?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+DAN+AUTENTIKASI+MINYAK+KELAPA+MURNI%0D%0AMENGGUNAKAN+SPEKTROFOTOMETRI+FOURIER+TRANSFORM%0D%0AINFRARED+(FTIR)+DAN+KEMOMETRIKA&rft.creator=%09Nadia+%2C+Anindhita%09&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Minyak+kelapa+murni+dikenal+sebagai+produk+rempah+dengan+nilai+jual+tinggi+berkat%0D%0Akualitasnya+yang+kaya+akan+asam+lemak+bermanfaat+bagi+tubuh.+Tingginya+harga%0D%0Aminyak+kelapa+murni+telah+memicu+praktik+pencampuran+dengan+minyak+nabati%0D%0Alainnya+seperti+minyak+kedelai%2C+kelapa+sawit+dan%2C+minyak+jagung.+Oleh+karena+itu%2C%0D%0Apenelitian+ini+bertujuan+untuk+menganalisis+kemurnian+minyak+kelapa+murni+yang%0D%0Aberedar+di+pasar+Bandar+Lampung+dan+mengevaluasi+validitas+metode+spektrofotometri%0D%0AFTIR+serta+kemometrika.+Metode+penelitian+meliputi+pengumpulan+sampel+minyak%0D%0Akelapa+murni+yang+beredar+di+Bandar+Lampung%2C+penyiapan+standar+minyak%2C+analisis%0D%0Amenggunakan+spektrofotometri+FTIR%2C+dan+analisis+hasil+FTIR+dengan+metode+PCA+dan%0D%0APLS+menggunakan+perangkat+lunak+Minitab.+Hasil+analisis+PCA+menunjukkan+bahwa%0D%0Aminyak+kelapa+murni+dapat+dibedakan+dari+minyak+kedelai%2C+jagung%2C+dan+kelapa+sawit.%0D%0AModel+PLS+pada+set+kalibrasi+menghasilkan+nilai+R2+sebesar+0%2C9997+dengan+nilai%0D%0ARMSEC+sebesar+0%2C0001562%25%2C+sementara+pada+set+validasi+nilai+R2+sebesar+0%2C999%0D%0Adengan+nilai+RMSEP+sebesar+0%2C854%25.+Hal+ini+menunjukkan+bahwa+model+yang+dibuat%0D%0Asudah+baik+serta+tingkat+kesalahan+yang+rendah.+Berdasarkan+prediksi+menggunakan%0D%0Amodel+PLS+yang+dikombinasikan+dengan+Box+plot%2C+kemurnian+minyak+kelapa+murni%0D%0Aberkisar+antara+91%25+hingga+95%25.%0D%0AKata+kunci%3A+Minyak+kelapa+murni%2C+minyak+nabati%2C+spektrofotometri+FTIR%2C%0D%0Akemometrika.%0D%0AVirgin+coconut+oil+is+known+as+a+high-value+spice+product+due+to+its+quality+rich+in%0D%0Abeneficial+fatty+acids+for+the+body.+The+high+price+of+virgin+coconut+oil+has+triggered%0D%0Athe+practice+of+blending+with+other+vegetable+oils+such+as%2C+soybean+oil%2C+palm+oil%2C+and%0D%0Acorn+oil.+Therefore%2C+this+study+aims+to+identify+the+purity+of+virgin+coconut+oil%0D%0Acirculating+in+the+Bandar+Lampung+market+and+evaluate+the+validity+of+FTIR%0D%0Aspectrofotometry+and+chemometrics+methods.+The+research+method+includes%0D%0Acollecting+samples+of+virgin+coconut+oil+circulating+in+Bandar+Lampung%2C+preparing%0D%0Aoil+standards%2C+analyzing+using+FTIR+spectrofotometry%2C+and+analyzing+FTIR+results%0D%0Ausing+PCA+and+PLS+methods+with+Minitab+software.+PCA+analysis+results+show%0D%0Athat+virgin+coconut+oil+can+be+distinguished+from+soybean%2C+corn%2C+and+palm+oil.+The%0D%0APLS+model+in+the+calibration+set+produces+an+R2+value+of+0.9997+with+an+RMSEC%0D%0Avalue+of+0.0001562%25%2C+while+in+the+validation+set%2C+the+R2+value+is+0.999+with+an%0D%0ARMSEP+value+of+0.854%25.+This+indicates+that+the+model+created+is+good+and+has+a%0D%0Alow+error+rate.+Based+on+predictions+using+the+PLS+model+combined+with+a+Box%0D%0Aplot%2C+the+purity+of+virgin+coconut+oil+is+estimated+to+range+from+91%25+to+95%25.%0D%0AKeywords%3A+Virgin+coconut+oil%2C+vegetable+oil%2C+FTIR+spectroscopy%2C+chemometrics&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2024-06-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87195%2F3%2FNadia%2520Anindhita_2017011003_Abstrak%2520-%2520Nadia%2520Anindhita.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87195%2F2%2FNadia%2520Anindhita_2017011003_Skripsi%2520Full%2520Tanpa%2520Lampiran%2520-%2520Nadia%2520Anindhita.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87195%2F1%2FNadia%2520Anindhita_2017011003_Skripsi%2520Tanpa%2520Pembahasan%2520dan%2520Lampiran%2520-%2520Nadia%2520Anindhita.pdf&rft.identifier=+++Nadia+%2C+Anindhita+++(2024)+ANALISIS+DAN+AUTENTIKASI+MINYAK+KELAPA+MURNI+MENGGUNAKAN+SPEKTROFOTOMETRI+FOURIER+TRANSFORM+INFRARED+(FTIR)+DAN+KEMOMETRIKA.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG+.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F87195%2F