?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=HIDROLISIS+ONGGOK+DI+BAWAH+PENGARUH+ULTRASONIKASI+MENGHASILKAN+GULA+REDUKSI+DAN+UJI+FERMENTASINYA+MENJADI+BIOETANOL+(HYDROLYSIS+OF+CASSAVA+WASTE+UNDER+ULTRASONICATION+TREATMENT+TO+PRODUCE+REDUCING+SUGAR+AND+FERMENTATION+FOR+BIOETHANOL+PRODUCTION)&rft.creator=I+Nengah%2C+LUH+GEDE+RAI+PUTRI+SEPTARINI&rft.subject=Q+Science+(General)&rft.subject=QD+Chemistry&rft.description=Penelitian+ini+dilakukan+untuk+mempelajari+potensi+hidrolisis+onggok+di+bawah+pengaruh+ultrasonikasi+untuk+menghasilkan+gula+reduksi%2C+dan+fermentasinya+menjadi+bioetanol.+Hidrolisis+onggok+dilakukan+di+bawah+pengaruh+ultrasonikasi+pada+frekuensi+tetap+sebesar+40+kHz+dan+tiga+variabel%2C+yakni+pH%2C+waktu%2C+dan+suhu.+Unjuk+kerja+percobaan+diukur+berdasarkan+kadar+gula+reduksi+yang+terdapat+dalam+hidrolisat+sampel%2C+yang+ditentukan+dengan+metode+spektrofotometri+UV-Vis.+Hasil+penelitian+menunjukkan+bahwa+hidrolisis+onggok+dengan+bantuan+ultrasonikasi+mampu+menghasilkan+gula+reduksi+yang+kadarnya+dipengaruhi+oleh+variabel+yang+digunakan.+Kadar+gula+reduksi+tertinggi+terdapat+dalam+sampel+yang+dihidrolisis+pada+pH+2+selama+90+menit+dan+suhu+80+0C%2C+dengan+kadar+sebesar+801+mg%2FL.+Uji+fermentasi+terhadap+sampel+ini+menggunakan+serbuk+kulit+kayu+raru+dan+Saccharomyces+cerevisiae+menunjukkan+bahwa+kedua+agen+fermentasi+ini+mampu+mengubah+gula+reduksi+hasil+hidrolisis+onggok.+Analisis+kadar+etanol+dengan+metode+kromatografi+gas+menunjukkan+bahwa+Saccharomyces+cerevisiae+mampu+menghasilkan+bioetanol+dengan+kadar+0%2C17%25+dari+filtrat+dan+0%2C26%25+dari+sampel+utuh%2C+sedangkan+serbuk+kulit+kayu+raru+mampu+menghasilkan+bioetanol+dengan+kadar+masing-masing+0%2C05%25+dari+filtrat+dan+0%2C004%25+dari+sampel+utuh.+Secara+keseluruhan+terlihat+bahwa+hidrolisat+onggok+lebih+mudah+difermentasi+menggunakan+Saccharomyces+cerevisiae.%0D%0AKata+kunci%3A+Onggok%2C+ultrasonikasi%2C+hidrolisis%2C+fermentasi%2C+kayu+raru%2C+Saccharomyces+cerevisiae.+(In+this+study%2C+the+potential+of+hydrolysis+of+cassava+waste+under+ultrasonication+treatment+to+produce+reducing+sugar+was+investigated.+The+reducing+sugar+was+subsequently+subjected+to+fermentation+assay+using+the+bark+of+Raru+tree+and+Saccharomyces+cerevisiae.+Hydrolysis+experiments+were+carried+out+at+fixed+ultrasound+frequency+40+kHz%2C+under+varied+pH%2C+time%2C+and+temperature.+The+concentrations+of+reducing+sugar+in+the+hydrolyzates+was+determined+by+using+spectrophotometry+UV-Vis.+The+results+of+hydrolysis+experiments+showed+that+the+highest+concentration+of+reducing+sugar+was+obtained+by+hydrolysis+at+pH+2+for+90+minutes+and+temperature+of+80+0C%2C+with+the+content+of+801+mg%2FL.+Fermentation+of+the+hydrolizate+which+contains+the+highest+sugar+content+indicated+that+the+sugar+can+be+converted+into+bioethanol.+According+to+GC+analysis%2C+it+was+found+that+the+concentrations+of+bioethanol+from+fermentation+of+filtrate+and+intact+sample+using+the+bark+of+Raru+tree+were+0%2C05%25+and+0%2C004%2C+respectively%2C+while+using+Saccharomyces+cerevisiae+were+0%2C17%25+and+0%2C26%25%2C+respectively.%0D%0AKeywords%3A+cassava+waste%2C+ultrasonication%2C+hydrolysis%2C+fermentation%2C+the+bark+of+Raru+tree%2C+Saccharomyces+cerevisiae.)&rft.publisher=Fakultas+MIPA&rft.date=2013-09-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F1%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F3%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F4%2FLEMBAR%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F5%2FLEMBAR%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F6%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F7%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F8%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F9%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F10%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F11%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F12%2FDAFTAR%2520PUSTAKA.pdf&rft.format=archive&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F13%2FLAMPIRAN.zip&rft.identifier=++I+Nengah%2C+LUH+GEDE+RAI+PUTRI+SEPTARINI++(2013)+HIDROLISIS+ONGGOK+DI+BAWAH+PENGARUH+ULTRASONIKASI+MENGHASILKAN+GULA+REDUKSI+DAN+UJI+FERMENTASINYA+MENJADI+BIOETANOL+(HYDROLYSIS+OF+CASSAVA+WASTE+UNDER+ULTRASONICATION+TREATMENT+TO+PRODUCE+REDUCING+SUGAR+AND+FERMENTATION+FOR+BIOETHANOL+PRODUCTION).++Fakultas+MIPA%2C+Universitas+Lampung.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F902%2F