?url_ver=Z39.88-2004&rft_id=1614071052&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=IDENTIFIKASI+TEKNIK+PENGOLAHAN+KOPI+ROBUSTA+LAMPUNG+DENGAN+MENGGUNAKAN+UV-VIS+SPECTROSCOPY+DAN+METODE+SOFT+INDEPENDENT+MODELLING+OF+CLASS+ANALOGY+(SIMCA)&rft.creator=INDAH+NANDARISTA+%2C+1614071052&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Kopi+Robusta+adalah+jenis+kopi+yang+banyak+dibudidayakan+di+Indonesia+terutama+di+Lampung+Barat.++Salah+satu+faktor+yang+mempengaruhi+kualitas+kopi+adalah+pengolahan+pascapanen.++Ada+tiga+teknik+pengolahan+pascapanen+pada+buah+kopi+yaitu+pengolahan+basah+(wet+process)%2C+pengolahan+kering+(dry+process)%2C+dan+pengolahan+madu+(honey+process).++Masing-masing+kopi+olahan+memiliki+harga+yang+berbeda+di+pasaran%2C+terutama+kopi+pengolahan+honey+yang+dijual+lebih+mahal+dibanding+kopi+lainnya%2C+sehingga+perbedaan+harga+ketiga+kopi+tersebut+memungkinkan+adanya+pencampuran+pada+kopi.++Dari+ketiga+pengolahan+tersebut+kopi+yang+dihasilkan+sulit+dibedakan+jika+dilihat+menggunakan+indra+penglihatan%2C+terlebih+ketika+dalam+bentuk+bubuk.++Oleh+karena+itu+teknologi+UV-Vis+spectroscopy+digunakan+untuk+mengidentifikasi+teknik+pengolahan+kopi+Robusta+asal+Lampung+Barat+berdasarkan+sifat+optiknya.++Pengujian+dilakukan+dengan+menggunakan+kopi+bubuk+dengan+ukuran+mesh+50.++Pengambilan+spektra+dilakukan+sebanyak+2+kali+pengulangan+pada+setiap+sampel+menggunakan+panjang+gelombang190-400+nm+dan+panjang+gelombang+400-1100+nm.++Setelah+itu+data+spektra+yang+didapat+diolah+menggunakan+principal+component+analysis+(PCA)+untuk+melihat+pengelompokkan+seluruh+data+dan+untuk+membangun+model+klasifikasi+menggunakan+metode+soft+independent+modelling+of+class+analogy+(SIMCA).+%0D%0AHasil+klasifikasi+terbaik+menggunakan+metode+treatment+kombinasi+moving+average+7s+dan+SNV+SG+1st+derivative+7s+pada+panjang+gelombang+220-350+nm%2C+dengan+nilai+keragaman+data+sebesar+89%25.++Pada+metode+ini%2C+model+SIMCA+spektra+kopi+pengolahan+basah+dan+kopi+campuran%2C+kopi+pengolahan+basah+dan+kopi+pengolahan+kering%2C+kopi+campuran+dan+kopi+pengolahan+kering%2C+kopi+pengolahan+honey+dan+kopi+pengolahan+kering+memiliki+nilai+akurasi+100%25.++Berdasarkan+hasil+pengujian%2C+maka+model+SIMCA+yang+dibangun+dapat+mengidentifikasi+dan+mengklasifikasikan+sampel+kopi+ke+dalam+kelas+yang+sesuai+dengan+baik.+%0D%0A%0D%0A%0D%0AKata+Kunci+%3A+Kopi+pengolahan+kering%2C+Kopi+pengolahan+basah%2C+Kopi+pengolahan+honey%2C+Kopi+campuran%2C+UV-Vis+Spectroscopy%2C+Soft+Independent+Modeling+of+Class+Analogy+(SIMCA)%0D%0A%0D%0ARobusta+coffee+is+a+type+of+coffee+that+is+widely+cultivated+in+Indonesia%2C+especially+in+West+Lampung.++One+of+the+factors+that+affect+the+quality+of+coffee+is+post-harvest+processing.++There+are+three+post-harvest+processing+techniques+for+coffee+cherries%2C+those+are+namely+wet+processing%2C+dry+processing%2C+and+honey+processing.++Each+processed+coffee+has+a+different+price+on+the+market%2C+especially+honey+processing+coffee+which+is+sold+more+expensively+than+other+coffees%2C+so+the+difference+in+the+price+of+the+three+coffees+makes+it+possible+to+mix.++From+the+three+processing%2C+the+produced+coffee+is+difficult+to+distinguish+when+viewed+using+the+sense+of+sight%2C+especially+when+it+is+in+powder+form.++Therefore%2C+UV-Vis+spectroscopy+technology+was+used+to+identify+the+processing+technique+of+Robusta+coffee+from+West+Lampung+based+on+its+optical+properties.++The+test+was+carried+out+using+ground+coffee+with+a+mesh+size+of+50.++Spectra+taking+was+carried+out+by+2+repetitions+on+each+sample+using+a+wavelength+of+190-400+nm+and+a+wavelength+of+400-1100+nm.+After+that%2C+the+resulting+spectra+data+processed+using+Principal+Component+Analysis+(PCA)+to+see+the+classifying+of+all+data+and+to+build+a+classification+model+using+Soft+Independent+Modelling+of+Class+Analogy+(SIMCA)+method.%0D%0A%0D%0AThe+best+classification+results+use+a+combination+treatment+method+of+moving+average+7s+and+SNV+SG+1st+derivative+7s+at+a+wavelength+of+220%E2%80%93350+nm%2C+with+a+data+variance+of+89%25.++In+this+method%2C+the+SIMCA+spectra+model+of+wet+processing+coffee+and+mixing+coffee%2C+wet+processing++coffee+and+dry+processing++coffee%2C+mixing+coffee+and+dry+processing+coffee%2C+honey+processing+coffee+and+dry+%0D%0Aprocessing+coffee+have+an+accuracy+value+of+100%25.++Based+on+the+results+of+the+test%2C+the+SIMCA+model+that+was+built+can+identify+and+classify+the+coffee+samples+into+a+properly+appropriate+class.+%0D%0A%0D%0A%0D%0AKeyword%3A+Dry+processing+coffee%2C+Wet+processing+coffee%2C+Honey+processing+coffee%2C+Mixed+coffee%2C+UV-Vis+spectroscopy%2C+Soft+Independent+Modeling+of+Class+Analogy+(SIMCA)%0D%0A&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2022-02-14&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60182%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F60182%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.ide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