Claim Missing Document
Check
Articles

Found 26 Documents
Search

Pengelolaan Kawasan Cagar Biosfer Semeru Guna Peningkatan Sektor Pariwisata Di Kecamatan Poncokusumo Nurika, Irnia; Meidiana, Christia; Surjono, Surjono; Irawanto, Dodi Wirawan; Martati, Erryana; Yudono, Adipandang
Journal of Innovation and Applied Technology Vol 9, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2023.9.2.09

Abstract

Kawasan Bromo Tengger Semeru Arjuno merupakan salah satu cagar biosfer di Indonesia yang berada di Jawa Timur. Cagar biosfer Bromo Tengger Semeru Arjuno dikenal sebagai “Exotic Nature of Ancient Java” yang menggambarkan harmonisasi dalam pengelolaan kawasan dengan unsur manusia, budaya dan religi didalamnya. Kecamatan Poncokusumo berada disekitar kawasan tersebut sebagai zona penunjang dan transisi, dimana wilayahnya berpotensi dalam agropolitan dan pariwisata. Salah satu desa di Kecamatan Poncokusumo, Desa Gubuklakah, berada dalam kawasan destinasi wisata seperti Coban Pelangi, Coban Bidadari, dan Gunung Sari Sunset. Pengembangan dan penanganan Desa Gubuklakah dinilai perlu dilakukan untuk meningkatkan kesejahteraan masyarakat dengan melihat adanya potensi pengembangan agrowisata. Program Doktor Mengabdi (DM) ini dilaksanakan dengan kegiatan Kuliah Kerja Nyata (KKN) untuk memberikan solusi pembangunan sektor potensial di wilayah zona penunjang Kawasan Cagar Biosfer Semeru.
Optimization of Vanillin Extraction from Biodegradation of Oil Palm Empty Fruit Bunches by Serpula lacrymans Azizah, Nurul; Suhartini, Sri; Nurika, Irnia
Industria: Jurnal Teknologi dan Manajemen Agroindustri Vol 10, No 1 (2021)
Publisher : Department of Agro-industrial Technology, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.industria.2021.010.01.4

Abstract

Abstract This research aims to determine the combination of the ethyl acetate solvent volume and the extraction time that resulted in the optimum response of vanillin content and vanillin yield from the degradation of lignocellulose components from oil palm empty fruit bunches (OPEFB). First, OPEFB degraded using Serpula lacrymans to break down lignocellulosic components. The research design used a centralized composite design with two factors, the volume of ethyl acetate solvent (ml) and the extraction time (minutes). The responses of the experiment are vanillin content and vanillin yields. The optimization analysis results showed that the volume of ethyl acetate solvent and extraction time have a quadratic effect on the vanillin content and vanillin yields. The optimal solution was obtained by treatment with ethyl acetate volume 101.1 ml and extraction time 123.5 minutes. The optimal solution prediction results obtained vanillin content 0.014% and vanillin yield 7.302 μg/g with desirability of 92.8%. Validation based on the optimal solution’s prediction brought response vanillin content 0.013% and vanillin yield 6.950 μg/g. The vanillin content and yield validation results differed respectively by 4.081% and 4.826% lower when compared to predictions on the optimal solution.Keywords: ethyl acetate, vanillin content, vanillin yield AbstrakPenelitian ini bertujuan untuk mengetahui kombinasi dari volume pelarut etil asetat dan lama waktu ektraksi yang menghasilkan respon kadar vanillin dan yield vanillin optimum dari hasil degradasi komponen lignoselulosa tandan kosong kelapa sawit. Tandan kosong kelapa sawit terlebih dahulu didegradasi menggunakan jamur pelapuk Serpula lacrymans untuk memecah komponen lignoselulosa. Rancangan penelitian menggunakan rancangan komposit terpusat dengan dua faktor, yaitu volume pelarut etil asetat (ml) dan lama waktu ekstraksi (menit). Respon dari percobaan tersebut adalah kadar vanillin dan yield vanillin. Hasil penelitian untuk analisis optimasi menunjukkan bahwa faktor volume pelarut etil asetat dan lama waktu ekstraksi berpengaruh secara kuadratik terhadap respon kadar vanillin dan yield vanillin. Hasil solusi optimal diperoleh pada perlakuan dengan volume pelarut etil asetat sebesar 101,1 ml dan lama ekstraksi selama 123,5 menit. Hasil prediksi solusi optimal diperoleh kadar vanillin 0,014% dan yield vanillin 7,302 μg/g dengan ketepatan 92,8%. Validasi yang dilakukan berdasarkan pada prediksi solusi optimal diperoleh respon kadar vanillin 0,013% dan yield vanillin 6,950 μg/g. Hasil validasi kadar dan yield vanillin tersebut memiliki perbedaan masing-masing 4,081% dan 4,826% lebih rendah jika dibandingkan dengan prediksi pada solusi optimal.Kata kunci: etil asetat, kadar vanillin, yield vanillin 
Screening of LAB-Compatible Fungi and the Effect of Corncob Substrate Concentration on D(-) Lactic Acid Production using the Multiple Parallel Fermentation (MPF) Approach: Skrining Kapang yang Kompatibel dengan BAL serta Pengaruh Konsentrasi Substrat Tongkol Jagung terhadap Produksi Asam Laktat D(-) melalui Pendekatan Multiple Parallel Fermentation (MPF) Mufidah, Elya; Mifzal, Adib Maula; Veliska, Audrya Nasywa; Rahayu, Farida; Irawati, Maghfira Selia; Wibisono, Yusuf; Sugiarto, Yusron; Nurika, Irnia
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 13 No. 2 (2025): August 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2025.013.02.02

Abstract

Biological production of D(-) lactic acid is being advanced as an eco-friendly alternative to petrochemical routes. This study optimizes D(-) lactic-acid production from corn cobs through Multiple-Parallel Fermentation (MPF), which combines a polysaccharide-degrading filamentous fungus with lactic-acid bacteria (LAB) in a single reactor. The novelty of the work lies in deploying a specific consortium of Aspergillus sp. and Leuconostoc mesenteroides for parallel fermentation of corn-cob biomass—a combination not previously reported. Three fungal isolates and three LAB strains were screened to identify the most compatible pairing. Fermentations were run at initial pH 7.0 and 39 °C with substrate concentrations of 3, 5 and 7% w/v. The 7% loading yielded the highest D(-) lactic-acid titer (14.01 % w/v), although differences among treatments were not statistically significant (p > 0.05). One-way ANOVA satisfied normality and homogeneity-of-variance assumptions, and linear regression indicated a moderate relationship between substrate concentration and lactic-acid yield (R² = 0.429). A D/L ratio exceeding 95:5 across all treatments confirmed selective D(-) isomer formation by L. mesenteroides. These results demonstrate the promise of MPF using local lignocellulosic waste as an efficient, sustainable route to D(-) lactic acid.
Unlocking circularity: A PESTLE-SWOT analysis for sustainable black soldier fly (BSF) larvae waste valorization in an emerging economy context (Case study: Pasuruan, Indonesia) Wahid, Abdul; Suhartini, Sri; Asmaul Mustaniroh, Siti; Nurika, Irnia
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 8, No 3 (2025)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2025.008.03.3

Abstract

Escalating organic waste poses a global challenge, particularly in emerging economies like Indonesia. The Circular Economy (CE) framework, utilizing Black Soldier Fly (BSF) larvae for waste valorization, offers a promising sustainable solution, yet successful implementation requires understanding contextual factors. This study analyzed external (PESTLE) and internal (SWOT) factors influencing CE adoption in BSF-based organic waste management in Pasuruan Regency, Indonesia. A mixed-methods approach with surveys of 30 BSF entrepreneurs and expert consultations was employed. PESTLE analysis identified macro-environmental influences, informing the SWOT analysis. Weighted scores for SWOT factors assessed BSF enterprises' strategic positioning. Key opportunities include rising market demand for BSF products and growing partnerships. Strengths are existing cooperation networks and BSF's waste reduction efficiency. However, significant weaknesses like limited CE understanding, reliance on basic technology, and lack of supportive regulations, coupled with threats like high infrastructure costs and limited advanced processing knowledge, create challenges. Overall Internal Factors Analysis Summary/IFAS (-0.15) and External Factors Analysis Summary/EFAS (-0.53) scores indicate a defensive strategic position. Unlocking circularity for BSF waste valorization in Pasuruan necessitates addressing regulatory gaps, enhancing technical capacity and CE knowledge, and fostering multi-stakeholder collaborations. Strategic interventions in policy, finance, and technology are crucial for transitioning towards a sustainable BSF-CE model.
Identification of Availability and Lignocellulosic Properties in Coconut Dregs Waste Murtius, Wenny Surya; Argo, Bambang Dwi; Nurika, Irnia; Sukardi, Sukardi
Journal of Applied Agricultural Science and Technology Vol. 8 No. 1 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i1.248

Abstract

Agricultural waste, including coconut pulp, contains lignocellulose and is a very important, renewable and sustainable industrial raw material. Many of the food, textile, pharmaceutical, paint and resin, agrochemical, oil processing, and other sectors utilize lignocellulosic derivatives. The objectives of this study were to determine the availability of coconut pulp in Padang City-West Sumatra, analyse the lignocellulosic components contained and cell surface morphology, and observe the chemical elements in coconut pulp waste. An exploratory approach was used in this study to achieve these objectives. The results showed that there were 98 coconut milk entrepreneurs spread across traditional markets in Padang City, West Sumatra. Every day the coconut milk squeeze business examined produces ± 1.18 tonnes of coconut pulp. Coconut waste also contains 47.18% cellulose, 10.58% lignin, and 12.10% hemicellulose. Based on the XRD results, the crystal size of coconut pulp obtained from XRD observation is 11.8 nm.
BNC production of siwalan neer and sugarcane molasses as novel media sources Hapsari, Dara Puspita; Perdani, Claudia Gadizza; Fahmi, Fahmi; Nurika, Irnia; Gunawan, Setiyo
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 7, No 2 (2024)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2024.007.02.3

Abstract

Bacterial nanocellulose (BNC) is a unique biopolymer with remarkable purity and material properties that distinguish it from plant-derived cellulose by its absence of lignin and hemicellulose. Recent research has focused on using organic waste materials as alternative substrates to reduce the cost of BNC production. This study examines the efficacy of Siwalan neer and sugarcane molasses as novel media for cultivating Komagataeibacter xylinus by comparing their performance with that of Hestrin and Schramm (HS) medium. The BNC harvested from these alternative media was rigorously characterized using scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and Thermogravimetric Analysis (TGA) to evaluate its structural and thermal properties. Notably, the use of Siwalan neer and sugarcane molasses as growth substrates enabled K. xylinus to produce BNC at a yield of 3.83 g/L, significantly exceeding the yield from the HS medium, which was 1.46 g/L. These findings highlight the potential of leveraging alternative substrates to enhance BNC production yield, cost-effectiveness, and environmental sustainability.