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All Journal Jurnal Pengolahan Hasil Perikanan Indonesia Agrointek SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Sains dan Teknologi Pangan E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Chemistry Indonesian Journal of Chemical Research Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Jurnal Abdi Insani Jurnal Abadimas Gorontalo geoedusains: Jurnal Pendidikan Geografi JURNAL REKAYASA KIMIA & LINGKUNGAN
Kumalaningrum, Amalia Nur
Institut Teknologi Kalimantan
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Optimization of polyphenolic compound extraction as natural antioxidants from pineapple peel waste (Ananas comosus (L.) Merr.) using ultrasonic-cellulase extraction (UCE) method Kumalaningrum, Amalia Nur; Yosep, Anestasya; Yuniar, Rizka Ayu; Simamora, Gevbry Ranti Ramadhani; Avanza, Mona Rida
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 8, No 4 (2025)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2025.008.04.5

Abstract

This study aimed to optimize the ultrasonic–cellulase extraction (UCE) method for recovering polyphenolic compounds with high antioxidant activity from pineapple peel waste. Pineapple peel is an abundant agro-industrial byproduct containing valuable phenolic compounds with potential applications in functional foods. The extraction process was optimized by varying several parameters, including the solvent-to-sample ratio (10–50 mL/g), enzyme concentration (5–25%), pH (3–7), temperature (30°C–70°C), ultrasonic amplitude (30–70%), and extraction time (30–150 min). The optimal conditions were achieved at a solvent-to-sample ratio of 50 mL/g, enzyme concentration of 15%, pH of 6, temperature of 50°C, ultrasonic amplitude of 70%, and extraction time of 120 min, yielding the highest total phenolic content of 37.80 ± 4.21 mg GAE/g. Comparative analysis showed that the UCE method produced higher polyphenolic content (28.04 ± 1.08 mg GAE/g) and stronger antioxidant activity (IC₅₀ = 9.27 µg/mL) than enzyme-assisted extraction (EAE) or ultrasonic-assisted extraction (UAE) alone. These findings confirm the synergistic effect of ultrasonic cavitation and enzymatic hydrolysis, which enhances the release of bioactive compounds. This study highlights UCE as an effective, green, and energy-efficient technology for transforming pineapple peel waste into natural antioxidants, contributing to sustainable food processing and environmental conservation.
Evaluation of Eucheuma cottonii and Gracilaria sp. as Food Buffer for The Ibu Kota Nusantara (IKN) Based on Proximate Analysis Gevbry Ranti Ramadhani Simamora; Amalia Nur Kumalaningrum; Siti Munfarida; Olga Galih Rakha Siwi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.836-845

Abstract

East Kalimantan Province has great opportunities as a buffer for the IKN economy based on the utilization of marine potential. Eucheuma cottonii and Gracilaria sp. are the red seaweeds (Rhodophyta) most widely cultivated in Indonesia. This study aims to analyze the proximate content in two types of red seaweed, namely E. cottonii (offshore cultivation) and Gracilaria sp. (pond cultivation) obtained from farmers in dry conditions cultivated around the waters of Balikpapan, East Kalimantan, Indonesia. The results of the analysis showed significant differences between cultivation locations. Gracilaria sp. (pond cultivation) taken from Handil (HTK) and Babulu Laut (BALUKE) is considered potential because it has low water content (HTK 26.99 ± 0.02%), and has higher ash content (BALUKE 31.18 ± 0.41%), fat (BALUKE 0.36 ± 0.01%), protein (BALUKE 10.01 ± 0.01%), and crude fiber (HTK 1.90 ± 0.16%) compared to E. cottonii. These findings provide important information for the development of seaweed as a natural resource for the food and health industries. Keywords: Eucheuma cottonii, Food industry, Gracilaria sp., proximate content, Red seaweeds
Optimasi formula plasticizer gliserol dan filler carboxymethyl cellulose terhadap kekuatan mekanik pada biodegradable film packaging berbasis pati singkong Siti Munfarida; Amalia Nur Kumalaningrum; Nita Ariestiana Putri; Jefri Pandu Hidayat; Rizka Ayu Yuniar; Lasma Barbara Naibaho
AGROINTEK Vol 20, No 1 (2026)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v20i1.28410

Abstract

The use of conventional plastics, which are difficult to degrade, has caused serious environmental problems, necessitating alternatives in the form of biodegradable plastics (bioplastics). Biofilms are anticipated to address social issues in line with the 12th SDG goal, namely the management and reduction of packaging waste generated daily. By utilizing abundant local cassava starch, the produced biofilms are anticipated to possess good mechanical properties and low water absorption, making them a potential eco-friendly alternative for food packaging while supporting the use of local resources. This study aims to develop cassava starch-based biofilms as environmentally friendly packaging by optimizing the formulation of carboxymethyl cellulose (CMC) and glycerol. The research employs cassava starch as the primary matrix, CMC as a filler to enhance mechanical properties, and glycerol as a plasticizer to improve the flexibility of the biofilm. The research methods include cassava starch extraction, mixing of materials with stirring and heating, and drying the gel into a biofilm. The biofilm's characteristics were analyzed through tensile strength and elongation tests. The results showed that the formula with a cassava starch concentration of 15 grams, 1% CMC, and 6% glycerol yielded the highest tensile strength value of 1.56 MPa, meeting the Japanese Industrial Standard (JIS) for edible films (≥ 0.392 MPa). The best elongation value reached 199.6%, demonstrating excellent flexibility according to JIS and Indonesian National Standards (SNI). This study indicates that the appropriate combination and concentration of materials can produce biofilms with the potential to replace conventional plastics, support environmental sustainability, and optimally utilize local resources
Pengolahan Melon (Cucumis melo L.) Menjadi Selai dan Pembuatan Kompos Kebun Sumber Berkah untuk Mendukung Perkebunan Berkelanjutan Kumalaningrum, Amalia Nur; Arista, Yuvita Lira Vesti; Simamora, Gevbry Ranti Ramadhani; Mohwadati, Adisti Rofiah; Lumbantobing, Febrina Natasya; Atmayanti, Tiara Riski; Alviano, Benediktus Mbasa; Gea, Fenima; Farisky, Farisky; Ariyanto, Muhammad Fikri; Aulia, Ahmad Redha; Faadihilah, Fani Nur; Ar-Rahman, Muhammad Shafwan
E-Dimas: Jurnal Pengabdian kepada Masyarakat Vol 17, No 1 (2026): E-DIMAS
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/e-dimas.v17i1.26736

Abstract

Desa Sumber Berkah di kawasan Gunung Steling, Balikpapan Utara, memiliki potensi agraris tinggi dengan komoditas utama berupa melon. Namun, sebagian hasil panen dijual dalam bentuk segar, sementara buah yang tidak lolos sortasi sering dibuang, menyebabkan kerugian ekonomi dan penumpukan limbah organik. Kegiatan pengabdian masyarakat ini bertujuan meningkatkan nilai tambah hasil pertanian melalui pengolahan melon menjadi selai serta pemanfaatan limbah organik menjadi kompos. Program dilaksanakan tahun 2025 dengan sasaran utama ibu-ibu di Kebun Melon Sumber Berkah. Metode kegiatan mencakup observasi lapangan, demonstrasi pembuatan selai, perbaikan alat pencacah, pelatihan pembuatan kompos, sosialisasi UMKM, dan evaluasi. Hasil menunjukkan peningkatan keterampilan masyarakat dalam mengolah melon menjadi selai dengan tekstur lembut dan cita rasa seimbang. Perbaikan alat pencacah meningkatkan efektivitas pembuatan kompos yang memperbaiki kesuburan tanah dan mengurangi penggunaan pupuk kimia. Evaluasi menunjukkan tingkat kepuasan peserta minimal 80% dengan penilaian positif terhadap manfaat, kejelasan materi, dan relevansi kegiatan. Program ini berhasil meningkatkan nilai ekonomi hasil pertanian, mengurangi limbah, serta mendorong pembentukan UMKM berbasis produk lokal. Keterlibatan aktif masyarakat menjadikan kegiatan ini model potensial bagi pengembangan perkebunan berkelanjutan di wilayah lain.
Co-Authors Adhitya, Sayid Rifqy Adi F, M. Akbar Alfian, Ricky Ali Imran Alviano, Benediktus Mbasa Aqilasyam, Rafa Ahza Ar-Rahman, Muhammad Shafwan Arini, Zulmilafatma Nurlita Ariyanto, Muhammad Fikri Atmayanti, Tiara Riski Aulia, Ahmad Redha Avanza, Mona Rida Azhary, Muhammad Fachrul Bachtiar, Nova Christyandari, Debora Ayu Ciciolini Sidabutar, Elizabeth Desfelia Dewi, Rachel Glory Julyana Eka Saputri, Eka Ernanda Sofi Faadihilah, Fani Nur Farisky, Farisky Febrina S.L. Lumbantobing Gea, Fenima Gevbry Ranti Ramadhani Simamora Hendrik Vicarlo Saragih Herlin, Farrah Widy Immanuel, Legi Raymond Isabella, Mayati Jefri Pandu Hidayat Jefri Pandu Hidayat khusnul khotimah Lasma Barbara Naibaho Maharini, Maulidiya Malcheli, Etni Jechonia Manik, Anriyani Michael Alexander Hutabarat Mohwadati, Adisti Rofiah Munfarida, Siti Nita Ariestiana Putri Ni’matus Sholihah Nusantara, Bangun Garuda Olga Galih Rakha Siwi Panjaitan, Shindi Claudia Poeloengasih, Crescentiana Dewi Prawiguna, Erick Purba, Arini Anestesia Pusfitasari, Memik Dian Putri, Sabrina Aulia Rimma Sianipar Rizka Ayu Yuniar Rizka Ayu Yuniar Sabillah, Hana Saleha, Shela Siagian, Joel Parulian Apriadi Silmina, Silmina Siti Munfarida Syafitri, Tatia Asnur Tari, Sarnita Trees Sandy, Aisyah Winarni Wulandari, Nani Yongki Christandi Batubara Yosep, Anestasya Yuvita Lira Vesti Arista Zanuar F, Naufal