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All Journal JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI
ANAK AGUNG MADE DEWI ANGGRENI
JURUSAN TEKNOLOGI INDUSTRI PERTANIAN FAKULTAS TEKNOLOGI PERTANIAN UNIVERSITAS UDAYANA
Agriculture, Biological Sciences & Forestry Chemistry Immunology & microbiology Industrial & Manufacturing Engineering

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Karakteristik Kompos Dari Limbah Kulit Buah Pada CV. Mahajaya Sangkara, Bali Food Industry Dengan Perlakuan Effective Microorganism 4 (EM4) Puspaningrum, Ade; Triani, I Gusti Ayu Lani; Anggreni, Anak Agung Made Dewi
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 12 No 2 (2024): Juni
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2024.v12.i02.p02

Abstract

Fruit skin waste can still be used into environmentally friendly, useful, and value-added products, one of which is compost. The addition of EM4 bioactivator to composting can affect composting time faster than natural composting. This study aims to determine the effect of EM4 concentration treatment on the characteristics of compost from fruit skins by-products of frozen food in CV. Mahajaya Sangkara, Bali Food Industry and determine the characteristics of compost produced with the addition of EM4 which can produce compost with characteristics according to SNI 19-7030-2004. The experimental design used was a Group Randomized Design with EM4 concentration as a treatment consisting of five levels, namely 0%, 25%, 50%, 75%, 100%. The treatment was grouped 3 times based on the time of its implementation so that 15 experimental units were obtained. The data obtained are analyzed for variance and if the treatment affects the observed variables, it is continued with the Honest Real Different Test (BNJ). The results showed that the addition of EM4 bioactivator had a very real effect on the temperature, pH, color, and yield of compost but had no effect on the organic matter content of compost. The best treatment that produces characteristics according to SNI 19-7030-2004 is the addition of EM4 bioactivator by 75% which produces compost with compost temperature characteristics of 32.22±0.07oC, compost pH 7.23±0.06, compost color L* 3.67±0.58, a* 0.33±0.58, b* 2.67±0.58, organic matter content 28.68±7.14%, and yield 51.11±0.96%. Keywords : compost, compost characteristics, Effective Microorganism (EM4), fruit peel, organic matter
Stabilitas Dan Ukuran Partikel Mikroemulsi Minyak Atsiri Sereh (Cymbopogon Citratus) Dengan Rasio Surfaktan Dan Ko-Surfaktan Putra, Anak Agung Gede Surya Pradana; Suhendra, Lutfi; Anggreni, Anak Agung Made Dewi
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 13 No 2 (2025): Juni
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRMA.2025.v13.i02.p05

Abstract

Lemongrass essential oil, derived from the Cymbopogon citratus plant, is a highly beneficial essential oil widely used in the pharmaceutical, food, and cosmetic industries. Microemulsions are colloidal systems consisting of two immiscible phases, namely the oil phase and the water phase, stabilized by surfactants and co-surfactants. This study aims to evaluate the effect of the surfactant and co-surfactant ratio on the characteristics of lemongrass essential oil microemulsions and to determine the optimal formulation ratio that produces the best microemulsion. In this study, 11 different surfactant and co-surfactant ratio variations were used, with each treatment being tested twice, resulting in a total of 22 experimental units. The analysis results indicated that the surfactant and lemongrass essential oil mixture ratio had a highly significant effect (P<0.05), with the obtained variance values falling below the thresholds of 0.01 and 0.05. The research data revealed that the best lemongrass essential oil microemulsion formulation was achieved at a 60:40 ratio, with an index value of 0.144±0.005 and a transmission value of 87.07±0.820244. After centrifugation, the index was 0.061±0.008, with a transmission value of 95.907±1.53017, resulting in a transparent appearance with a slightly sticky texture.
Co-Authors I Gusti Ayu Lani Triani Lutfi Suhendra Puspaningrum, Ade Putra, Anak Agung Gede Surya Pradana