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All Journal Jurnal Kedokteran Brawijaya AGRIKA CEMARA Journal of Natural Sciences and Mathematics Research Jurnal Ekonika : Jurnal Ekonomi Universitas Kadiri Jurnal Agrotek UMMat Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian AGROMIX BUANA SAINS Jurnal Ilmiah Hijau Cendekia Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS Cendekia : Jurnal Pengabdian Masyarakat AGROTEK: Jurnal Ilmiah Ilmu Pertanian Jurnal Agriovet Journal of Food Technology and Agroindustry JURNAL ILMIAH AGRINECA Jurnal Abdiraja Fruitset Sains : Jurnal Pertanian Agroteknologi East Asian Journal of Multidisciplinary Research (EAJMR) Jurnal Manajemen Agribisnis dan Agroindustri Formosa Journal of Multidisciplinary Research (FJMR) Formosa Journal of Applied Sciences (FJAS) Asian Journal of Community Services (AJCS) JAPI: Jurnal Akses Pengabdian Indonesia Journal Research of Social Science, Economics, and Management Journal of Soilscape and Agriculture International Journal of Integrative Research (IJIR) International Journal of Advanced Technology and Social Sciences (IJATSS) JTePP
Nunuk Helilusiatiningsih
Departemen Agroteknologi , Fakultas Pertanian, Universitas Islam Kadiri
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Application of POC fertilization from organic waste and humic acid on the growth and production of sweet corn (Zea mays L. Saccharata sturt) Helilusiatiningsih, Nunuk; Syahara, Muhammad Alwi
AGROMIX Vol 15 No 2 (2024)
Publisher : Fakultas Pertanian Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/agx.v15i2.4434

Abstract

Introduction: Sweet corn in Indonesia was the main commodity after rice, and it was useful for food, the snack processing industry, semi-finished ingredients, side dishes, and animal feed. Problems with sweet corn farming include limited land, inappropriate cultivation technology, expensive superior seeds, insufficient water availability, fertilizers and pesticides that do not meet needs, as well as expensive and difficult labor, and competition with other commodities. The quality of the corn was that the husk was bright green and slightly moist, the sweet corn tassels were light brown and moist, and the grain texture was dense. The research aimed to analyze the effect of adding humic acid and POC on the growth and yield of sweet corn. Methods: The experimental design was RAKF. The first factor was humic acid (A) consisting of 4 levels: control, 5 kg/ha, 10 kg/ha, and 15 kg/ha. The second factor is POC (P) consisting of 5 levels: control, 60 ml/l, 90 ml/l, 120 ml/l, and 150 ml/l so there are 20 experimental combinations. Analysis used the F count test, 5% BNT test, and 5% DMRT test. Results: In the analysis of plant height, number of leaves, and weight of corn with and without husks, the best combination was A3P4.The P4 level (150 ml/L) has the highest level of sweetness but is not significantly different, the degree of sweetness was 16.25 brix. Addition of humic acid at a concentration of 15 kg/Ha. Produces a sweetness degree of 18.35 brix. Conclusion: The results of the study indicated a significant influence from the combination of treatments, as well as an interaction between the experimental treatments. The most effective combination was A3P4, which involved a humic acid concentration of 15 kg/ha and a POC dose of 150 ml/L. This combination yielded the best results for the tested parameters and sweetness levels.
Characterization and Antioxidant Activity Assay of Essential Oil Parts of Rosella (Hibiscus sabdariffa L.) Helilusiatiningsih, Nunuk; Syahara, Muhammad Alwi; Irawati, Titik
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.671-678

Abstract

Rosella (Hibiscus sabdariffa L.) is known as a plant whose calyx contain high levels of antioxidant bioactive compounds and good inhibitory power against free radicals. However, other parts of the rosella plant have not yet been utilized for their antioxidant content and activity. The aim of this research is to compare the profiles of essential oils of parts of the rosella plant (seeds, leaves and flower petals) and their antioxidant activity. This research method begins with the process of extracting essential oils using the water-steam distillation method. Furthermore, the profile of the essential oil is known from the results of yield calculations and characterization using the GC-MS instrument. The antioxidant activity was tested using the DPPH method. The yield of essential oils obtained was 0.0107% for seeds, 0.0087% for leaves and 0.0136% for flower petals. GC-MS characterization shows that the most abundant chemical components contained in the essential oils of seeds, leaves, and flower petals are fatty acid compounds (2-propanoic acid, butanoic acid, hexanoic acid) and esters (neopentyl isobutyrate). The results of the antioxidant activity test showed the IC50 value for each essential oil, namely, seeds: 30.15 μg/ml, leaves: 171.27 μg/ml and flower petals: 126.58 μg/ml. The compound characteristics obtained showed the best results for rosella seed essential oil, this was supported by the fairly high antioxidant activity test results IC50 <50 μg/ml. Keywords: Antioxidant activity, Characterization, Essential oils, IC50, Yield.
Antioxidant activity assay of Roselle (Hibiscus sabdariffa) seeds Ethanol extract with DPPH radical scavenging using UV-Vis Spectrophotometer Syahara, Muhammad Alwi; Helilusiatiningsih, Nunuk; Irawati, Titik
Journal of Natural Sciences and Mathematics Research Vol. 10 No. 1 (2024): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

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Abstract

Hibiscus sabdariffa (Roselle) is known to have a strong antioxidant compound. Thus, the calyx becomes the most important area to research. Another part of this plant that was starting to be known for its benefits is rosella seeds. Roselle seeds are a source of fat-soluble antioxidants. The aim of this study was to investigate the antioxidant activity of Roselle Seed Ethanol Extract (RSEE) with the DPPH (1,1-Diphenyl-2 Picrylhidrazyl) radical scavenging method. This research begins by doing the extraction of Roselle seeds using ethanol (96%) as a solvent and then assessing the antioxidant activity (Radical Scavenging Activity/RSA) of the extract, which is compared with the ascorbic acid standard at several concentrations (5-200 ppm). Antioxidant activity was assessed with DPPH Radical Scavenging using UV-Vis spectrophotometer and IC50 value parameters. The results of this study were the absorbance of DPPH from spectrophotometer at 517 nm was 0,824 (purple color). The absorbance of RSEE and ascorbic acid at 5 ppm to 200 ppm, respectively 0.523-0.124 and 0.594-0.112. The antioxidant activity (RSA) of the RSEE and ascorbic acid, respectively was  57.93% and 59.24%. The IC50 value of RSEE was 30.158 μg/ml and as comparison is ascorbic acid, the IC50 value was 26.948 μg/ml. Thus, the antioxidant activity of roselle seeds ethanol extract (RSEE) belongs to a very strong category (<50 μg /ml). This is due to the presence of several phenolic compounds and unsaturated fatty acid derivatives.
EFEK BLANCHING TERHADAP KANDUNGAN PROKSIMAT PADA TEPUNG WORTEL (Daucus carota L.) Helilusiatiningsih, Nunuk
Jurnal Teknologi Pangan dan Produk Pertanian Vol 1 No 01 (2025): Jurnal Teknologi Pangan dan Produk Pertanian (JTePP)
Publisher : Universitas Widyagama Malang

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Abstract

Kandungan tepung wortel meliputi beta karoten, serat, protein, lemak, vitamin dan mineral serta zat bioaktif antioksidan. Blanching adalah metode proses pemanasan cepat untuk menginaktivasi enzim yang umum dilakukan dengan suhu kurang dari 100°C, dapat dilakukan dengan air, uap dan energi microwave. Tujuan penelitian adalah mempelajari efek blanching terhadap kandungan proksimat pada tepung wortel. Metode penelitian adalah uji kuantitatif dengan parameter kadar proksimat meliputi kadar air, kadar abu, lemak, protein, dan serat. Perlakuan percobaan ada 3 jenis yaitu tanpa blanching, blanching kukus dan rebus selama 10 menit. Hasil analisa proksimat pada tepung wortel tanpa blanching (TB) berturutan yaitu kadar air kadar abu, protein, lemak, serat dalam (%) yaitu 9,45; 3,21; 7,56; 4,23; 17,35, tepung BK yaitu 7,36; 2,19; 9,99; 5,87; 20,41, dan tepung BR yaitu 8,15; 2,98; 8,12; 5,12; 18,10. Jadi pengaruh blanching mempertahankan kadar proksimat lebih tinggi dibanding tanpa blanching, yang paling baik adalah dengan metode kukus menghasilkan tepung wortel yang tinggi kadar proksimatnya.
PENENTUAN KADAR MINERAL PADA ORGAN TANAMAN ROSELLA (Hibiscus sabdariffa) METODE AAS (Atomic Absorption Spectroscopy) helilusi, nunuk
Jurnal Teknologi Pangan dan Produk Pertanian Vol 1 No 2 (2025): Jurnal Teknologi Pangan dan Produk Pertanian (JTEPP)
Publisher : Universitas Widyagama Malang

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Abstract

Rosella dapat tumbuh dengan subur di Indonesia terutama daerah dataran tinggi,. Tanaman ini sangat dikenal saat ini karena kelopak bunga rosella dapat digunakan sebagai minuman kesehatan yang dapat menyembuhkan berbagai penyakit seperti hipertensi, diabetes, dan diuretik. Permasalahan yang belum dilakukan penelitian adalah kandungan mineral pada organ tanaman sebab setelah panen raya tanaman ini akan di cabut sehingga limbahnya berupa batang, akar, daun tidak banyak digunakan. Penelitian bertujuan mempelajari kandungan mineral pada batang, daun, akar, biji, kelopak bunga. Metode yang digunakan yaitu AAS, Hasil penelitian menunjukkan hasil secara berurutan Kadar mineral bunga : Kalium (K): 1456 mg/100g; Magnesium (Mg): 58 mg/100g; Kalsium (Ca): 337 mg/100g; Fosfor (P): 115 mg/100g; Besi (Fe): 2,3 mg/100g; Seng (Zn): 1,4 mg/100g. Kadar mineral biji : Kalium (K): 1287 mg/100g; Magnesium (Mg): 76 mg/100g; Kalsium (Ca): 225mg/100g; Fosfor (P): 165 mg/100g; Besi (Fe): 3,3mg/100g; Seng (Zn): 2,1 mg/100g. Kadar mineral daun : Kalium (K): 1.668mg/100g; Magnesium (Mg): 115 mg/100g; Kalsium (Ca): 424 mg/100g; Fosfor (P): 236 mg/100g; Besi (Fe): 4,3 mg/100g; Seng (Zn): 3,6 mg/100g. Kadar mineral batang: Kalium (K): 1.350mg/100g; Magnesium (Mg): 62 mg/100g; Kalsium (Ca): 243 mg/100g; Fosfor (P): 128 mg/100g; Besi (Fe): 2,5 mg/100g; Seng (Zn): 1,8 mg/100g. kadar mineral akar : Kalium (K): 857 mg/100g; Magnesium (Mg): 38 mg/100g; Kalsium (Ca): 166 mg/100g; Fosfor (P): 72 mg/100g; Besi (Fe): 1,8 mg/100g; Seng (Zn): 0,6 mg/100g.
Analisa Unsur Hara dan Uji Swot Pupuk Organik Dari Limbah Kepala Lele: Analisa Unsur Hara dan Uji Swot Pupuk Organik Dari Limbah Kepala Lele Endro Puji Astoko; Nunuk Helilusiatiningsih
JURNAL ILMIAH AGRINECA Vol 26 No 2 (2026): JURNAL ILMIAH AGRINECA
Publisher : JURNAL ILMIAH AGRINECA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v26i2.6617

Abstract

The catfish farming industry uses a significant amount of water for its production processes, resulting in significant waste production. Catfish are a type of freshwater fish highly sought after by Indonesians. Catfish waste often causes problems due to its foul odor due to contamination with the environment, which is rich in putrefying microbes. The research location was the Laboratory in collaboration with the P3GI Laboratory in Kediri Regency. The research method used AAS ang SWOT analysis. The test samples used liquid organic fertilizer and solid fertilizer produced from the process of making fertilizer from catfish head and offal waste. The results of the study are as follows: the main macronutrients of the POC from catfish head waste are Nitrogen (N) at an average of 1.37%, Phosphorus (P) at 2.40%. Potassium (K) content at 3.90%, and Organic Carbon at 0.52%. Solid catfish head waste fertilizer contains 4.5% nitrogen (N), 6.80% phosphorus (PO4), and 4.70% potassium (K). Organic carbon (C) is 31%. Therefore, the nutrient analysis results for the organic fertilizer production process from catfish head waste show that the solid organic catfish waste fertilizer has the highest nutrient content, which is very good for plants. SWOT analysis is very important to carry out to make it easier to produce safe, reliable and good quality fertilizer.
Optimasi Nitrogen dan Kerapatan Tanaman Terhadap Produktivitas Kangkung Darat (Ipomoea reptans Poir): Optimasi Nitrogen dan Kerapatan Tanaman Terhadap Produktivitas Kangkung Darat (Ipomoea reptans Poir) Setyo Utomo, Pamuji; Mustopa, Tarwa; Helilusiatiningsih, Nunuk
JURNAL ILMIAH AGRINECA Vol 26 No 2 (2026): JURNAL ILMIAH AGRINECA
Publisher : Fakultas Pertanian UTP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v26i2.6793

Abstract

Land spinach (Ipomoea reptans Poir.) is an economically important leafy vegetable widely consumed in Indonesia due to its high nutritional value, including vitamins, minerals, dietary fiber, and bioactive compounds beneficial to human health. The increasing demand for fresh vegetables has encouraged efforts to improve land spinach productivity. However, productivity at the farm level remains suboptimal, partly due to inappropriate nitrogen fertilization and plant density management. Nitrogen is a key nutrient regulating vegetative growth, while plant density determines the level of competition for light, water, nutrients, and growing space. This study aimed to evaluate the effects of nitrogen application rates, plant density, and their interaction on the growth and productivity of land spinach. The hypothesis proposed that increasing nitrogen rates combined with appropriate plant density would enhance plant growth and productivity, and that a significant interaction exists between both factors. The experiment was conducted in Tanon Village, Papar District, Kediri Regency, Indonesia, from October to November 2025 using a factorial Randomized Complete Block Design (RCBD) with three replications. The first factor consisted of three urea application rates (300, 400, and 500 kg ha?¹), while the second factor consisted of three plant densities (4, 5, and 6 seeds per planting hole). Data were analyzed using analysis of variance (ANOVA), followed by the Least Significant Difference (LSD) test at the 5% significance level. The results showed that nitrogen application significantly affected plant height, leaf number, leaf area, fresh weight per plant, and fresh weight per plot. Plant density also significantly influenced most growth and yield variables. A significant interaction between nitrogen rate and plant density was observed for leaf area, fresh weight per plant, and fresh weight per plot. The combination of 500 kg urea ha?¹ and 4 seeds per planting hole produced the highest fresh weight per plant (67.68 g plant?¹), whereas the combination of 500 kg urea ha?¹ and 6 seeds per planting hole resulted in the highest productivity (9.98 kg plot?¹ or approximately 49.9 t ha?¹). It can be concluded that increasing nitrogen application up to 500 kg ha?¹ combined with appropriate plant density management effectively enhances the growth and productivity of land spinach. For maximizing yield per unit area, the combination of 500 kg urea ha?¹ and 6 seeds per planting hole is recommended.
Co-Authors A. Harijono Adam Indra Nirwana Adji, Galih Dina Oktavia Edy Soenyoto Endro Puji Astoko Eva Pebriana Eva Pebriana Fahmi Hidayat FITRIYAH, NUR Fristama Maulana H., Nunuk Haliza, Nadiyah Nur Heru Setiyadi Hidayat Sujuti Idris, Ahmad Imam Habibi Indis, Nadhifah Al Irawati, Titik Lisnanti, Ertika Fitri Micko Widiyatmoyo Muhamad Abdul Aziz Al Wafa Muhamad Alwi Shahara Muhammad Alwi Syahara, Muhammad Alwi Nadhiva Al Indis Nastiti Winahyu Naufa Anwar, Diva Navita Maharani Pamuji Setyo Utama Pamuji SU Purbowo, Muhammad Lukman Rahmatika, Widyana Ribut Santosa Rosanti, Aulia Dewi Sani, Muhammad Yulius Saptaria, Lina SIMON BAMBANG WIDJANARKO Sumarji Supriyono Supriyono Tarwa Mustopa Titik Irawati Titik Irawati Titik Irawati Utomo, Pamuji Setyo Vifi Nurul Choirina Yushi Mardiana