Febrihantana, Winedy (2014) Pengaruh Penambahan Sari Wortel Sebagai Fortifikasi Produk Yogurt Ditinjau Dari Nilai Ph, Total Asam Tertitrasi, Total Bakteri Asam Laktat, Viskositas Dan Total Karoten. Sarjana thesis, Universitas Brawijaya.
Abstract
Sari wortel mengandung karoten sebagai provitamin A dan diduga dapat menstimulasi pertumbuhan serta meningkatkan aktivitas bakteri asam laktat (BAL). Tujuan penelitian ini adalah untuk mengetahui pengaruh penambahan sari wortel terhadap produk peternakan khususnya yogurt yang ditinjau dari nilai pH, total asam tertitrasi, total bakteri asam laktat, viskositas dan total karoten. Metode yang digunakan dalam penelitian ini adalah metode percobaan dengan menggunakan rancangan acak lengkap (RAL) sederhana dengan 4 perlakuan dan 3 ulangan, apabila terdapat pengaruh perlakuan dilanjutkan dengan Uji Jarak Berganda Duncan. Bakteri Lactobacillus bulgaricus dan Streptococcus thermophillus sebanyak 3% dalam proses pembuatan yogurt. Bahan yang digunakan adalah susu segar yang ditambahkan sari wortel sebanyak 0% (P0), 5% (P1), 10% (P2), 15% (P3) dan selanjutnya dilakukan pasteurisasi sebelum difermentasi dan inkubasi suhu kamar sehingga menjadi yogurt. Berdasarkan analisis dari hasil penelitian maka dapat disimpulkan bahwa penggunaan sari wortel dengan konsentrasi sampai dengan 15% menurunkan nilai pH dan viskositas serta meningkatkan total bakteri asam laktat (BAL), total asam tertitrasi dan total karoten pada yogurt. Di dalam pembuatan yogurt dengan penambahan sari wortel disarankan untuk menambahkan juga bahan pengisi, pengental atau stabilizer untuk mendapatkan tingkat viskositas yang sama antara P0 - P3, karena dari hasil penelitian mendapati tingkat viskositas yogurt menurun yang disebabkan adanya kadar air yang terkandung pada sari wortel yang digunakan.
English Abstract
Carrot juice contains carotene as provitamin A and it is supposed to be able to stimulate the growth and increase the activity as lactic acid bacteria. The aim of this study is to find out the effect of adding carrot juice in small scale yoghurt producer to pH value, the amount of titrated acid, the amount of lactate acid bacteria, viscosity and the value carotene. The method used in this study is experimentally method by using simple complete random arrangement with four treatments and three repetitions. If there is effect of the repetitions, Duncan’s double distance test is taken. Lactobacillus bulgaricus and Streptococcus thermophillus bacteria for about 3% in the process of yoghurt making. The material used was fresh milk for about 0% (P0), 5% (P1), 10% (P2), 15% (P3) and then pateurisation was done before fermentation and incubation processes were done so that it became yoghurt. Based on the analysis of the research, it can be concluded that the use of carrot juice with the concentration until 15% can decrease pH proportion and viscosity and also it can increase lactate acid bacteria, titrated acid total, and the total of carotene in yoghurt. In yoghurt making with carrot juice, adding filler, vicosity substance, or stabilizer are suggested to obtain the same viscosity level between P0-P3, because the result of the research shows that the viscosity level of the yoghurt decreases because there is water contained in the carrot juice.
Item Type: | Thesis (Sarjana) |
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Identification Number: | SKR/FPT/2014/92/051403351 |
Subjects: | 600 Technology (Applied sciences) > 636 Animal husbandry |
Divisions: | Fakultas Peternakan > Peternakan |
Depositing User: | Hasbi |
Date Deposited: | 24 Jun 2014 14:28 |
Last Modified: | 20 Oct 2021 08:44 |
URI: | http://repository.ub.ac.id/id/eprint/137354 |
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