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All Journal VALENSI Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal Bulletin of Chemical Reaction Engineering & Catalysis Communications in Science and Technology ASEAN Journal of Chemical Engineering Aptekmas : Jurnal Pengabdian Kepada Masyarakat Dharma: Jurnal Pengabdian Masyarakat Jurnal Teknik Kimia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Paradigma: Pemberdayaan & Pengabdian Kepada Masyarakat
Kusuma, Heri Septya
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The Extraction of Oxalate Acid from Porang Flour (Amorphophallus oncophyllus) using Microwave-Assisted Solvent Extraction Ansori, Ansori; Kusuma, Heri Septya; Maula, Fikaputri Rohmatul; Qadariyah, Lailatul; Mahfud, Mahfud
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 9, No. 2, November 2023
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v9i2.34706

Abstract

Porang (Amorphophallus oncophyllus) is one of the local annual plants that contain high levels of oxalate. Oxalates are undesirable compounds in porang flour, and their levels must be removed or reduced to obtain high quality porang flour as a food ingredient. In this research, the extraction of oxalate acid was conducted using microwave-assisted solvent extraction and mechanical separation methods. This study aims to analysis the parameters that influence the extraction of oxalate acid using microwave-assisted solvent extraction such as the effect of microwave power, extraction time, feed-to-solvent ratio (F/S) and material size. The mechanical separation process will be studied the effect of material size for extraction of oxalate acid. The optimum yield obtained for oxalate acid extraction with microwave-assisted solvent extraction was microwave power of 600 W, extraction time of 30 min, feed-to-solvent ratio of 0.05 g/mL and porang size of 100 mesh obtained by oxalate acid yield of 24.78%. Porang size of 100 mesh was the optimum yield obtained for extraction of oxalate acid using mechanical separation method. The result of physical properties test using SEM-EDX and FTIR shows that extraction of oxalate acid from porang using microwave extraction method could produce oxalic acid which has good quality. In addition, extraction using microwave offers an environment-friendly extraction method, which can accelerate and increase the oxalate acid extraction yield.
MENGATASI EROSI DAN TANAH LONGSOR MELALUI KEGIATAN “TEBAR WANGI” DI DUSUN JAGALAN Amanda Elliora Arista; Ayu Andira; Jihan Rona Fauziyah Ahmad; Kalya Dinda Az-Zahra; Novita Anastasya Fitri; Kusuma, Heri Septya
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 7 No 3 (2024): APTEKMAS Volume 7 Nomor 2 2024
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/apts.v7i2.8645

Abstract

Soil erosion is one of the biggest enemies for farmers in Indonesia. The speed of erosion that cannot be matched by the soil formation that occurs can cause serious global problems such as the land crisis. Strengthening the soil is one option to prevent erosion, one method is through planting plants. A strategic study and design is needed to compile appropriate activities such as an effective planting system. Therefore, we are holding the “Tebar Wangi” activity, which is a series of vetiver planting activities to overcome erosion and landslides. Vetiver is a plant that is easy to maintain and very effective in controlling erosion and landslides. Vetiver plants planted on hard, rocky slopes will hold soil particles tightly. The “Tebar Wangi” program will be carried out in collaboration with the Pemuda Harapan Sapta (PHS) Youth Organization which is expected to also increase the productivity of the PHS Youth Organization.
SOSIALISASI “WASTE EDUCATION” DENGAN PENDEKATAN GAMIFIKASI Ganing Irbah Al Lantip; Xenna Mutiara; Shinta Justicia Dellarohita; Destyana Eky Rahayu; Luke Arinda Febryola; Kusuma, Heri Septya
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 7 No 3 (2024): APTEKMAS Volume 7 Nomor 2 2024
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/apts.v7i2.8849

Abstract

Trash has become one of the urgent issues affecting the environment. Unfortunately, public awareness, particularly among students, about sorting waste according to its type is still not optimal. The “Waste Education” outreach activity aims to educate students of Universitas Pembangunan Nasional “Veteran” Yogyakarta, especially the 2023 TK-B Class of the Department of Chemical Engineering, on the importance of proper waste management. This outreach activity was attended by 15 students. The socialization utilized a gamification approach in its implementation. The activity began with a presentation followed by playing a game from the website wordwall.com. This game was used to evaluate the students' understanding of the material presented earlier. After the gamification activity was completed, the team created a questionnaire on menti.com as a benchmark to measure the effectiveness of the event. Overall, participants gave positive feedback and found the “Waste Education” activity with the gamification method to be engaging and enjoyable.
DISEMINASI DARING PKM-PM AZIMATH ADVENTURE: PENGUATAN LITERASI NUMERASI SISWA SEKOLAH DASAR SEBAGAI FONDASI LITERASI KESEHATAN DAN REGENERASI MAHASISWA BARU Kusuma, Heri Septya
JURNAL PARADIGMA (PEMBERDAYAAN & PENGABDIAN KEPADA MASYARAKAT) Vol 7 No 2 (2025): JURNAL PARADIGMA : VOLUME 7 NOMOR 2 OKTOBER 2025
Publisher : STIKES NGUDIA HUSADA MADURA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36089/pgm.v7i2.2745

Abstract

Numeracy is a fundamental skill that should be mastered from the elementary school level, serving not only academic purposes but also as a foundation for daily problem-solving and health literacy. However, the 2022 PISA results revealed that Indonesian students’ mathematics performance remains relatively low, underscoring the need for early interventions. Responding to this challenge, the Azimates team developed an innovative learning media, Azimath Adventure, to strengthen the numeracy skills of fifth-grade students at SD Negeri 2 Pangenjurutengah. The program employed a game-based learning approach, enabling students to engage in interactive mathematical activities. Pre-test and post-test results demonstrated improvements in students’ numeracy performance, indicating the effectiveness of this intervention. In addition to the school-based activity, the program incorporated a dissemination session conducted online via Zoom, targeting freshmen students of the 2025 cohort. This dissemination aimed to introduce the fundamental concepts of the Community Service Program (PKM), particularly PKM-PM, while also sharing practical experiences from the Azimath Adventure implementation. The session was structured into presentations, discussions, and interactive Q&A, attended by 53 participants, of which 48 were freshmen. The outcomes highlighted twofold contributions: (1) elementary students benefitted from enhanced numeracy skills as part of their cognitive and health literacy foundation; and (2) freshmen students gained initial understanding of PKM, strengthened motivation to participate in future community service projects, and developed awareness of program management. This integrated activity illustrates how combining school-based interventions with online academic dissemination can provide significant added value for both community partners and student participants. The program also demonstrates alignment with principles of health education (knowledge transfer), health administration (systematic program planning and management), and health research (evaluation and documentation of outcomes for future replication).
SOSIALISASI TEKNOLOGI TEPAT GUNA DALAM PRODUKSI GULA AREN DI DESA KALIABU, MAGELANG Kusuma, Heri Septya; Bambang Sugiarto; Didi Saidi; Retno Dwi Nyamiati
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 7 No 1 (2024): APTEKMAS Volume 7 Nomor 1 2024
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36257/apts.v7i1.8585

Abstract

Palm sugar has wide scope as an alternative sweetener in the Indonesian market. Palm sugar is a natural alternative to cane sugar which is less healthy and also more beneficial for farmers. The taste, sensory profile, and nutritional content of palm sugar vary based on the species, growing region, and climatic conditions. Currently, the traditional processing of palm sap in Kaliabu village results in lower yields and higher costs. There is enormous potential in the field of developing processing techniques (traditional processing, spray drying, membrane technology, and vacuum drying) to optimize palm sugar production in Kaliabu village. Spray drying is a non-conventional method that has the potential to be implemented in palm sugar production in Kaliabu village. This is because spray drying is quite good in terms of increasing antioxidant and phenolic content as well as storage capacity.
Co-Authors A.B. Ilmi Achmad Chumaidi Achmad Chumaidi, Achmad Achmad Roesyadi Admiralia, Cininta Aldri Frinaldi Amanda Elliora Arista Amelia, Prilia Dwi Anak Agung Istri Sri Wiadnyani Ari Susanti Arie Prayoga Ayu Andira Bambang Sugiarto Bambang Sugiarto D.K. Zafira Destyana Eky Rahayu Didi Saidi Ganing Irbah Al Lantip I.E. Agustina Ike Dayi Febriana Jihan Rona Fauziyah Ahmad Kalya Dinda Az-Zahra L Baqih Lailatul Qadariyah Luke Arinda Febryola Mahfud Mahfud Mahfud Mahfud Mahfud Mahfud Maula, Fikaputri Rohmatul Novita Anastasya Fitri Nyamiati, Retno Dwi Rahmaniah Malik Rahmaniah Malik Retno Dwi Nyamiati Rismawati Rasyid Selfina Gala Selfina Galan Shinta Justicia Dellarohita Sudrajat, Robby Ginanjar Margo Suranto Suranto Susanto, David Febrilliant Xenna Mutiara Zakijah Irfin Zakijah irfin