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All Journal Sainteks Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Proceeding Seminar LPPM UMP Tahun 2014 PROSIDING SENATEK FAKULTAS TEKNIK UMP Jurnal Ilmu Kefarmasian Indonesia Agritech: Jurnal Fakultas Pertanian Universitas Muhammadiyah Purwokerto JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Jurnal Peduli Masyarakat Proceedings Series on Physical & Formal Sciences Techno Research In Chemical Engineering Jurnal Teknik Kimia dan Lingkungan Jurnal Pengabdian Teknik dan Sains (JPTS) Journal of Society, Community and Business Development
Neni Damajanti, Neni
Universitas Muhammadiyah Purwokerto
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Journal : Techno

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Pengaruh Jumlah Siklum HEM (High Energy Milling) Pada Karakteristik MFC (Microfibrillated Cellulose) Dari Sekam Padi Anwar Maruf; Neni Damajanti
Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Vol 21, No 1 (2020): Techno Volume 21 No.1 April 2020
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/techno.v21i1.5387

Abstract

MFC merupakan selulosa yang sudah mengalami proses lanjut yaitu refinerdan homogenizer sehingga ukurannya berskala nanometer (nm). Proses pembuatanMFC dapat dilakukan secara mekanik, yaitu dengan memanfaatkan refiner, highpressure homogenizer dan gelombang ultrasonic. Selain dengan metode mekanik,pembautan MFC juga dapat dilakukan dengan metode enzimatis. MFC dapatdigunakan sebagai komposit pada berbagai bidang seperti industri makanan, cat,kosmetik dan medis. Pemanfaatan selulosa sekam padi dalam pembuatan MFC belumbanyak dilakukan. Proses penting dalam pembuatan MFC sekam padi adalah prosesdelignifikasi untuk menghilangkan lignin dan silika, proses bleaching dan prosespenggilingan. Pada penelitian ini akan dikaji pengaruh konsentrasi hydrogenperoksida, temperature bleaching dan waktu penggilingan. Optimasi variabel dapatdilakukan dengan menggunakan Response Surface Metodology (RSM). Hasilpenelitian menunjukkan kondisi optimum untuk proses delignifikasi adalah padaperbandingan volume/berat sekam sebesar 9, konsentrasi H2O2 1,5% dan pH 11,5.Variabel yang signifikan terhadap kadar lignin adalah diketahui yang signifikanterhadap kadar lignin adalah pH (linier), rasio V/w (kuadratik), konsentrasi H2O2(kuadratik) dan pH (kuadratik). Proses HEM sangat berpengaruh pada karakteristikMFC. Semakin banyak siklus HEM, maka gugus aktif MFC akan semakin banyak.
KAJIAN SIFAT FISIK FILM TIPIS NATA DE SOYA SEBAGAI MEMBRAN ULTRAFILTRASI Endar Puspawiningtiyas; Neni Damajanti
Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Vol 12, No 1 (2011): Techno Volume 12 No 1 April 2011
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.346 KB) | DOI: 10.30595/techno.v12i1.23

Abstract

“Whey” is one of liquid waste water that was produced from tofu making process. There are many research that process whey to waste water that ready to dispose. One of whey utilization to product that more useful is as of nata making raw material, that often called nata de soya. The contain of nata is cellulose (Bergenia,1982). Cellulose that produced via fermentation process by bacteria often called microbial cellulose. Based of physic and chemical properties that owned by microbial cellulose, be required a study about possibility nata de soya as separated membrane especially ultrafiltration membrane. The Goal of this research are to study about influence of NaOH and H2SO4 concentration to density, swelling degree, water flux, nata de soya membrane rejection. The result of this research show that NaOH and H2SO4 treatment influence to phisical and chemical properties of nata de soya thin layer. Greatest density and smallest swelling degree are 0,94gr/cm3 and 210% at NaOH 6 % treatment. Greatest density and smallest swelling degree are 0,92gr/cm3 and 216% at H2SO4 8 % treatment. Flux value generated at several NaOH concentration average 18,89 Lm-2jam-1bar-1. By Murder (1996), ultrafiltration membrane has operational presure range 1.0 – 5.0 bar and water flux 10 -50 Lm-2jam-1bar-1, thus flux test result show that nata de soya thin layer adequate as ultrafiltration membrane. Smallest water flux value is obtained at NaOH 6 % concentration is 15.68 Lm-2jam-1bar-1. Fluctuating graph at influence of NaOH concentration to rejection coefficient has not been able to conclude best treatment to obtain maximum rejection coefficient, but overall average rejection coefficient at NaOH treatment to nata de soya thin layer is 47,6%. Keyword : ultrafiltration membrane, nata de soya
Co-Authors Abdul Haris Mulyadi Alwani Hamad amir - Amiratus Sholikhah, Amiratus Anis Shofiyani Anis Shofiyani Anwar Ma'ruf Anwar Maruf Anwar Maruf Anwar Ma’ruf Darodjat, Darodjat Dini Nur Afifah Dini Nur Afifah Dini Nur Afifah Dini Nur Afifah Elia Trisnawati Endar Puspawiningtiyas Endar Puspawiningtiyas Endar Puspawiningtiyas Erny Rachmawaty Farisi, Muhammad Faqih Al Fitri Atyani, Fitri Ganda Kurniawan Ganda Kurniawan, Ganda Hanafi Khafid Nugraha Hariyanti Hariyanti Hariyanti Hariyanti Maulani Mustholidah Maulani Mustholidah Regawa Bayu Pamungkas santosa, Arif Prashadi Titik Kusumawinakhyu Ubaidillah, Saad