?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=UJI+KEMURNIAN+KOPI+BUBUK+LUWAK+(paradoxurus+hermaphrodites)%0D%0AMENGGUNAKAN+METODE+UV-VIS+SPEKTROSKOPI+DAN+SIMCA&rft.creator=%09Alpin%2C++Handi+Wianto+%09&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Indonesia+memiliki+sumber+daya+alam+yang+sangat+melimpah+salah%0D%0Asatunya+dari+sektor+perkebunan+yang+memiliki+keaneragaman+hasil+seperti+kopi%2C%0D%0Ateh%2C+kakao%2C+sawit+dan+lain+sebagainya.+Kopi+sendiri+di+Indonesia+memiliki%0D%0Abeberapa+jenis%2C+namun+yang+paling+terkenal+adalah+arabika+dan+robusta.+Pada%0D%0Apenelitian+ini+saya+menggunakan+kopi+jenis+luwak+robusta%2C+dimana+jenis+kopi+ini%0D%0Asudah+dimakan+oleh+hewan+luwak+dan+sudah+melalui+proses+pencernaan+hewan%0D%0Aluwak.+Kopi+luwak+di+Indonesia+masih+tergolong+kopi+dengan+harga+jual+yang%0D%0Atinggi.+Sehingga+banyak+oknum+yang+melakukan+pemalsuan+terhadap+keaslian%0D%0Akopi+luwak+yang+dicampur+dengan+beras+atau+bahan+lainnya.+Penelitian+ini%0D%0Amenggunakan+metode+UV-Vis+spektroskopi+dan+SIMCA+untuk+mengidentifikasi%0D%0Akeaslian+kopi+luwak+yang+dicampur+dengan+beras.%0D%0A%0D%0ASampel+yang+digunakan+sebanyak+150+sampel+yang+terdiri+daridua+jenis%0D%0Akopi+luwak+Papandayan+dan+Cikuray+dan+terbagi+menjadi+25+sampel+kopi+luwak%0D%0APapandayan+asli%2C+50+sampel+kopi+luwak+Papandayan+campuran+beras+10%25-50%25%2C%0D%0A25+sampel+kopi+luwak+Cikuray+asli+dan+50+sampel+kopi+luwak+Cikuray+campuran%0D%0Aberas+10%25-50%25.+Sebelum+dilakukan+pengambilan+spektra%2C+ada+beberapa+yahapan%0D%0Ayang+harus+dilakukan+terlebih+dahulu+antara+lain+penimbangan+sampel%2C+pembuatan%0D%0Alarutan%2C+pengadukan%2C+penyaringan%2C+pengenceran+sampel%2C+kemudian+dilakukan%0D%0Apengambilan+spektra+menggunakan+UV-Vis+spektroskopi+dan+membuat+model%0D%0Aserta+mengujinya+dengan+metode+PCA+dan+SIMCA.+Hasil+pengujian+PCA+ori+pada%0D%0Akopi+Papandayan+dan+Cikuray+diperoleh+hasil+PC1+dan+PC2+sebesar+100%25.+Hasil%0D%0APCA+terbaik+diperoleh+dengan+dengan+cara+perbaikan+spektra+menggunakan%0D%0Apreatreatment+Savitzky-Golay+Smoothing+9+segmen+dengan+jumlah+nilai+PC1+dan%0D%0APC2+sebesar+100%25.+Kemudian%2C+hasil+klasifikasi+model+SIMCA+PA+dan+PC%0D%0Adiperoleh+nilai+akurasi+80%25%2C+sensitivitas+100%25%2C+spesifisitas+64%25+dan+error+20%25%2C%0D%0Asedangkan+untuk+hasil+klasifikasi+model+SIMCA+CA+dan+CC+diperoleh+nilai%0D%0Aakurasi+80%2C8%25%2C+sensitivitas+86%2C7%25%2C+spesifisitas+72%2C7%25+dan+error+19%2C2%25.%0D%0ABerdasarkan+hubungan+analisis+spesifisitas+dan+sensitivitas+yang+disajikan+dalam%0D%0Abentuk+kurva+ROC%2C+hasil+klasifikasi+PA+dan+PC+serta+CA+dan+CC+dikategorikan%0D%0Amempunyai+nilai+baik.%0D%0A%0D%0AKata+Kunci%3A+Kopi+luwak+Papandayan%2C+Kopi+luwak+Cikuray%2C+UV-Vis%0D%0A%0D%0Aspektroskopi%2C+beras%2C+PCA%2C+SIMCA%0D%0AIndonesia+has+very+abundant+natural+resources%2C+one+of+which+is+the%0D%0Aplantation+sector+which+has+a+diversity+of+products+such+as+coffee%2C+tea%2C+cocoa%2C+palm%0D%0Aoil+and+so+on.+There+are+several+types+of+coffee+in+Indonesia%2C+but+the+most+famous%0D%0Aare+Arabica+and+Robusta.+In+this+research%2C+I+used+Luwak+Robusta+coffee%2C+where%0D%0Athis+type+of+coffee+has+been+eaten+by+civet+animals+and+has+gone+through+the+civet%0D%0Aanimal's+digestive+process.+Luwak+coffee+in+Indonesia+is+still+classified+as+coffee%0D%0Awith+a+high+selling+price.+So+many+individuals+falsify+the+authenticity+of+Luwak%0D%0Acoffee+by+mixing+it+with+rice+or+other+ingredients.+This+research+uses+UV-Vis%0D%0Aspectroscopy+and+SIMCA+methods+to+identify+the+authenticity+of+Luwak+coffee%0D%0Amixed+with+rice.%0D%0A%0D%0AThe+samples+used+were+150+samples+consisting+of+two+types+of%0D%0APapandayan+and+Cikuray+civet+coffee+and+were+divided+into+25+samples+of+original%0D%0APapandayan+civet+coffee%2C+50+samples+of+Papandayan+civet+coffee+mixed+with+10%25%0D%0A-+50%25+rice%2C+25+samples+of+original+Cikuray+civet+coffee+and+50+samples+of+Cikuray%0D%0Acivet+coffee.+rice+mixture+10%25-50%25.+Before+taking+the+spectra%2C+there+are+several%0D%0Asteps+that+must+be+done+first%2C+including+weighing+the+sample%2C+making+a+solution%2C%0D%0Astirring%2C+filtering%2C+diluting+the+sample%2C+then+taking+the+spectra+using+UV-Vis%0D%0Aspectroscopy+and+making+a+model+and+testing+it+using+the+PCA+and+SIMCA%0D%0Amethods.+The+original+PCA+test+results+on+Papandayan+and+Cikuray+coffee%0D%0A%0D%0Avii%0D%0Aobtained+PC1+and+PC2+results+of+100%25.+The+best+PCA+results+were+obtained+by%0D%0Aimproving+the+spectra+using+Savitzky-Golay+Smoothing+pretreatment+for+9%0D%0Asegments+with+a+total+PC1+and+PC2+value+of+100%25.+Then%2C+the+classification+results%0D%0Aof+the+SIMCA+PA+and+PC+models+obtained+accuracy+values+of+80%25%2C+sensitivity%0D%0A100%25%2C+specificity+64%25+and+error+20%25%2C+while+for+the+classification+results+of+the%0D%0ASIMCA+CA+and+CC+models+obtained+accuracy+values+of+80.8%25%2C+sensitivity%0D%0A86.7%25%2C+specificity+72.7%25+and+error+19.2%25.+Based+on+the+relationship+between%0D%0Aspecificity+and+sensitivity+analysis+presented+in+the+form+of+a+ROC+curve%2C+the%0D%0Aclassification+results+of+PA+and+PC+as+well+as+CA+and+CC+were+categorized+as%0D%0Ahaving+good+value.%0D%0A%0D%0AKeywords%3A+Papandayan+civet+coffee%2C+Cikuray+civet+coffee%2C+UV-Visspectroscopy%2C%0D%0A%0D%0Arice%2C+PCA%2C+SIMCA&rft.publisher=PERTANIAN&rft.date=2024-06-05&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87038%2F1%2FABSTRAK-1%2520-%2520Alpin%2520Handi.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87038%2F2%2FSKRIPSI%2520FULL%2520-%2520Alpin%2520Handi.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F87038%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN%2520-%2520Alpin%2520Handi.pdf&rft.identifier=+++Alpin%2C+Handi+Wianto+++(2024)+UJI+KEMURNIAN+KOPI+BUBUK+LUWAK+(paradoxurus+hermaphrodites)+MENGGUNAKAN+METODE+UV-VIS+SPEKTROSKOPI+DAN+SIMCA.++PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F87038%2F