?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Peningkatan+Stabilitas+Enzim+Selulase+dari+Bacillus+subtilis+ITBCCB148+dengan+Modifikasi+Kimia+Menggunakan+Asam+Glioksilat&rft.creator=Rina+Rachmawati+Sutisna%2C+1017011069&rft.subject=+&rft.description=Abstrak+Bahasa+Indonesia%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRAK%0D%0A%0D%0APENINGKATAN+STABILITAS+ENZIM+SELULASE+DARI+Bacillus+subtilis+ITBCCB148+DENGAN+MODIFIKASI+KIMIA+MENGGUNAKAN%0D%0AASAM+GLIOKSILAT%0D%0A%0D%0A%0D%0A%0D%0AOleh%0D%0A%0D%0ARina+Rachmawati+Sutisna%0D%0A%0D%0A%0D%0A%0D%0A%0D%0APenelitian+ini+bertujuan+untuk+meningkatkan+stabilitas+enzim+selulase+dari+isolat+bakteri+lokal+Bacillus+subtilis+ITBCCB148+dengan+modifikasi+menggunakan+asam+glioksilat.++Untuk+mencapai+tujuan+tersebut%2C+dilakukan+produksi%2C+isolasi%2C+pemurnian%2C+modifikasi+glioksilat+dan+karakterisasi+enzim+selulase+hasil+pemurnian+sebelum+dan+sesudah+modifikasi.++Hasil+penelitian+menunjukan+enzim+hasil+pemurnian+memiliki+aktivitas+unit+6%2C9753+U%2FmL%2C+lebih+murni+dibandingkan+dengan+ekstrak+kasar+enzim+yang+mempunyai+aktivitas+unit+0%2C5963+U%2FmL.++Enzim+hasil+pemurnian+dan+hasil+modifikasi+mempunyai+pH+optimum+yang+sama+yaitu+6%2C0+dan+++suhu+optimum+yang+sama+yaitu+60oC.++Enzim+hasil+modifikasi+asam+glioksilat+memiliki+derajat+modifikasi+70%2C54%3B+78%2C68%3B+68%2C43%25.++Stabilias+termal+enzim+hasil+modifikasi+dengan+derajat+modifikasi+70%2C54%3B+78%2C68%3B+68%2C43%25+berturut-turut%3A+t1%2F2+%3D+22%2C35+menit%2C+ki+%3D+0%2C031+menit-1%2C+%CE%94Gi+%3D+102%2C8253+kJ+mol-1%3B+t1%2F2+%3D+21%2C00+menit%2C+ki+%3D+0%2C033+menit-1%2C+%CE%94Gi+%3D+102%2C6522+kJ+mol-1%3B+%3A+t1%2F2+%3D+18%2C72+menit%2C+ki+%3D+0%2C037+menit-1%2C+%CE%94Gi+%3D+102%2C3354+kJ+mol-1%2C+dan+data+stabilitas+termal+enzim+hasil+pemurnian%3A+t1%2F2+%3D+10%2C50+menit%2C+ki+%3D+0%2C066+menit-1%2C+%CE%94Gi+%3D+100%2C7330+kJ+mol-1.+Modifikasi+kimia+terhadap+enzim+selulase+dapat+meningkatkan+kestabilan+enzim+terhadap+pH+dan+suhu+serta+meningkatkan+stabilitas+termal+enzim.%0D%0A%0D%0AKata+kunci+%3A+Bacillus+subtilis+ITBCCB148%2C+selulase%2C+modifikasi+kimia%2C+asam+glioksilat%0D%0A%0D%0A%0D%0A%0D%0AAbstrak+Bahasa+Inggris%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0ATHE+INCREASE+OF+STABILITY+CELLULASE+FROM+Bacillus+subtilis+ITBCCB148+BY+CHEMICAL+MODIFICATION+WITH%0D%0AGLYOXYLIC+ACID%0D%0A%0D%0A%0D%0A%0D%0ABy%0D%0A%0D%0ARina+Rachmawati+Sutisna%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AThe+research+aims+to+increase+the+thermal+stability+of+enzyme+cellulase+obtained+from+locale+bacteria+isolate+Bacillus+subtilis+ITBCCB148+using+modification+process+with+glyoxylic+acid.++To+approach+this+aims%2C+the+production%2C+isolation%2C+purification%2C+modificatin+and+characterization+purified+cellulase+enzyme+were+done.++The+results+showed+that+the+native+enzyme+has+a+unit+activity+6%2C9753+U%2FmL%2C+purer+than+crude+extract+enzyme+which+has+unit+activity+0%2C5963+U%2FmL.++The+native+and+the+modified+enzyme+have+similar+pH+of+6%2C0+and+optimum+temperature+of+60oC.++The+modified+enzymes+with+glyoxylic+acid+produced+modified+enzyme+with+modification+degree+of+70%2C54%3B+78%2C68%3B+68%2C43%25.++The+enzyme+thermal+stability+of+the+modified+enzyme+with+modification+degree+of+70%2C54%3B+78%2C68%3B+68%2C43%25+at+60oC+were+shown+with+the+following+data+%3A+t1%2F2+%3D+22%2C35+min%2C+ki+%3D+0%2C031+min-1%2C+%CE%94Gi+%3D+102%2C8253+kJ+mole-1%3B+t1%2F2+%3D+21%2C00+min%2C+ki+%3D+0%2C033+min-1%2C+%CE%94Gi+%3D+102%2C6522+kJ+mole-1%3B+%3A+t1%2F2+%3D+18%2C72+min%2C+ki+%3D+0%2C037+min-1%2C+%CE%94Gi+%3D+102%2C3354+kJ+mole-1%3B+respectively%2C+whereas+the+thermal+stability+of+the+purified+enzyme+has+data%3A+t1%2F2+%3D+10%2C50+min%2C+ki+%3D+0%2C066+min-1%2C+%CE%94Gi+%3D+100%2C7330+kJ+mole-1.++The+chemical+modification+on+the+purified+cellulase+enzyme+has+been+able+to+increase+the+stability+to+optimum+pH+and+optimum+temperature+and+the+thermal+stability.%0D%0A%0D%0AKeywords+%3A+Bacillus+subtilis+ITBCCB148%2C+cellulase%2C+chemical+modification%2C+glyoxylic+acid&rft.publisher=FMIPA&rft.date=2014-08-30&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F1%2F1.%2520Abstrak.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F2%2F2.%2520Abstract.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F5%2F3.%2520Cover%2520Dalam.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F6%2F4.%2520Halaman%2520Persetujuan%2520%2528Scan%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F7%2F5.%2520Halaman%2520Pengesahan%2520%2528Scan%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F8%2F6.%2520Riwayat%2520Hidup.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F9%2F7.%2520Persembahan.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F3171%2F10%2F8.%2520Motto.pdf&rft.format=text&r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