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All Journal Journal of Natural Sciences and Mathematics Research Jurnal Agrotropika AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) JTPG (Jurnal Teknologi Pertanian Gorontalo)
Nurma Pratiwi
Department Of Agricultural Technology, Politeknik Negeri Lampung, Bandar Lampung, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology Physics

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Red Ginger oleoresin nanoemulsion characteristics by ultrasonication Nurma Pratiwi; Chandra Utami Wirawati; Dwi Eva Nirmagustina
Journal of Natural Sciences and Mathematics Research Vol 8, No 2 (2022): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.2022.8.2.12494

Abstract

Red ginger is a biopharmaceutical plant that is used as herbal medicine. The use of red ginger in the food industry is mainly in an emulsion form, but that is unstable and hydrophobic. The ultrasonication technique could change the emulsion into a nanoemulsion to minimize these disadvantages. This research aimed to determine the effect of ultrasonication on red ginger oleoresin nanoemulsion characteristics. The study used a completely randomized design of 4 treatments based on sonication time (0, 30, 60, and 90 minutes). The study was analyzed by ANOVA Tukey's test at P ≤ 0.05, it showed that ultrasonication affected the characteristics of red ginger oleoresin nanoemulsion. The best result shows that in 90 minutes mixed time with transparent yellow colour. It is soluble in acetone, methanol, ethanol, and aquadest solvents. The best particle size is 572.43±8.72 nm, and antioxidant activity is (IC50) 16.34 ±1.33 ppm.©2022 JNSMR UIN Walisongo. All rights reserved.
Characteristics of Corn Cob Cellulose Based Bioplastics as Active Packaging for Pempek (Traditional Fish Cake) Products Pridata Gina Putri; Nurma Pratiwi; Fahrulsyah; Taufik Nugraha Agassi; Deary Amethy Zahrotinufus
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 10 No. 3 (2026)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v10i3.989

Abstract

The high level of corn production in Lampung Province has the potential to generate a large amount of corncob agricultural waste. Corncobs are lignocellulosic residues with a high cellulose content, making them a promising raw material for the production of biodegradable bioplastics. This study aimed to produce and characterize corncob cellulose–based bioplastics combined with chitosan as active packaging to extend the shelf life of food products, particularly pempek. Cellulose was extracted through acid hydrolysis, delignification, alkalization, and bleaching processes, and subsequently formulated into bioplastic films using the solution casting method with varying cellulose concentrations. The bioplastics were characterized in terms of thickness, tensile strength, elongation, biodegradability, and water vapor transmission rate (WVTR). The results showed that increasing cellulose content led to an increase in bioplastic thickness and tensile strength, while elongation and biodegradability decreased. Bioplastic thickness increased from 0.18 mm to 0.25 mm, and tensile strength increased from 0.96 MPa to 7.55 MPa with higher cellulose content. Meanwhile, elongation decreased from 98.6% to 45.21%, and biodegradability declined from 38.91% to 23.61%. In addition, the WVTR decreased to 0.021 g/m²·h at the highest cellulose concentration, indicating improved water vapor barrier properties. These findings suggest that corncob cellulose–based bioplastics with chitosan have strong potential to be developed as environmentally friendly active packaging for food products requiring mechanical protection and moisture control. Contribution to Sustainable Development Goals (SDGs):SDG 2: Zero HungerSDG 9: Industry, Innovation, and InfrastructureSDG 12: Responsible Consumption and ProductionSDG 15: Life on Land
Pengolahan Limbah Cair Berbasis Zero Waste Pada Industri Minyak Pala Menjadi Cairan Desinfektan Ailsa Ailsa Azalia; Subandi Subandi; M. Perdiansyah Mulia H.H; Nurma Pratiwi
JTPG (Jurnal Teknologi Pertanian Gorontalo) Vol 10 No 1 (2025): Jurnal JTPG (Mei)
Publisher : PROGRAM STUDI MESIN DAN PERALATAN PERTANIAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtpg.v10i1.1438

Abstract

Indonesia memiliki potensi besar dalam pengolahan minyak atsiri pala, khususnya di provinsi Lampung. Proses penyulingan minyak atsiri pala menghasilkan limbah cair yang disebut hidrosol. Sampai saat ini, hidrosol belum dimanfaatkan secara optimal. Penelitian ini bertujuan untuk mengembangkan konsep pengelolaan limbah berbasis zero waste melalui proses diversifikasi produk untuk menjadi cairan desinfektan yang berbahan baku utama yaitu hidrosol. Hidrosol pala mengandung senyawa aktif seperti DEHA, asam benzoat, dan terpenoid yang berpotensi sebagai agen antimikroba. Metode yang digunakan dalam penelitian ini meliputi analisis neraca massa untuk memetakan keseimbangan material selama proses produksi dan formulasi cairan desinfektan melalui metode eksperimental deskriptif. Analisis produk dilakukan secara kualitatif deskriptif . Hidrosol dari limbah penyulingan minyak atsiri pala digunakan sebagai bahan utama dan selanjutnya ditambahkan bahan kimia seperti NaOH, arpus, camperlan, dan aquades untuk menghasilkan cairan desinfektan. Analisis produk mencakup stabilitas larutan, warna, dan aroma. Hasil penelitian menunjukkan bahwa limbah cair yang selama ini dibuang dapat dimanfaatkan menjadi produk yang bernilai tambah. Cairan desinfektan yang dihasilkan memiliki stabilitas larutan yang baik, berwarna kuning transparan, dan memiliki aroma khas pala hal ini sesuai dengan karakteristik cairan desinfektan secara fisik. Penerapan prinsip zero waste tidak hanya meminimalkan limbah tetapi juga meningkatkan efisiensi dan peluang pendapatan industri. Penelitian ini memberikan solusi ramah lingkungan untuk pengelolaan limbah agroindustri minyak atsiri pala sekaligus mendukung diversifikasi produk untuk kebutuhan sanitasi.
BIOAKTIVITAS NANOPARTIKEL ZnO HASIL GREEN SYNTHESIS BERBASIS EKSTRAK DAUN Annona muricata TERHADAP Spodoptera frugiperda Sigit Ardiansyah; Nurma Pratiwi; Pebria Sisca
JURNAL AGROTROPIKA Vol. 25 No. 2 (2026): Jurnal Agrotropika Vol 25 No 2, Oktober 2026
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v25i2.13268

Abstract

The intensive use of chemical insecticides to control the invasive pest Spodoptera frugiperda has contributed to the development of insecticide resistance and environmental pollution, necessitating eco-friendly bio-insecticide alternatives. This study aimed to evaluate the contact toxicity, antifeedant activity, and repellent of green-synthesized zinc oxide nanoparticles (ZnO NPs) based on Annona muricata leaf extract against third-instar S. frugiperda larvae. The ZnO nanoparticles were synthesized by reacting zinc acetate dihydrate with A. muricata leaf extract at pH 11 and 70 °C. The bioactivity was evaluated through contact toxicity assays, antifeedant activity tests (no-choice test), and repellent assays (two-choice test). Physical characteristics of the nanoparticles were analyzed using a Particle Size Analyzer (PSA). The results demonstrated time-dependent toxicity, with the  value decreasing from 1721.60 ppm 24 hours after treatment (HAT) to 1064.28 ppm 72 hours after treatment (HAT). The highest antifeedant activity was achieved at a concentration of 1600 ppm with 84.83% (strong) at 24 HAT, while the maximum repellent rate of 60.00% was obtained at 1600 ppm after 24 hours. PSA characterization revealed a Z-average hydrodynamic size of 208.4 nm, a polydispersity index (PI) of 0.624, and a zeta potential of −30.1 mV. In conclusion, ZnO nanoparticles synthesized based A. muricata extract show high potential as bio-insecticidal agent for controlling S. frugiperda pest.  
Co-Authors Agassi, Taufik Nugraha Ailsa Ailsa Azalia Chandra Utami Wirawati Deary Amethy Zahrotinufus Dwi Eva Nirmagustina Fahrulsyah M. Perdiansyah Mulia H.H Pebria Sisca Pridata Gina Putri sigit ardiansyah Subandi Subandi