?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KARAKTERISASI+DAN+ENKAPSULASI+SENYAWA+KUMARIN+DENGAN+MENGGUNAKAN+KITOSAN+SEBAGAI+PENYALUT&rft.creator=FAUZIA%2C+++SABRINA&rft.subject=001+Ilmu+pengetahuan&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=660+Teknik+kimia&rft.description=Kumarin+merupakan+senyawa+bioaktif+yang+banyak+ditemukan+pada+tumbuhan+serta+memiliki+banyak+manfaat+bagi+industri+kesehatan+maupun+industri+lainnya.+Akan+tetapi%2C+kumarin+memiliki+kestabilan+yang+masih+rendah+yang+dapat+mempengaruhi+kualitas+kumarin+dalam+pengaplikasiannya+diberbagai+industri.+Enkapsulasi+merupakan+salah+satu+teknologi+yang+dapat+digunakan+untuk+menjaga+atau+meningkatkan+kestabilan+dari+suatu+senyawa+aktif+dengan+menggunakan+bahan+penyalut+berupa+kitosan.+Kitosan+didapatkan+dari+berbagai+limbah+perikanan+seperti+kulit+udang.+Nanopartikel+kitosan+memiliki+sifat+yang+baik+digunakan+untuk+melindungi+senyawa+aktif.+Tujuan+dari+penelitian+ini+yaitu+untuk+mendapatkan+senyawa+kumarin+yang+stabil+sehingga+dapat+meningkatkan+kualitas+kumarin.+Metode+yang+dilakukan+pada+penelitian+ini+yaitu+meliputi+preparasi+kitosan%2C+pembentukan+partikel+kitosan+dan+proses+enkapsulasi.+Identifikasi+gugus+fungsi+kitosan+dengan+Spektrofotometer+FTIR+didapatkan+gugus+fungsi+serapan+khas+kitosan+yaitu+amina+(NH2)+pada+bilangan+gelombang+1379+cm-1+dengan+nilai+Derajat+Deasetilasi+(DD)+sebesar+81%2C32%25.+Analisis+ukuran+partikel+kitosan+dengan+menggunakan+Particle+Size+Analyzer+(PSA)+didapatkan+partikel+kitosan+berupa+nano+sebesar+45%2C85+nm.+Analisis+Scanning+Electron+Microscopy+(SEM)+terhadap+kumarin+yang+telah+dienkapsulasi+menghasilkan+morfologi+permukaan+agretat+tidak+beraturan.+Nilai+efisiensi+enkapsulasi+yang+didapatkan+sebesar+12%2C5%25+dengan+menggunakan+Spektrofotometer+UV-Vis.+Uji+aktivitas+antioksidan+kumarin+dengan+DPPH+didapatakan+nilai+IC50+sebesar+9%2C287+ppm%2C+membuktikan+bahwa+aktivitas+antioksidan+pada+kumarin+berada+pada+kategori+sangat+kuat%2C+dan+dapat+menghambat+radikal+bebas.%0D%0AKata+Kunci+%3A+kumarin%2C+enkapsulasi%2C+kitosan%2C+nanopartikel.%0D%0A%0D%0ACoumarins+are+bioactive+compounds+that+are+found+in+many+plants+and+have+many+benefits+for+the+health+industry+and+other+industries.+However%2C+coumarin+has+low+stability+which+can+affect+the+quality+of+coumarin+in+its+application+in+various+industries.+Encapsulation+is+a+technology+that+can+be+used+to+maintain+or+increase+the+stability+of+an+active+compound+by+using+a+coating+material+in+the+form+of+chitosan.+Chitosan+is+obtained+from+various+fishery+wastes+such+as+shrimp+shells.+Chitosan+nanoparticles+have+good+properties+used+to+protect+bioactive+compounds.+The+purpose+of+this+research+is+to+obtain+stable+coumarin+compounds+so+as+to+improve+coumarin+quality.+The+methods+used+in+this+study+included+the+preparation+of+chitosan%2C+the+formation+of+chitosan+particles+and+the+encapsulation+process.+Identification+of+the+chitosan+functional+groups+with+the+FTIR+spectrophotometer+showed+that+the+absorption+functional+group+typical+of+chitosan+was+amine+(NH2)+at+wave+number+1379+cm-1+with+a+Deacetylation+Degree+(DD)+value+of+81.32%25.+Chitosan+particle+size+analysis+using+the+Particle+Size+Analyzer+(PSA)+obtained+chitosan+particles+in+the+form+of+nano+as+large+as+45.85+nm.+Scanning+Electron+Microscopy+(SEM)+analysis+of+encapsulated+coumarins+produced+irregular+aggregate+surface+morphology.+The+encapsulation+efficiency+value+obtained+was+12.5%25+using+a+UV-Vis+Spectrophotometer.+The+antioxidant+activity+test+of+coumarins+with+DPPH+obtained+an+IC50+value+of+9.287+ppm%2C+proving+that+the+antioxidant+activity+of+coumarins+is+in+the+very+strong+category%2C+and+can+inhibit+free+radicals.%0D%0AKeywords+%3A+coumarin%2C+encapsulation%2C+chitosan%2C+nanoparticles.%0D%0A%0D%0A&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2023-01-27&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F69670%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F69670%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F69670%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++FAUZIA%2C+SABRINA++(2023)+KARAKTERISASI+DAN+ENKAPSULASI+SENYAWA+KUMARIN+DENGAN+MENGGUNAKAN+KITOSAN+SEBAGAI+PENYALUT.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F69670%2F