?url_ver=Z39.88-2004&rft_id=1517011054&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=OPTIMASI+PRODUKSI+BIOSURFAKTAN+DARI+BAKTERI+INDIGEN+ISOLAT+BSPP-1c+ASAL+SEDIMEN+PERAIRAN+PELABUHAN+PANJANG&rft.creator=ANI+NURHAYATI%2C+1517011054&rft.subject=001+Ilmu+pengetahuan&rft.description=Biosurfaktan+adalah+surfaktan+alami+yang+diproduksi+oleh+mikroba+dari+habitat+aslinya+atau+biasa+disebut+bakteri+indigen.+Produksi+biosurfaktan+dipengaruhi+oleh+beberapa+faktor.+Substrat+pertumbuhan+seperti+sumber+karbon+dan+nitrogen+adalah+salah+satu+faktor+penting+yang+mempengaruhi+hasil+akhir+biosurfaktan.+Tujuan+penelitian+ini+untuk+mendapatkan+kondisi+optimum+bakteri+indigen+isolat+BSPP-1c+asal+sedimen+perairan+pelabuhan+Panjang+dalam+memproduksi+biosurfaktan+dan+mengetahui+karakteristik+biokimianya.+Metode+yang+dilakukan+meliputi+peremajaan+isolat+BSPP-1c%2C+pengujian+hemolisis%2C+karakterisasi+biokimia%2C+pembuatan+kurva+pertumbuhan%2C+optimasi+kondisi+pertumbuhan+dan+uji+biosurfaktan.+Hasil+uji+hemolisis+menunjukkan+bahwa+isolat+BSPP-1c+memiliki+aktivitas+%CE%B1-hemolisis.+Karakteristik+biokimia+menunjukkan+bahwa+isolat+BSPP-1c+berbentuk+bulat+dengan+tepian+halus%2C+elevasi+cembung%2C+berwarna+jingga%2C+Gram+negatif+dan+uji+katalase+positif+yang+merupakan+karakteristik+untuk+golongan+Neisseria.+Isolat+BSPP-1c+memiliki+kondisi+optimum+pada+waktu+inkubasi+96+jam%2C+konsentrasi+inokulum+optimum+5%25+dengan+hasil+pengujian+%25IE+100%25%2C+oil+spread+7+mm+dan+drop+collapse+positif.+Sumber+karbon+terbaik+menggunakan+glukosa+2%25+dengan+hasil+pengujian+%25IE+84%2C21%25%2C+oil+spread+21+mm+dan+drop+collapse+positif+dan+sumber+nitrogen+terbaik+urea+0%2C3%25+dengan+hasil+pengujian+%25IE+77%2C78%25%2C+oil+spread+30+mm+dan+drop+collapse+positif.+Berdasarkan+hasil+tersebut+dapat+disimpulkan+bahwa+bakteri+indigen+isolat+BSPP-1c+merupakan+bakteri+Neisseria+yang+dapat+memproduksi+biosurfaktan+pada+waktu+inkubasi+96+jam+dengan+kondisi+pertumbuhan+menggunakan+sumber+karbon+glukosa+2%25%2C+sumber+nitrogen+urea+0%2C3%25+dan+konsentrasi+inokulum+5%25.%0D%0AKata+Kunci+%3A+Biosurfaktan%2C+Bakteri+indigen%2C+Neisseria%2C+Pelabuhan+Panjang%2C+Indeks+Emulsi%0D%0A%0D%0ABiosurfactants+are+surfactants+produced+by+microbes+from+their+natural+habitat+called+indigenous+bacteria.+Biosurfactant+production+is+influenced+by+several+factors.+Growth+substrates+such+as+carbon+and+nitrogen+sources+are+one+of+the+important+factors+affecting+the+final+biosurfactant+yield.+The+purpose+of+this+study+was+to+obtain+the+optimum+conditions+for+indigenous+bacteria+isolated+from%0D%0ABSPP-1c+from+the+sediments+of+Panjang+Port+waters+in+producing+biosurfactants+and+to+determine+their+biochemical+characteristics.+The+methods+used+include+rejuvenation+of+BSPP-1c+isolate%2C+hemolysis+testing%2C+biochemical+characterization%2C+growth+curve+making%2C+optimization+of+growth+conditions+and+biosurfactant+tests.+The+result+hemolysis+test+showed+that+BSPP-1c+isolate+had+%CE%B1-hemolytic+activity.+Biochemical+characteristics+showed+that+the+isolate+BSPP-1c+was+round+with+smooth+edges%2C+convex+elevation%2C+orange+color%2C+Gram+negative+and+positive+catalase+test+which+were+characteristics+for+the+Neisseria+group.+The+BSPP-1c+isolate+had+optimum+conditions+at+96+hours+of+incubation%2C+5%25+optimum+inoculum+concentration+with+the+test+results+optimum+of+100%25+IE%2C+7+mm+oil+spread+and+positive+drop+collapse.+The+best+carbon+source+using+2%25+glucose+with+the+test+results+of+%25IE+84.21%25%2C+oil+spread+21+mm+and+drop+collapse+positive+and+the+best+nitrogen+source+0.3%25+urea+with+the+test+results+of+%25IE+77.78%25%2C+oil+spread+30+mm+and+drop+positive+collapse.+Based+on+this+circumstances%2C+it+can+be+concluded+that+the+indigenous+bacteria+isolated+from+BSPP-1c+is+a+Neisseria+bacterium.+The+biosurfactants+at+an+incubation+the+producing+of+biosurfactant+time+of+96+hours+with+growth+conditions+using+2%25+glucose+carbon+source%2C+0.3%25+urea+nitrogen+source+and+5%25+inoculum+concentration.%0D%0AKeywords%3A+Biosurfactant%2C+Indigenous+bacteria%2C+Neisseria%2C+Panjang+Port%2C+Emulsification+indeks.%0D%0A%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2022-02-09&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60979%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60979%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60979%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++ANI+NURHAYATI%2C+1517011054++(2022)+OPTIMASI+PRODUKSI+BIOSURFAKTAN+DARI+BAKTERI+INDIGEN+ISOLAT+BSPP-1c+ASAL+SEDIMEN+PERAIRAN+PELABUHAN+PANJANG.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F60979%2F