?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=HIDROLISIS+PATI+UMBI+TALAS+TARO+DI+BAWAH+PENGARUH+ULTRASONIKASI+UNTUK+MENGHASILKAN+GULA+REDUKSI+SEBAGAI+BAHAN+BAKU+BIOETANOL&rft.creator=Funda+Elisyia%2C+1017011059&rft.subject=+&rft.description=Penenelitian+ini+dilakukan+untuk+mempelajari+potensi+hidrolisis+umbi+talas+taro+di+bawah+pengaruh+ultrasonikasi+pada+frekuensi+40+kHz+untuk+menghasilkan+gula+reduksi+dengan+menitikberatkan+pada+kajian+tentang+pengaruh+pH%2C+waktu%2C+dan+suhu.+Kadar+gula+reduksi+yang+terdapat+dalam+hidrolisat+sampel%2C+ditentukan+dengan+metode+spektrofotometri+UV-Vis.+Hasil+penenelitian+menunjukkan+kadar+gula+reduksi+tertinggi+untuk+sampel+umbi+primer+dicapai+dengan+hidrolisis+pada+pH+2%2C+selama+90+menit%2C+pada+suhu+80+0C%2C+dengan+kadar+sebesar+1.969%2C2+mg%2FL.+Untuk+sampel+umbi+sekunder+kadar+gula+reduksi+dihasilkan+dari+hidrolisis+pada+pH+2%2C+selama+60+menit%2C+pada+suhu+70+0C+dengan+kadar+gula+reduksi+sebesar+691%2C8+mg%2FL.+Uji+fermentasi+menggunakan+serbuk+kulit+kayu+raru+dan+Saccharomyces+cerevisiae+menunjukkan+bahwa+kedua+agen+fermentasi+ini+mampu+mengubah+gula+reduksi+hasil+hidrolisis+umbi+talas+taro+menjadi+bioetanol.+Analisis+kadar+bioetanol+dengan+metode+spektrofotometri+UV-Vis+menunjukkan+bahwa+fermentasi+menggunakan+Saccharomyces+cerevisiae+pada+sampel+umbi+primer+menghasilkan+kadar+bioetanol+sebesar20%2C63+%25+dan+pada+sampel+umbi+sekunder+sebesar+26%2C31+%25%2C+sedangkan+untuk+sampel+umbi+primer+yang+difermentasi+dengan+serbuk+kulit+kayu+raru+menghasilkan+kadar+bioetanol+sebesar+5+%25+dan+untuk+sampel+umbi+sekunder+sebesar+2%2C87+%25.%0D%0A%0D%0AKata+kuci%3A+Umbi+talas+taro%2C+ultrasonikasi%2C+hidrolisis%2C%0D%0A+++++++++++fermentasi%2C+kayu+raru+Saccharomyces+cerevisiae.%0D%0A%0D%0A%0D%0A%0D%0AThis+research+was+conducted+to+study+the+potential+of+taro+tuber+as+raw+material+for+bioetahnol+production.+For+this+purpose%2C+as+series+of+hydrolysis+experiments+was+carried+out+under+the+influence+of+ultrasound+energy+at+fixed+frequency+of+40+kHz+to+produce+a+reducing+sugar+at+different+pHs%2C+times%2C+and+temperatures.+Reducing+sugar+in+the+hydrolyzates+was+determined+by+UV-Vis+spectrophotometry+method.+The+results+showed+the+highest+reducing+sugar+concentration+(1969.2+mg+%2F+L)+for+primary+tuber+was+achieved+by+hydrolysis+at+pH+2%2C+for+90+minutes%2C+at+a+temperature+of+80+0C.+For+a+sample+of+secondary+tuber+the+optimum+condition+is+hydrolysis+at+pH+2%2C+for+60+min+at+70+0C+with+a+reducing+sugar+concentration+produced+was+691.8+mg+%2F+L.+Fermentation+test+using+the+powdered+bark+of+raru+plant+and+Saccharomyces+cerevisiae+fermentation+showed+that+both+agents+are+capable+of+converting+the+reducing+sugar+into+bioethanol.+The+concentrations+of+bioetahol+produced+using+Saccharomyces+cerevisiae+are+20.63%25+from+primary+tuber+and+26.31%25+from+secondary+tuber.+The+concentrations+of+bioetahol+produced+using+the+bark+of+raru+plant+are+5.0%25+from+primary+tuber+and+2.87%25+from+secondary+tuber.%0D%0A%0D%0AKeywords%3A+Tuber+taro%2C+ultrasonikasi%2C+hydrolysis%2C%0D%0A++++++++++fermentation%2C+wood+raru%2C+Saccharomyces+cerevisiae.&rft.publisher=Fakultas+MIPA&rft.date=2014-09-15&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F2%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F4%2FHALAMAN%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F5%2FHALAMAN%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F6%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F7%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F8%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F9%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F10%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F11%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F13%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F15%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F16%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F17%2FBAB%2520IV.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F18%2FBAB%2520V.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3231%2F19%2FDAFTAR%2520PUSTAKA.pdf&rft.identifier=++Funda+Elisyia%2C+1017011059++(2014)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