Efektivitas Suplementasi Agensia Probiotik Lactobacillus acidophilus SNP-2 pada Pembuatan Tape Ketan dan Brem

https://doi.org/10.22146/agritech.9791

Siti N. Purwandhani(1*), Endang S. Rahayu(2), Made Suladra(3)

(1) Jurusan Teknologi Pangan dan Gizi, Fakultas Teknologi Pertanian, Universitas Widya Mataram, Jl. Ndalem Mangkubumen Kp. III/237, Yogyakarta
(2) Jurusan Teknologi Pangan dan Hasil Pertanian, Fakultas Teknologi Pertanian, Universitas Gadjah Mada, Yogyakarta, Jl. Sosio Yustisia, Bulaksumur, Yogyakarta 55281
(3) Jurusan Teknologi Pangan dan Gizi, Fakultas Teknologi Pertanian, Universitas Widya Mataram, Jl. Ndalem Mangkubumen Kp. III/237, Yogyakarta
(*) Corresponding Author

Abstract


A biomass of selected Lactobacillus acidophilus SNP-2 was added to the steamed waxy rice before fermentation, and towaxy rice tapuy after fermentation. For supplementation to white solid brem  the LAB was added to the pasta of waxy rice tapuy before molding and drying. The drying of pasta were carried out by sun drying and  cabinet dryer at 37-38 oC. The probiotic tapuy was kept at room temperature for 3 days, and in a refrigerator at 4 oC for 14 days. The sun dried brem was kept for 3 weeks and the artificial dried brem for 8 weeks at room temperature. The samples were taken periodically to analyse the population and stability of the probiotic organism, and to evaluate organoleptic properties using hedonic scale test. The result showed that Lactobacillus acidophilus SNP-2 supplementation to the rice before fermentation was more effective than that to the tapuy after fermentation. This was based on the observation on the increase of the LAB population after tapuy fermentation, and decrease of the population in the tapuy added with LAB. Keeping tapuy at room temperature for 3 days and at refrigerator for 14 days resulted in the LAB population of 1,2x107CFU/g - 1,5x108 CFU/g which met the requirement for probiotic food. Population of LAB on the brem after drying was showed by the survival cells, i.e. 6.4x106 CFU/g after sun drying and 5.2x107 CFU/g after artificial drying, respectively. After keeping at room temperature for 3 weeks the population of LAB in the sun dried brem was less than that required for probiotic food, i.e. 5.2x103  CFU/g, while that of the artificial dried brem after keeping for 8 weeks was 3.3x105CFU/g. The probiotic isolates taken from the tapuy and brem had the ability to inhibit the growth of Escherisia coli and Salmonella sp. Either fresh and kept the tapuy and brem were acceptable by panelists, therefore waxy rice tapuy and white solid brem are potential for probiotic foods.

ABSTRAK

Penelitian dilakukan dengan mensuplementasi biomassa agensia probiotik terseleksi Lactobacillus acidophilus SNP-2pada alur pembuatan tape ketan yaitu pada sebelum dan sesudah fermentasi, sedangkan pada pembuatan brem dita- mbahkan pada pasta brem sebelum pencetakan, dan pengeringan dilakukan menggunakan sinar matahari dan cabinet dryer (37 -38oC). Tape ketan probiotik disimpan pada suhu ruang selama 3 hari dan di dalam refrigerator (4oC) selama14 hari. Sedangkan brem yang dikeringkan dengan sinar matahari disimpan selama 3 minggu dan untuk yang diker- ingkan menggunakan cabinet dryer disimpan selama 8 minggu.  Pada setiap interval waktu penyimpanan dilakukan analisa viabilitas dan stabilitas sel probiotik. Untuk mengetahui penerimaan konsumen dilakukan uji organoleptik menggunakan metoda Hedonic scale test. Hasil penelitian menunjukkan bahwa suplementasi Lactobacillus acidophi- lus SNP-2 pada tape ketan lebih efektif ditambahkan sebelum fermentasi dibandingkan dengan penambahan sesudah fermentasi, jumlah sel sebelum fermentasi relatif lebih tinggi dibandingkan sesudah fermentasi. Selama penyimpanan pada suhu ruang selama 3 hari dan di dalam refrigerator selama 14 hari, jumlah BAL dalam tape masih dalam batas syarat makanan probiotik, yaitu 1,2x107 CFU/g - 1,5x108 CFU/g. Viabilitas BAL pada brem yang dikeringkan dengan sinar matahari 6,4x106 CFU/g dan yang dikeringkan dengan cabinet dryer 5,2x107 CFU/g. Setelah disimpan selama 3 minggu jumlah BAL brem yang dikeringkan matahari sudah tidak memenuhi syarat sebagai makanan probiotik karena jumlah sel 5,2x103  CFU/g sedang yang dikeringkan cabinet dryer setelah 8 minggu 3,3x105 CFU/g. Isolat probiotik dari tape dan brem mempunyai daya penghambatan terhadap Escherichia coli dan Salmonella sp. Tape ketan dan brem probiotik segar maupun telah jadi, selama penyimpanan secara organoleptik disukai panelis. Jadi tape dan brem padat putih mempunyai potensi sebagai makanan pembawa agensia probiotik.


Keywords


Probiotic; suplementation method; traditional food

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DOI: https://doi.org/10.22146/agritech.9791

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