?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=UJI+POTENSI+METABOLIT+SEKUNDER+STREPTOMYCES+SP.%0D%0ASTRAIN+I18+DAN+SERRATIA+MARCESCENS+STRAIN+MBC1+SEBAGAI%0D%0A%0D%0AOVISIDA+NYAMUK+AEDES+AEGYPTI&rft.creator=ULIN+NI%E2%80%99MAH+SETIAWATI+%2C+1717021020&rft.subject=507+Pendidikan%2C+penelitian%2C+topik+terkait+ilmu+pengetahuan+alam&rft.description=Penyakit+Demam+Berdarah+Dengue+(DBD)+merupakan+salah+satu+penyakit%0D%0Aendemik+dan+masih+menjadi+permasalahan+kesehatan+di+Indonesia.+Virus+Dengue%0D%0Aini+ditularkan+melalui+gigitan+nyamuk%2C+yaitu+Aedes+aegypti%2C+Aedes+albopictus+dan%0D%0AAedes+scutellaris.+Vektor+utama+atau+nyamuk+yang+lebih+berperan+dalam%0D%0Amenularkan+virus+Dengue+adalah+nyamuk+Ae.+aegypti.+Untuk+mengatasi%0D%0Apermasalah+tersebut+dilakukan+pengendalian+vektor+secara+hayati+dengan%0D%0Amemanfaatkan+potensi+metabolit+sekunder+yang+dihasilkan+oleh+mikroorganisme.%0D%0AEkstrak+metabolit+ini+digunakan+sebagai+ovisida+telur+nyamuk+Ae.+aegypti+untuk%0D%0Amenurunkan+kepadatan+nyamuk.+Tujuan+penelitian+ini+adalah+untuk+melakukan%0D%0Auji+potensi+dan+mengetahui+kefektifan+(nilai+LC50+dan+LC90)+metabolit+sekunder%0D%0Adari+bakteri+Serratia+marcescens+strain+MBC1+dan+Streptomyces+sp.+strain+I18%0D%0Akoleksi+Laboratorium+Mikrobiologi+Fakultas+Matematika+dan+Ilmu+Pengetahuan%0D%0AAlam+dengan+empat+konsentrasi%2C+yaitu+125+ppm%2C+250+ppm%2C+500+ppm+dan+1.000%0D%0Appm+sebagai+ovisida+terhadap+telur+nyamuk+Ae.+aegypti.+Metode+yang%0D%0Adigunakan+yaitu+dengan+rancangan+desain+faktorial+2x4+dan+digunakan+25+telur%0D%0Anyamuk+Ae.+aegypti+dengan+4+kali+pengulangan+menggunakan+air+sumur+sebagai%0D%0Akontrol+negatif+dan+aseton+sebagai+kontrol+positif.+Hasil+penelitian+ini%0D%0Amenunjukkan+bahwa+ekstrak+metabolit+sekunder+dari+Serratia+marcescens+strain%0D%0AMBC1+mampu+menghambat+penetasan+telur+nyamuk+Ae.+aegypti.+Ekstrak%0D%0Ametabolit+sekunder+dari+Serratia+marcescens+strain+MBC1+dan+Streptomyces+sp.%0D%0Astrain+I18+mampu+menghambat+siklus+hidup+Ae.+aegypti+ditandai+dengan+adanya%0D%0Akematian+larva+instar+III+pada+konsentrasi+1.000+ppm.%0D%0APotensi+yang+dimiliki+oleh+Serratia+marcescens+strain+MBC1+dapat+dijadikan%0D%0Asebagai+kandidat+ovisida+nyamuk+Ae.+aegypti.%0D%0AKata+Kunci+%3A+Metabolit+sekunder%2C+Streptomycetes+sp.%2C+Serratia+marcescens%2C%0D%0AAedes+aegypti+dan+Ovisida.%0D%0ADengue+Hemorrhagic+Fever+(DHF)+is+one+of+the+endemic+diseases+and+is+still+a%0D%0Ahealth+problem+in+Indonesia.+Dengue+virus+is+transmitted+through+mosquito+bites%2C%0D%0Anamely+Aedes+aegypti%2C+Aedes+albopictus+and+Aedes+scutellaris.+The+main+vector+or%0D%0Amosquito+that+plays+a+role+in+transmitting+the+dengue+virus+is+Ae.+aegypti.+To%0D%0Aovercome+this+problem%2C+biological+vector+control+is+carried+out+by+utilizing+the%0D%0Apotential+of+secondary+metabolites+produced+by+microorganisms.+This+metabolite%0D%0Aextract+was+used+as+an+oviside+for+the+eggs+of+Ae.+aegypti+to+reduce+mosquito%0D%0Adensity.+The+purpose+of+this+study+was+to+test+the+potency+and+determine+the%0D%0Aeffectiveness+(LC50+and+LC90+values)+of+secondary+metabolites+of+the+bacteria%0D%0ASerratia+marcescens+strain+MBC1+and+Streptomyces+sp.+strain+I18+collection+of%0D%0Athe+Laboratory+of+Microbiology%2C+Faculty+of+Mathematics+and+Natural+Sciences%0D%0Awith+four+concentrations%2C+namely+125+ppm%2C+250+ppm%2C+500+ppm+and+1%2C000+ppm+as%0D%0Aovicide+against+Ae.+aegypti.+The+method+used+is+a+2x4+factorial+design+and+25+eggs%0D%0Aof+Ae.+aegypti+with+4+repetitions+using+water+well+as+a+negative+control+and%0D%0Aacetone+as+a+positive+control.+The+results+of+this+study+showed+that+the+secondary%0D%0Ametabolite+extract+of+Serratia+marcescens+strain+MBC1+was+able+to+inhibit+the%0D%0Ahatching+of+Ae.+aegypti.+Extracts+of+secondary+metabolites+from+Serratia%0D%0Amarcescens+strain+MBC1+and+Streptomyces+sp.+strain+I18+was+able+to+inhibit+the%0D%0Alife+cycle+of+Ae.+aegypti+was+characterized+by+the+death+of+third+instar+larvae+at+a%0D%0Aconcentration+of+1%2C000+ppm.+The+potential+possessed+by+Serratia+marcescens%0D%0Astrain+MBC1+can+be+used+as+a+ovicides+of+Ae.+aegypti.%0D%0A%0D%0AKeywords%3A+Secondary+metabolites%2C+Streptomycetes+sp.%2C+Serratia+marcescens%2C%0D%0A%0D%0AAedes+aegypti+and+Ovicide.&rft.publisher=FAKULTAS+MATEMATIKA+ILMU+PENGETAHUAN+ALAM&rft.date=2021&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62228%2F1%2FABSTRAK%2520-%2520ulin%2520setiawati.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62228%2F2%2FSKRIPSI%2520FULL%2520-%2520ulin%2520setiawati.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F62228%2F4%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520ulin%2520setiawati.pdf&rft.identifier=++ULIN+NI%E2%80%99MAH+SETIAWATI+%2C+1717021020++(2021)+UJI+POTENSI+METABOLIT+SEKUNDER+STREPTOMYCES+SP.+STRAIN+I18+DAN+SERRATIA+MARCESCENS+STRAIN+MBC1+SEBAGAI+OVISIDA+NYAMUK+AEDES+AEGYPTI.++FAKULTAS+MATEMATIKA+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSI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