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Bimantio, Mohammad Prasanto
Teknologi Hasil Pertanian, Institut Pertanian Stiper
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Nursing Public Health Social Sciences Veterinary Other

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Empowering the Giri Muda Farmers Group through Biochar Production Training from Agricultural Waste in Ponjong, Gunungkidul Bimantio, Mohammad Prasanto; Noviyanto, Amir; Jaya, Galang Indra
DIKDIMAS : Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 3 (2025): DIKDIMAS : JURNAL PENGABDIAN KEPADA MASYARAKAT VOL 4 NO 3 DESEMBER 2025
Publisher : Asosiasi Profesi Multimedia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/dikdimas.v4i3.545

Abstract

Background: The agricultural areas of Ponjong, Gunungkidul, are dominated by marginal drylands with low soil fertility and organic matter content. Farmers often rely on chemical fertilizers and open burning of crop residues, leading to soil degradation and environmental pollution. Biochar technology offers an eco-friendly solution to improve soil health and reduce waste.Aims: This study aims to strengthen the capacity of the Giri Muda Farmers Group in producing and applying biochar derived from agricultural waste and promoting sustainable soil management practices through participatory technology transfer.Methods: The program was implemented through participatory stages including preparation, socialization, training, demonstration, and field application. The rotary pyrolysis unit was introduced for efficient biochar production using rice straw and maize stalks as feedstock. Evaluation was conducted using pre- and post-tests, observation, and interviews.Results: Farmers demonstrated a 38% improvement in knowledge scores, and 100% of participants were able to operate the pyrolysis equipment independently. Field trials showed improved soil aggregation, higher moisture retention, and more vigorous maize seedling growth on biochar-amended plots. The farmers also committed to continuing biochar production collectively.Conclusion: The community service program successfully transferred appropriate pyrolysis technology to local farmers, improving soil quality, resource efficiency, and community empowerment. The initiative demonstrates that biochar production from agricultural waste can simultaneously address environmental issues and strengthen rural livelihoods.
Effect of Tea Variety and Oxidation Duration on Oolong Tea Processed at PPTK Gambung Research Center Bimantio, Mohammad Prasanto; Maulana, Hilman; Aristian, Dika
International Journal of Food Sciences and Nutrition Innovations Vol. 1 No. 2 (2025): International Journal of Food Sciences and Nutrition Innovations (December)
Publisher : CV. Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/ijfsni.v1i2.127

Abstract

Background of study: Oolong tea is commonly produced from Camellia sinensis leaves, while the use of assamica variety has been rarely investigated. Differences in varietal composition and oxidation duration may influence chemical and sensory characteristics of oolong tea, particularly antioxidant performance and polyphenol content.Aims and scope of paper: This study examined how tea variety and oxidation time affect moisture content, polyphenols, antioxidant activity, and sensory properties of oolong tea. The scope included physicochemical and organoleptic evaluation to determine processing conditions that optimize functional quality.Methods: A randomized block design with two factors was applied, namely variety (sinensis and assamica) and oxidation duration (15, 25, and 60 minutes), each with four replications. Measurements included moisture, polyphenols, antioxidant activity using DPPH, and sensory evaluation of color, aroma, and taste.Result: Variety significantly affected moisture, polyphenols, and antioxidant activity, while sensory differences were observed only in color. Oxidation time significantly influenced antioxidant activity but not moisture or polyphenols. The highest antioxidant activity occurred in assamica at 15 minutes, whereas longer oxidation reduced antioxidant levels.Conclusion: The assamica variety produced higher polyphenol and antioxidant values than sinensis. Shorter oxidation preserved antioxidant activity, indicating that combining appropriate variety selection with controlled oxidation may enhance the functional attributes of oolong tea. 
Co-Authors Adi , Ruswanto Adisetya, Erista Alva Edy Tontowi Amallia Ferhat Amir Noviyanto Andeswari, Arvi Yashinta Andreas Wahyu Krisdiarto Arialistya, Yhone Aristian, Dika Astri Wulandari Astuti Widyowanti, Reni Ayu, Indah Kusuma Crisdiantoro, Edwin Eka Dian Pratama Putra Dian Pratama Putra Dian Pratama Putra Dian Pratama Putra Egga Bella Erick Firmansyah Fadhila, Irvandy N Faizin, Indra Muhammad Ferhat, Amallia Gani , Supriyanto Gani Supriyanto Hangger G. Mawandha Hasanah, Tyas Titi Nur Hasto Wisnugroho, Anthonius Dhinar Herawati Oktavianty Hilman Maulana Ida Bagus Banyuro Partha Intani, Erin Tya Intani, Erin Tya Jaya, Galang Indra Jaya, Galang Indra jaya Josua Hutabarat Juanda, Sandy Iskandar Keviana, Agesty Krisdiarto, Andreas Wahyu Kusumastuti Marbun, Lusia Valentina Maria Ulfah Marturia Sembiring, Haris Maulana, Khalid Muhamad Pahmi Pradana Muhammad Farros Prabowo Muhammad Ramadhan Mulyani, Zeni Kurnia Nanda Satya Nugraha Nanda Satya Nugraha Nanda Satya Nugraha Ngatirah Ngatirah Ngatirah Ngatirah Noviyanto, Amir Nugraha, Nanda Satya Oktavianty, Herawati Pauliz Budi Hastuti Pelawi, Jeremia Mamanda Putra, Dian Pratama Putu Fajar Kartika Lestari Raharjo, Dedy Tri Rama Zakaria Reni Astuti Widyowanti Reni Astuti Widyowanti Reni Astuti Widyowanti Resna Trimerani, Resna Reza Widyasaputra Rios, Jeremia Yosafat Ruswanto, Adi Saswati Saswati Siti Tamaroh Cahyono Murti Suendra, Akhta Suparyanto, Teddy Supriyanto, Gani Uktoro, Arief Ika Yundari, Yundari Zahro, Nabila Hidayatuz