?url_ver=Z39.88-2004&rft_id=2017011032&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=OPTIMASI+PRODUKSI+BIOSURFAKTAN+DARI+BAKTERI+Lysinibacillus+boronitolerans+LKM+G1+MENGGUNAKAN+LIMBAH+PULPA+BIJI+KAKAO+DENGAN+PENDEKATAN+RESPONSE+SURFACE+METHODOLOGY+(RSM)&rft.creator=ANISA%2C+2017011032&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.description=Biosurfaktan+merupakan+senyawa+aktif+permukaan+yang+disintesis+secara+ekstraselular+oleh+mikroorganisme%2C+seperti+bakteri%2C+jamur%2C+atau+ragi.+Pada+penelitian+ini+bertujuan+untuk+mempelajari+manfaat+limbah+pulpa+biji+kakao+sebagai+sumber+karbon+dalam+produksi+biosurfaktan+dari+bakteri+Lysinibacillus+boronitolerans+LKM+G1%2C+mengetahui+kondisi+optimum+konsentrasi+sumber+karbon+pulpa+biji+kakao+(%25)%2C+pH+dan+kadar+salinitas+(%25)+dalam+produksi+biosurfaktan+dari+bakteri+Lysinibacillus+boronitolerans+LKM+G1+melalui+pendekatan+RSM%2C+mendapatkan+ekstrak+kasar+dari+biosurfaktan+dan+karakterisasi+menggunakan+metode+FTIR.%0D%0ATahapan+optimasi+diawali+dengan+preparasi+limbah+pulpa+biji+kakao%2C+peremajaan+bakteri%2C+dilanjutkan+dengan+pembuatan+kurva+pertumbuhan+dari+bakteri+Lysinibacillus+boronitolerans+LKM+G1+dalam+memproduksi+biosurfaktann+dengan+mengukur+nilai+optical+density+(OD)+dan+indeks+emulsifikasi%2C+selanjutnya+optimasi+biosurfaktan+menggunakan+metode+RSM+dengan+parameter+sumber+karbon+pulpa+biji+kakao+dalam+rentang+10%25%2C+20%25+dan+30%25%2C+pH+dalam+rentang+6%2C+7+dan+8%2C+dan+kadar+salinitas+dalam+rentang+4%25%2C+5%25+dan+6%25+%2C+pengujian+biosurfaktan+dilakukan+dengan+metode+uji+emulsifikasi%2C+oil+spreading+test+dan+uji+drop+collapse.%0D%0AHasil+penelitian+diperoleh+kondisi+optimum+produksi+biosurfaktan+pada+sumber+karbon+pulpa+biji+kakao+sebesar+20%25%2C+pH+7%2C+kadar+salinitas+4%25+dengan+hasil+indeks+emulsi+70%25+serta+didapatkan+persamaaan+polinomial+dengan+model+quadratic+yaitu+Y%3D+44.83+%2B+3.00A+%2B+1.00+B+-+3.00+C+-+0.5000AB+%2B+3.50+AC+-+4.50+BC+-+9.32+A2+-+9.32+B2+%2B+20.68+C2.+Produksi+biosurfaktan+dari+kondisi+optimum%0D%0Ayang+telah+didapatkan+diperoleh+ekstrak+kering+bewarna+putih+sebanyak+1%2C632+mg%2FL+dengan+indeks+emulsi+sebesar+75%25.+Berdasarkan+hasil+analisis+FT-IR+yang+telah+dilakukan+diperoleh+pada+puncak+karakteristik+biosurfaktan+pada+rentang+3600-3200+cm-1+tersebut+yang+mengindikasikan+golongan+lipopeptida.%0D%0A%0D%0AKata+kunci%3A+Biosurfaktan%2C+Response+Surface+Methodology+(RSM)%2C+indeks+emulsi%2C+oil+spreading+test%2C+drop+collapse+test%2C+Lysinibacillus+boronitolerans+LKM+G1%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0ABiosurfactants+are+surface+active+compounds+that+are+synthesized+extracellularly+by+microorganisms%2C+such+as+bacteria%2C+fungi+or+yeast.+This+research+aims+to+study+the+benefits+of+cocoa+bean+pulp+waste+as+a+carbon+source+in+the+production+of+biosurfactant+from+the+bacteria+Lysinibacillus+boronitolerans+LKM+G1%2C+to+determine+the+optimum+conditions+for+the+concentration+of+carbon+source+cocoa+bean+pulp+(%25)%2C+pH+and+salinity+levels+(%25)+in+the+production+of+biosurfactant+from+the+bacteria+Lysinibacillus+boronitolerans+LKM+G1+using+the+RSM+approach%2C+obtaining+crude+extracts+from+biosurfactants+and+characterization+using+the+FTIR+method.%0D%0AThe+optimization+stage+begins+with+preparation+of+cocoa+bean+pulp+waste%2C+bacterial+rejuvenation%2C+followed+by+creating+a+growth+curve+for+the+Lysinibacillus+boronitolerans+LKM+G1+bacteria+in+producing+biosurfactant+by+measuring+the+optical+density+(OD)+value+and+emulsification+index%2C+then+optimizing+the+biosurfactant+using+the+RSM+method+with+cocoa+bean+pulp+carbon+source+parameters+in+the+range+of+10%25+%2C+20%25+and+30%25%2C+pH+in+the+range+of+6%2C+7+and+8%2C+and+salinity+levels+in+the+range+of+4%25%2C+5%25+and+6%25%2C+biosurfactant+testing+was+carried+out+using+the+emulsification+test+method%2C+oil+spreading+test+and+drop+collapse+test.%0D%0AThe+results+of+the+research+obtained+optimum+conditions+for+biosurfactant+production+from+cocoa+bean+pulp+carbon+sources+of+20%25%2C+pH+7%2C+salinity+level+4%25+with+an+emulsion+index+result+of+70%25+and+obtained+a+polynomial+equation+with+a+quadratic+model%2C+namely+Y%3D+44.83+%2B+3.00A+%2B+1.00+B+-+3.00+C+-+0.5000AB+%2B+3.50+AC+-+4.50+BC+-+9.32+A2+-+9.32+B2+%2B+20.68+C2.+Biosurfactant+production+from+the+optimum+conditions+obtained+resulted+in+a+white+dry+extract+of+1.632+mg%2FL+with%0D%0Aan+emulsion+index+of+75%25.+Based+on+the+results+of+the+FT-IR+analysis+that+was+carried+out%2C+it+was+found+that+the+characteristic+peak+of+biosurfactant+in+the+range+3600-3200+cm-1+indicated+the+lipopeptide+group.%0D%0A%0D%0AKeywords%3A+Biosurfactant%2C+Response+Surface+Methodology+(RSM)%2C+emulsion+index%2C+oil+spreading+test%2C+drop+collapse+test%2C+Lysinibacillus+boronitolerans+LKM+G1&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2024-12-18&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81621%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81621%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F81621%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++ANISA%2C+2017011032++(2024)+OPTIMASI+PRODUKSI+BIOSURFAKTAN+DARI+BAKTERI+Lysinibacillus+boronitolerans+LKM+G1+MENGGUNAKAN+LIMBAH+PULPA+BIJI+KAKAO+DENGAN+PENDEKATAN+RESPONSE+SURFACE+METHODOLOGY+(RSM).++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F81621%2F