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All Journal Jurnal Ilmu Dasar BERKALA SAINSTEK UNEJ e-Proceeding JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya ALCHEMY Jurnal Penelitian Kimia SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Warta Pengabdian Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jurnal Kartika Kimia Jurnal Teknologi Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Dedikasi: Jurnal Pengabdian kepada Masyarakat Jurnal Pijar MIPA Makara Journal of Science Sewagati Jurnal Teknik Kimia dan Lingkungan InSTEM Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Polimesin al Kimiya : Jurnal Ilmu Kimia dan Terapan Jurnal Penelitian Sains dan Teknologi Indonesia Indonesian Journal of Science and Education Dinamika Kerajinan dan Batik: Majalah Ilmiah
Istiqomah Rahmawati
Research Center For Biobased Chemical Product, Program Studi Teknik Kimia, Universitas Jember
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Socialization of Vegetable Waste Processing into Eco-Friendly Fish Pellets at SMK Muhammadiyah 7 Gondanglegi Rahmawati, Istiqomah; Ansori; Arie Setiawan, Felix; Palupi, Bekti; Fachri, Boy; Rizkiana, Meta; Mumtazah, Zuhriah; Kharisma Yolanda Putri, Ditta; Dwi Lestari, Fitria; Naufal Nizaar Aziz, Mohamad; Pramasta, Ady
Jurnal Inovasi Sains dan Teknologi Untuk Masyarakat Vol. 4 No. 1 (2026): Mei
Publisher : Faculty of Mathematics and Natural Sciences, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/instem.v4i1.60007

Abstract

Vegetable waste is often discarded without further processing, which can lead to environmental pollution. In fact, this waste still contains 12.64%–23.5% crude protein and 20.76%–29.18% crude fiber, which can be repurposed into an environmentally friendly, value-added product: fish pellets. The lack of understanding regarding this waste poses a challenge, necessitating alternative solutions. This outreach method serves as an educational solution to enhance understanding of the potential of vegetable waste as a raw material for fish pellets. The outreach activity was conducted at SMK Muhammadiyah 7 Gondanglegi and was attended by students from various departments. The implementation stages included preparation, outreach, and evaluation. During this activity, participants were provided with materials on the benefits of vegetable waste and the steps for processing it into fish pellets. A question-and-answer session followed this to allow participants to explore the material in greater depth. The results of this activity have tangibly improved participants' understanding of processing vegetable waste into fish pellets. Participants played an active role and participated enthusiastically in this activity, creating a positive impact on both the participants and the school. Consequently, this activity can be further developed with the school's support to ensure the program's sustainability.  
Optimasi Ekstraksi Flavonoid dari Ulva lactuca dengan Kombinasi Cell Disruption dan Ultrasound-Assisted Hot Water Helda Wika Amini; Muhammad Rizky Kurniawan; Nida Ayu Salsabila; Boy Arief Fachri; Zuhriah Mumtazah; Meta Fitri Rizkiana; Istiqomah Rahmawati; Bekti Palupi; Yukti Nurani; Rekfa Wika Amini
ALCHEMY Jurnal Penelitian Kimia Vol 21, No 2 (2025): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.21.2.98141.284-295

Abstract

Ulva lactuca merupakan biota laut yang berpotensi sebagai sumber bahan aktif kosmetik karena kandungan bioaktifnya seperti flavonoid, alkaloid, saponin, terpenoid, dan tanin. Penelitian ini bertujuan mengekstraksi flavonoid serta menganalisis nilai Sun Protection Factor (SPF) U. lactuca menggunakan kombinasi metode cell disruption dan ultrasound-assisted hot water (UAHW). Tiga metode perlakuan cell disruption (tanpa perlakuan, osmotic shock, dan hidrotermal dengan autoklaf) dikombinasikan dengan variabel UAHW yaitu suhu ultrasonik (40, 60, 80 °C) dan waktu ultrasonik (5, 10, 15 menit). Ekstraksi dilakukan menggunakan pelarut etanol 96% pada serbuk U. lactuca berukuran 60 mesh. Optimasi dilakukan menggunakan Response Surface Methodology (RSM) dengan Box–Behnken Design (BBD). Hasil menunjukkan bahwa total flavonoid dan nilai SPF tertinggi (33,23 mg QE/g dan SPF 20,80) diperoleh tanpa perlakuan cell disruption, pada suhu 80 °C dan waktu ekstraksi 10 menit. Penelitian ini menegaskan bahwa metode UAHW efektif meningkatkan ekstraksi flavonoid dan SPF meskipun tanpa cell disruption. Selain itu, pendekatan RSM terbukti efisien dalam optimasi proses. Studi ini memberikan kontribusi pada pengembangan bahan aktif alami U. lactuca untuk aplikasi kosmetik, khususnya sebagai agen pelindung sinar UV.Optimization of Flavonoid Extraction from Ulva lactuca Using a Combination of Cell Disruption and Ultrasound-Assisted Hot Water. Ulva lactuca is a marine organism with significant potential as a source of active ingredients for cosmetic applications, owing to bioactive compounds such as flavonoids, alkaloids, saponins, terpenoids, and tannins. This study aimed to extract flavonoids and evaluate the Sun Protection Factor (SPF) of U. lactuca using a combination of cell disruption methods and ultrasound-assisted hot water (UAHW) extraction. Three cell disruption treatments (no treatment, osmotic shock, and hydrothermal using an autoclave) were combined with UAHW variables, including ultrasonic temperature (40, 60, 80 °C) and ultrasonic time (5, 10, 15 minutes). The extraction was conducted using 96% ethanol as a solvent on U. lactuca powder sieved to 60 mesh. Optimization was performed using Response Surface Methodology (RSM) with a Box–Behnken Design (BBD). The highest total flavonoid content (33.23 mg QE/g extract) and SPF value (20.80) were obtained without cell disruption, at 80°C for 10 minutes. The study confirms that UAHW effectively enhances flavonoid extraction and SPF, even without cell disruption. Furthermore, the RSM approach proved efficient for process optimization. This study contributes to developing natural active ingredients from U. lactuca for cosmetic applications, particularly as UV-protective agents.
Co-Authors Abdul Malik Karim Amrullah Achmad Sjaifullah Adelina, Saltsabita Nourin Adrian, Febri Afwal, Diza Raudhatul Ahmad Reza Maulufi Al Fajri, Maktum Muharja Alfarizi, Muhammad Alfian Anak Agung Nabilla Azzahrah Anggraini, Ranita Anggi Annisa, Yasmin Ansori Ansori Ansori Ari Susanti Arie Setiawan, Felix Ariel Seanhan Haezer Arkan, Naufal Asshofy , Muhammad Agil Atiqa Rahmawati Atiqa Rahmawati Atiqa Rahmawati Azizi, Daffa Hafiziaulhaq Badril Azhar Badril Azhar Bambang Piluharto Bekti Palupi Bimo Bayu Aji Boy Arief Fachri Boy Fachri Brilianto, Mochamad Syadam Busroni, Busroni Danang Yudistiro Dani Hari Tunggal Prasetiyo Dihayat, Icha Shofia Dini Rahmawaty Ditta Kharisma Yolanda Ditta Kharisma Yolanda Putri Dwi Intan Noer Aini DWI LESTARI, FITRIA Elisah, Nor Endar Hidayat Eriska Eklezia Dwi Saputri Fachri, Boy Fakhri Arkaan Humaidi Farwah, Zilma Aliyah Fatimah, Dianavita Felix Arie Setiawan Firmansyah, Arfian Alwi Firmansyah, Muhammad Sahrul Firsta Retnaningtyas Udroto Fitriati, Diana Gailani, Jauhairiyah Gavinda Tsubutul Akmal Gregah Pangayoman Hartanto P Gregah Pangayoman Hartono Putro Habibatul Inayah Harti Arini Helda Wika Amini Helda Wika Amini Heni Pujiastuti Herdianto, Dimas Nur Hidayat, Debby Aurellia Hilda Huril Ainia Humaidi, Fakhri Arkaan Ilyas Arya Pratama Indrayani, Lilin Kamiliah, Thiflatul Kharisma Yolanda Putri, Ditta Lailatul Krisna Abdullah Lestari, Afrila Tutut Dwijati Lilis Nurhasanah Lumbantoruan, Sri Lestari Maharani, Regita Gustiayu Pramisti Mahfud Mahfud Mahfud Mahfud Maktum Muharja Maryanto Maryanto Megasari, Tri Elok Setya Merymistika Yufrani Afred Meta Fitri Rizkiana Mizanurafi’ Ghifarhadi Prasiefa Mohammad Nor Muhammad Ilham Muhammad Nabil Suryagama Muhammad Reza Muhammad Reza Muhammad Rizky Kurniawan Muhammad Taufiqurrohman, Muhammad Muharja, Maktum Nanda Ayudiyah Andriani Nanda Ayudiyah Andriani Naufal Nizaar Aziz, Mohamad Nayyara Aida Buana Nida Ayu Salsabila Nikita Meidi Nirina Indi Naraismanti Nova Chintya Kurniawati Nova Chintya Kurniawati Nugroho, Yeremia Prasetya Nur Karima Nur Karima Nurkholisah, Siti Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Ocita Galuh Permatasari Pradipta, Shima Nuril Pramasta, Ady Pravitasiwi, Nanda Tricya Julia Purimahua, Amanda Augre Maharani Putri Ayu Salsabila Rafif, M. Attar Rahma Rei Sakura Rahman, Agus Ramadana, Ifan Ratri Sekaringgalih Regita Gustiayu Pramisti Maharani Rekfa Wika Amini Reswara Musyafa Ridho, Moh Zeinur Rizalluddin, Muhammad Rizki Fitria Darmayanti Rizkiana, Meta Robaniyah, Septiana Kholifatur Salahuddin Junus Saputra, Dicky Aditya Sa’roni, Achmad Septiana, Windi Yudita Septianti, Kiki Shabrina, Nadhilah Shofiah , Laila Nur Sholeha, Irdatus Susanti, Tria Susilowati Susilowati Syawaludin, Syafriel Razaan Tarigan, Eigiya Nina Udroto, Firsta Retnaningtyas Uzinuzulla, Yunita Virda Wardani, Salza Belila Kusuma Wardhani, Maharani Tri Wibowo, Jihan Nafila Wiwik Pratiwi Yakub Hendrikson Manurung Yohanes Yohanes Yukti Nurani Zuhriah Mumtazah Zuhro, Syarifa Aminatuz