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PENGARUH PENYIMPANAN PADA SUHU RENDAH TERHADAP KANDUNGAN PROTEIN DAN SIFAT ORGANOLEPTIK TAHU Muchtar, Febriana; Panga, La; hastian, hastian
Jurnal Sains dan Teknologi Pangan Vol 5, No 5 (2020): Jurnal Sains dan Teknologi Pangan
Publisher : JURUSAN ILMU DAN TEKNOLOGI PANGAN, UNIVERSITAS HALU OLEO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.981 KB) | DOI: 10.33772/jstp.v5i5.15088

Abstract

ABSTRACTTofu is one of the vegetable protein sources. Low-temperature is often the best place for food storage. In households, low-temperature storage can be done in the refrigerator. This study was aimed to find out the effect of low temperature storage on protein content and organoleptic properties of tofu and to determine how long tofu should be stored at low temperature to possibly be used as a reference, especially for tofu consumers. This research was conducted using an experimental method with non-factorial Completely Randomized Design (CRD). In this study, tofu was soaked in water and stored in a container then put in a refrigerator (5 – 10 °C) with varied storage period consisting of 4 treatment levels that were without storage (T0), 2-day storage (T1), 4-day storage (T2), and 6-day storage (T3). Protein content was analyzed by using indophenol-blue and organoleptic assessment was done with the hedonic test. Data analysis was conducted using the Analysis of Variance (ANOVA) method. The result of the research shows that low-temprature storage had a significant effect on protein content and the organoleptic properties of tofu. Tofu stored at low temperature can last for up to 2 days with a protein content of 7.55% and organoleptic properties of color, aroma, and appearance reached 4.3 (like), 4.3 (like), and 4.2 (like).Keywords:Low temperature storage, tofu, protein, and organoleptic.ABSTRAKTahu merupakan salah satu sumber protein nabati. Penyimpanan bahan pangan sering dilakukan pada suhu rendah. Pada rumah tangga penyimpanan suhu rendah dapat dilakukan di kulkas (refrigerator). Penelitian ini bertujuan untuk mengetahui pengaruh suhu rendah terhadap perubahan kandungan protein dan sifat organoleptik tahu, serta untuk mengetahui berapa lama penyimpanan tahu pada suhu rendah sehingga dapat digunakan sebagaiacuan khususnya bagi konsumen tahu. Penelitian ini dilakukan dengan metode eksperimen dengan Rancangan Acak Lengkap (RAL) non faktorial. Perlakuan yang diterapkan adalah penyimpanan tahu yang direndam dalam air dan disimpan dalam wadah kemudian disimpan pada refrigerator atau kulkas (5°C–10°C) dengan variasi lama penyimpanan terdiri dari 4 tingkat perlakuan yaitu tanpa penyimpanan, penyimpanan 2 hari, penyimpanan 4 hari dan penyimpanan 6 hari. Kandungan protein dianalisis dengan metode indofenol biru dan organoleptik dengan pengujian hedonik. Analisis data dilakukan dengan metode Analisis of Varians (ANOVA). Hasil penelitian menunjukkan bahwa penyimpanan pada suhu rendah (5°C–10° C) berpengaruh sangat nyata terhadap kandungan protein dan sifat organoleptik tahu. Penyimpanan tahu pada suhu rendah dapat dilakukan hingga 2 hari penyimpanan dengan kadar protein 7,55% dan sifat organoleptik warna 4,3 (suka), aroma 4,3 (suka) dan penampakan 4,2 (suka).Kata kunci: Penyimpanan Suhu Rendah, Tahu, Protein dan Organoleptik.
Analisis Kadar Air, Kadar Protein dan Karakteristik Organoleptik Kerupuk Stik dengan Penambahan Konsentrasi Ikan Layang yang Berbeda Febriana Muchtar; Hastian Hastian; Ruksanan Ruksanan
AGRITEKH (Jurnal Agribisnis dan Teknologi Pangan) Vol. 3 No. 2 (2023)
Publisher : Ma'soem University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32627/agritekh.v3i2.630

Abstract

This study was performed to examine the effect of different concentrations of mackerel scads fish on water content, protein content and organoleptic properties of mackerel scads stick crackers. This research  was conducted using an experimental method with a non-factorial Completely Randomized Design (CRD).The treatment applied was in different concentrations of mackerel scads fish consisted of 3 levels of treatment, namely, 20% (L1), 30% (L2) and 40% (L3). Each treatment was replicated three times. Data of this study were analyzed by using one- way Anova and was followed by a Duncan test with ? = 5% if there was a significant difference between treatments. Water content was tested using oven method, while the protein content was measured using Kjedhal method and organoleptic properties were tested in hedonic test (favorability level). The results showed that fish concentrations affected the water content, protein content and organoleptic properties of mackerel scads fish stick crackers, including the color, aroma and taste. However, the texture of fish stick crackers was not affected. The treatment with 30% (L2) of mackerel scads fish meat showed the most of optimal outcomes with, 4.24% water content, 25.03% protein content, and organoleptic properties of color 4.37 (like), aroma 4.49 (like), texture 4.60 (strongly like) and 4.49 (like).
The Effect of the Biomass Weight Ratio of Patchouli Leaves and Sawdust on the Chemical Properties of Patchouli Briquettes Amal Muliono; La Oge; Erni Danggi; Rustan Ari; Hastian Hastian; Wa Ode Nur Siti Fatimah
Journal of Agriculture, Agribusiness, Welfare, Technology, Humanity, Environment, Social, and Economy Vol. 2 No. 1 (2026): April - June 2026 Edition
Publisher : Fakultas Teknologi Pertanian Unsultra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64690/agrones.v2i1.735

Abstract

The increasing depletion of fossil fuel reserves and rising global energy demand have accelerated the development of renewable energy sources, particularly biomass-based fuels. This study aimed to analyze the effect of biomass weight ratios of patchouli leaf waste and sawdust on the chemical properties and combustion rate of charcoal briquettes, and to determine the optimum composition for producing high-quality briquettes. The research was conducted in Wakumoro Village, Parigi District, Muna Regency, Southeast Sulawesi, from October to November 2025. A Completely Randomized Design (CRD) was applied with five treatment levels and three replications. The treatments consisted of different ratios of patchouli leaves and sawdust: P1 (100% patchouli leaves), P2 (75% + 25%), P3 (50% + 50%), P4 (25% + 75%), and P5 (100% sawdust). The observed parameters included moisture content, ash content, and combustion rate. Data were analyzed using Analysis of Variance (ANOVA) followed by Duncan’s Multiple Range Test (DMRT) at a 95% confidence level. The results showed that biomass composition significantly affected moisture content, ash content, and combustion rate of briquettes. The best overall performance was obtained in P2, with moisture content of 1.57% and ash content of 7.48%, both meeting the Indonesian National Standard (SNI 01-6235-2000). The highest combustion rate was observed in P3 at 6.93 g/min. These findings indicate that the combination of patchouli leaf waste and sawdust has strong potential as an environmentally friendly alternative fuel and provides an effective solution for agricultural and wood waste utilization.