?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=UJI+FOURIER-TRANSFORM+INFRARED+SPECTROSCOPY+(FTIR)+PADA+EKSTRAK+ETANOL+Gracilaria+sp.+DAN+EFEKTIVITASNYA+SEBAGAI+OVISIDA+NYAMUK+Aedes+aegypti+VEKTOR+DEMAM+BERDARAH+DENGUE+(DBD)+&rft.creator=HARLINA+ELO+%2C+AZIZAH+&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=570+Biologi&rft.description=Penggunaan++insektisida++kimia++menjadi++salah++satu++metode++dalam++mengendalikan+nyamuk++Aedes++aegypti%2C++namun++memberikan++dampak++negatif++seperti++polusi+lingkungan++dan++resistensi++nyamuk++Aedes++aegypti++terhadap++insektisida%2C++sehingga+diperlukan++bahan++alami++untuk++pengendalian++nyamuk++Aedes++aegypti.++Upaya+pengendalian++dapat++dilakukan++dengan++menggunakan++ovisida++berbahan++insektisida+alami.++Salah++satu++bahan++alami++yang++dapat++digunakan++sebagai++ovisida++nyamuk+Aedes++aegypti++adalah++rumput++laut.++Rumput++laut++Gracilaria++sp.++diketahui+mengandung++senyawa++alkaloid%2C++flavonoid%2C++triterpenoid%2C++saponin%2C++tanin%2C++dan+polifenol.++Tujuan++penelitian++ini++adalah++untuk++mengetahui++kandungan++senyawa+metabolit++sekunder++dan++efektivitas++ekstrak++etanol++Gracilaria++sp.++sebagai++ovisida+nyamuk++Aedes++aegypti%2C++serta++nilai++LC50++dan++LT50++ekstrak++etanol++Gracilaria++sp..+Penelitian++ini++menggunakan++Rancangan++Acak++Lengkap++(RAL).++Terdapat++6+perlakuan++terdiri++dari++konsentrasi++ekstrak++etanol++Gracilaria++sp.++0%2C5%25%3B++1%25%3B++1%2C5%25%3B+2%25%3B++air++PAM++(kontrol++negatif)++dan++1%25++azadirachtin++(kontrol++positif).++Hasil++uji+FTIR++ekstrak++etanol++Gracilaria++sp.menunjukkan++gugus++fungsi++O-H%2C++N-H%2C++C-H%2C+C%3DO%2C++C%3DC%2C++C%E2%89%A1C%2C++C-O%2C++Hasil++One-way++ANOVA++menunjukkan++adanya++perbedaan+nyata++daya++tetas++telur++antar++perlakuan++dengan++nilai++(Sig.)++p%3D++0%2C000++(p%3C0%2C05)+selama++waktu++paparan++72++jam.++Hasil++uji++tukey++menunjukkan++nilai++rerata++tertinggi+pada++konsentrasi++2%25++sebesar++14%2C00++(56%25)++dan++rerata++terendah++pada++konsentrasi+0%2C5%25++sebesar++10%2C75++(43%25).++Hasil++uji++efektivitas++menunjukkan++nilai++LC50++ekstrak+etanol++Gracilaria++sp.++sebesar++1%2C59%25%2C++sedangkan++nilai++LT50++ekstrak++etanol+Gracilaria+sp.+sebesar+11%2C91+jam.+%0D%0AKata+Kunci%3A+Aedes+aegypti%2C+Gracilaria+sp%2C+Ovisida%2C+FTIR.+%0D%0A%0D%0A%0D%0AThe++use++of++chemical++insecticides++is++the++method++in++controlling++Aedes++aegypti+mosquitoes%2C++but++it++has++negative++impacts++such++as++environmental++pollution++Aedes+aegypti+and++mosquito+resistance+to+insecticides%2C+so+natural++ingredients+are+needed+to++control++Aedes++aegypti++mosquitoes.++Control++efforts++can++be++carried++out++by++using+ovicides+made+from+natural+insecticides.+One+of+the+natural+ingredients+that+can+be+used++as++an++ovicide++for++Aedes++aegypti++mosquitoes++is++seaweed.++Gracilaria++sp.+seaweed++is++known++to++contain++alkaloids%2C++flavonoids%2C++triterpenoids%2C++saponins%2C+tannins%2C+and+polyphenols.+The+purpose+of+this+study+was+to+determine+the+content+of++secondary++metabolite++compounds++and++the++effectiveness++of++Gracilaria++sp.+ethanol++extract++as++an++ovicide++for++Aedes++aegypti++mosquitoes%2C++as++well++as++the++LC50+and++LT50++values++of++Gracilaria++sp.++ethanol++extract.++This++study++used++a++Completely+Randomized+Design+(CRD).+There+were+6+treatments+consisting+of+Gracilaria+sp.+ethanol++extract++concentrations++of++0.5%25%3B++1%25%3B++1.5%25%3B++2%25%3B++PAM++water++(negative+control)++and++1%25++azadirachtin++(positive++control).++The++results++of++the++FTIR++test++of+Gracilaria++sp.++ethanol++extract++showed++functional++groups++O-H%2C++N-H%2C++C-H%2C++C%3DO%2C+C%3DC%2C+C%E2%89%A1C%2C+C-O%2C+One-way+ANOVA+results+showed+a+significant+difference+in+egg+hatching+power+between+treatments+with+a+value+(Sig.)+p+%3D+0.000+(p+%3C0.05)+during+an++exposure++time++of++72++hours.++The++results++of++the++Tukey++test++showed++the++highest+average+value+at+a+concentration+of+2%25+of+14.00+(56%25)+and+the+lowest+average+at+a+concentration+of+0.5%25+of+10.75+(43%25).+The+results+of+the+effectiveness+test+showed+the+LC50+value+of+the+Gracilaria+sp.+ethanol+extract+of+1.59%25%2C+while+the+LT50+value+of+the+Gracilaria+sp.+ethanol+extract+was+11.91+hours.%0D%0AKeywords%3A+Aedes+aegypti%2C+Gracilaria+sp%2C+Ovicide%2C+FTIR.+&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2025-05-20&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F88287%2F1%2FASBTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F88287%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F88287%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++HARLINA+ELO+%2C+AZIZAH+++(2025)+UJI+FOURIER-TRANSFORM+INFRARED+SPECTROSCOPY+(FTIR)+PADA+EKSTRAK+ETANOL+Gracilaria+sp.+DAN+EFEKTIVITASNYA+SEBAGAI+OVISIDA+NYAMUK+Aedes+aegypti+VEKTOR+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