Neraca Massa 1 3c2k

E. Perhitungan Neraca Massa Pembuatan produk selai nanas 1. Perhitungan Neraca Massa Pembuatan Produk Selai (Nanas Muda) a) Nanas Muda dengan Konsentrasi Gula 25% Diketahui Bahan: Slurry : massa = 147,34 gram ; brix = 9o ; kadar air= 100-9 = 91% Gula : massa = 25% x 147,34 = 36,835 gram ; kadar air = 0,07% Produk: Selai : brix = 52 o ; kadar air = 100-52 = 48% Uap Air: kadar air = 100% Gula MB = 36,835 gr kAB = 0,07% B Slurry MA = 147,34 gram kAA = 91%

A

C

EVAPORASI

Selai kAC = 48%

D Uap Air kAD = 100% Perhitungan neraca massa total: A+B=C+D MA + MB = MC + MD 147,34 +36,835 = MC + MD 184,175 = MC + MD MC = 184,175 - MD Perhitungan neraca massa komponen air: A+B=C+D MA . kAA + MB . kAB = MC . kAC + MD . kAD (147,34 x 0,91) + (36,835 x 0,0007) = (MC x 0,48) + (MD x 1) 134,0794 + 0,02578 = [(184,175 – MD ) x 0,48] + MD 134,10518 = 88,404 – 0,48 MD + MD 0,52 MD = 32,4048 MD = 75,70118 gram

MC = 184,175 - MD MC = 184,175 – 75,70118 MC = 108,47382 gram

b) Nanas Muda dengan Konsentrasi Gula 50% Diketahui Bahan: Slurry : massa = 147,28 gram ; brix = 9o ; kadar air= 100-9 = 91% Gula : massa = 50% x 147,28 = 73,64 gram ; kadar air = 0,07% Produk: Selai : brix = 48,4 o ; kadar air = 100-48,4 = 51,6% Uap Air: kadar air = 100% Gula MB = 73,64 gr kAB = 0,07% B Slurry MA = 147,28 gr kAA = 91%

A

C

EVAPORASI

Selai kAC = 51,6%

D Uap Air kAD = 100% Perhitungan neraca massa total: A+B=C+D MA + MB = MC + MD 147,28 + 73,64 = MC + MD 220,92 = MC + MD MC = 220,92 - MD Perhitungan neraca massa komponen air: A+B=C+D MA . kAA + MB . kAB = MC . kAC + MD . kAD (147,28 x 0,91) + (73,64 x 0,0007) = (MC x 0,516) + (MD x 1) 134,0248 + 0,051548 = ((220,92 – MD ) x 0,516) + MD 134,07634 = 113,9947 – 0,516 MD + MD 0,484 MD = 20,08162 MD = 41,49 gram MC = 220,92 - MD MC = 220,92 – 41,49 MC = 179,43 gram 2. Perhitungan Neraca Massa Pembuatan Produk Selai (Nanas Setengah Matang) a) Nanas Setengah Matang dengan Konsentrasi Gula 25% Diketahui Bahan: Slurry : massa = 205,60 gram ; brix = 15o ; kadar air= 100-15 = 85%

Gula : massa = 25% x 205,60 = 51,4 gram ; kadar air = 0,07% Produk: Selai : brix = 43o ; kadar air = 100-43 = 57% Uap Air: kadar air = 100% Gula MB = 51,4 gr kAB = 0,07% B Slurry MA = 205,6 gr kAA = 85%

A

C

EVAPORASI

Selai kAC = 57%

D Uap Air kAD = 100% Perhitungan neraca massa total: A+B=C+D MA + MB = MC + MD 205,6 + 51,4 = MC + MD 256,4 = MC + MD MC = 257 - MD Perhitungan neraca massa komponen air: A+B=C+D MA . kAA + MB . kAB = MC . kAC + MD . kAD (205,6 x 0,85) + (51,4 x 0,0007) = (MC x 0,57) + (MD x 1) 174,76 + 0,03598 = ((257 – MD ) x 0,57) + MD 174,7959 = 146,49 – 0,57 MD + MD 0,43 MD = 28,3059 MD = 65,828 gram

MC = 284,8625 - MD MC = 284,8625 – 117,245 MC = 167,6175 gram

b) Nanas Setengah Matang dengan Konsentrasi Gula 50% Diketahui Bahan: Slurry : massa = 209,1 gram ; brix = 15o ; kadar air= 100-15 = 85% Gula : massa = 50% x 209,1 = 104,55 gram ; kadar air = 0,07% Produk: Selai : brix = 47o ; kadar air = 100-47 = 53% Uap Air: kadar air = 100% Gula MB = 104,55 gr kAB = 0,07%

B Slurry MA = 209,1 gr kAA = 85%

A

C

EVAPORASI

Selai kAC = 53%

D Uap Air kAD = 100% Perhitungan neraca massa total: A+B=C+D MA + MB = MC + MD 209,1 + 104,55 = MC + MD 313,65 = MC + MD MC = 313,65 - MD Perhitungan neraca massa komponen air: A+B=C+D MA . kAA + MB . kAB = MC . kAC + MD . kAD (209,1 x 0,85) + (104,55 x 0,0007) = (MC x 0,53) + (MD x 1) 177,65 + 0,073185 = ((313,65 – MD ) x 0,53) + MD 177,723185 = 166,2345 – 0,53 MD + MD 0,47 MD = 11,48868 MD = 24,444 gram MC = 313,65 - MD MC = 313,65 – 24,444 MC = 289,206 gram 3. Perhitungan Neraca Massa Pembuatan Produk Selai (Nanas Matang) a) Nanas Matang dengan Konsentrasi Gula 25% Diketahui Bahan: Slurry : massa = 188,93 gram ; brix = 11o ; kadar air= 100-11 = 89% Gula : massa = 25% x 188,93 = 47,2325 gram ; kadar air = 0,07% Produk: Selai : brix = 44 o ; kadar air = 100-44 = 66% Uap Air: kadar air = 100% Gula MB = 47,2325 gr kAB = 0,07% B

Slurry MA = 188,93 gr kAA = 89%

A

C

EVAPORASI

Selai kAC = 66%

D Uap Air kAD = 100% Perhitungan neraca massa total: A+B=C+D MA + MB = MC + MD 188,93 + 47,2325 = MC + MD 236,1625 = MC + MD MC = 236,1625 - MD Perhitungan neraca massa komponen air: A+B=C+D MA . kAA + MB . kAB = MC . kAC + MD . kAD (188,93 x 0,89) + (47,2325 x 0,0007) = (MC x 0,66) + (MD x 1) 189,82 + 0,331 = ((236,1625 – MD ) x 0,66) + MD 189,851 = 155,91345 – 0,66 MD + MD 0,44 MD = 33,93755 MD = 77,131 gram

MC = 236,1625 - MD MC = 236,1625 – 77,131 MC = 159,0315 gram

b) Nanas Matang dengan Konsentrasi Gula 50% Diketahui Bahan: Slurry : massa = 216,69 gram ; brix = 12o ; kadar air= 100-12 = 88% Gula : massa = 50% x 216,69 = 108,345 gram ; kadar air = 0,07% Produk: Selai : brix = 52 o ; kadar air = 100-52 = 48% Uap Air: kadar air = 100% Gula MB = 108,345 gr kAB = 0,07% B Slurry MA = 216,69 gr kAA = 88%

A

C

EVAPORASI

D

Selai kAC = 48%

Uap Air kAD = 100% Perhitungan neraca massa total: A+B=C+D MA + MB = MC + MD 216,69 + 108,345 = MC + MD 325,035 = MC + MD MC = 325,035 - MD Perhitungan neraca massa komponen air: A+B=C+D MA . kAA + MB . kAB = MC . kAC + MD . kAD (216,69 x 0,88) + (108,345 x 0,0007) = (MC x 0,48) + (MD x 1) 190,6872 + 0,0758415= ((325,035 – MD ) x 0,48) + MD 190,943 = 156,0168 – 0,48 MD + MD 0,52 MD = 34,9262 MD = 67,166 gram MC = 325,035 - MD MC = 325,035 – 67,166 MC = 257,869 gram