BAB V PENUTUP
B. Saran
Adapun beberapa saran yang dapat dilakukan unuk peningkatan hasil penelitian ini, antara lain :
1. Perlu adanya kajian lebih lanjut terhadap metode pembuatan edible film agar
filmyang terbentuk ketebalannya lebih merata.
2. Perlu adanya penambahan zat aditif lain yang dapat menurunkan nilai permeabilitas uap air edible film Ca-alginat agar meningkatkan umur simpan produk yang dikemas.
commit to user DAFTAR PUSTAKA
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commit to user Bagan Prosedur Kerja Pembuatan
2. Pembuatan larutan alginat dengan penambahan
Lampiran 1
Bagan Prosedur Kerja Pembuatan Edible FilmAlginat-Kitosan dan Alginat non-Kitosan
1. Pembuatan larutan kitosan
Pembuatan larutan alginat dengan penambahan plasticizer
Kitosan dan Alginat
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3. Pencampuran larutan
%, 12 %, 15 %) pada konsentrasi
4. Pencampuran larutan 92:8, 90:10, 88:12 (b/b
Pencampuran larutan alginat variasi konsentrasi plasticizer
%, 12 %, 15 %) pada konsentrasi kitosan tetap 96:4 (b/b
Pencampuran larutan alginat dengan variasi konsentrasi kitosan 92:8, 90:10, 88:12 (b/b) pada konsentrasi plasticizer
plasticizer(3 %, 6 %, 9 osan tetap 96:4 (b/b)
konsentrasi kitosan 94:6,
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commit to user Lampiran 2
Perhitungan Massa Plasticizer(Gliserol, PVA, dan PEG)
1. X / (X+3) x 100% = 3% → X = 0,09278 gram
2. X / (X+6) x 100% = 6% → X = 0,19149 gram
3. X / (X+9) x 100% = 9% → X = 0,29670 gram
4. X / (X+12) x 100% = 12% → X = 0,40900 gram
commit to user Lampiran 3
Proses Pembuatan Edible FilmAlginat-Kitosan
1. Proses pembuatan larutan alginat, larutan kitosan dan pencampuran keduanya
``
2. Edible filmalginat-kitosan setelah dicetak pada plat kaca dan setelah dimasukan ke dalam oven
commit to user Lampiran 4
Karakterisasi Edible Film
1. Kuat tarik (Tensile Strength)
Dilaksanakan di Laboratorium Material dan Bahan Teknik Jurusan Teknik Mesin FT UGM. Uji ini sesuai dengan ASTM D-638. Instrumen yang dgunakan dalam uji ini adalah sebagai berikut ;
Dimana hasil yang diperoleh dari instrument ini adalah gaya dengan satuan newton. Kemudian gaya dengan satuan newton tersebut dikonversi ke dalam satuan Kg. Persamaan yang digunakan dalam menghitung kuat tarik (tensile strength) ini adalah :
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Dimana;
σ = Kekuatan tarik bahan (Mpa)
F = Gaya maksimum (Newton) T = Tebal bahan (mm)
L = Panjang model (mm)
A. Hasil uji kuat tarik (tensile strength) edible film Ca-alginat dengan