Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Pertanian Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri
Nundiah Zuhrohfi Immaroh
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
PENDUGAAN UMUR SIMPAN DAN PERUBAHAN ASAM LEMAK ABON JAMUR TIRAM (Pleurotus ostreatus) SELAMA PENYIMPANAN Sudarminto Setyo Yuwono; Nundiah Zuhrohfi Immaroh; Harijono
Jurnal Teknologi Pertanian Vol. 24 No. 3 (2023)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtp.2023.024.03.7

Abstract

Jamur tiram dapat dimanfaatkan dalam pengembangan produk abon. Abon, salah satu produk pangan kering, umumnya berbahan baku daging melalui proses perebusan dan penggorengan. Selama penyimpanan, abon jamur tiram mengalami penurunan mutu, seperti munculnya aroma tengik akibat reaksi oksidasi. Penentuan umur simpan atau masa kadaluarsa sangat dibutuhkan agar diketahui batasan waktu produk dalam kondisi layak konsumsi. Tujuan dari penelitian ini adalah untuk mengetahui umur simpan abon jamur tiram serta perubahan asam lemak sebelum dan sesudah penyimpanan. Penentuan umur simpan abon jamur tiram menggunakan metode Accelerated Shelf Life Testing (ASLT) dengan persamaan Arrhenius, penyimpanan pada suhu 35, 45, dan 55°C. Hasil penelitian menunjukkan 60% panelis terlatih menolak abon jamur tiram pada hari ke-147. Mutu kritis warna L* 33,2; a* 18,8; b* 16, nilai peroksida 16,45Meq/kg,  asam lemak bebas 0,83 dan TBA 3,46 mg/kg. Penentuan umur simpan menggunakan nilai energi aktivasi terendah, yaitu parameter TBA sebesar 3982,931kal/mol dengan persamaan regresi linier dari plot Arrhenius y = −2.005,5x + 1,5173 dan nilai R2 0,908. Umur simpan abon jamur tiram apabila disimpan pada suhu 25, 27, dan 30°C berturut-turut adalah 515,34; 489,49; dan 458,14 hari. Terdapat enam senyawa baru yang muncul selama penyimpanan, yaitu Octanoic acid, methyl ester (Cas) Methyl octanoate, Pentadecanoic acid, 14-methyl-, methyl ester (Cas) Methyl 14-Methyl-Pentadecanoate, Nonanoic Acid (Cas) Nonoic Acid, 2-Isononenal (Cas) Branched Chain 2-Nonenal, Heptanoic Acid, 3,6,6-Trimethyl-, Methyl Ester (Cas) 3,6,6-Trimethylheptanoic Acid Methyl Ester, 9-Octadecenoic Acid (Z)- (Cas) Oleic Acid, 13-Docosenoic Acid, Methyl Ester (Cas) Methyl 13-Docosenoate. Jenis asam lemak tersebut dapat menimbulkan aroma tengik.
Pembuatan Lengan Senapan Angin 300x100x30 mm, Kaliber 4 mm, Komposit Sabut Kelapa, Kapasitas 0,67 Pasang/Jam Lazuardi Lazuardi; Syamsul Hadi; Nundiah Zuhrohfi Immaroh; Muhammad Akhlis Rizza; Sugeng Hadi Susilo; Maryono Maryono
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Vol. 4 No. 2 (2026): Manufaktur : Publikasi Sub Rumpun Ilmu
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manufaktur.v4i2.1436

Abstract

The weight of the 4 mm caliber air rifle arm (hand grip) with an initial weight of 450 g and the abundance of underutilized coconut fiber are the problems faced. The purpose of the manufacture is to obtain an air rifle arm measuring 300x100x30 mm, 4 mm caliber from coconut fiber composite material with an air rifle arm weight of around 250 g. The manufacturing method includes: air rifle arm design; selection of coconut fiber material with a diameter of 0.3-0.6 mm with drying at a temperature of 80°C for 2 hours; making a left and right pair of air rifle arm molds; molding coconut fiber composites with polyester resin and 0.5% hardener with a random fiber arrangement with a length of 10 mm and a volume fraction of 20%; natural hardening (curing) for 24 hours; making a standard specimen of coconut fiber composite with the composition for impact tests with three replications; analysis of impact test results data; quality and dimension inspection of the air rifle arm composite. The result of the manufacturing process is an air rifle arm weighing 238 g, with a specific impact strength of 0.087 J/mm², with a total production cost of IDR 157,000/pair, and a production duration of 90 minutes/pair, which results in the total weight of the rifle decreasing from 6.5 kg to 6.3 kg.
Co-Authors Akhlis Rizza, Muhammad Harijono Lazuardi Lazuardi Maryono Maryono Sudarminto Setyo Yuwono Sugeng Hadi Susilo Syamsul Ph.D M.A. Hadi