The Pyrolysis Reactor Design and The Effect of Liquid Smoke from Coconut Shell on Microbial Contamination of Tofu

Main Article Content

Ayu Ratna Permanasari
Politeknik Negeri Bandung

Keywords

Coconut shell, Tofu, Liquid smoke, Microbial Contamination

Abstract

Liquid smoke is a natural food preservative which can be made of coconut shells through the pyrolysis process. This study aimed to design a pyrolysis reactor and utilize the coconut shell waste to produce liquid smoke as a natural preservative of tofu. 1.5 kg of chopped coconut shell was pyrolyzed at 400C for 5 hours and produced 488 mL of grade 3 liquid smoke with a yield of 34.23%. The liquid smoke was then purified by extraction using ethyl acetate (1: 1 ratio) solvent and 70C temperature for 2 hours. The extract was then distilled at 80C and produced grade 1 liquid smoke. This liquid smoke had an acid content of 12.26% and a phenol content of 0.73%. This liquid smoke was then applied to tofu for 3 days and analyzed the microbial contamination. The smallest amount of microbial contamination was found in the samples of yellow tofu and white tofu coated with liquid smoke and stored in the refrigerator for 1.4 × 105 CFU / mL and 8 × 103 CFU/ml.

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References

National Food and Drug Agency. (2006). Food Category. Jakarta: Directorate of Food Standardization (in Bahasa)
National Standardization Agency, (1998). SNI 01-3142-1998. Quality Standard of Tofu. Jakarta: BSN. (in Bahasa)
Darmadji, P. (1996). Antibacterial Activity of Liquid Smoke Produced from Various Agricultural Wastes. Agritech, 16 (4), 19-22. (in Bahasa)
Diatmika, I. G. N. A.Y. A., Kencana, P. K.D., Arda, G. (2019). Liquid smoke Characteristics of Tabah Bamboo Stem (Gigantochloa nigrociliata BUSE-KURZ) in The Different Temperatures of Pyrolysis. BETA (Biosistem dan Teknik Pertanian) Journal, Vol. 7, No. 2, pp. 278-285 (in Bahasa)
Djide, N. (2007). Basics of Microbiology. Makassar: Department of Farmasi, Hasanuddin University. (in Bahasa)
Folin, O., & Ciocalteu, V. (1994). On Tyrosine and Tryptophane. Determinations in Proteins. Jour.Bio.Chem, 627-650.
Girard, J.P. (1992). Smoking in the Technology of Meat Products. New York: Clermont Ferrand, Ellis Horwood.
Harmayani, E., Rahayu, E. S., Djaafar, T. F., & Sari, C. A. (2009). Utilization culture Pediococcus acidilactici F-11 as The Bacteriocin Growth as The Coagulant on on Tofu Production. Post Harvest Journal, 6(1), 10-20. (in Bahasa)
Haji, A. G., Mas’ud, Z. A., Lay, B. W., Sutjahyo, S. H. and Pari, G. (2007). Characterization of Liquid Smoke from Pyrolysis of Solid Organic Waste. Industrial Engineering Journal, Vol. 16, No.3, pp 111-118. (in Bahasa)
Hernani & Rahardjo, M. (2005). Plants with Antioxidant. Jakarta: Penebar Swadaya.
Joseph, G.H., and Kindangen, J.G., Potential and Opportunities for the Development of Shell, Coir and Coconut Trunks for The Raw Materials. 3rd Conference Proceeding of Coconut.
Khoerudin, A. R. (2017). Study of Formalin Content in Tofu with Quantitative and Qualitative Methods in Bandung. Bandung: Food Technology Study Program, Pasundan University. Bandung. (in Bahasa)
Koswara, S. (2011). Nutritional Value, Preservation, and Processing of Tofu. Jakarta: 1. (in Bahasa)
Nasruddin (2015) Characteristics of Liquid Smoke with the Aroma of Pandan Wangi Leaves. Journal of Industrial Research Dynamics, Vol. 26 No. 1. Pp 19-31. (in Bahasa)
Orak, H. (2006). Total Antioxidant Activities, phenolics, Anthocyanins, Polyphenoloxdase Activities and its Correlation of Some Important Red Wine Grape Varieties which are Grown in Turkey. EJPAU 9, 18.
Pamungkas, R. W. (2007). Study of Coconut Shell Pyrolysis Process for Liquid Smoke Production (Natural Preservative). National Seminar on Environment, Muhammadiyah Purwokerto University. ISBN: 978-979-704-727-6, pp24-27. (in Bahasa)
Pearson, A., & Taube, E. (1973). Processed Meat. The Avi Publishing Company Inc., Westport, Connecticut
Siddiqui, M., & Redhwi, H. (2009). Pyrolysis of Mixed Plastic for The Recovery of Useful Products. Fuel Processing Technology. 90, 545-552.
Simko, P. Factors affecting elimination of polycyclic aromatic hydrocarbons from
smoked meat foods and liquid smoke flavorings. Molecular Nutrition & Food Research, (2005), 49, pp. 637–647.
Sutin. (2008). Production of liquid smoke from shells and coconut coir by pyrolysis and its fractionation by extraction. Research Report on Agricultural Technology Study Program IPB Bogor. (in Bahasa)
Termal Internasional Co, Ltd-Bahasa Indonesia, (http://id.thermal-controller.com/info/what-is-the-advantages-disadvantages-of-the-23119770.html).
Tranggono,S., B. Setiadji, P. Darmadji, Supranto, and Sudarmanto. (1997). Identification of liquid smoke from various types of wood and coconut shells. Journal of Food Science and Technology, Vol. 1 No.2, pp 15-24. (in Bahasa)
Winarno, F. (2004). Food Chemistry and Nutrition. Jakarta: Gramedia Pustaka Utama. (in Bahasa)
Yunus, M. (2011). Technology of Liquid Smoke Production from Coconut Shell as a Food Preservative. Journal of Science and Innovation Vol 7 No. 1, pp. 53-61. (in Bahasa)
Yusnaini and Rodianawati, I. (2014). Production and quality of liquid smoke from various types of raw materials. SNaPP2014 Science, Technology, and Health Proceeding. ISSN: 2089-3582, Vol. 4, No.1, pp 253-260. (in Bahasa)
World Health Organization & International Programme on Chemical Safety. (‎1994)‎. Phenol: health and safety guide. World Health Organization.

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Published
Oct 1, 2020
DOI https://doi.org/10.35313/ijatr.v1i2.28

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Permanasari A. The Pyrolysis Reactor Design and The Effect of Liquid Smoke from Coconut Shell on Microbial Contamination of Tofu. IJATR [Internet]. 1Oct.2020 [cited 16Apr.2024];1(2):128 -139. Available from: https://ijatr.polban.ac.id/ijatr/article/view/28
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Vol 1 No 2 (2020)
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