?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=MODEL+DIFUSI+AIR+DAN+KINETIKA+PERUBAHAN+%0D%0AKEKERASAN+DAN+DIMENSI+BIJI+HANJELI+(Coix+lacryma-jobi+L.)%0D%0APADA+BEBERAPA+SUHU+PERENDAMAN&rft.creator=NURUL+OKTAVIANI+EKA+PUTRI%2C+1514071015&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Hanjeli+is+one+of+the+cereals+plant+that+can+be+used+as+a+staple+food+source+to+%0D%0Areplace+rice.+Soaking+is+an+important+process+in+hanjeli+processing+into+food+%0D%0Aprocesssing.+The+purpose+of+this+experiment+is+to+study+the+model+of+water+%0D%0Adiffusion+and+kinetic+changes+of+hardness+and+dimensions+of+hanjeli+seeds+at+%0D%0Aseveral+temperatures+and+types+of+soaking+solution.+This+study+uses+hanjeli+seeds+%0D%0Anon+milled+var.+Ma-yuen+which+soaked+in+aquades+and+alkaline+solutions+along+10+%0D%0Ahours+at+temperatures+of+30%2C+45+and+60+%C2%BAC.+The+parameters+to+be+observed+are+%0D%0Amoisture+content+changes%2C+hardness%2C+and+dimensions.%0D%0AThe+results+of+this+study+showed+that+the+rate+of+water+absorption+based+on+Peleg+%0D%0Aequation+that+was+increased+with+the+increase+of+soaking+temperature.+The+high+of+%0D%0Asoaking+temperature+will+accelerate+to+the+process+of+diffusion+of+water+in+hanjeli%0D%0Aseeds.+The+value+of+the+diffusion+coefficient+of+water+obtained+in+the+type+of+%0D%0Aaquades+and+alkaline+soaking+solutions+is+in+the+range+3%2C915+%E2%80%93+4%2C390+x+10-11%0D%0Am%0D%0A2%0D%0A%2F+%0D%0Asecond+and+3%2C826+%E2%80%93+4%2C954+x+10-11%0D%0Am%0D%0A2%0D%0A%2Fsecond+with+activation+energy+value+obtained%0D%0Aaquades+at+3%2C235+kJ%2F+mol+and+alkali+at+7%2C314+kJ%2Fmol.+The+largest+changes+on+%0D%0Ahardness+and+the+dimensions+of+hanjeli+seeds+occur+in+soaking+used+alkaline+%0D%0Asolutions+31%2C63+N+and+0%2C0810+cm3%0D%0A.%0D%0AThe+value+of+the+constant+rate+of+change+hardness+(kk)+decreased+with+the+increase+%0D%0Aof+soaking+temperature.+The+best+model+in+calculating+the+value+of+the+reaction+%0D%0Arate+constant+and+activation+energy+on+the+parameters+of+the+hardness+change+%0D%0Aduring+soaking+used+the+Peleg+Model+equation.+The+value+of+the+rate+of+change+%0D%0Aconstant+dimension+(kV)+is+directly+proportional+to+the+increase+of+soaking+%0D%0Atemperature.+First+Order+Kinetics+Equation+has+a+good+model+in+calculated+the+%0D%0Avalue+of+the+reaction+rate+constants+and+activation+energy+on+the+parameters+of+%0D%0Adimension+changes+of+hanjeli+during+soaking.%0D%0AKeywords%3A+hanjeli%2C+soaking+temperature%2C+kinetic+model%2C+and+activation+energy%0D%0AHanjeli+merupakan+salah+satu+tanaman+serealia+yang+dapat+dimanfaatkan+sebagai+%0D%0Asumber+pangan+pokok+pengganti+beras.+Perendaman+merupakan+suatu+proses+%0D%0Aterpenting+dalam+pengolahan+hanjeli+menjadi+olahan+pangan.+Tujuan+penelitian+ini+%0D%0Aadalah+untuk+mempelajari+model+difusi+air+dan+kinetika+perubahan+kekerasan+dan+%0D%0Adimensi+biji+hanjeli+pada+beberapa+suhu+dan+jenis+larutan+perendaman.+Penelitian+%0D%0Aini+menggunakan+biji+hanjeli+non-sosoh+var.+Ma-yuen+yang+direndam+pada+larutan+%0D%0Aaquades+dan+alkali+selama+10+jam+pada+suhu+30%2C+45+dan+60+%C2%BAC+.+Parameter+yang+%0D%0Adiamati+ialah+perubahan+kadar+air%2C+kekerasan%2C+dan+dimensi.%0D%0AHasil+penelitian+ini+menunjukkan+bahwa+laju+penyerapan+air+berdasarkan+%0D%0Apersamaan+Peleg+mengalami+peningkatan+dengan+meningkatnya+suhu+%0D%0Aperendaman.+Suhu+perendaman+yang+tinggi+akan+mempercepat+proses+difusi+air+%0D%0Apada+biji+hanjeli.+Nilai+koefisien+difusi+air+yang+diperoleh+pada+jenis+larutan+%0D%0Aperendaman+aquades+dan+alkali+yaitu+berkisar+3%2C915+%E2%80%93+4%2C390+x+10-11%0D%0Am%0D%0A2%0D%0A%2Fdetik+dan+%0D%0A3%2C826+%E2%80%93+4%2C954+x+10-11+%0D%0Am%0D%0A2%0D%0A%2Fdetik+dengan+nilai+energi+aktivasi+yang+diperoleh+sebesar%0D%0Aaquades+3%2C235+kJ%2Fmol+dan+alkali+sebesar+7%2C314+kJ%2Fmol.+Perubahan+kekerasan+dan+%0D%0Adimensi+biji+hanjeli+yang+terbesar+terjadi+pada+perendaman+larutan+alkali+yaitu+%0D%0Asebesar+31%2C63+N+dan+0%2C0810+cm3%0D%0A.%0D%0ANilai+konstanta+laju+perubahan+kekerasan+(kk)+mengalami+penurunan+dengan+%0D%0Ameningkatnya+suhu+perendaman.+Model+terbaik+dalam+menghitung+nilai+%0D%0Akonstanta+laju+reaksi+dan+energi+aktivasi+pada+parameter+perubahan+kekerasan+%0D%0Ahanjeli+selama+perendaman+menggunakan+persamaan+Model+Peleg.+Nilai+%0D%0Akonstanta+laju+perubahan+dimensi+(kV)+berbanding+lurus+dengan+meningkatnya+%0D%0Asuhu+perendaman.+Persamaan+Kinetika+Orde+1+memiliki+model+yang+baik+dalam+%0D%0Aperhitungan+nilai+konstanta+laju+reaksi+dan+energi+aktivasi+pada+parameter+%0D%0Aperubahan+dimensi+hanjeli+selama+perendaman.%0D%0AKata+kunci+%3A+hanjeli%2C+suhu+perendaman%2C+model+kinetika%2C+dan+energi+aktivasi.%0D%0A&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57006%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57006%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57006%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++NURUL+OKTAVIANI+EKA+PUTRI%2C+1514071015++(2019)+MODEL+DIFUSI+AIR+DAN+KINETIKA+PERUBAHAN+KEKERASAN+DAN+DIMENSI+BIJI+HANJELI+(Coix+lacryma-jobi+L.)+PADA+BEBERAPA+SUHU+PERENDAMAN.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57006%2F