Electronic Theses and Dissertation

Pembuatan active film berbahan dasar pati aren, kitosan, gliserol, dan penambahan Purple Sweet Potato Extract (PSPE) telah dilakukan dengan menggunakan metode solvent casting. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan ekstrak antosianin terhadap ketebalan, strukur, sifat mekanik, laju transmisi uap air, permeabilitas uap air, transparasi, opasitas, UV-barrier dan analisis antioksidan menggunakan metode DPPH. Berdasarkan penelitian yang telah dilakukan, penambahan antosianin pada active film tidak berbeda nyata pada taraf yang signifikan terhadap ketebalan film. Analisis gugus fungsi FTIR pada CH/SPS (kontrol) menunjukkan pola puncak serapan pada 3340 cm-1 O-H streching, 2933 cm-1 C-H streching, 1644 cm-1 C=O streching, 1558 cm-1N-H bending, 1205 cm-1 C-N streching, dan 925 cm-1 C-H bending, perubahan gelombang pada beberapa puncak serapan dikarenakan pembentukan ikatan hidrogen oleh antosianin. Sifat mekanik pada active film setelah dianalisa telah memenuhi standar JIS dengan hasil kuat tarik 118,121 Mpa -125,917 Mpa, adapun nilai elongasi 10,12% - 14,62% yang masih jauh dari standar JIS minimal sebesar 70%. Analisis laju transmisi uap air dan permeabilitas uap air menurun dengan penambahan antosianin, film CH/SPS-PSPE5% memiliki nilai laju transmisi uap air yang relatif tinggi dan film CH/SPS-PSPE10% dan CH/SPS-PSPE15% memiliki nilai permeabilitas uap air yang paling rendah. Daya serap air yang rendah seiring dengan penambahan konsentrasi antosianin hal ini disebabkan terbentuknya ikatan hidrogen pada active film. Analisis transparansi, opasitas dan UV-barrier menunjukkan keempat variasi active film dapat menghalangi trasnmisi cahaya UV (

The manufacture of active film from palm starch, chitosan, glycerol, and the addition of Purple Sweet Potato Extract (PSPE) has been carried out using the solvent casting method. This research aims to analyze the effect of adding anthocyanin extract on thickness, structure, mechanical properties, water vapor transmission rate, water vapor permeability, transparency, opacity, UV-barrier and antioxidant analysis using the DPPH method. Based on research that has been carried out, the addition of anthocyanins to active films does not significantly differ from the film thickness. FTIR functional group analysis on CH/SPS (control) shows absorption peak patterns at 3340 cm-1 O-H stretching, 2933 cm-1 C-H stretching, 1644 cm-1 C=O stretching, 1558 cm-1N-H bending, 1205 cm- 1 C-N stretching, and 925 cm-1 C-H bending, the wave changes in several absorption peaks are due to the formation of hydrogen bonds by anthocyanins. The mechanical properties of the active film after analysis have met JIS standards with tensile strength results of 118.121 Mpa - 125.917 Mpa, while the elongation value is 10.12% - 14.62% which is still far from the minimum JIS standard of 70%. Analysis of the water vapor transmission rate and water vapor permeability decreases with the addition of anthocyanin, the CH/SPS-PSPE5% film has a relatively high water vapor transmission rate value and the CH/SPS-PSPE10% and CH/SPS-PSPE15% films have water vapor permeability values the lowest. The low water absorption capacity along with the increase in anthocyanin concentration is due to the formation of hydrogen bonds in the active film. Analysis of transparency, opacity and UV-barrier shows that the four active film variations can block the transmission of UV light (