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PENGGUNAAN EKSTRAK KHAMIR SEBAGAI NUTRISI TAMBAHAN PADA FERMENTASI MOROMI KECAP KEDELAI Pangestika, Leonie Margaretha Widya; Lioe, Hanifah Nuryani; Adawiyah, Dede Robiatul; Suliantari, Suliantari; Melzer, Guido; Weinreich, Bernd
Jurnal Teknologi Pertanian Vol 22, No 1 (2021)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtp.2021.022.01.1

Abstract

ABSTRAKKarakteristik kecap kedelai sangat ditentukan oleh aktivitas mikroorganisme yang terlibat selama fermentasi khususnya pada fermentasi tahap kedua dengan larutan garam. Kedelai merupakan substrat yang tinggi protein, dimana hasil fermentasinya seperti kecap kedelai memiliki rasa yang gurih karena kandungan asam amino bebas dan peptida. Bahan yang dapat meningkatkan pertumbuhan mikroorganisme selama fermentasi seperti ekstrak khamir belum pernah diteliti penggunaannya dalam pembuatan kecap kedelai. Penelitian ini bertujuan mengevaluasi pengaruh penambahan ekstrak khamir pada tahap fermentasi garam terhadap karakteristik kimia moromi kecap kedelai. Moromi adalah hasil fermentasi tahap kedua dan disebut kecap kedelai setengah jadi yang belum dimasak dengan gula dan rempah-rempah untuk menghasilkan kecap asin atau kecap manis. Karakteristik moromi yang diinginkan adalah kadar asam glutamat bebas dan padatan terlarut yang tinggi. Pada penelitian ini koji kering difermentasi dalam larutan garam (1:4= koji:larutan garam) 20% b/v secara spontan. Ekstrak khamir ditambahkan ke dalam larutan garam dengan konsentrasi 0 (M0) sebagai kontrol, 0,05 (M1), 0,15 (M2), dan 0,50 (M3) % b/v. Karakteristik kimia dari moromi dievaluasi pada hari ke- 0, 7, dan kemudian setiap dua minggu sekali hingga hari fermentasi ke-63. Hasil analisis data dengan One-Way ANOVA menunjukkan bahwa karakteristik kimia moromi yang ditambah ekstrak khamir berbeda nyata dengan karakteristik moromi tanpa penambahan ekstrak khamir. Moromi yang ditambah ekstrak khamir 0,50% b/v (M3) memiliki total gula, total asam tertitrasi, dan kadar asam glutamat yang signifikan lebih tinggi dibanding moromi lain (M1 dan M2). Ekstrak khamir dapat dimanfaatkan sebagai nutrisi tambahan bagi mikroorganisme yang berperan dalam proses pembuatan kecap kedelai.Kata kunci: Aktivitas Mikroorganisme; Fermentasi Garam; Ketersediaan Nutrisi; Kualitas Kecap Kedelai ABSTRACT         The characteristics of soy sauce are largely determined by the activity of microorganisms involved during fermentation, especially in the second stage of fermentation with brine. Soybeans contained high protein concentration, hence its fermentation result such as soy sauce has a savory taste. Supporting materials such as yeast extract that can boost microbial growth during soy sauce fermentation haven’t been studied in soy sauce production. This study aims to evaluate the effect of yeast extract addition in brine fermentation towards chemical characteristics of soy sauce moromi. Moromi is product from second stage of fermentation, called semi-finished soy sauce, that hasn’t been cooked with sugar and spices to produce salty or sweet soy sauce. The desired characteristics of moromi are high levels of free glutamic acid and dissolved solids. In this study, dried koji was fermented in brine (1: 4 = koji: brine) 20% w/v spontaneously. Yeast extract was added to the brine with concentration 0 (M0) as a control, 0.05 (M1), 0,15 (M2), and 0.50 (M3) % w/v. The chemical characteristics of moromi were evaluated on day 0, 7, and then every two weeks until the 63rd day of fermentation. Results of data analysis by One-Way ANOVA showed that the chemical characteristics of moromi with yeast extract addition were significant different with moromi without yeast extract addition. Moromi which added with 0.50% w/v of yeast extract exhibited a significant higher of total sugar, total titratable acid, and glutamic acid compared to other moromi (M1 and M2). Yeast extract can be used as an additional nutrition for microorganisms in soy sauce production.Keywords : Brine Fermentation; Microorganisms Activity; Nutrition Availability; Soy Sauce Quality
Evaluasi Ciri Mekanis Dan Fisis Bioplastik Dari Campuran Poli (Asam Laktat) Dengan Polisakarida Raffi Paramawati; Christofora Hanny Wijaya; Suminar Setiati Achmadi; Suliantari Suliantari
Jurnal Ilmu Pertanian Indonesia Vol. 12 No. 2 (2007): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.964 KB)

Abstract

The study was aimed to evaluate physical and mechanical characteristics of blend of polylactic acid (PLA)and four types of polysaccharides, namely carrageenan, agar, tapioca, and garut starch. Agar and carrageenanshowed their ability to blend well with the PLA at a temperature of approximately 60ac, which was easilyobserved. Film sheets that were casted manually with better properties needed additives of triethanolamine oroleic acid, in terms of tensile strength, elastic modulus, and percent elongation at break which were categorizedas medium compared to other biodegradable plastics. Microstructure of the selected film revealed irregularformation of surface or amorphous, indicating that these films cannot be stored for a long period of time.
Intervensi tahu ungu mampu memperbaiki profil lipid darah subjek penderita diabetes melitus tipe-2 Amrizal, Sri Novalina; Zakaria, Fransiska Rungkat; Chasanah, Ekowati; Suliantari, Suliantari
Jurnal Gizi dan Pangan Vol. 12 No. 3 (2017)
Publisher : The Food and Nutrition Society of Indonesia in collaboration with the Department of Community Nutrition, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.862 KB) | DOI: 10.25182/jgp.2017.12.3.225-230

Abstract

This study aimed to determine the effect of purple tofu intervention made from black soybean seeds in improving blood lipid profile of diabetics. Intervention of purple tofu was performed for 28 days and 20 subjects selected purposively and divided into two groups, control and treated. Tofu was served in soup form as much as 85 g. Significant improvement was identified in blood lipid profile of subjects after intervention (p<0.05). Decreased lipid profile occurred in triglycerides, low density lipoprotein (LDL), total cholesterol, and high density lipoproteins (HDL) (175.60±72.61 mg/dl to 123.70±29.50 mg/dl; 133.76±47.00 mg/dl to 98.96±13.81 mg/dl; 207.00±52.26 mg/dl to 154.40±50.89 mg/dl; 48.90±3.24 mg/dl to 30.80±7.09 mg/dl, respectively). Overall, black soy improves blood lipid profile of type 2 diabetes mellitus subjects, involving decreased triglycerides, LDL, and total cholesterol levels, but has not been able to increase HDL levels.