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Aktivitas Antioksidan, Kadar Vitamin C dan Derajat Keasaman pada Susu Kambing Fermentasi dengan Menggunakan Lactobacillus rhamnosus dan Penambahan Jus Buah Bit (Beta Vulgaris L).
Author(s) -
Putri Putri,
Yurliasni Yurliasni,
Zuraida Hanum
Publication year - 2021
Publication title -
jurnal ilmiah mahasiswa pertanian
Language(s) - English
Resource type - Journals
eISSN - 2615-2878
pISSN - 2614-6053
DOI - 10.17969/jimfp.v6i4.17546
Subject(s) - food science , vitamin c , chemistry , lactobacillus rhamnosus , antioxidant , lactobacillus , fermentation , biochemistry
Abstrak. Penelitian ini betujuan untuk mengetahui aktivitas antioksidan, kadar vitamin C dan nilai pH susu kambing fermentasi dengan menggunakan Lactobacillus rhamnosus dan penambahan jus buah bit (Beta vulgaris L). Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) yang terdiri dari 5 perlakuan dan 4 ulangan sehingga diperoleh 20 unit percobaan. Perlakuan yang diberikan terdiri dari: P0: (kontrol) 0% jus buah bit, P1: 2% jus buah bit, P2 :4% jus buah bit, P3: 6% jus buah bit, P4: 8% jus buah bit. Parameter yang diukur dalam penelitian ini adalah uji pH, uji kadar vitamin C dan aktivitas antioksidan. Hasil penelitian ini menunjukkan bahwa susu kambing fermentasi menggunakan Lactobacillus rhamnosus dan penambahan jus buah bit berpengaruh sangat nyata (P0,01) terhadap nilai pH, dan pada aktivitas antioksidan menunjukkan dengan penambahan jus buah bit mampu meningkatkan golongan aktivitas antioksidan (IC50) susu kambing fermentasi dari golongan antioksidan sedang menjadi golongan antioksidan kuat. Sedangkan pada hasil uji kadar vitamin C menunjukkan bahwa penambahan jus buah bit tidak berpengaruh nyata (P0.05) terhadap kadar vitamin C susu kambing fermentasi.   Milk Using Lactobacillus rhamnosus and Addition of Beetroot Juice (Beta vulgaris L) Abstract. This study aims to determine the antioxidant activity, vitamin C content and pH value of fermentes goat milk using Lactobacillus rhamnosus and the addition of fruit juice beet (Beta vulgaris L). The design used completely Randomized (CRD) consisting of 5 treatments and 4 replications so that the obtained 20 units. The treatment consists of: P0: (control) 0% juice fruit bits, P1: 2% fruit juice beets, P2 :4% fruit juice beets, P3: S4% fruit juice beets, P4: 8% fruit juice bits. The parameters measured were pH, the levels of vitamin C and IC50 of antioxidant activity. The results showed that goat milk fermented using Lactobacillus rhamnosus and the addition of Beets fruit juice very significantly (P0.01) effect very significant effect (P0.01) on pH value, on the antioxidant activity showed that with the addition of fruit juice beet able to increase the class of antioxidant activity (IC50) of goat milk fermented from the class of antioxidants becoming a group of powerful antioxidants. While on the test results the levels of vitamin C showed that the addition of fruit juice the beets do not significantly effect (P0.05) on the levels of vitamin C.

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