Electronic Theses and Dissertation

Pembuatan bionanokomposit intelligent active film berbahan dasar pati ubi jalar ungu dan kitosan dengan penambahan ekstrak antosianin ubi jalar ungu sebagai antioksidan dan gliserol sebagai plasticizer. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan variasi antosianin terhadap sifat morfologi, potensi pH responsive, pemantauan kesegaran udang, dan warna intelligent active film. Berdasarkan hasil penelitian yang telah dilakukan, intelligent active film berwarna kuning kecoklatan dengan memiliki tingkat kecerahan yang berbeda. Penambahan variasi ekstrak antosianin terhadap intelligent active film berpengaruh secara signifikan terhadap analisis warna. Analisis sifat morfologi menggunakan AFM menunjukkan hubungan antara penambahan antosianin dengan kekasaran permukaan film, di mana semakin tinggi konsentrasi antosianin maka semakin meningkat kekasaran permukaan film yang didapatkan. Analisis potensi pH responsive menunjukkan bahwa Intelligent active film yang kaya antosianin dapat dikembangkan lebih lanjut sebagai indikator pH karena dapat merubah warna film dalam berbagai pH buffer. Uji pemantauan kesegaran udang menunjukkan intelligent active film dapat memantau pembusukan udang dengan perubahan warna yang terlihat secara signifikan. Berdasarkan penelitian, intelligent active film dari pati ubi jalar ungu, kitosan, dan ekstrak antosianin memiliki potensi yang baik sebagai kemasan yang ramah lingkungan yang dapat memantau kondisi kesegaran produk dalam kemasan.

Manufacture of intelligent active film bionanocomposites based on purple sweet potato starch and chitosan with the addition of purple sweet potato anthocyanin extract as an antioxidant and glycerol as a plasticizer. This study aims to determine the effect of adding anthocyanin variations on morphological properties, pH responsive potential, shrimp freshness monitoring, and intelligent active film color. Based on the results of research that has been carried out, intelligent active film is brownish-yellow with different levels of brightness. The addition of anthocyanin extract variations to intelligent active film has a significant effect on color analysis. Analysis of morphological properties using AFM showed a relationship between the addition of anthocyanins and the surface roughness of the film, where the higher the concentration of anthocyanins, the more surface roughness of the film obtained. Analysis of pH responsive potential shows that Intelligent active film rich in anthocyanins can be further developed as a pH indicator because it can change the color of the film in various pH buffers. Shrimp freshness monitoring tests show that intelligent active film can monitor shrimp decay with significant visible discoloration. Based on research, intelligent active film of purple sweet potato starch, chitosan, and anthocyanin extract has good potential as an environmentally friendly packaging that can monitor the condition of the freshness of the product in the package.