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      Studi Aktivitas Antirayap Ekstrak Biji Sirsak Gunung pada Kertas Komposit Berbasis Ampas Tebu dan Kertas Bekas

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      Date
      2026
      Author
      FASHA, RAHMANIA
      Kemala, Tetty
      Purwaningsih, Henny
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      Abstract
      Ekstrak biji sirsak gunung berpotensi sebagai agen antirayap alami untuk kertas kemasan nonkayu berbasis ampas tebu dan kertas HVS bekas. Penelitian ini bertujuan menentukan konsentrasi efektif ekstrak serta mengkaji pengaruhnya terhadap sifat mekanis kertas komposit. Kertas dibuat dari pulp ampas tebu dan kertas HVS bekas (50:50) dengan 5% (b/b) polivinil asetat. Ekstrak diperoleh melalui sonikasi berbantuan suhu menggunakan etanol 96% pada 50 °C selama 55 menit. Ekstrak ditambahkan ke dalam pulp dengan variasi konsentrasi 2, 4, dan 8% (b/b). Rendemen ekstrak diperoleh 8,11 ± 1,31%. Analisis FTIR mengonfirmasi keberadaan gugus fungsi selulosa dengan sisa lignin, yang menandakan proses pulping belum sempurna. Aktivitas antirayap diuji menggunakan metode no-choice test dan kertas komposit dengan 2% (b/b) ekstrak biji sirsak gunung memiliki efektivitas terbaik. Kertas ini menyebabkan 100% mortalitas rayap dan bobot kertas berkurang 2,52%. Kenaikan konsentrasi tidak berpengaruh signifikan pada seluruh pengujian (p>0,05). Kertas yang dihasilkan belum memenuhi persyaratan mutu kertas kemasan menurut SNI 8218:2015 berdasarkan nilai kekuatan tariknya.
       
      Mountain soursop (Annona montana) seeds extract has potential as a natural anti termite agent for non-wood packaging paper produced from sugarcane bagasse and recycled paper. This study evaluated the effective extract concentration and its effect on the mechanical properties of the composite paper. Composite paper was fabricated from sugarcane bagasse and recycled paper pulp (50:50) in the presence of 5 wt% polyvinyl acetate. The extract was obtained by Thermosonication-Assisted Extraction using 96% ethanol at 50 °C for 55 min. and incorporated into the composite paper at concentrations of 2, 4, and 8 wt%. The extract yield was 8,11 ± 1,31%. FTIR analysis confirmed cellulose functional groups with residual lignin, indicating incomplete pulping process. Anti termite activity was assessed using a no-choice test and the paper containing 2 wt% extract showed the highest efficacy, achieving 100% termite mortality with only 2,52% paper weight loss. Increasing the extract concentration did not significantly affect any of the evaluated parameters (p>0,05). However, the resulting composite paper did not meet the quality requirements for packaging paper specified in SNI 8218:2015 based on its tensile strength.
       
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      http://repository.ipb.ac.id/handle/123456789/177561
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      • UF - Chemistry [2314]

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      Indonesia DSpace Group 
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