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All Journal Jurnal Ilmiah Teknologi Pertanian Agrotechno
I Wayan Arnata
Program Studi Teknologi Industri Pertanian, Fakultas Industri Pertanian, Universitas Udayana, Bali
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

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Pengaruh Konsentrasi Natrium Hidroksida terhadap Karakteristik Selulosa Mikrobia dari SCOBY Balia Dwiki Yusuf Fachriza; I Wayan Arnata; Luh Putu Wrasiati
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol. 9 No. 1 (2024): April
Publisher : Fakultas Teknologi Pertanian, Universitas Udayana Gedung GA, Fakultas Teknologi Pertanian, Universitas Udayana Jl. Raya Bukit Jimbaran, Jimbaran, Kuta Selatan, Bali Telp/Fax: (0361) 701801

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA/2024.v09.i01.p03

Abstract

Selulosa mikrobia adalah selulosa yang dihasilkan dari proses fermentasi dengan melibatkan bakteri dan yeast, memiliki potensi yang besar sebagai bahan baku alternatif pengganti serat sintetis. Penelitian ini bertujuan untuk mengetahui pengaruh NaOH terhadap karakteristik selulosa mikrobia dan menentukan konsentrasi NaOH yang menghasilkan karakteristik selulosa mikrobia terbaik. Penelitian ini menggunakan Rancangan Acak Kelompok dengan perlakuan variasi konsentrasi NaOH yang terdiri dari 6 taraf yaitu (0%; 5%; 10%; 15%; 20%; 25% b/v). Masing-masing perlakuan dikelompokkan menjadi 3 berdasarkan waktu pembuatan selulosa mikrobia sehingga diperoleh 18 unit percobaan. Variabel yang diamati yaitu ketebalan, kuat tarik, perpanjangan saat putus, elastisitas, dan pengembangan tebal. Data yang diperoleh dianalisis keragamannya dan dilanjutkan dengan Uji Beda Nyata Terkecil. Hasil penelitian menunjukkan bahwa konsentrasi NaOH berpengaruh nyata terhadap terhadap nilai kuat tarik, perpanjangan saat putus (elongation at break), elastisitas dan pengembangan tebal (swelling), namun berpengaruh tidak nyata terhadap ketebalan selulosa mikrobia. Konsentrasi NaOH 15% (b/v) menghasilkan karakteristik selulosa mikrobia terbaik dengan nilai kuat tarik 39,63±1,33 Mpa; perpanjangan saat putus yaitu 6,43±0,35%; elastisitas 607,98±26,26 Mpa dan pengembangan tebal yaitu 126,19±2,06%.
Desain Sistem Informasi Pemasaran Produk Agroindustri Berbasis Website Edukasi Pada Gapoktan Minggirsari Blitar I Wayan Arnata; I Ketut Satriawan; G. W. Wirayuda
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol. 8 No. 1 (2023): April
Publisher : Fakultas Teknologi Pertanian, Universitas Udayana Gedung GA, Fakultas Teknologi Pertanian, Universitas Udayana Jl. Raya Bukit Jimbaran, Jimbaran, Kuta Selatan, Bali Telp/Fax: (0361) 701801

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA/2023.v08.i01.p05

Abstract

The rapid development of internet technology in the modern era has not been fully utilized by farmers resulting in economic disparities among farmers due to product sales through extended supply chains so that there are significant differences in prices for agro-industrial commodities at the farmer and market levels. Meanwhile, farmers are still less interested in reading, resulting in limited knowledge of processing agricultural products to increase economic value. The research aims to design a sales and education system and produce a website for marketing agro-industry products based on an educational website that is good enough. The study was carried out in several stages, namely problem identification, website design using the waterfall method, website testing using the black box method, making questionnaires based on the user acceptance test (UAT), validity and reliability tests, distributing website acceptance questionnaires by users based on the user acceptance test (UAT) and data processing. The research results are to get a website design that combines sales and education systems in one website that is already running well by getting a 100 percent score when tested internally using the black box method. Website acceptance test by users using the user acceptance test (UAT) method results in a design factor of 77.86%, a content factor of 78.75%, and a usability factor of 78.24%. The real test for the entire website scores 78.2% and is included in the good category to be accepted in society.
Co-Authors Balia Dwiki Yusuf Fachri Balia Dwiki Yusuf Fachriza G. W. Wirayuda I Ketut Satriawan Luh Putu Wrasiati