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Susanti, Irma
Balai Besar Industri Agro
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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Studi Pemanfaatan Ekstrak Ubi Jalar Sebagai Sumber Prebiotik Susanti, Irma; Sapto Hartanto, Eddy; Mulyani, Nova; Chandra, Fadli
Warta Industri Hasil Pertanian Vol 30, No 01 (2013)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6082.646 KB) | DOI: 10.32765/warta ihp.v30i01.2446

Abstract

Ubi jalar mengandung beberapa jenis oligosakarida yang mungkin berfungsi sebagai prebiotik, dan diharapkan setelah proses pengolahan, fungsi daari prebiotik dapat dipertahankan. Penelitian ini dilakukan dengan tujuan untuk melakukan uji in vitro dan in vivo ekstrak ubi jalar sebagai prebiotik. Pengujian efektifitas sari ubi jalar terhadap pertumbuhan Bakteri asam laktat dilakukan menggunakan media de Mann Rogosa sharpe broth (MRSB), dengan perlakuan K (-): MRSB sebagai kontrol negatif; K (+) : MRSB + BAL sebagai kontrol positif ; P1 : MRSB + BAL + sari ubi jalar Sukuh ; P2 : MRSB + BAL + ari ubi jalar Betta-1 dan P3: MRSB+ BAL + sar ubi jalar Antin. Pengujian in vivo dilakukan dengan menguji pertumbuhan bakteri asam laktat (BAL) dan uji kompetisi pertumbuhan BAL dan Escheria coli (E.Coli) terhadap ekstrak ubi jalar yang terbaik dari hasil uji in vitro sebelumnya. Uji in vivo dilakukan dengan menggunakan 4 kelompok tikus percobaan, yang masing-masing terdiri dari 4 ekor tikus putih jantan galur Sprague-dawley berumur dua bulan. Berdasarkan hasil uji vitro menunjukkan ekstrak ubi jalar semua varietas memiliki nilai absorbansi yang semakin tinggi pada 0 dan 24 jam dengan panjang gelombang 660 nm. Hal tersebut menunjukkan ekstrak ubi jalar pada dapat menstimulir pertumbuhan BAL dengan baik. Ekstrak ubi jalar dapat menekan pertumbuhan E. Coli dan Menstimulir BAL terutama ubi jalar varietas Betta-1 dan Sukuh. Hasil uji in vivo menunjukkan ekstak ubi jalar pada dosis pemberian ekstrak ubi jalar 0,54 g/hari dan 1,08 g/hari belum efektif meningkatkan bekteri asam laktat fekal dan menekan pertumbuhan bakteri asam laktat E. Colli tikus percobaan.
(Additional Effects of Chitosan and Turmric Solution to Soup Noodle Quality) Alamsyah, Rizal; Susanti, Irma; Nurhayati, Lilis
Warta Industri Hasil Pertanian Vol 25, No 01 (2008)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5178.891 KB) | DOI: 10.32765/warta ihp.v25i01.2556

Abstract

Soup noodle is one kind of the noodle that prevered by a lot of Indonesian people. Sunch noodle has short shelf life due to easiness for deterioration. The prolong the shelf life of this noodle, chemical ingredients are commonly used as formalin solution taht is harmful for humankind health. There are some alternatives of natural preservatities such chitosan and turmeric that can be treated to substitute the chemical preservatities. This study was devoted to investigate the effect of natural preservatives chitosan and turmeric sollution addition on soup noodle quality. The experiments use soup noodle which immerses into: 15ppm, 45ppm and 75 ppm of chitosan solution. 1% and 1.5% of turmeric solution. The analysis of quality of soup noodle were conducted in term of visual deterorietion, pH, moinsture content, totalized titration acid, total plate count (TPC), and opganoleptic tests. The experiment showed that soup noodle which were immersed into 15 ppm, 45 ppm, and 75 ppm of chitosan solution as well as into 1% and 1.5% of tumeric solution keep noodle good only for less then 24 hours. The soup noodle in the next 24 hours has a bad smell, acid condition, and TFC value is not eligible to the SNI standard that 1.0 x 10-6 coloni/g.
Co-Authors Alamsyah, Rizal Chandra, Fadli Mulyani, Nova Nurhayati, Lilis Sapto Hartanto, Eddy