The effect of Curing Process in Acetic Acid on the Gelatin Properties of Blingon Goat Skin
DOI:
https://doi.org/10.20956/jitp.v3i2.738Abstract
Bligon goat is a cross between Kacang with Ettawah goat. The skin of Bligon goat contains collagen protein compounds that have the potential to be processed into gelatin. Curing process is necessary to improve the properties of gelatin both quantitative and qualitative. The purpose of this study was to identification of the best process time and level of acetat acid as curing materials of Blingon goat skin. The skin of male Bligon goat age ±1.5-2.5 years of old and acetic acid (CH3COOH 0.5 M) were used as material. The experiment was run according to completely randomized design (CRD) with factorial pattern of 2x3 and three replications for each treatment. Two processing time (48 and 96 hours) as first factor and three concentrations levels of acetic acid (3, 6 and 9%, v/v) as the second factor. The data were analyzed by analysis of variance. Yields, gel strength and viscosity were used as parameters. The results of this study showed that the processing time up to 96 hours and level of concentration up to 9% significantly affected (P<0.01 ) gel strength, but no significantly on the yields and viscosity. The combination of processing time of 96 hours with concentration level of 3% gave the best results compared to others.Downloads
References
Anonim. 2001. Gelatin. Gelatin Manufacturers Institute of America (GMIA). http://www.gelatin_gmia.com/html/gelatine.html. [Diakses 3 Pebruari 2014]
Anonim. 2008. Gelatin sebagai Bahan Pembuat Kapsul. http://www.pkesinteraktif.com. [Diakses 3 Pebruari 2014]
Arnesen, J. A and A. Gildberg. 2002. Preparation and characterization of gelatine from the skin of harp seal (Phoca groendlandica). Biores.Tech., 82: 191-194.
Bhat, R and A. A.Karim. 2008. Ultraviolet irradiation improves gel strength of fish gelatin. Food Chemist., 113 : 1160-1164.
Giménez, B., M. C.Gómez-Guillén, and P. Montero. 2005a. The role of salt washing of fish skins in chemical and rheological properties of gelatin extracted. Food Hydrocolloids, 19: 951-957.
Giménez, B., M.C.Gómez-Guillén, and P.Montero. 2005b. Storage of dried fish skins on quality characteristics of extracted gelatin. Food Hydrocolloids, 19: 958-963.
Grobben, A. H., P. J. Steele, R. A. Somerville, and D. M. Taylor. 2004. Inactivation of the bovine-spongiform-encephalopathy (BSE) agent by the acid and alkali processes used in the manufacture of bone gelatine. Biotech. Appl. Biochem., (39): 329-338.
Hidaka, S and S. Y. Liu. 2002. Effect of gelatins on calcium phosphate precipitation: a possible application for distinguishing bovine bone gelatin from porcine skin gelatin. J. Food Composition and Analysis, 16: 477-483.
Jaswir, I. 2007. Memahami Gelatin. Artikel Iptek. www.beritaiptek.com [Diakses 2 November 2008].
Karyadi, D. 1995. Faktor-Faktor yang Mempengaruhi Mutu Kulit Mentah. Proceedings Seminar Mutu Kulit dan Produk Kulit untuk Ekspor. Balai Besar Penelitian dan Pengembangan Industri Barang Kulit, Karet dan Plastik, Yogyakarta, 62-67.
Kasankala, L. M., Y. Xue, Y. Weilong, S. D. Hong, and Q. He. 2007. Optimization of gelatine extraction from grass carp (Catenopharyngodon idella) fish skin by response surface methodology. Biores. Tech., 98 : 3338-3343.
Kolodziejska, I., K. Kaczorowski, B. Piotrowska, and M. Sadowska. 2003. Modification of the properties of gelatin from skins of Baltic cod (Gadus morhua) with transglutaminase. Food Chemist., 86: 203-209.
Leiner, P. B. 2002. The Physical and Chemical Properties of Gelatin. http://www.pbgelatin.com [26 Juni 2005]
Muyonga, J. H., C. G. B. Cole and K. G. Duodu 2003. Fourier transform infrared (FTIR) spectroscopic study of acid soluble collagen and gelatin from skins and bones of young and adult Nile perch (Lates niloticus). Food Chemist., 86(3): 325-332.
Muyonga, J. H., C. G. B. Cole and K. G. Duodu. 2004. Extraction and physico-chemical characterization of Nile perch (Lates niloticus) skin and bone gelatin. Food Hydrocolloids, 18: 581-592.
Ockerman, H. W and C. L.Hansen, C. L. 2000. Animal By Product Processing and Utilization. CRC Press, USA.
Schrieber, R and H. Gareis. 2007. Gelatine Handbook, Wiley-VCH GmbH & Co, Weinhem.
Soehaji. 1995. Potensi Penyediaan Bahan Baku Kulit untuk Industri. Proceedings. Seminar Mutu Kulit dan Produk Kulit untuk Ekspor. Balai Besar Penelitian dan Pengembangan Industri Barang Kulit, Karet dan Plastik, Yogyakarta, 1-8.
Songchotikunpan, P., J. Tattiyakul, and P. Supaphol. 2007. Extraction and electrospinning of gelatin from fish skin. Int. J. Biol. Macromolecules, 42: 247-255.
Steel, R. G. D and J. H. Torrie. 1991. Principle and Procedure of Statistics. 2nd .ed. International Book Company, Tokyo.
Verheul, M., S. P. F. M. Roefs and C. G. de Kruif. 1998. Kinetics of heat-induced aggregation of β-lactoglobulin, J. Agric and Food Chem., 46: 896–903.
Wang, L., B.Yang, R. Wang and X. Du. 2008. Extraction of pepsin-soluble collagen from grass carp (Ctenopharyngodon idella) skin using an artificial neural network. Food Chem., 111(3): 683-686.
Zeugolis, D. I., S. T. Khew, E. S. Y. Yew, A. K. Ekaputra, Y. W. Tong, L. L. Yung, D. W. Hutmacher, C. Sheppard and Michael. 2008. Electro-spinning of pure collagen nano-fibres – Just an expensive way to make gelatin? Biomaterials, 15: 2293-2305.