?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=EFEKTIVITAS+LARVASIDA+EKSTRAK+ETANOL+RUMPUT+LAUT%0D%0ASargassum+polycystum+TERHADAP+LARVA+NYAMUK+Aedes+aegypti%0D%0A%0D%0AINSTAR+III%0D%0A&rft.creator=DIAN+%2C+DWI+AFIFAH&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=570+Biologi&rft.description=Upaya+pengendalian+vektor+nyamuk+menggunakan+larvasida+kimia+yang+dilakukan+secara%0D%0Aterus-menerus+dapat+menyebabkan+pencemaran+lingkungan.+Salah+satu+bentuk%0D%0Apengembangan+baru+dalam+pengendalian+vektor+adalah+dengan+menggunakan+larvasida%0D%0Aalami+yang+berasal+dari+ekstrak+rumput+laut+Sargassum+polycystum+yang+diduga%0D%0Amengandung+berbagai+senyawa+metabolit+sekunder+seperti+flavonoid%2C+tanin%2C+steroid%2C%0D%0Aterpenoid%2C+saponin+dan+alkaloid.+Penelitian+ini+bertujuan+untuk+mengetahui+gugus+fungsi%0D%0Adan+senyawa+hasil+uji+FTIR+ekstrak+rumput+laut+Sargassum+polycystum%2C+mengetahui%0D%0Apengaruh+konsentrasi+ekstrak+terhadap+mortalitas+larva%2C+mengetahui+nilai+efektivitas%0D%0Aekstrak+rumput+laut+Sargassum+polycystum+dan+mengetahui+morfologi+larva+nyamuk%0D%0AAedes+aegypti+pada+perlakuan+kontrol+dan+perlakuan+konsentrasi+tertinggi+ekstrak+etanol%0D%0Arumput+laut+Sargassum+polycystum.+Jenis+penelitian+ini+merupakan+eksperimental+dengan%0D%0Amenggunakan+Rancangan+Acak+Lengkap+(RAL)+yang+terdiri+dari+5+perlakuan+berupa%0D%0Akonsentrasi+ekstrak+rumput+laut+Sargassum+polycystum+(0%2C5%25%2C+0%2C75%25%2C+1%25%2C+1%2C25%25+dan+air%0D%0Asebagai+kontrol)+dan+5+kali+ulangan%2C+setiap+perlakuan+terdiri+25+ekor+larva+nyamuk+Aedes%0D%0Aaegypti+Instar+III.+Hasil+uji+FTIR+ekstrak+rumput+laut+Sargassum+polycystum%0D%0Amenunjukkan+gugus+fungsi+O-H%2C+N-H%2C+C-H%2C+C%E2%89%A1C%2C+C%3DC%2C+C%3DO+dan+C-O+yang+mengandung%0D%0Asenyawa+metabolit+sekunder+berupa+flavonoid%2C+alkaloid%2C+steroid%2C+terpenoid%2C+saponin+dan%0D%0Atanin.+Hasil+one+way+ANOVA+menunjukkan+terdapat+perbedaan+mortalitas+yang%0D%0Asignifikan+antar+konsentrasi+dengan+(p-value%3D0%2C00).+Hasil+uji+lanjut+(LSD)+menunjukkan%0D%0Apersentase+mortalitas+larva+tertinggi+pada+konsentrasi+1%2C25%25+yaitu+sebesar+93%2C6%25.+Hasil%0D%0Auji+efektivitas+menunjukkan+nilai+LC50+ekstrak+rumput+laut+Sargassum+polycystum+yaitu%0D%0Asebesar+0%2C801%25%2C+dan+kerusakan+morfologi+tubuh+larva+nyamuk+Aedes+aegypti+pada%0D%0Aperlakuan+konsentrasi+tertinggi+berupa+kepala+rusak%2C+antenna+hilang%2C+leher+memanjang%2C%0D%0Aadanya+gumpalan+ekstrak+pada+dada+larva%2C+saluran+pencernaan+menyempit%2C+papila+anal%0D%0Amengembang+dan+sifon+berbentuk+tabung.+Kesimpulan+ekstrak+rumput+laut+Sargassum%0D%0Apolycystum+ini+efektif+sebagai+larvasida+Aedes+aegypti+pada+konsentrasi+0%2C801%25.%0D%0A%0D%0AKata+Kunci+%3A+Infeksi+Virus+Dengue%2C+Rumput+Laut+Sargassum+polycystum.%2C+Larvasida%0D%0A%0D%0AAlami%2C+Larva+Aedes+aegypti.%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AEFFECTIVENESS+OF+SEAWEED+ETHANOL+EXTRACT+LARVASIDE%0D%0ASargassum+polycystum+AGAINST+Aedes+aegypti+INSTAR+III+MOSQUITO%0D%0A%0D%0ALARVA%0D%0A%0D%0ABy%0D%0ADIAN+DWI+AFIFAH%0D%0A%0D%0AContinuous+efforts+to+control+mosquito+vectors+using+chemical+larvicides+can+cause%0D%0Aenvironmental+pollution.+One+form+of+new+development+in+vector+control+is+to+use%0D%0Anatural+larvicides+derived+from+Sargassum+polycystum+seaweed+extract+which+is%0D%0Athought+to+contain+various+secondary+metabolite+compounds+such+as+flavonoids%2C%0D%0Atannins%2C+steroids%2C+terpenoids%2C+saponins+and+alkaloids.+This+research+aims+to+determine%0D%0Athe+functional+groups+and+compounds+from+the+FTIR+test+results+of+Sargassum%0D%0Apolycystum+seaweed+extract%2C+determine+the+effect+of+extract+concentration+on+larval%0D%0Amortality%2C+determine+the+effectiveness+of+Sargassum+polycystum+seaweed+extract+and%0D%0Adetermine+the+morphology+of+Aedes+aegypti+mosquito+larvae+in+the+control+treatment%0D%0Aand+the+treatment+with+the+highest+concentration+of+grass+ethanol+extract.+marine%0D%0ASargassum+polycystum.+This+type+of+research+is+experimental+using+a+Completely%0D%0ARandomized+Design+(CRD)+consisting+of+5+treatments+in+the+form+of+concentrations+of%0D%0ASargassum+polycystum+seaweed+extract+(0.5%25%2C+0.75%25%2C+1%25%2C+1.25%25+and+water+as+a%0D%0Acontrol)+and+5+replicated%2C+each+treatment+consisted+of+25+Aedes+aegypti+Instar+III%0D%0Amosquito+larvae.+The+FTIR+test+results+of+Sargassum+polycystum+seaweed+extract%0D%0Ashowed+that+the+functional+groups+O-H%2C+N-H%2C+C-H%2C+C%E2%89%A1C%2C+C%3DC%2C+C%3DO+and+C-O+contained%0D%0Asecondary+metabolite+compounds+in+the+form+of+flavonoids%2C+alkaloids%2C+steroids%2C%0D%0Aterpenoids%2C+saponins+and+tannins.+The+results+of+one+way+ANOVA+showed+that+there%0D%0Awas+a+significant+difference+in+mortality+between+concentrations+(p-value%3D0.00).%0D%0AFurther+test+results+(LSD)+showed+the+highest+average+larval+mortality+at+a%0D%0Aconcentration+of+1.25%25%2C+namely+93.6%25.+The+results+of+the+effectiveness+test+showed%0D%0Athat+the+LC50+value+of+Sargassum+polycystum+seaweed+extract+was+0.801%25%2C+and%0D%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