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Optimasi Proses Biodegumming Serat Rami (Boehmeria nivea) Menggunakan Bakteri Pektinolitik Muhammad Abdul Aziz; Fauziatul Fitriyah; Priyono Priyono; Siswanto Siswanto
Al-Kauniyah: Jurnal Biologi Vol 16, No 1 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i1.20386

Abstract

AbstrakProses degumming serat rami umumnya dilakukan menggunakan senyawa alkali dalam jumlah besar, sehingga dihasilkan limbah berlebih dan berakibat pada pencemaran lingkungan. Oleh sebab itu, metode alternatif dengan memanfaatkan agensia hayati untuk mengatasi permasalahan tersebut penting untuk dikembangkan. Penelitian ini bertujuan untuk melakukan seleksi kandidat bacterial degumming dari kulit batang rami serta optimasi metode biodegumming menggunakan isolat bakteri pektinolitik. Bakteri pektinolitik diisolasi dari kulit batang  rami yang terkomposkan menggunakan media seleksi pektinase (PSAM). Isolat bakteri yang diperoleh kemudian digunakan sebagai agensia biodegumming menggunakan beberapa parameter optimasi meliputi pH (8,5 dan 9), suhu (25 °C dan 37,5 °C), jenis isolat (Pe-Ku 1, Pe-Ku 4, dan Pe-Ku 6) dan jumlah inokulum (1/50 mL, 2/50 mL, dan 3/50 mL). Setelah inkubasi selama 3 hari, serat rami dicuci kemudian ditimbang bobot kering untuk mengetahui penurunan bobotnya. Analisis statistik dilakukan menggunakan two-way ANOVA dengan uji lanjut Duncan. Hasil penelitian menunjukan bahwa telah diperoleh 9 isolat bakteri pektinolitik sebagai agensia bacterial degumming. Berdasarkan optimasi metode biodegumming telah diperoleh kondisi optimum yaitu pada pH 8,5; suhu 37,5 °C; serta jumlah inokulum 3/50 mL dengan mengggunakan isolat Pe-Ku 6. Hal tersebut ditandai dengan penurunan bobot rami yang secara signifikan lebih tinggi dibandingkan kombinasi perlakuan lain, yaitu sebesar 12,7%. Kata kunci: Bakteri degumming; Bakteri pektinolitik; Kulit batang rami; Serat rami AbstractThe degumming process of ramie fiber is generally carried out by using large amounts of alkaline compounds, causing excessive waste and environmental pollution. Therefore, it is essential to develop alternative methods by utilizing biological agents to overcome these problems. This study aimed to select candidates for bacterial degumming from ramie bark and to optimize the biodegumming method using pectinolytic bacterial isolates. Pectinolytic bacteria were isolated from composted ramie bark using pectinase screening agar medium (PSAM). The bacterial isolates were then used as biodegumming agents using several optimization parameters, including pH (8.5 and 9.0), temperature (25 °C and 37.5 °C), type of isolate (Pe-Ku 1; Pe-Ku 4; and Pe- Ku 6) and the amount of inoculum (1/50 mL, 2/50 mL, and 3/50 mL). After incubation for three days, the ramie fiber was washed, and then measured the dry weight to determine the weight reduction. The statistical analysis was performed using two-way ANOVA with Duncan as the post hoc test. The results showed that nine isolates of pectinolytic bacteria were obtained as bacterial degumming agents. In addition, based on the optimization of the biodegumming method, the optimum conditions were obtained at pH 8.5, temperature 37.5 °C, and the amount of inoculum 3/50 mL using the Pe-Ku 6 isolate. That was indicated by the percentage of ramie weight loss, which was significantly higher than the other combination treatments, 12,7%.
Optimasi Proses Biodegumming Serat Rami (Boehmeria nivea) Menggunakan Bakteri Pektinolitik Muhammad Abdul Aziz; Fauziatul Fitriyah; Priyono Priyono; Siswanto Siswanto
Al-Kauniyah: Jurnal Biologi Vol 16, No 1 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i1.20386

Abstract

AbstrakProses degumming serat rami umumnya dilakukan menggunakan senyawa alkali dalam jumlah besar, sehingga dihasilkan limbah berlebih dan berakibat pada pencemaran lingkungan. Oleh sebab itu, metode alternatif dengan memanfaatkan agensia hayati untuk mengatasi permasalahan tersebut penting untuk dikembangkan. Penelitian ini bertujuan untuk melakukan seleksi kandidat bacterial degumming dari kulit batang rami serta optimasi metode biodegumming menggunakan isolat bakteri pektinolitik. Bakteri pektinolitik diisolasi dari kulit batang  rami yang terkomposkan menggunakan media seleksi pektinase (PSAM). Isolat bakteri yang diperoleh kemudian digunakan sebagai agensia biodegumming menggunakan beberapa parameter optimasi meliputi pH (8,5 dan 9), suhu (25 °C dan 37,5 °C), jenis isolat (Pe-Ku 1, Pe-Ku 4, dan Pe-Ku 6) dan jumlah inokulum (1/50 mL, 2/50 mL, dan 3/50 mL). Setelah inkubasi selama 3 hari, serat rami dicuci kemudian ditimbang bobot kering untuk mengetahui penurunan bobotnya. Analisis statistik dilakukan menggunakan two-way ANOVA dengan uji lanjut Duncan. Hasil penelitian menunjukan bahwa telah diperoleh 9 isolat bakteri pektinolitik sebagai agensia bacterial degumming. Berdasarkan optimasi metode biodegumming telah diperoleh kondisi optimum yaitu pada pH 8,5; suhu 37,5 °C; serta jumlah inokulum 3/50 mL dengan mengggunakan isolat Pe-Ku 6. Hal tersebut ditandai dengan penurunan bobot rami yang secara signifikan lebih tinggi dibandingkan kombinasi perlakuan lain, yaitu sebesar 12,7%. Kata kunci: Bakteri degumming; Bakteri pektinolitik; Kulit batang rami; Serat rami AbstractThe degumming process of ramie fiber is generally carried out by using large amounts of alkaline compounds, causing excessive waste and environmental pollution. Therefore, it is essential to develop alternative methods by utilizing biological agents to overcome these problems. This study aimed to select candidates for bacterial degumming from ramie bark and to optimize the biodegumming method using pectinolytic bacterial isolates. Pectinolytic bacteria were isolated from composted ramie bark using pectinase screening agar medium (PSAM). The bacterial isolates were then used as biodegumming agents using several optimization parameters, including pH (8.5 and 9.0), temperature (25 °C and 37.5 °C), type of isolate (Pe-Ku 1; Pe-Ku 4; and Pe- Ku 6) and the amount of inoculum (1/50 mL, 2/50 mL, and 3/50 mL). After incubation for three days, the ramie fiber was washed, and then measured the dry weight to determine the weight reduction. The statistical analysis was performed using two-way ANOVA with Duncan as the post hoc test. The results showed that nine isolates of pectinolytic bacteria were obtained as bacterial degumming agents. In addition, based on the optimization of the biodegumming method, the optimum conditions were obtained at pH 8.5, temperature 37.5 °C, and the amount of inoculum 3/50 mL using the Pe-Ku 6 isolate. That was indicated by the percentage of ramie weight loss, which was significantly higher than the other combination treatments, 12,7%.
Pengaruh tiga jenis formula teknologi Sucrosin terhadap pertumbuhan dan produktivitas tebu (Saccharum officinarum L.) Muhammad Abdul Aziz; Ciptadi Ahmad Yusup; Siswanto Siswanto; Djoko Santoso; Priyono Priyono; Happy Widiastuti
Menara Perkebunan Vol. 91 No. 2 (2023): 91 (2), 2023
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v91i2.545

Abstract

Sucrosin technology, have been tested in ​​more than 10,000 ha of sugarcane planting area, resulted in highly variable increases in productivity. However, fulfilling standard operational procedures when implemented on a wide scale is complicated, so it needs to be simplified regarding product formulation and application techniques. This study aimed to evaluate the three different formulas of Sucrosin technology in increasing sugarcane growth and productivity. The study was conducted on PC sugarcane at RNI Plantation, Majalengka, West Java, using the Bululawang 1303 variety. The research design was a completely randomized design with four treatments consisting of Sucrosin technology existing (Se), formula 1 (S1), and formula 2 (S2) and control. The application of formula 2 Sucrosin technology (S2) could significantly increase the height and diameter of sugarcane stalks at 6 and 9 MAP. Sugarcane production in Se, S1, and S2 treatments increased by 22.49% (112.71 ton ha-1), 20.47% (110.85 ton ha-1), and 16.45% (107.15 ton ha-1) compared to controls (92.02 ton ha-1), respectively. These results show that Sucrosin Se technology produces the highest production. Nevertheless, from a technical perspective for implementation in the field, the most straightforward Sucrosin technology is S2. However, further research needs to be conducted in the broader area across different agro-ecologies to confirm the current findings.