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All Journal Indonesian Journal of Public Health and Nutrition Journal Serambi Engineering (JSE)
Shabrina, Aulia
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Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Public Health

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Pengaruh Pemberian Tepung Porang dan Ubi Jalar Ungu terhadap Kadar Kolesterol dan Fungsi Hati Tikus Wistar yang Diberi Pakan Tinggi Lemak Shabrina, Aulia; Farida, Eko
Indonesian Journal of Public Health and Nutrition Vol 2 No 2 (2022): Regular Issue
Publisher : Center for Public Health Nutrition Studies, Universitas Negeri Semarang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijphn.v2i2.54233

Abstract

Latar Belakang: Umbi porang mengandung glukomanan sedangkan ubi jalar ungu mengandung antosianin yang dapat menurukan kadar kolesterol dan fungsi hati. Metode: penelitian ini bertujuan untuk mengetahui pengaruh pemberian pengaruh tepung porang dan tepung ubi jalar ungu terhadap penurunan kadar kolesterol, SGOT, dan SGPT pada tikus wistar.Metode: Jenis penelitian ini adalah eksperimental menggunakan rancangan pre and post test randomized control group design trial. Jumlah sampel berjumlah 30 ekor tikus yang diberi pakan tinggi lemak lalu diberikan intervensi campuran tepung porang dan tepung ubi jalar ungu pada kelompok K(-), K(+), P1(25%:75%), P2(50%;50%) dan P3(75%:25%) selama 14 hari. Data analisis dengan menggunakan uji One Way Annova yang dilanjutkan dengan uji post hoc.Hasil: campuran tepung porang dan tepung ubi jalar ungu terbukti menurunkan kadar kolesterol, Sgot dan SGPT secara bermakna pada kelompok perlakuan. Penurunan kadar kolesterol terbesar pada P2 (113,16±6,25c), penurunan SGOT terbesar pada P2 (37,55±1,43), dan penurunan SGPT terbesar pada P2 (17,97±1,63).Kesimpulan: campuran tepung porang dan tepung ubi jalar ungu terbukti menurunkan kadar kolesterol, SGOT, dan SGPT secara signifikan. Intervensi yang paling efektif terdapat pada kelompok P2 yaitu tepung porang dan tepung ubi jalar ungu sebanyak 4,86 gr/hari/200grBB dan 4,49 gr/hari/200grBB.
Techno-Economic Analysis of Biorefinery from Oil Palm Frond Petiole for Bioethanol and Electricity Production in Indonesia Shabrina, Aulia; Koji Tokimatsu
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia faces challenges in increasing the share of renewable energy, while large amounts of oil palm biomass remain underutilized. Oil palm frond (OPF) petiole is an abundant non-food residue with strong potential as a feedstock for bioethanol-based biorefineries. This study aims to evaluate the techno-economic feasibility of OPF petiole utilization by comparing three biorefinery configurations integrated with an existing palm oil mill processing 45 tons of fresh fruit bunches per hour. The assessment was conducted through process modelling, mass and energy balance analysis, and economic evaluation. Scenario 1 utilizes OPF juice to produce first-generation ethanol, and the remaining bagasse is burnt for electricity. In Scenario 2, both OPF juice and saccharified bagasse are converted to first- and second-generation ethanol through Separate Hydrolysis and Fermentation (SHF). Scenario 3 combines alkaline pretreatment and Simultaneous Saccharification and Fermentation (SSF). The residual fiber in all scenarios is used as solid fuel in the cogeneration system. The results show that Scenario 3 provides the highest ethanol yield at 9.65 million L/year. Although this scenario requires more external electricity than the other scenarios, it provides the most profitable pathway with an ROI of 7.91%, IRR of 14.93%, NPV of 24.97 million USD, and POT of 5.58 years. Thus, the SSF conversion of OPF petiole is identified as the most attractive scheme to optimize the palm oil biorefinery system in Indonesia.
Co-Authors Farida, Eko Koji Tokimatsu