INITIAL ANALYSIS OF PIGSKIN ADULTERATION ON LEATHER PRODUCTS USING FTIR SPECTROSCOPY

Ragil Yuliatmo, - and Wisnu Pambudi, - and Thoyib Rahman Hakim, - and RLM Satrio Ari Wibowo, - and Dwi Wulandari, - and Yuny Erwanto, - INITIAL ANALYSIS OF PIGSKIN ADULTERATION ON LEATHER PRODUCTS USING FTIR SPECTROSCOPY. The 3rd International Symposium Toward Halal Global.

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Abstract

Leather products are part of daily fashion in Indonesia, such as bags, shoes, jackets, gloves, etc. Adulteration of raw materials for leather products can occur if there are no labels on these products. The existence of certain religion / belief that prohibit adherents from using certain materials, such as pork skin. Detection of adulteration has been carried out in various ways such as by PCR, GC-MS, HPLC, and FTIR methods. 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 for lipid identification and initial analysis to detection of pig skin on leather proucts. Lipid extracts obtained from the various skin were scanned using FTIR spectrophotometer at 4000–500 cm-1. It resulted spectral differences in several wavenumber (2951-3258 cm-1 and 1046-1428 cm-1). At wavenumber 3020-2980 cm-1 there is a peak only in lard. The same result is also found in lipid spectra from leather products extraction. The FTIR spectroscopy is able to differentiate pigskin from goat and sheep skins through specific 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 a quantitative analysis

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