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All Journal Jurnal Aplikasi Teknologi Pangan Journal of Applied Food Technology
Masykuri masykuri
Department Of Food Technology, Faculty Of Animal And Agricultural Sciences, Diponegoro University, Semarang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Immunology & microbiology Other

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Description of The Visual Image Magnification on Ginger Emulsion using Kappa and Iota Carrageenan Rani Oktaviani Saraswati; Ahmad Ni'matullah Al-Baarri; Heni Rizqiati; Anang Mohamad Legowo; Yoyok Budi Pramono; Yoga Pratama; Masykuri masykuri
Journal of Applied Food Technology Vol 6, No 1 (2019)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (239.713 KB) | DOI: 10.17728/jaft.3927

Abstract

This study aimed to analyze the magnification of visual image upon SEM analysis for determining the optimum view in order to obtain proper information of SEM image in ginger emulsion. The treatment in this research are without carrageenan, with iota carrageenan and with kappa carrageenan. Emulsion of ginger Graphical display testing according to using the Scanning Electron Microscope (SEM) method. The research showed that ginger emulsion with and without carrageenan were able to be seen clearly and the particle size were able to detected at a range 0.5-5 µm. The sample with iota carrageenan provided the information of separation among particles and it could not be seen clearly on the sample with kappa carrageenan. The low magnification of 250 times provided beneficial information to obtain the environment of particle.
Nilai pH, Keasaman, Citarasa, dan Kesukaan Susu Fermentasi dengan Penambahan Ekstrak Buah Nanas Umi Insyiroh; Masykuri Masykuri; Setya Budi Muhammad Abduh
Jurnal Aplikasi Teknologi Pangan Vol 3, No 3 (2014): Agustus 2014
Publisher : Indonesian Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (107.77 KB)

Abstract

Tujuan penelitian ini adalah untuk mempelajari nilai pH, keasaman, cita rasa, dan kesukaan susu fermentasi (yoghurt drink). Yoghurt drink dibuat dari susu skim melalui tahapan pasteurisasi suhu 80oC selama 15 menit, inokulasi bakteri campuan (L. bulgaricus,L. acidophilus, dan S. thermophillus) sebanyak 3% v/v dan inkubasi pada suhu 37°C yang dihentikan ketika keasaman susu mencapai 0,8-0,9%. Perlakuan penambahan ekstrak buah nanas (0%,1%,3% dan 5%) dilakukan pada jam ke-3 inkubasi. Percobaan dirancang secara acak lengkap dengan 5 ulangan. Nilai pH yoghurt drink diukur dengan pH meter, kesaman diukur dengan metode titrasi adapun citarasa asam, citarasa buah dan kesukaan diuji secara organoleptik dengan 25 panelis. Data pH dan keasaman dianalisa keragamannya dengan derajat kepercayaan 95%. Adapun data uji citarasa dan kesukaan dianalisa dengan metode Kruskal-Wallis. Hasil menunjukkan bahwa penambahan ekstrak buah nanas hingga 5% (v/v) dalam pembuatan yoghurt drink dapat menghasilkan yogurt drink dengan karakteristik pH dan keasaman yang sesuai standar yoghurt drink, citarasa agak asam dan citarasa buah nanas yang muncul di produk secara signifikan namun belum dapat meningkatkan kesukaan konsumen.
Co-Authors Al-Baarri, Ahmad Ni'matullah Anang M Legowo Heni Rizqiati Rani Oktaviani Saraswati Setya Budi Muhammad Abduh, Setya Budi Muhammad Umi Insyiroh Yoga Pratama Yoyok Budi Pramono