sebagai+antibakteri+dan+antijamur.+Tujuan%0D%0Adilakukannya+penelitian+ini+yaitu+untuk+memperoleh+kondisi+optimum+dalam%0D%0Amemproduksi+biosurfaktan%2C+memproduksi+biosurfaktan%2C+mendapatkan+identitas%0D%0Aisolat+bakteri+dan+karakteristik+biosurfaktan+yang+dihasilkan%2C+dan+mengetahui%0D%0Akemampuan+biosurfaktan+sebagai+antimikroba.+Tahapan+yang+dilakukan+meliputi%0D%0Akarakterisasi+bakteri+indigen+isolat+BSPP-1c%2C+optimasi+variasi+pH%2C+optimasi+kadar%0D%0Asalinitas%2C+produksi+biosurfaktan%2C+ekstraksi+biosurfaktan+menggunakan+presipitasi%0D%0Aasam%2C+karakterisasi+biosurfaktan+menggunakan+KLT+dan+FT-IR%2C+serta+uji+potensi%0D%0Aantimikroba+menggunakan+metode+difusi+cakram.+Hasil+menunjukkan+bahwa%0D%0Abakteri+indigen+isolat+BSPP-1c+merupakan+bakteri+Bacillus+cereus.+Bakteri+ini%0D%0Amemiliki+kemampuan+optimum+dalam+memproduksi+biosurfaktan+pada+kondisi%0D%0ApH+6+dan+kadar+salinitas+1%25.+Biosurfaktan+yang+dihasilkan+memiliki+nilai+indeks%0D%0Aemulsifikasi+(IE24)+sebesar+79%2C27%25%2C+lebar+zona+bening+pada+uji+oil+spreading%0D%0Asebesar+4%2C2+cm%2C+dan+menunjukkan+hasil+positif+pada+uji+drop+collaps.+Berdasarkan%0D%0Ahasil+karakterisasi+KLT+dan+FT-IR+didapatkan+biosurfaktan+yang+dihasilkan%0D%0Amerupakan+golongan+lipopeptida.+Biosurfaktan+ini+memiliki+potensi+sebagai%0D%0Aantimikroba+dengan+kategori+sedang+terhadap+bakteri+Staphylococcus+aureus%2C%0D%0AEscherichia+coli%2C+dan+Salmonella+sp.%2C+serta+jamur+Candida+albicans.%0D%0AKata+kunci%3A+Bacillus+cereus%2C+biosurfaktan%2C+lipopeptida%2C+antimikroba.%0D%0A%0D%0ABiosurfactants+are+surface-active+compounds+produced+by+microorganisms%2C%0D%0Aoffering+various+benefits+in+different+aspects+of+human+life%2C+including+notable%0D%0Aantibacterial+and+antifungal+properties.+This+research+aims+to+achieve+optimal%0D%0Aconditions+for+biosurfactant+production%2C+synthesize+biosurfactants%2C+identify%0D%0Abacterial+isolates%2C+characterize+the+produced+biosurfactants%2C+and+assess+their%0D%0Aantimicrobial+capabilities.+The+conducted+stages+encompass+the+characterization+of%0D%0Athe+indigenous+bacterial+isolate+BSPP-1c%2C+optimization+of+pH+variations%2C%0D%0Aadjustment+of+salinity+levels%2C+biosurfactant+production%2C+extraction+using+acid%0D%0Aprecipitation%2C+biosurfactant+characterization+using+TLC+and+FT-IR%2C+and%0D%0Aantimicrobial+potential+testing+through+the+disc+diffusion+method.+The+results%0D%0Arevealed+that+the+indigenous+bacterial+isolate+BSPP-1c+corresponds+to+Bacillus%0D%0Acereus+bacteria.+This+bacterium+demonstrates+optimal+biosurfactant+production+at%0D%0Aa+pH+of+6+and+a+salinity+level+of+1%25.+The+resulting+biosurfactant+exhibited+an%0D%0Aemulsification+index+value+(IE24)+of+79.27%25%2C+a+clear+zone+width+in+the+oil%0D%0Aspreading+test+of+4.2+cm%2C+and+yielded+positive+outcomes+in+the+drop+collapse+test.%0D%0AThe+TLC+and+FT-IR+characterization+results+indicated+that+the+produced%0D%0Abiosurfactant+belongs+to+the+lipopeptide+group.+This+biosurfactant+shows+potential%0D%0Aas+a+moderate+antimicrobial+against+the+bacteria+Staphylococcus+aureus%2C%0D%0AEscherichia+coli%2C+and+Salmonella+sp.%2C+as+well+as+the+fungus+Candida+albicans.%0D%0AKeywords%3A+Bacillus+cereus%2C+biosurfactant%2C+lipopeptide%2C+antimicrobial.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2024-01-19&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F78962%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F78962%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F78962%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Astin+%2C+Vidyasani++(2024)+PRODUKSI+DAN+KARAKTERISASI+BIOSURFAKTAN+DARI+BAKTERI+INDIGEN+ISOLAT+BSPP-1c+ASAL+SEDIMEN+PERAIRAN+PELABUHAN+PANJANG+SERTA+UJI+POTENSI+ANTIMIKROBA.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F78962%2F