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All Journal Majalah Kulit, Karet, dan Plastik Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Ragil Yuliatmo
Department of Leather Processing Technology, Politeknik ATK Yogyakarta
Arts Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Social Sciences

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FTIR-PCA analysis as an initial analysis to distinguish the origin of skin and leather Ragil Yuliatmo; R. Lukas Martindro Satrio Ari Wibowo; Wisnu Pambudi; Sofwan Siddiq Abdullah; Thoyib Rohman Hakim; Yuny Erwanto
Majalah Kulit, Karet, dan Plastik Vol 37, No 1 (2021): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20543/mkkp.v37i1.6348

Abstract

Leather products are parts of daily fashion in Indonesia, such as bags, shoes, jackets, and gloves. Adulteration of raw materials for leather products can occur if there are no labels on these products. Various methods such as PCR, GC-MS, HPLC, and FTIR have been carried out to distinguish the origin of leather products. The FTIR method is known as an easy and inexpensive method to use. The objective of this study was to evaluate the capability of FTIR spectroscopy and Principle Component Analysis (PCA) for lipid identifcation and initial analysis to distinguish the original materials on leather products. Lipid extracts obtained from the various skin were scanned using an FTIR spectrophotometer at 4000–450 cm-1. It resulted in spectral differences in several wavenumbers (3000-2800 cm-1 and 1200-1000 cm-1). The same result is also found in lipid spectra from leather product extraction. The FTIR spectroscopy and PCA can differentiate pigskin and goatskin through specifc peaks in infrared spectra. This can be used as an initial analysis on determining the existence of skin adulteration in leather products. This study is prospective to be continued by chemometrics as quantitative analysis.
OPTIMASI DOSIS POLI ALUMUNIUM CLORIDA (PAC) UNTUK PENGOLAHAN LIMBAH PENYAMAKAN KULIT PADA PROSES KOAGULASIFLOKULASI Nanda Brilian Tantri; Swatika Juhana; Ragil Yuliatmo
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 22 No 1 (2023): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.902 KB) | DOI: 10.58533/bptkspk.v22i1.193

Abstract

Tujuan penelitian ini untuk mengetahui dosis optimum koagulan PAC pada pengolahan limbah penyamakan kulit proses koagulasi-flokulasi. Penelitian dilakukan dengan metode jar tes untuk mengolah limbah cair penyamakan kulit secara koagulasi-flokulasi. Koagulasi dilakukan dengan variasi dosis koagulan PAC 1%, 2%, 3%, 4%, dan 5% masing-masing 5 mL dimasukkan ke dalam gelas beaker berisi 300 mL limbah cair penyamakan kulit. Koagulasi dilakukan dengan pengadukan cepat 100 rpm selama 1 menit. Selanjutnya dilakukan flokulasi dengan menggunakan polielektrolit baseflok 1% masing-masing 3 mL. Flokulasi dengan pengadukan lambat 25 rpm selama 15 menit. Hasil jar tes diukur turbiditas, pH, dan dilihat jenis floknya. Hasil penelitian menunjukkan bahwa dosis optimum koagulan PAC untuk mengolah limbah penyamakan kulit adalah PAC 2% sebanyak 5 mL untuk volume limbah 300 mL, pada pH 7. Hasil ini dapat dikonversi ke dalam gram PAC/volume limbah yaitu 0,1 gram PAC/300 mL limbah atau 0,33 gram PAC/1L limbah cair penyamakan kulit.
Co-Authors Nanda Brilian Tantri R. Lukas Martindro Satrio Ari Wibowo Sofwan Siddiq Abdullah Swatika Juhana Thoyib Rohman Hakim Wisnu Pambudi Yuny Erwanto