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All Journal AGRIKA Jurnal Penelitian Pendidikan IPA (JPPIPA) JMM (Jurnal Masyarakat Mandiri) Paspalum: Jurnal Ilmiah Pertanian Jurnal Informasi dan Teknologi Jurnal Ilmiah Pertanian ( JIPERTA) Jurnal Agriuma International Journal of Engineering, Science and Information Technology Fruitset Sains : Jurnal Pertanian Agroteknologi JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal Indonesia Sosial Sains KOLONI
Dwika Karima Wardani
Universitas Medan Area
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Penerapan Teknologi Pembuatan Pakan Ikan Berbahan Baku Ampas Tahu untuk Peningkatan Kualitas Ikan Lele dan Ekonomi Usaha Ikan Lele Rumahan di Kelurahan Asam Kumbang Asyiah, Nur; Ariani Safitri, Sri; Karima Wardani, Dwika
Jurnal Agriuma Vol. 4 No. 1 (2022): Jurnal Agriuma April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agri.v4i1.7213

Abstract

The purpose of this research is to apply the technology of making fish from tofu dregs to improve the quality of catfish and the economy of home-based catfish business in Asam Village. The tofu dregs used were obtained from the tofu and tempeh Home Industry in the Asam Kumbang Village area. The composition of the raw material for making catfish feed used is 80% tofu dregs + 20% shrimp head. The catfish feed that has been made is then tested for characteristics, namely protein 43.87%, fat 25.04%, carbohydrates 68, 73%. Observations were made for 42 days on catfish that were given fish feed from tofu dregs or those that were not given. The results obtained during 42 days of feeding fish from tofu waste with observations made on days 7, 14, 21, 28, 35 and 42 with the average weight (weight) of each fish (grams): 21, 58 , 92, 147, 193 and 240. Catfish that are ready to harvest have 5-6 tails per kg with the physical characteristics of large/fat fish. The cost of purchasing catfish seeds is Rp. 25 and the cost of making fish feed from tofu dregs for availability for 42 days (harvest mass) is Rp. 12,250. The catfish harvest period per kg is 5 fish and the selling price to the catfish seller is IDR 20,000 / kg. The catfish harvest for 42 days was 5 kg with a total selling price of Rp. 100.00. So the profit obtained from the sale of 4 kg of catfish is Rp. 87,750 or Rp. 3,500/head. 
Karakter Morfologi dan Identifikasi Kandungan Karbohidrat Beras Bambu Sebagai Pembeda Beras Putih Wardani, Dwika Karima; Dalimunthe, Nur Asyiah; Rahman, Abdul
Jurnal Informasi dan Teknologi 2023, Vol. 5, No. 1
Publisher : SEULANGA SYSTEM PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37034/jidt.v5i1.269

Abstract

Beras bambu kini mulai terkenal dikalangan masyarakat. Beras ini memliki kandungan protein tinggi dan memiliki harga yang lebih mahal dibandingkan dengan beras putih pada umumnya. Tujuan penelitian ini untuk melihat karakter morfologi pada beras bambu dan membandingkan dengan beras putih. Metode yang digunakan yaitu metode pengamatan visual menggunakan mikroskop digital 100x, pengukuran lainnya mengunakan jangka sorong dan timbangan analitik. Dari hasil pengamatan menunjukkan adanya perbedaan beras bambu dengan beras putih yang terlihat dari warna, berat, panjang, lebar, tebal maupun bentuknya. Beras bambu memiliki warna hijau, berat 0.040 gram, panjang 7 mm, lebar 3 mm, tebal 2 mm, bentuk lonjong pipih panjang dan jumlah bulir per 100 gram sebanyak 37 bulir. Sedangkan beras putih memiliki warna putih, berat 0.020 gram, panjang 7 mm, lebar 2 mm, tebal 2 mm, bentuk bagian bawah lonjong dan bagian atas setengah meruncing dan jumlah bulir per 100 gram sebanyak 63 bulir. Perbedaan warna beras bambu disebabkan karena adanya kandungan gizi dan klorofil tinggi terbuat dari sari pati bambu yang telah di perlakukan pada saat proses penggilingan. Dan dapat disimpulkan bahwa karakter morfologi yang sangat membedakan yaitu pada pengamatan warna, berat, lebar, bentuk dan jumlah bulir per 100 gram.
ANALISIS NUTRISI NUGGET AYAM HASIL SUBSTANSI TEPUNG AMPAS TAHU KELURAHAN ASAM KUMBANG Dalimunthe, Nur Asyiah; Karima Wardani, Dwika; Ade Sahfitra, Angga
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 2 (2022): Jurnal Kimia Saintek dan Pendidikan
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i2.3495

Abstract

Tujuan dari penelitian Analisis Nutrisi Nugget Ayam Hasil Substansi Tepung Ampas Tahu Kelurahan Asam Kumbang adalah untuk mengetahui kandungan % nutrisi nugget ayam hasil substansi tepung ampas tahu yaitu kadar protein, kadar lemak, kadar air, kadar abu dna kadar karbohidrat. Ampas tahu yang digunakan unuk dijadikan tepung berasal dari usaha rumahan pembuatan tahu dan tempe di Kelurahan Asam Kumbang Kelurahan. Substansi Tepung Ampas Tahu yang digunakan yaitu 0%, 10%, 30%, 50% dan 70%. Kadar protein pada nugget ayam hasil substansi tepung ampas tahu kelurahan Asam Kumbang 0% , 10%, 30%, 50%, 70% adalah 6,12%, 9,51%, 11,09%, 12,78%, 1402%. Kadar lemak pada nugget ayam hasil substansi tepung ampas tahu kelurahan Asam Kumbang 0% , 10%, 30%, 50%, 70% adalah 15,12%, 12,15%, 9,35%, 7,71%, 5,79%. Kadar air pada nugget ayam hasil substansi tepung ampas tahu kelurahan Asam Kumbang 0% , 10%, 30%, 50%, 70% adalah 5.07%, 7,49%, 9,02%, 10,88%, 12,55%. Kadar abu pada nugget ayam hasil substansi tepung ampas tahu kelurahan Asam Kumbang 0% , 10%, 30%, 50%, 70% adalah 1,77%, 1,67%, 1,31%, 1,10%, 0,90%. Kadar karbohidrat pada nugget ayam hasil substansi tepung ampas tahu kelurahan Asam Kumbang 0% , 10%, 30%, 50%, 70% adalah 25,54%, 28,67%, 33,75%, 37,11%, 40,51%. Penggunaan hasil substansi tepung ampas tahu sebagai bahan utama pembuatan nugget ayam pada substansi 30 % dan 50% memiliki kandungan nutrisi berupa kadar protein, kadar lemak, kadar air, kadar abu dan kadar protein sesuai dengan SNI 01-6683 2022 Syarat Mutu Nugget Ayam dalam 100 g sampel dan layak dan baik unuk dikonsumsi sebagai bahan makanan cemilan ang memiliki gizi ang cukup
Pengaruh Tingkat Cekaman Salinitas Terhadap Pertumbuhan Beberapa Varietas Tanaman Padi (Oryza sativa L) Hasibuan, Wahyu Ardica; Ginting, Jaya Sumana; Wardani, Dwika Karima
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 8, No 1 (2026): Jurnal Ilmiah Pertanian (JIPERTA), Maret (IN Press)
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v8i1.6589

Abstract

Rice (Oryza sativa L.) is a major food commodity, but its production is often threatened by abiotic stresses, one of which is salinity (high salt content) in agricultural land, especially in tidal swamp land or due to seawater intrusion. Salinity can inhibit growth and reduce rice productivity through three main mechanisms: (1) osmotic stress that disrupts water and nutrient absorption, (2) toxicity of sodium (Na+) and chloride (Cl−) ions that disrupt metabolism, and (3) nutrient imbalance. The salinity tolerance limit for paddy rice that is compatible with high productivity is generally less than 3.74 dS/m. This study is entitled The Effect of Salinity Stress Levels on the Growth of Various Rice Varieties (Oryza sativa L). This study is a salinity treatment on various rice varieties at various levels. The purpose of this study is to determine the types of varieties that are tolerant to different levels of salinity. The study used a factorial randomized block design (RAK) with four varieties as treatment factors: Nutrizing variety (V1), Inpari variety (V2), Inpari33 variety (V3), and Mekonga variety (V4). The second factor was the level of salinity stress, consisting of: C1 = 0, C2 = 4, C3 = 8. The observation parameters measured were plant height (cm), number of tillers, number of leaves, and flowering age, with most results showing no significant differences.
OPTIMALITASI MEDIA TANAM UNTUK KEBERHASILAN AKLIMATISASI PLANLET TANAMAN NILAM (Pogostemon cablin Benth) Wardani, Dwika Karima
Agrika Vol. 18 No. 1 (2024)
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/ja.v18i1.5543

Abstract

ABSTRAKFase aklimatisasi pada planlet merupakan tahap kritis dalam transisi dari lingkungan in vitro ke ex vivo. Tujuan penelitian ini adalah untuk mengeksplorasi variasi media tanam guna meningkatkan keberhasilan aklimatisasi planlet tanaman nilam (Pogostemon cablin Benth). Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) Non Faktorial. Rancangan eksperimen menggunakan lima perlakuan media tanam dengan tiga ulangan. Parameter yang diamati adalah tinggi tanaman, jumlah daun, diameter batang, dan panjang akar. Hasil penelitian menunjukkan bahwa perlakuan M0: Tanah Topsoil + Cocopeat + Arang Sekam (1:1:1) berpengaruh nyata terhadap tinggi tanaman, mencapai 9.13 cm pada minggu ke-3 dan 21,13 cm pada minggu ke-8, serta menghasilkan panjang akar terpanjang. Di sisi lain, perlakuan M3: Tanah Top Soil + Cocopeat + Pasir Malang (1:1:1)  memberikan pengaruh nyata terhadap jumlah daun, dari 12.83 helai pada minggu ke-3 hingga 18.33 helai pada minggu ke-8. Perlakuan  media tanam tidak memberikan pengaruh nyata terhadap diameter batang dan panjang akar tanaman nilam. Perlakuan terbaik untuk pertumbuhan tanaman nilam secara berurut dari yang tertinggi hingga terendah adalah M0, M1, M3 dan M2. ABSTRACTAcclimatization phase of plantlets is a critical stage in the transition from the in vitro to the ex vivo environment. The aim of this research is to explore variations in planting media to increase the success of acclimatization of patchouli plantlets (Pogostemon cablin Benth). The method used was a non-factorial completely randomized design (CRD). The experimental design used five planting media treatments with three replications. The parameters observed were plant height, number of leaves, stem diameter and root length. The results show that the M0 treatment: Topsoil + Cocopeat + Charcoal Husk (1:1:1) had a significant effect on plant height, reaching 9.13 cm in the 3rd week and 21.13 cm in the 8th week, as well as producing long roots. longest. On the other hand, treatment M3: Top Soil + Cocopeat + Malang Sand (1:1:1) had a real effect on the number of leaves, from 12.83 in the 3rd week to 18.33 in the 8th week. The planting media treatment did not have a significant effect on the stem diameter and root length of patchouli plants. The best treatments for patchouli plant growth in order from highest to lowest were M0, M1, M3 and M2. 
IDENTIFIKASI METABOLIT SEKUNDER PADA TANAMAN ROSEMARI (Rosmarinus officinalis) DI DESA DOLAT RAYAT, KABUPATEN KARO, SUMATERA UTARA MENGGUNAKAN METODE GC-MS Damanik, Lidya Santi; Wardani, Dwika Karima
Agrika Vol. 18 No. 2 (2024)
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/ja.v18i2.6311

Abstract

ABSTRAKTanaman rosemary (Rosmarinus officinalis) digunakan oleh masyarakat lokal Desa Rolat Rayat Kabupaten Karo, Sumatera Utara untuk pengobatan tradisional, seperti mengatasi gangguan pencernaan, nyeri otot, dan infeksi kulit. Di alam rosemary memiliki kemampuan yang menonjol dalam bertahan dari serangan hama. Penelitian bertujuan untuk mengidentifikasi dan menganalisa senyawa metabolit sekunder yang terdapat pada daun dan akar tanaman rosemary yang diperoleh dari Desa Dolat Rayat, Sumatera Utara. Analisa senyawa metabolit sekunder dilaksanakan secara kualitatif dan menggunakan Gas Chromatography-Mass Spectrometry (GC-MS). Ekstrakrosemary diperoleh melalui maserasi, di mana sampel daun dan akar masing-masing direndam dalam pelarut etanol 96% selama 3 x 24 jam pada suhu kamar. Hasil penelitian menunjukkan bahwa daun rosemary mengandung flavonoid, tanin, dan alkaloid, sementara akarnya mengandung flavonoid, terpenoid, tanin, dan alkaloid. Analisa GC-MS mengidentifikasi senyawa terpenoid utama seperti 9-tetradecen-1-ol dan dodecanal pada kedua bagian tanaman, serta senyawa tambahan 3-cyclohexene-1-acetaldehyde dan cyclohexene,1-methyl-4-(1-m) pada akar. Penelitian ini memberikan wawasan penting mengenai potensi farmakologis rosemary yang dapat dimanfaatkan untuk pengembangan produk herbal, obat-obatan dan mendukung pertanian berkelanjutan. ABSTRACTThe rosemary plant (Rosmarinus officinalis) is used by the local community of Rolat Rayat Village, Karo Regency, North Sumatra for traditional medicine, such as treating digestive disorders, muscle pain and skin infections. In nature, rosemary has a prominent ability to defend against pest attacks. The research aims to identify and analyze secondary metabolite compounds found in the leaves and roots of rosemary plants obtained from Dolat Rayat Village, North Sumatra. Analysis of secondary metabolite compounds was carried out qualitatively and used Gas Chromatography-Mass Spectrometry (GC-MS). Extract of rosemary was obtained through maceration, where each leaf and root sample was soaked in 96% ethanol solvent for 3 x 24 hours at room temperature. Research results showed that rosemary leaves contain flavonoids, tannins and alkaloids, while the roots contain flavonoids, terpenoids, tannins and alkaloids. GC-MS analysis identified the main terpenoid compounds such as 9-tetradecen-1-ol and dodecanal in both plant parts, as well as additional compounds 3-cyclohexene-1-acetaldehyde and cyclohexene,1-methyl-4-(1-m) in the roots. This research provided important insights into the pharmacological potential of rosemary which can be utilized for the development of herbal products, medicines and supporting sustainable agriculture. 
UJI METABOLIT SEKUNDER PADA DAUN DAN BUAH ARBEI HUTAN (Rubus rosifolius) DARI DESA DOLAT RAYAT MENGGUNAKAN METODE GC-MS Siregar, Aser Gunawan; Wardani, Dwika Karima; Rahman, Abdul
Agrika Vol. 18 No. 2 (2024)
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/ja.v18i2.6361

Abstract

ABSTRAKMasyarakat di Desa Dolat Rayat memanfaatkan arbei hutan (Rubus rosifolius) sebagai tanaman obat tradisional dalam kehidupan sehari-hari. Penggunaan arbei hutan sebagai obat lebih didasarkan pada pengetahuan tradisional yang diwariskan secara turun-temurun. Penelitian ini dilakukan untuk mengidentifikasi senyawa metabolit sekunder yang terkandung dalam buah dan daun arbei hutan. Penelitian dilaksanakan pada Maret-Mei 20224 di Laboratorium Pengembangan Politeknik Teknologi Kimia Industri (PTKI). Untuk mengidentifikasi kandungan senyawa aktif selain dilakukan pengujian kualitatif, juga dilakukan pengujian menggunakan metode GC-MS. Hasil penelitian menunjukkan pada buah terdapat senyawa flavonoid, terpenoid, tanin, dan alkaloid, sedangkan pada daun terdapat senyawa flavonoid, steroid dan tanin yang bermanfaat untuk kesehatan manusia dan juga untuk pertahanan diri tumbuhan. Berdasarkan hasil uji menggunakan GC-MS pada ekstrak daun arbei hutan terdeteksi beberapa senyawa metabolit sekunder yaitu 4-penten-2-ol, alkoholmethyl alcohol, ethanol, undecanoic acid, hydroxy-1, 1,9-octadecenoic acid (z)-me, methyl ester, n-hexadecanoic acid, oxacyclododecan-2-one. Senyawa yang terdeteksi pada ekstrak buah ekstrak arbei hutan yaitu methyl alcohol, pentadecanoic acid, n-hexadecanoic acid, 9-tetradecen-1-ol, (e), 1-tridecene.                                                     ABSTRACTPeople in Dolat Rayat Village use forest strawberries (Rubus rosifolius) as a traditional medicinal plant in their daily lives. The use of forest strawberries as medicine is based more on traditional knowledge passed down from generation to generation. This research was conducted to identify secondary metabolite compounds contained in forest strawberry fruit and leaves. The research was carried out in March-May 2024 at the Industrial Chemical Technology Polytechnic Development Laboratory (PTKI). To identify the active compound content, besides from qualitative testing, it was also carried out using the GC-MS method The results of the research showed that the fruit contains flavonoids, terpenoids, tannins and alkaloids, while the leaves contained flavonoids, steroids and tannins which are beneficial for human health and also for plant self-defense. Based on the test results using GC-MS on forest strawberry leaf extract, several secondary metabolite compounds were detected, namely 4-penten-2-ol, alcohol-methyl alcohol, ethanol, undecanoic acid, hydroxy-1, 1,9-octadecenoic acid (z)-me, methyl ester, n-hexadecanoic acid, oxacyclododecan-2-one. The compounds detected in forest strawberry fruit extract were methyl alcohol, pentadecanoic acid, n-hexadecanoic acid, 9-tetradecen-1-ol, (e), 1-tridecene. 
Induksi Kalus Tanaman Nilam (Pogostemon Cablin Benth) Dengan Pemberian Konsentrasi Auksin Jenis 2,4-D (Dichlorophenoxyacetic Acid) Dan Picloram Dwika Karima Wardani
Jurnal Indonesia Sosial Sains Vol. 1 No. 05 (2020): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v1i05.73

Abstract

Penelitian ini bertujuan untuk mengetahui konsentrasi zat pengatur tumbuh auksin dari jenis 2,4-D dan Picloram yang paling efektif terhadap pembentukan kalus tanaman nilam endemik Pasaman Barat yaitu Aksesi Situak secara  In-Vitro.  Penelitian telah dilaksanakan di Laboratorium Kultur Jaringan Fakultas Pertanian Universitas Andalas. Metode analisis yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan perlakuan yaitu Tanpa Konsentrasi, 1 mg/L 2,4-D + 1 mg/L BAP, 2 mg/L 2,4-D + 1 mg/L BAP, 3 mg/L 2,4-D + 1 mg/L BAP, 1 mg/L Picloram + 1 mg/L BAP, 2 mg/L Picloram + 1 mg/L BAP, 3 mg/L Picloram + 1 mg/L BAP, total keseluruhan terdiri dari 7 perlakuan dengan 3 ulangan dengan 3 botol per ulangan. Data dianalisis secara statistik dengan uji F pada taraf nyata 5%. Apabila F hitung lebih besar dari F tabel 5%, maka dilanjutkan dengan uji Duncan’s New Multiple Range Test (DNMRT) pada taraf 5%. Hasil penelitian menunjukkan bahwa perlakuan konsentrasi 1,0 mg/L 2,4-D + 1,0 mg/L BAP dan 2,0 mg/L Picloram + 1,0 mg/L BAP merupakan konsentrasi auksin yang terbaik.
Qualitative and Quantitative Analysis of Vitamins, Micro-Macro Nutrient Content and Physicochemical Characteristics of Surat Dibata Leaves (Macodes Petola) Dalimunthe, Nur Asyiah; Aziz, Rizal; Wardani, Dwika Karima; Sahfitra, Angga Ade
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12257

Abstract

This research was conducted with the aim of determining the vitamin content, micro-macro nutrients, and physicochemical properties contained in the leaves of the Surat Dibata plant (Macodes petola). The analysis procedure included qualitative and quantitative vitamin tests using the DCPIP method and UV-Vis spectrophotometry, analysis of micro-macro nutrients using AAS, and measurement of water content, ash, pH, and water-soluble organic compounds based on the AOAC standard method. The test results showed that qualitatively these leaves contain vitamins C, B1, and E, with concentrations (mg/100 g) of 47.8; 1.02; and 0.99, respectively. Meanwhile, for micro-macro nutrients such as Fe, Zn, Mg, and Ca, quantitative results showed levels (mg/kg) of 47.2; 30.7; 212.3; and 433.7, respectively. Furthermore, the detected water content was 79.22%, the ash content was 10.15%, the pH was 5.8, and the water-soluble organic compound content reached 66.6%. Overall, this data shows that Surat Dibata leaves have great potential as a natural source of nutrients and phytochemicals that support the development of herbal products and environmentally friendly agriculture.
Co-Authors Abdul Rahman Abdul Rahman Abdul Rahman Agus Ardi AHMAD RAFIQI TANTAWI Ali Syahbana Angga Ade Sahfitra Anwar Mendrofa Damanik, Lidya Santi Erwin Pane Ginting, Jaya Sumana Gusmeizal Gusmeizal Hasibuan, Wahyu Ardica Lilis Handayani Berutu Mahliza Nasution Nur Asyiah Nur Asyiah Dalimunthe Nur Asyiah, Nur Rizal Aziz, Rizal Siregar, Aser Gunawan Sri Ariani Safitri Sri Ariyani Safitri Syahbudin Hasibuan