Stella Magdalena
Program Studi Teknologi Pangan, Fakultas Teknobiologi, Universitas Katolik Indonesia Atma Jaya, Jakarta

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

Utilization of Natural Products as Functional Feed Stella Magdalena; Natadiputri G H; Nailufar F; Purwadaria T
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 23, No 1 (2013): MARCH 2013
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (196.216 KB) | DOI: 10.14334/wartazoa.v23i1.957

Abstract

The use of antibiotics as feed additive improves performance in livestock. However, scientific data related to the use of antibiotics in feed merge spreading of bacterial resistance in animal and human bodies, therefore the usage of antibiotics in animal production is restricted. This condition raise the utilization of natural antibiotic as functional feed such as phytogenics (essential oil, flavonoid, saponin, and tannin), enzyme, probiotic, and prebiotic to improve the livestock’s performance, quality, and health. Functional feeds increase profitability in animal husbandry production and its use is feeds are expected to be functional foods that may have positive effects in human nutrition. Key words: Functional feed, phytogenic, enzyme, probiotic, prebiotic
Selai Apel Malang (Mallus sylvestris Mill) Rendah Kalori dengan Substitusi Gula Menggunakan Stevia Catharina Vincentia; Diana Lestari; Stella Magdalena
Jurnal Aplikasi Teknologi Pangan Vol 10, No 3 (2021): Agustus 2021
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jatp.9254

Abstract

Selai buah pada umumnya memiliki gula tinggi yang dapat meningkatkan resiko penyakit diabetes mellitus. Oleh karena itu dilakukan formulasi selai buah dengan pemanis alternatif stevia. Penelitian ini bertujuan untuk mengetahui masa simpan selai apel rendah gula dengan penambahan stevia, menguji sifat fisikokimia, mengukur kadar gula reduksi, menganalisis penerimaan sensori, serta membuat informasi nilai gizi selai tersebut. Selai dibuat menggunakan buah apel Malang dengan pemanis sebanyak 18% dan substitusi stevia sebanyak 4 dan 8 g. Pengujian masa simpan dilakukan dengan mengamati perubahan sensori dan pH selama penyimpanan. Uji sifat fisikokimia dilakukan dengan pengukuran aw, total padatan terlarut, dan analisis warna, uji gula reduksi dilakukan dengan metode 3,5-dinitrosalicylic acid (DNS), uji penerimaan dan daya oles dilakukan menggunakan dengan uji sensori hedonik dan ranking, serta informasi nilai gizi berdasarkan analisis proksimat. Keseluruhan selai apel yang dihasilkan memiliki pH 3. Selai dengan substitusi stevia menghasilkan selai dengan warna yang lebih cerah dengan masa simpan selama 2 minggu pada suhu ruang. Nilai aw selai dengan stevia diketahui lebih rendah, serta total padatan terlarut yang lebih tinggi dibandingkan dengan selai kontrol. Kadar gula reduksi selai dengan stevia juga diketahui lebih rendah dari selai kontrol. Aftertaste dan daya oles dari selai kontrol lebih disukai dengan perbedaan yang tidak signifikan dibandingkan dengan selai substitusi 4 g stevia. Setiap 20 g selai substitusi 4 g stevia mengandung 8 g karbohidrat, protein dan lemak tidak terdeteksi. Kesimpulannya, substitusi stevia pada selai buah apel dapat dilakukan untuk menghasilkan selai dengan sifat fisikokimia yang lebih baik.Low-Calorie Malang Apple (Malus sylvestris Mill) Jam using Stevia as SweetenerAbstractFruit jam in general has high sugar content that can increase diabetes mellitus risk. Therefore, the formulation of fruit jam with an alternative sweetener such as stevia was carried out. This research aims to determine the shelf-life of low sugar apples jam, physicochemical properties, reducing sugar content, as well as sensory acceptability, and create the nutrition fact the jam. The jams were made from Malang apples using 18% sweetener with 4 and 8 g stevia substitution. The shelf life testing was carried out by observing the changes of sensory properties and pH during storage. The physicochemical properties test was carried out by measuring aw, total dissolved solids, and color analysis. The reducing sugar test was carried out by 3.5-dinitrosalicylic acid (DNS) method, the acceptance test and spreadability were examined using the hedonic and ranking sensory testing, the jam’s nutrition fact was made based on the proximate analysis. The results showed that the apple jams had a pH of 3. Jam with stevia substitution had lighter color with shelf life of 2 weeks at room temperature. Aw value of the jams with stevia was known to be lower and higher total dissolved solids compared to the control jam. Reducing sugar content of jam with stevia also known to be lower than control jam. The aftertaste and spreadability of control jam were preferable with insignificant difference compare to the 4 g stevia jam. Every 20 g of 4 g stevia jam contains 8 g carbohydrates and undetectable protein and fat. As conclusion, the substitution of stevia in jam might produced better physicochemical quality of apple jam.
Profil Bakteri Asam Laktat dan Evaluasi Sensori dari Tempe Bungkus Daun Jati yang Disuplementasi dengan Daun Kelor Stella Magdalena; Yogiara Yogiara; Adi Yulandi
Jurnal Aplikasi Teknologi Pangan Vol 10, No 1 (2021): February 2021
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jatp.7330

Abstract

Tempe bungkus daun jati merupakan produk pangan fermentasi tradisional Indonesia yang kaya protein, serat, dan vitamin yang sangat popular di Kabupaten Blora, Jawa Tengah. Penelitian ini bertujuan mengetahui pengaruh penambahan daun kelor pada tahapan perendaman dan peragian dalam proses produksi tempe terhadap profil bakteri asam laktat (BAL) dan tingkat kesukaan. Daun kelor segar dan serbuk disuplementasikan dengan variasi konsentrasi pada proses produksi tempe kacang kedelai. Hasil penelitian menunjukkan bahwa daun kelor tidak menghambat aktivitas pertumbuhan dari kapang Rhizopus. Penambahan serbuk daun kelor sebanyak 1x dan 2x (b/b) dari total jumlah ragi pada proses peragian menghasilkan tekstur tempe yang kompak. Semakin tinggi konsentrasi air perasan daun kelor dalam proses perendaman, jumlah total bakteri asam laktat menurun hingga 103 CFU/g. Profil BAL dari tempe bungkus daun jati dengan ataupun tanpa suplementasi daun jati mengandung BAL dari genus Weissella. Tempe bungkus daun jati dengan suplementasi 1x (b/b) serbuk daun kelor sangat berpotensi untuk disosialisasikan sebagai pangan fungsional kepada masyarakat.Lactic Acid Bacteria Profile and Sensory Evaluation of Teak Leaf-Wrapped Tempeh Supplemented with Moringa LeavesAbstractTempeh wrapped in teak leaves is a traditional Indonesian fermented food product that is rich in protein, fiber, and vitamins which is very popular in Kabupaten Blora, Central Java. This study aimed to investigate the effect of Moringa leaves addition in the soaking and fermentation stages of tempeh production towards the profile of lactic acid bacteria (LAB) and the level of respondent acceptance. Fresh and powdered leaf was supplemented in various doses to soybean tempeh production. As results, Moringa leaves did not inhibit the growth of Rhizopus. The addition of Moringa leaf powder as much as 1x and 2x (w/w) of the total amount of yeast in the fermentation process produced a compact tempeh texture. The higher the concentration of Moringa leaf juice in the soaking process reduced total number of lactic acid bacteria to 103 CFU/g. LAB profile of teak leaf-wrapped tempeh with or without teak leaf powder supplementation contained LAB that belongs to the genus Weissella. Teak leaf-wrapped tempeh supplemented by 1x (w/w) Moringa leaf powder has a potential value to be socialized as functional food to the community.