Modifikasi Pati Ubi Kelapa Kuning Metode Presipitasi Menggunakan Beberapa Tingkat Suhu Serta Aplikasinya Untuk Edible Film

https://doi.org/10.22146/agritech.54150

Ulyarti Ulyarti(1), Rindo Amnesta(2), Rahayu Suseno(3), Nazarudin nazarudin(4*)

(1) Program Studi Teknologi Hasil Pertanian, Universitas Jambi, Jalan Raya Jambi-Muara Bulian Jambi, 36361
(2) Program Studi Teknologi Hasil Pertanian, Universitas Jambi, Jalan Raya Jambi-Muara Bulian Jambi, 36361
(3) Program Studi Teknologi Hasil Pertanian, Universitas Jambi, Jalan Raya Jambi-Muara Bulian Jambi, 36361
(4) Pusat Unggulan Ipteks Bio-Geo Material, Universitas Jambi, Jalan Raya Jambi-Muara Bulian Jambi, 36361
(*) Corresponding Author

Abstract


Penelitian ini bertujuan untuk mendapatkan suhu proses modifikasi pati menggunakan metode presipitasi yang dapat menghasilkan pati ubi kelapa kuning modifikasi dengan ukuran paling kecil serta untuk mengetahui karakteristik edible film yang dibuat dengan penambahan pati modifikasi. Penelitian ini dilakukan dalam 2 tahap yaitu tahap modifikasi pati ubi kelapa kuning dengan metode presipitasi dan tahap pembuatan 2 jenis edible film yaitu edible film dari pati alami dan dari gabungan pati alami dan pati modifikasi hasil penelitian tahap pertama. Pada tahap modifikasi pati digunakan 4 taraf suhu yaitu 70 °C, 80 °C, 90 °C dan 100 °C. Hasil penelitian menunjukkan bahwa perlakuan pemanasan pada suhu 100 °C menghasilkan pati ubi kelapa modifikasi dengan ukuran partikel pati terkecil yakni dari 1,82 sampai 21,93 µm. Edible film dengan penambahan pati
modifikasi memiliki karakteristik yang berbeda dengan edible film pati alami saja dengan karakteristik ketebalan yang lebih tinggi yakni 0,117±0,027 mm, kelarutan lebih rendah (17,36±1,56%), nilai transparansi lebih rendah (10,92±2,27%/mm), nilai WVTR yang lebih rendah (161,9±39,1 g/mm.m2.jam) dan nilai kuat tekan lebih tinggi (802,48±2,23 gF) dibandingkan edible film berbahan dasar pati alami saja.


Keywords


Edible film; presipitasi; suhu; pati ubi kelapa kuning

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DOI: https://doi.org/10.22146/agritech.54150

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