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All Journal Sigmagri International Journal of Hydrological and Environmental for Sustainability Jurnal Teknologi dan Inovasi Industri
Prayoga, Rian Adi
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Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Social Sciences

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A Review of Potency of Cassava Peel Waste and Seaweed Carrageenan as Environmentally Friendly Bioplastic Fadhallah, Esa Ghanim; Juwita, Nana; Assa'diyah, Indah Nurul; Tullaila, Sholeha; Putri, Shaffa Audya Nurin; Prayoga, Rian Adi; Iswahyudi, Bella Amanda
International Journal of Hydrological and Environmental for Sustainability Vol. 1 No. 3 (2022): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v1i3.150

Abstract

Plastic waste continues to increase every year along with the increasing number of industries and population. Accumulated plastic waste has a negative impact and harm the environmental. The initiative of 3R (reduce, reuse, and recycle) has been widely promoted, but it is not optimally implemented. The use of organic materials to substitute the synthetic materials in plastic become alternative to prevent this problem continues in the future. Bioplastics are naturally decomposed by the soil and made from renewable materials. This review aims to explore the potency of cassava peels (Manihot esculenta) and seaweed carrageenan (Eucheuma cottonii) as the bioplastic material. The method used is an effective literature review and in accordance with the topic being discussed. The discussion method is carried out based on research results that have been found by previous researchers, which are then integrated with other researchers to get strong results and conclusions. Cassava peel waste and seaweed carrageenan have the potency to be made into bioplastics because they contain polysaccharide that can form a thin layer films based on gelatinization. The development of cassava peel waste and seaweed carrageenan will becoming the promising materials as substitutions for synthetic plastic, and also could help prevent the negative impact of plastic waste. Furthermore, since the cassava and seaweed are naturally abundant, it will promoting the environmental sustainability.
Pengaruh Kadar Air terhadap Yield Minyak Atsiri Daun Kayu Putih (Melaleuca leucadendra L.) dengan Metode Hydro-Steam Distillation Prayoga, Rian Adi; Taharuddin, Taharuddin; Haviz, Muhammad
Jurnal Teknologi dan Inovasi Industri (JTII) Vol 3, No 2 (2022)
Publisher : Fakultas Teknik, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtii.v3i2.51

Abstract

Kayu putih (Melaleuca leucadendra L.) merupakan salah satu dari 12 bahan  potensial untuk diolah menjadi minyak atsiri dengan peluang komoditi ekspor yang tinggi. Untuk mengoptimalkan pemanfaatan potensi minyak kayu putih, maka perlu dilakukan usaha untuk menaikan yield dan mutu minyak sesuai dengan SNI. Salah satu caranya adalah memperbaiki kondisi operasi agar proses distilasi dapat menghasilkan yield yang optimal. Tujuan dari penelitian ini adalah untuk menjelaskan pengaruh kadar air bahan daun kayu putih terhadap yield yang dihasilkan. Metode yang digunakan adalah metode eksperimen langsung.  Variabel berubah adalah kadar air bahan dari perlakuan keringangin (0, 24, 48, 72 dan 240 jam). Kemudian dilakukan pengujian meliputi uji GC-MS (Gas Chromatography-Mass Spectometry). Hasil penelitian menunjukkan yield tertinggi adalah perlakuan keringangin 24 jam yaitu 0,5840% dengan kadar air 35,12%.
Analisis Teknikal untuk Meramalkan Harga Saham Agribisnis pada Indeks D232 BEI Prayoga, Rian Adi; Sukma, Septi Ambar Indraningtia; Purbowo, Purbowo; Chusnah, Miftachul
Sigmagri Vol. 5 No. 2 (2025): Desember
Publisher : Program Studi Agribisnis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32764/sigmagri.v5i2.1578

Abstract

This study analyzes the stock performance of selected agribusiness companies listed in the D232 Index on the Indonesia Stock Exchange from 2020 to 2024. The research aims to identify buy and sell signals using a combination of Moving Average (MA) and Stochastic Oscillator indicators. A quantitative descriptive method was employed, and eight representative stocks were analyzed. Results show that stocks such as AALI, ANDI, ANJT, and BISI exhibit strong buy signals supported by golden cross patterns and oversold conditions, while BWPT, CSRA, and DSNG present strong sell signals indicated by death cross patterns and overbought conditions. The integration of technical indicators allows investors to make informed decisions on entry and exit points. This study contributes to the literature by applying a dual-indicator approach specifically to the agribusiness sector, highlighting the relevance of MA and Stochastic Oscillator in predicting price trends and supporting investment strategies. Recommendations include using these indicators to guide trading decisions and continuously monitoring market movements for optimal timing.
Co-Authors Assa'diyah, Indah Nurul Chusnah, Miftachul Esa Ghanim Fadhallah Iswahyudi, Bella Amanda Juwita, Nana M. Haviz Purbowo, Purbowo Putri, Shaffa Audya Nurin Septi Ambar Indraningtia Sukma Taharuddin Taharuddin Tullaila, Sholeha