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      • UT - Faculty of Fisheries and Marine Science
      • UT - Aquatic Product Technology
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      Pengaruh Suhu dan Waktu Ekstraksi terhadap Kualitas Agar Semi-refined dan Aplikasinya pada Pembuatan Sedotan Bioplastik

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      Date
      2025
      Author
      Ananda, Bunga
      Santoso, Joko
      Ramadhan, Wahyu
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      Abstract
      Penggunaan agar murni dalam pembuatan sedotan bioplastik memiliki biaya yang relatif lebih mahal, karena memiliki proses produksi yang cukup panjang seperti proses pemutihan, filtrasi bertingkat, dan penghilangan mineral untuk mencapai tingkat kemurnian yang tinggi. Agar semi-refined dapat menjadi alternatif untuk menggantikan penggunaan agar murni. Penelitian ini menghasilkan perlakuan suhu 90 °C dengan waktu 90 menit menjadi perlakuan ekstraksi terbaik. Pembuatan sedotan bioplastik dilakukan dengan 6 formula, yaitu AS0, AS1, AS2, AS3, AS4, dan AS5 dengan rasio 0%, 30%, 40%, 50%, 60%, dan 70% perbandingan antara agar semi-refined dengan agar murni yang menghasilkan formula AS0 dan AS1 menjadi formulasi terbaik. Sedotan AS0 memiliki ketebalan 0,43±0,20 mm, daya absorpsi air 40,07±5,12%, kuat tarik 0,34±0,01 MPa, dan elongasi 19,33±5,69%. Sedotan AS0 memiliki ketebalan 0,41±0,01 mm, daya absorpsi 72,77±9,54%, kuat tarik 0,44±0,01 MPa, dan elongasi 17,67±4,93%. Terdapat perbedaan hasil pada uji mikrostruktur, gugus fungsi, dan sudut kontak dari sedotan AS0 dan AS1.
       
      The use of pure agar in the manufacture of bioplastic straws is relatively more expensive because it involves a lengthy production process, such as bleaching, multi-stage filtration, and mineral removal to achieve a high level of purity. Semirefined agar can be an alternative to pure agar. This study found that treatment at a temperature of 90 °C for 90 minutes was the best extraction treatment. Bioplastic straws were produced using six formulas, namely AS0, AS1, AS2, AS3, AS4, and AS5, with ratios of 0%, 30%, 40%, 50%, 60%, and 70% between semi-refined agar and pure agar, resulting in formulas AS0 and AS1 as the best formulations. The AS0 straw had a thickness of 0.43±0.20 mm, water absorption of 40.07±5.12%, tensile strength of 0.34±0.01 MPa, and elongation of 19.33±5.69%. The AS0 straw has a thickness of 0.41±0.01 mm, water absorption of 72.77±9.54%, tensile strength of 0.44±0.01 MPa, and elongation of 17.67±4.93%. There are differences in the results of the microstructure, functional group, and contact angle tests of the AS0 and AS1 straws.
       
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      http://repository.ipb.ac.id/handle/123456789/171195
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      • UT - Aquatic Product Technology [2454]

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      Indonesia DSpace Group 
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