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All Journal Jurnal Teknologi Dan Industri Pangan Journal of Degraded and Mining Lands Management Program Kreativitas Mahasiswa - Penelitian agriTECH Journal of Science and Applicative Technology Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Advance Sustainable Science, Engineering and Technology (ASSET)
Djagal Wiseso Marseno
Jurusan Teknologi Pangan Dan Hasil Pertanian, Fakultas Teknologi Pertanian, Universitas Gadjah Mada, Jl. Flora No.1, Bulaksumur, Yogyakarta 55281
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Integrating natural resource resilience and agroecology: policy on protecting agricultural land from degradation in Magelang District, Central Java Province Widayanti, Windy Kartika Putri; Marseno, Djagal Wiseso; Purwadi, Didik
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5405

Abstract

Although the Government of Magelang District has local policies for land protection from degradation, landslide disaster has hampered the construction of the Rehabilitation of Farm Road (RJUT) of organic rice of UPLAND program in 2022 in Bandongan Sub-District and caused loss of farmer’s agricultural land in Sawangan. This research aimed to describe the impacts of land degradation, the relevance of local policy substance to the protection of upland farmland from degradation, identify the vulnerability of natural resources and build the integration concept consisting of resilience of natural resources and agroecology. The research was conducted in Grabag, Sawangan, and Bandongan Sub-Districts. The research method was descriptive qualitative by interviewing 18 farmers and 13 key informants by purposeful sampling and field observations. Qualitative data analysis using QDA Miner software. The results showed that local policies in Regional Regulation Number 18 of 2017 concerning the Development of Competitive and Environmentally Sound Agricultural Products and the Decree of the Head of the Agriculture and Food Service Office of Magelang District Number 188.4/694/SK/20/2021 concerning Determination of Prospective Farmers and Prospective Locations (CPCL) of UPLAND Activities in Magelang District are less relevant to protect land from holistic degradation (quality and ecological due to landslides) causing vulnerability to the resilience of natural resources. Therefore, it needs innovations in the form of public policies that are comprehensive, holistic, and integral through the integration model of natural resource resilience and sustainability of irrigation systems in upland agricultural land protection systems complementing each other.
Optimization of Microwave Treatment to Improve Adsorption Properties of Porous Rice Starch Maharani, Elok Pawening; Triwitono, Priyanto; Pranoto, Yudi; Marseno, Djagal Wiseso
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1553-1562

Abstract

Porous starch (PS) is used in various foods as a flavoring, absorbent, and to protect vitamins and oils. Rice starch is processed to minimize the preparation time of PS, while simultaneously maintaining its adsorption efficiency. This study aims to optimize microwave treatment to improve the water, oil, and methylene blue adsorption capacity and PS yield of rice. This study used Response Surface Methodology (RSM) with Central Composite Design (CCD) to optimize the water, oil, and methylene blue adsorption capacity and PS yield of rice. Two factors were considered: time (X₁: 3-15 s) and power (X₂: 100-200 W/g). The statistical significance of the responses was evaluated using analysis of variance (ANOVA) at the 95% confidence level, with differences considered significant at p<0.05. Linear and quadratic models were the modes suggested by the software. Model analysis showed that microwave time and power significantly affected the adsorption properties. Based on the research results, the optimum conditions for making porous rice starch were obtained by using a microwave time of 15 s and a power of 171 W/g, resulting in a water absorption capacity of 96.34±2.93%, an oil absorption capacity of 142.85±0.94%, a methylene blue absorption capacity of 34.73±5.67%, and a yield of 95.26±3.23%.
Phytochemical and Antioxidant Activity of Akway (Drymis piperita Hook f.) Stem Bark Ethanol Extract Angela Myrra Puspita Dewi; Santoso, Umar; Pranoto, Yudi; Marseno, Djagal Wiseso
Advance Sustainable Science Engineering and Technology Vol. 6 No. 3 (2024): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v6i3.598

Abstract

The amount of solvent affects the effectiveness of the extraction, so the chemical components are extracted entirely from the plant. This study investigated the best ratio of Akway bark : solvent (ethanol) to produce Akway extract with the highest antioxidant activity. Extraction with the treatment of Akway skin: ethanol ratio of 1:2; 1:4; 1:6 (b/v) was carried out and then the results were tested for total phenolic and flavonoid content and antioxidant activity. The best Akway bark:ethanol ratio was obtained at 1:4 (b/v) ratio with 9.54% extract yield, 289.57 mg GAE/g total phenolic content, 185.47 mg eq quercetin/g total flavonoids. Akway bark extract has potential as a source of antioxidants as indicated by its high antioxidant activity with DPPH free radical scavenging and ferric reducing activity of 50% (IC50) at extract concentrations of 16.59 µg/mL extract and 60.93 µg/mL extract, and carotene bleaching inhibition activity of 85.76%. There are 4 types of phenolic compounds and 4 types of flavonoid compounds identified with the highest percentage of components, namely Pereniporin B (57%).
Co-Authors . Supriyanto Agus Setyoko Amalia Wahyuningtyas Budi Rahardjo Budi Rahardjo Budi Rahardjo Damayanti, Elok Dewi, Angela Myrra Puspita Didik Purwadi Elok Pawening Maharani Gatot Siswo Hutomo Haryadi Haryadi Haryadi Haryadi Indrati, Retno Joko Nugroho Wahyu Karyadi Puji Lestari Siti Hanum Indah Lestari Sri Anggrahini Sri Anggrahini Supriyanto . Supriyanto Supriyanto Supriyanto Supriyanto Titi Nur Hidayati Triwitono, Priyanto Umar Santoso Warkoyo . Widayanti, Windy Kartika Putri Yudi Pranoto