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Improving Skills Through Training in Freshwater Fish Farming and Crystal Guava Jam Production (Bantarjaya Village, Bogor Regency, West Java) Umar, Ali; Risdiyanto, Idung; Albarkah, Anita Maharani; Aziz, Maulana; Bagaskara, Muhammad Fajar
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 10, No 1 (2024): March
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.88148

Abstract

Fish farming is a type of fishing that involves cultivating various fish on land. Fish farming success can be influenced by site characteristics, water quality, fish suitability, and care. Crystal guava processing is a production utilization innovation. This has the potential to raise the value of crystal guava commodities, which can be consumed directly but are also processed into various derivative products. The community groups will be divided into two foster groups: the MSME group that makes crystal guava jam and the foster group that grows fish in irrigation ponds. This empowerment approach involves the creation of supporting infrastructure such as ponds in irrigation canals and the production of crystal guava jam. Then, using the t-test on the dependent mean and Principal Component Analysis, integrated training was carried out, including socializing and field practice, to quantify statistical development in abilities. As a result, the target community's understanding has increased. The target group (community) can increase their abilities in fish cultivation, the production of novel products (commodity derivatives), and marketing across various phases with the creation of supporting infrastructure.
Development of Bioplastic Films from Cassava Peel Starch Reinforced with Banana Midrib Nanocellulose and the Effect of Sorbitol on Mechanical Strength Albarkah, Anita Maharani; Soebrata, Betty Marita; Kemala, Tetty
Jurnal Kimia Sains dan Aplikasi Vol 28, No 8 (2025): Volume 28 Issue 8 Year 2025
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.28.8.426-435

Abstract

Cassava peel and banana midrib, two abundant agricultural wastes, were utilized as sources of starch and cellulose to develop environmentally friendly bioplastic films. Cellulose was isolated through delignification and bleaching, followed by ultrasonication to produce nanocellulose. The obtained nanocellulose was characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and a Particle Size Analyzer (PSA), which confirmed distinct cellulose functional groups, a crystallinity index of 58.7%, and an average particle size of 326.44 nm. Bioplastic films were prepared by blending cassava peel starch with banana midrib nanocellulose and varying concentrations of sorbitol as a plasticizer. The incorporation of nanocellulose increased thickness, density, and tensile strength, while reducing water absorption and water vapor transmission rate (WVTR), likely due to the reinforcing effect of nanocellulose within the polymer matrix. The addition of sorbitol at different concentrations influenced the mechanical properties of the bioplastics, with the composition containing 0.89 g sorbitol exhibiting favorable tensile strength and elongation. The optimal formulation consisted of 2.85 g cassava peel starch, 0.15 g nanocellulose, and 0.89 g sorbitol, yielding a tensile strength of 2.76 MPa and an elongation of 11.19%. These findings demonstrate that incorporating sorbitol and nanocellulose significantly enhances the performance of starch-based bioplastics, highlighting their potential application in sustainable packaging materials.