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All Journal PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman Jurnal Pendidikan Kimia (JPKim) Jurnal Kesmas dan Gizi (JKG) Jurnal Indah Sains dan Klinis CHEDS: Journal of Chemistry, Education, and Science Jurnal Farmanesia Jurnal Multidisiplin Madani (MUDIMA) JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal Pengmas Kestra (JPK) Jurnal ABDIMAS MUTIARA
Barita Aritonang
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Jurnal Farmanesia

 1 
PENETAPAN KADAR NATRIUM BENZOAT PADA KECAP MANIS YANG TIDAK BERMEREK SECARA ALKALIMETRI Barita Aritonang; Yossy Silalahi
Jurnal Farmanesia Vol 3 No 1 (2016): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (160.004 KB)

Abstract

Kecap adalah sari kedelai yang telah difermentasikan bahan nabati  atau hewani berprotein tinggi didalam larutan garam. Kecap biasanya ditambahkan pengawet natrium benzoat  agar lebih tahan lama dalam penyimpanan. Tujuan penelitian adalah untuk mengetahui kadar natrium benzoat pada kecap manis yang tidak bermerek apakah telah memenuhi persyaratan yang telah ditetapkan oleh Permenkes. Sampel diambil dari seluruh pedagang kecap manis yang tidak bermerekdi sekitar pasar Petisah Medan. Penentuan kadar natrium benzoat pada kecap manis tidak bermerek secara alkalimetri. Hasil penelitian menunjukkan bahwa kecap manis tidak bermerek mengandung kadar natrium benzoat yang berbeda-beda.Kadar natrium benzoat yang tertinggi adalah 707 mg/kg sedangkan yang terendah adalah 85 mg/kg. Batas maksimum yang diperbolehkan oleh Permenkes adalah 600 mg/kg.
PEMBUATAN KERTAS RAMAH LINGKUNGAN KOMBINASI LIMBAH AMPAS TAHU DAN LIMBAH KULIT PISANG KEPOK DENGAN METODE PEMISAHAN ALKALISASI Barita Aritonang; Eka M Sinaga; Supartiningsih Supartiningsih; Elly Sitorus
Jurnal Farmanesia Vol 6 No 2 (2019): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jf.v6i2.2753

Abstract

Tofu dregs waste contains 30.4% cellulose content, while kepok banana peel has high cellulose content (60-65%), hemicellulose 6-8%, and lignin 5-10%. The purpose of this study was to determine the process of making natural paper from tofu dregs waste and kepok banana peel waste as an alternative raw material for wood substitutes and to find out the characteristics of natural paper produced from tofu waste fiber and kepok banana peel waste based on SNI 287:2010 (including test water content) and SNI 6588-1:2010 (including pH acidity test). Based on the results of research that has been carried out, the optimum composition in making paper from tofu dregs and kepok banana peels is 50:50% variation. The temperature and time of heating and the optimum concentration of sodium hydroxide solution was 120 oC for 90 minutes with sodium hydroxide solution concentration of 10.0%, pulp content of 46.45%, cellulose content of 53.3%, and lignin content of 46.67%. All levels obtained have met the requirements of SNI. Based on the FT-IR spectrum analysis, tofu dregs and kepok banana peels are suitable for use as raw materials for making paper because they contain cellulose. Based on the SEM analysis, the morphological surface structure, the tighter the fiber bonds, this proves that the diameter of the resulting fiber is very small, because the smaller the fiber diameter, the better the mechanical properties.
Co-Authors Ahmad Hafizullah Ritonga Ambarwati, Nova Florentina Cut Masyitah Thaib Cut masyithah Debi Meilani Eka M Sinaga Eka Magareta Sinaga Eka Margareta Sinaga Eka Margareta Sinaga Eka Margareth Sinaga Eka Margaretha Sinaga Elly Sitorus Erdiana Gultom Erdiana Gultom Erdiana Gultom Erdiana Gultom Erdiana Gultom Erdiana Gultom Ernita Siagian Fadlilah Widyaningsih Hasni Yaturramadhan Harahap Hendri Faisal Herlina . Hermansyah Aziz Hestina . Hestina Hestina Hestina Hestina Hestina Hestina Karnirius Harefa Karnirius Harefa Lenny Novita Liver Iman Putra Zai Nova Florentina Nova Florentina Ambarwati Nova Florentina Ambarwati Nova Florentina Ambarwati Nova Florentina Ambarwati Novesar Jamarun Rahmad Gurusinga Riah Ukur Ginting Rima Anggeraini Rotua Sumihar Sitorus Salomo Sijabat Sinaga, Eka Margaretha Suarnikan Hulu Supartiningsih Supartiningsih Syukri Arief Tamrin Tamrin Yossy Silalahi Yulidar Laila Safitri Yunita Sari