TOTAL PROBIOTIK DAN SIFAT KIMIAWI FROZEN YOGHURTPADA PENYIMPANAN BEKU

Antonia Nani Cahyanti, Adi Sampurna

Abstract


Tujuan penelitian ini untuk mengetahui viabilitas L.casei dalam yogurt susu kambing dan karakteristiknya selama penyimpanan beku. Yogurt dibuat menggunakan starter probiotik L.casei, disimpan dalam freezer selama 0,2,4,6 hari, dan dievaluasi pH, total asam, dan total probiotik. Hasil penelitian menunjukkan bahwa terjadi penurunan total probiotik  secara signifikan pada penyimpanan hari ke-2, yang ditandai dengan penurunan total asam, total probiotik, dan  peningkatan pH. Diduga terjadi fenomena adaptasi probiotik terhadap kondisi penyimpanan beku setelah hari ke-2 penyimpanan, yang ditandai dengan peningkatan total probiotik, total asam, dan penurunan pH.

The aim of this research was to study the viability of L.casei in yoghurt from goat’s milk and its characteristic during frozen storage. Yogurts were made with L.casei as a probiotic starter, stored in freezer for 0,2,4,6 days, and evaluated for for pH, titratable acidity, and probiotic count. The results showed that probiotic growth is decreased just on the 2nd day of storage significantly, and it was marked with the decreasing of acidity, probiotic count and the increasing of pH.  The probiotic seemed to be adaptive with the freezing condition after the 2nd day of storage until the 6th day of storage. It was marked with the increasing of probiotic count, acidity, and the decreasing of pH.


Keywords


yoghurt,probiotic,frozen storage

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References


Abu-Taraboush, H.M., M.M. Al-Dagal, dan M.A. Al Royli. 1998. Growth, Viability, and Proteolitic Activity of Bifidobacteria in Whole Camel Milk. J.Dairy Sci. 81:354-361.

Bintoro, V.P.2009. Pangan Antara Kebutuhan dan Ancaman. Badan Penerbit Universitas Diponegoro, Semarang.

Bozanic, R. dan L. Tratnick. 2001.Quality of Cow’s and Goat’s Fermented Bifido Milk During Storage. Food Technol.Biotechol.39(2):109-114.

Cahyanti, A.N. 2008. Karakteristik Susu Kambing Fermentasi Menggunakan Starter Probiotik Lactobacillus acidophilus Pada Lama Penyimpanan yang Berbeda. Magister Ilmu Ternak Universitas Diponegoro. Semarang. Tesis. (Tidak dipublikasikan).

Davidson, R.H., S.E.Duncan, C.R.Hackney, W.N.Eigel, J.W.Boling. 2000. Probiotic Culture Survival and Implications in Fermented Frozen Yoghurt Characteristics. J.Dairy Sci. 83(4) : 666-673.

Desai, A. 2008. Strain Identification, Viability and Probiotics Properties of Lactobacillus casei. School of Biomedical Science and Health Science, Victoria University. Victoria. Australia. Disertasi.

Gilliland, S.E. dan M.Nostian. 2010. Cellular Component of Kluyveromyces fragilis Related to Survival During Frozen Storage.

Hekmat, S, dan D.J.Mc.Mahon. 1992. Survival of Lactobacillus acidophilus and Bifidobacterium bifidum in Ice Cream for Use as a Probiotic Food. J.Dairy Sci. 75:1415-1422.

Heller, K.J.2001. Probiotic Bacteria in Fermented Foods : Product Characteristics and Starter Organism. Am.J.Clin.Nutr. 73(suppl) : 374S-9S.

Law, B.A. 1997. Microbiology and Biochemistry of Cheese and Fermented Milk. 2nd Edition. Blackie Academic and Professional. London.

Legowo, A.M., Nurwantoro, dan Sutaryo. 2005. Analisis Pangan. Badan Penerbit Universitas Diponegoro. Semarang.

Moat, A.G. dan J.W.Foster.1998. Microbial Physiology. John Wiley & Sons inc. Singapore.

Nighswonger, B.D, M.M.Brashears, dan S.E. Gilliland. 1996. Viability of L.acidophilus and L.casei in Fermented Milk Product During Refrigerated Storage. J.Dairy Sci. 79:212-219.

Nurfitasari, A. 2006. Kualitas Asidophilus Milk Berbahan Dasar Susu Kambing dengan Penambahan Tepung Albumen. Fakultas Peternakan Universitas Gadjah Mada, Yogyakarta. Skripsi Sarjana Peternakan (Tidak Dipublikasikan).

Shah, N.P.2000. Symposium : Probiotic Bacteria : Selective Enumeration and Survival in Dairy Foods. J.Dairy Sci. 83:894-907.

Soro, A.A., K.M.Dje, dan P.Thonart. 2010. An Improved Test to Study the Changes in Membran Permeability During Rehydration of Freeze-Dried Weissella paramesenteroides LC11. The Open Biotechnology Journal (4):8-13.

Sudarmadji, S., B.Haryono, dan Suhardi. 1997. Prosedur Analisa untuk Bahan Makanan dan Pertanian. Edisi ke-4. Liberty. Yogyakarta.

Tamime, A.Y. dan R.K. Robinson. 1985. Yoghurt : Science and Technology. Pergammon Press. New York.

Yousef, A.E. dan V.K. Juneja. 2003. Microbial Stress Adaptation and Food Safety. CRC Press. New York.




DOI: http://dx.doi.org/10.26623/jtphp.v12i1.481

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