bluuebunny/crossref_metadata_2025_split huggingface dataset:
Algerian wild green carob (Ceratonia siliqua L.): Physicochemical characteristics and antioxidant potency
Authors: Ayad Rima , Ayad Radia , Zineddine Latifa , El Houda Berghida Nour 
Published: November 2023

The main purpose of this study was to determine the proximate composition and physicochemical properties of Algerian wild green carob collected from three separate locations in Jijel province (northeast of Algeria), as well as to investigate its antioxidant potency. The results showed that the three samples were substantially comparable in terms of proximate compositions and physicochemical attributes. They have an acidic pH range and a very low fat content. In terms of phytochemical properties, Texenna green pods had the highest levels of polyphenols, flavonoids, and flavonols, with concentrations of 87.10 ± 0.07 μg GAE/mg DM, 4.90 ± 0.06 μg QE/mg DM, and 37.0 ± 0.19 μg QE/mg DM, respectively. Furthermore, the total antioxidant capacity of the methanolic extracts was determined using the phosphomolybdate method and found to be 154.62 µg AAE/mg DM. These promising findings revealed that unripe Ceratonia siliqua L. from the Texenna region is a rich source of natural antioxidants that could be employed more broadly in functional food formulations.
KEY WORDS: Ceratonia siliqua L., Unripe pods, Proximate composition, Physicochemical properties, Bioactive compounds, Antioxidant potency
Bull. Chem. Soc. Ethiop. 2024, 38(1), 187-198. DOI: https://dx.doi.org/10.4314/bcse.v38i1.14
Evaluation of improved corrosion resistance of Zn alloy as electrode material by Co3O4 coatings
Authors: J. Golden Renjith Nimal R. , F. Melvin Jose D. , Balasubramanian K. , Sunil J. 
Published: November 2023

This work uses the sonochemical method to represent synthesized cobalt oxide nanoparticles (Co3O4) and analysed using different techniques. The X-ray diffraction analysis (XRD) and Fourier-transform infrared spectroscopy (FTIR) examinations of the synthesized nanoparticles confirmed their cubic structure and average crystallite size of 21.3 nm. The spherical surface shape and presence of components with a particle size of 25.3 nm were revealed. Scanning probe microscopy (SPM) methods analysed the Co3O4 coated plates' surface characteristics, including roughness and topographical ideas. An aqueous electrolyte medium (6 M KOH) was used to investigate the electrochemical corrosion behaviour of Co3O4-coated plates. According to the Tafel plot, coating Zn plates with a high surface area and mesoporous Co3O4 in KOH electrolytes greatly reduced the corrosion of the plates. The coated plates are thermally treated up to 600℃. The temperature-dependent anticorrosive properties of Co3O4 NPs are evaluated.
KEY WORDS: Co3O4, Zn plate, Tafel plot, Linear sweep voltammetry, Anti-corrosive performance, Nanoindentation
Bull. Chem. Soc. Ethiop. 2024, 38(1), 241-253. DOI: https://dx.doi.org/10.4314/bcse.v38i1.18
Kinetics, isotherms, and thermodynamic modeling of light lanthanides(III): La(III) and Gd(III) using Mn–Ni nanoparticles
Authors: F. El-Aryan Y. 
Published: November 2023

The sorption of light lanthanides, La(III) and Gd(III) on Mn–Ni nanoparticle was studied at varying ions concentrations, pH, contact time and temperatures. The kinetics of sorption of La(III) and Gd(III) were investigated, the experimental data were analyzed using the pseudo-first-order, pseudo-second-order forms, Elovich, and intra-particle diffusion models. The sorption kinetics of investigated ions was described by pseudo-second-order model. The experimental isotherms data were analyzed using Freundlich, Langmuir, and Temkin models were used to analyze the sorption isotherm data of ion exchange of La(III) and Gd(III) on Mn–Ni nanoparticle. The best fit was obtained by the Langmuir model with high correlation coefficients (R2 = 0.995) with a maximum monolayer adsorption capacity of 8.81 mg/g.
KEY WORDS: Sorption isotherm, Kinetics models, Mn–Ni nano particle
Bull. Chem. Soc. Ethiop. 2024, 38(1), 255-267. DOI: https://dx.doi.org/10.4314/bcse.v38i1.19
Determination of calcium in water samples by using Au-electrode in HCl solution in the absence and presence of a crystal violet and environmental studies
Authors: Q. Hussien Safa , M.  El-Defrawy Mohamed , A. Gomaa Esam , G.  El-Ghalban Marwa 
Published: November 2023

The hydrochloric acid (HCl 0.1 M) supporting electrolyte was used in the electrochemical estimation cyclic voltammetry for CaCl2 concentrations also using crystal violet dye or (hexamethyl pararosaniline) as ligand. For oxidation and reduction waves, the potential range is 0.5 V, -0.5 V. The interaction of calcium ions with crystal violet was examined using several analytical estimates, and kinetic and thermodynamic parameters. The analytical concentration for calcium ions in different samples especially in Nile River were estimated in the range from 1.6 to 14.3 mmol. The estimation of calcium ion concentrations was achieved up to 11.49 mmol in waste water in Mansoura University. Applications were made for calcium estimation of different water samples and molecular docking of the calcium-crystal violet complex against the Hepatitis C viral proteins (4i33, 4KTC), roving strong bonds of interaction were observed. And anti-bacterial effect on calcium complex with crystal violet and face mask N-95 tissue.
KEY WORDS: Calcium ions, Thermodynamic properties, Solvation parameters, Nile water samples, Anti-bacterial, Molecular docking
Bull. Chem. Soc. Ethiop. 2024, 38(1), 43-54. DOI: https://dx.doi.org/10.4314/bcse.v38i1.4
Synthesis and characterization of hybrid nanocatalyst (AgNPs-Fe2O3) for catalytic remediation of hazardous 2,4-dinitrophenol
Authors: Sivakavinesan M. , Vanaja M. , Anto-Rishiba M. , Amutha E. , Annadurai G. , Mariselvam R. , Tahani Awad Alahmadi Tahani , Ali Alharbi Sulaiman , Tamilselvan G. 
Published: November 2023

Hybridized nanocatalysts (AgNPs-Fe2O3) were prepared with silver nitrate and ferric chloride in the presence of sodium borohydride. The synthesized nanocatalyst was calcined, milled, and sieved for further applications. The nanocatalyst was characterized using Fourier transform infrared spectroscopy (FTIR) for the identification of functional moieties involved in the synthesis of the nanocatalyst. The vibrations of Fe and Ag were found at 566, 790 and 892 cm-1. The crystalline nature of the nanocatalyst was determined using X-ray diffraction (XRD) studies. The diffraction peaks for Ag and Fe can be seen at 2θ values of 30.42, 44.36, 62.45, 42.24 and 53.25. The morphology and elemental analysis of nanocatalysts were studied using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDAX). The particles are found to be spherical in shape. The signal for Ag and Fe can be found at 3.0 keV and 0.7, 6.3, 7.0 keV, respectively. The synthesized nanocatalyst was employed in the remediation of 2,4-dinitrophenol. The AgNPs-Fe2O3 nanocatalyst completely reduced (97%) the 2,4-dinitrophenol to 2,4-diaminophenol within 24 h.
KEY WORDS: Nanocatalyst, Chemical precipitation, Impregnation methodology, Milling, Sieving, Remediation
Bull. Chem. Soc. Ethiop. 2024, 38(1), 113-121. DOI: https://dx.doi.org/10.4314/bcse.v38i1.9
Assessment of the liver biochemical status of carpenters occupationally exposed to wood dust in Enugu metropolis South-East Nigeria.
Authors: Obianyido Ozioma Ebere , Obianyido Hector Okechukwu , Okwuosa Chukwugozie Nwachukwu 
Published: November 2023

Liver disease has a global distribution and ranks as the twelfth leading cause of mortality. This cross-sectional study carried out between June and November 2021 aimed to assess the liver biochemical status of carpenters occupationally exposed to wood dust in Enugu metropolis South-east Nigeria. The Ethical Committee of the University of Nigeria Teaching Hospital in Enugu gave its approval. A total of one hundred and twenty-four (124) participants; sixty-two (62) carpenters (exposed) and sixty-two (62) age and sex-matched (males) control (unexposed) were recruited for this study. Study participants were chosen by simple random sampling. Spectrophotometric method was used to test participants’ blood samples for liver enzymes alanine transaminase (ALT), aspartate transaminase (AST) and alkaline phosphatase (ALP). A statistically significant increase (p<0.05) was observed in the liver biochemical enzymes of the carpenters (exposed) in comparison to the controls (unexposed). The carpenters do not use any form of personal protective equipment (90.32%) or have a good knowledge of any occupational risk (83.87%) they are exposed to. A statistically significant positive correlation (p<0.05) was observed between ALT, AST and ALP enzyme activity and the duration of exposure to wood dust (in years) of the exposed. This study suggests that occupational exposure to wood dust may cause metabolic changes in the Liver. Constant use of personal protective equipment when at work, personal hygiene and regular health check is recommended.
HUBUNGAN PENGETAHUAN DAN SIKAP PENDERITA TB PARU DENGAN KEPATUHAN MINUM OBAT ANTI TUBERKULOSIS DI PUSKESMAS RANTANG MEDAN
Authors: Tamba Darwin , Silalahi Detti , Togatorop Nurhayati Anjelita 
Published: November 2023

Tuberkulosis paru merupakan penyakit menular yang menjadi salah satu masalah kesehatan bagi masyarkat sepertiga penduduk dunia dengan kematian urutan ke 9 di seluruh dunia. Indonesia merupakan negara ke-2 dengan jumlah penderita TBC terbanyak di dunia. Sumatera utara menempati urutan ke-6 sebagai propinsi dengan kasus terbesar di Indonesia. Penelitian ini bertujuan untuk menganalisis hubungan pengetahuan dan sikap dengan kepatuhan minum obat pada pasien TB Paru di Puskesmas Rantang Medan. Jenis penelitian ini adalah penelitian survei analtik dengan metode pendekatan cross-sectional.. Sampel dalam penelitian ini adalah seluruh penderita TB Paru yang sedang melaksanakan pengobatan tahap lanjut dengan 30 orang sampel penelitian diambil dengan teknik accidental sampling. Hasil uji chi Square diperoleh nilai variable pengetahuan dengan kepatuhan pasien TB Paru yaitu dengan hasil p value 0,000 < 0,05 , dan variable sikap dengan kepatuhan pasien TB Paru yaitu dengan hasil p value 0,000 < 0,05. Kesimpulan bahwa ada hubungan pengetahuan dan sikap dengan kepatuhan minum obat. Semakin banyakpengetahuan dan sikap mengenai TB Paruakansemakin meningkatpula kepatuhan minum obat pasien TB Paru. Diupayakankepada responden supayadapat mengembangkanpengetahuan penularan TB Paru, aktif dalam pengobatan TB Paru dan mencegahTB Paru dengan menggunakan tissue dan masker saat batuk.Diharapkan Puskesmas Rantang Medan dapat melaksanakan program yang memberikan pendidikan kesehatan kepada pasien TB Paru.
HUBUNGAN KECEMASAN DENGAN INSOMNIA PADA LANSIA DI PUSAT PELAYANAN ORANG TUA SEJAHTERA (PPOS) GBKP SUKAMAKMUR SIBOLANGIT
Authors: Sitopu Selli Dosriani , Pakpahan Hetti Marlina , Wau Nisdarwati 
Published: November 2023

Lansia pada umumnya mudah mengalami gangguan mental yang disebabkan olehbeberapa faktor seperti kesepian, gangguanalam perasaan, dan perasaan khawatir yang tidak jelas.Lansia yang tinggal di Panti biasanya mengalami kecemasandisebabkan karenajauh dari keluarga sehingga mudah merasa kesepian. Salah satu dampak kecemasan yang dialami oleh lansia yaitu gangguan insomnia.Mereka sering terbangun pada malam hari, dan kesulitan memulai tidur kembali. Tujuan penelitian untuk menganalisis hubungan kecemasan dengan insomnia pada lansia di PPOS GBKP Sukamakmur Sibolangit. Jenis penelitian survey analitik dengan rancangan studi cross sectional. Populasi sebanyak 34 orang, dan sampel penelitian seluruh populasi (total sampling) 34 orang, dengan uji chi-square dengan tingkat kepercayaan α = 0,05. Hasil penelitian menunjukkan mayoritas lansia mengalami cemas sedang 24 orang (70,6%) dan insomnia sedang 20 orang (58,8%), hasil uji statistic menunjukkan ada hubungan kecemasan lansia dengan insomnia dengan nilai p-value = 0,000 (p<0,005). Lansia yang cemas, mengalami insomnia. Disarankan kepada lansia agar tetap optimis dalam menjalani kehidupan masa tua dan tidak perlu memikirkan banyak hal, rajin berdoa kepada Tuhan, dan sebaiknya tidak minum air putih banyak jika sudah selesai makan malam dan sebelum tidur dianjurkan untuk BAK terlebih dahulu. Kepada petugas kesehatan di PPOS agar memberikan kegiatan kepada lansia seperti menonton TV sebelum tidur, mendengarkan musik seperti lagu rohani, dan lain-lain agar dapat mempermudah lansia untuk memulai tidur. Dan kepada peneliti selanjutnya diharapkan dapat melakukan penelitian tentang terapi yang bisa digunakan lansia dalam mengatasi insomnia seperti pengaruh terapi musik terhadap kualitas tidur lansia.
ANALISA PERUBAHAN KADAR AIR TERHADAP PEMADATAN TANAH DI DAERAH BENDUNGAN LAU SIMEME KABUPATEN DELI SERDANG
Authors: Ashri Nur , Lumbanraja Rut Laras Sakti , Ginting Rahelina , Gultom Adventus 
Published: November 2023

Pada proses pemadatan terjadi perubahan volume tanah. Perubahan volume tanah pada permukaan tanah asli dapat diakibatkan oleh pemadatan tanah atau beban statis yang ada di atasnya. Salah satu penyebab naiknya volume tanah adalah dengan pemadatan yaitu upaya untuk menaikkan kadar air tanah optimum yaitu kadar air yang dapat mempermudah perkerjaan pemadatan. Derajat kepadatan optimum dipengaruhi oleh jenis tanah, berat satuan kering, kadar air sewaktu pemadatan serta energi dan jenis pemadatan yang dilakukan.
PERBANDINGAN PENGARUH PENGGUNAAN RAGI ROTI DAN RAGI TAPE PADA PROSES FERMENTASI BIOETANOL DARI BIJI BUAH DURIAN, NANGKA DAN MANGGA
Authors: Melinda Melinda , Atmono Atmono 
Published: November 2023

Pertumbuhan penduduk dan meningkatnya kebutuhan energi mengakibatkan ketersediaan energi menipis. Biomasa (biji buah - buahan) mulai dikembangkan sebagai bahan baku bioetanol untuk memproduksi energi alternatif sebagai pengganti energi fosil. Biji buah durian, mangga dan nangka merupakan limbah yang mempunyai kandungan karbohidrat tinggi sehingga berpotensi untuk digunakan sebagai bahan baku pembuatan bioetanol. 50 gram tepung biji buah dimasukan ke dalam 300 mL larutan H2SO4 2,5%. Hidrolisa dilakukan dengan pemanasan pada pH 2 – 3 selama 2 jam. Untuk larutan seeding dilakukan dengan menambahkan 2 gram ragi mauripan ke dalam 100 mL aquades yang mengandung 5 – 7 gram gula merah. Variabel yang diukur kadar bioetanol. Hasil penelitian menunjukkan bahwa konsentrasi bioetanol dari proses fermentasi menggunakan ragi roti mauripan adalah 2% (biji durian), 4% (biji nangka) dan 5% (biji mangga). Kadar bioetanol dari proses fermentasi menggunakan ragi tape yaitu, biji buah durian sebesar 3%, biji nangka 5% dan biji mangga 6%. Dapat disimpulkan bahwa penggunaan ragi tape memperlihatkan hasil yang lebih baik dari penggunaan ragi mauripan. Biji mangga menghasilkan kadar bioetanol yang lebih baik dari biji durian dan biji nangka.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI PRODUKSI KELAPA SAWIT (Elaeis guineensis Jacq.) DI AFDELING I KEBUN BAH BIRUNG ULU PT. PERKEBUNAN NUSANTARA IV
Authors: Ningsih Tuty , Abu Yazid  , Sukri Fu’adh  
Published: November 2023

Tanaman kelapa sawit merupakan komoditi ekspor Indonesia. Tingginya permintaan kelapa sawit menyebabkan ekpansi budidaya kelapa sawit ke dataran tinggi. Tujuan penelitian adalah menganalisis faktor-faktor yang mempengaruhi produksi kelapa sawit. Penelitian dilakukan di kebun Bah Birong Ulu PT. Perkebunan Nusantara IV dengan metode penelitian menggunakan regresi linier berganda dan data diolah menggunakan SPSS 20. Data yang digunakan dalam penelitian merupakan data time series (2014-2018) dengan variabel pengamatan yaitu produksi kelapa sawit, pupuk, umur tanaman, jumlah tenaga kerja dan menggunaan herbisida. Hasil penelitian menunjukkan bahwa (1) Secara serampak faktor pupuk, umur tanaman, tenaga kerja dan herbisida berpengaruh nyata terhadap produksi kelapa sawit dengan nilai f-hitung (310,535) > t-tabel (3,38) dengan nilai signifikansi 0,00 < α (0,05). (2)Secara parsial diperoleh bahwa (a) Faktor pupuk tidak berpengaruh nyata terhadap produksi kelapa sawit dengan nilai t-hitung (-2,418) < t-tabel (2,012) dengan nilai signifikansi 0,016 < α (0,05). (b) Faktor umur tanaman berpengaruh nyata terhadap produksi kelapa sawit dengan nilai t-hitung (8,843) > t-tabel (2,012) dengan nilai signifikansi 0,00 < α (0,05). (c) Faktor tenaga kerja berpengaruh nyata terhadap produksi kelapa sawit dengan nilai t-hitung (28,261) > t-tabel (2,012) dengan nilai signifikansi 0,00 < α (0,05). (d) Faktor herbisida tidak berpengaruh nyata terhadap produksi kelapa sawit dengan nilai t-hitung (1,592) < t-tabel (2,012) dengan nilai signifikansi 0,113 > α (0,05).
KAJIAN PEMUPUKAN KELAPA SAWIT (Elaeis guineensis Jacq) MENGGUNAKAN METODE SEMI MECHANICAL MANURING (SMM)
Authors: Siahaan Megawati , Wagino Wagino , Tarigan Lui Jemtanta 
Published: November 2023

Fertilizing is one of the important activities in palm oil cultivation which is high cost, because of that we must find ways to increase its effectivity and efficiency. Semi Mechanical Manuring (SMM) is a breakthrough in fertilizing which used in Kebun Bekiun, PT. Langkat Nusantara Kepong. This Research is held in Divisi III, Kebun Bekiun, PT. Langkat Nusantara Kepong. Qualitative Description is used as research method with describe procedure operation and administration of this method. This Research shows that Kebun Bekiun has done 5 principles in fertilizing which are kind, method, time, place and dosage has been exactly by field assistant, plantation manager and head of plantation. SMM is mini truck modified to increase efficiency and effectivity of fertilizing. SMM is designed to cross all tracks in oil palm plantations and process of fertilizing will be faster than manual application and easier to control the field. Price of fertilizer using SMM was Rp. 46/Kg cheaper than manual application. When the research was doing, this plantation needed to spread 6000 kg fertilize which were been broad to 107.989 palms with 2 kgs each palm; it means this plantation has efficiency Rp. 9.934.988,-/application. The efficiency come from the decrease of man power to spread the fertilize.
PENGARUH DOSIS BAHAN ORGANIK DAN AIR PAYAU DARI BEBERAPA TITIK PENGAMBILAN TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT PRE NURSERY
Authors: Silalahi Beni Anggia , Rohmiyati Sri Manu , Noviana Githa 
Published: November 2023

Penelitian dengan tujuan untuk mengetahui pengaruh dosis bahan organik dan air payau pada beberapa titik pengambilan terhadap pertumbuhan bibit kelapa sawit di pre nursery pada tanah pasir pantai yang telah dilaksanakan di kebun pendidikan dan penelitian (KP-2) Instiper Yogyakarta yang terletak di Desa Maguwoharjo, Kec. Depok, Kab. Sleman, Yogyakarta, pada bulan Desember sampai Maret 2023. Penelitian ini merupakan percobaan faktorial yang disusun dalam Rancangan Acak Lengkap (RAL) yang terdiri dari dua faktor. Faktor pertama adalah dosis pupuk kandang yang terdiri dari 4 aras dosis %volume, atau perbandingan tanah dan bahan organik, yaitu: 0% , 25% (3 : 1), 33% (2 : 1), dan 50% (1:1). Faktor kedua adalah penyiraman air payau dengan jarak dari muara titik pengambilan yang terdiri dari 3 titik yaitu 500m dari muara, 750 m, 1000 m. Data penelitian dianalisis dengan Annova (variance), perlakuan diuji lanjut dengan jarak Duncan (DMRT) sebesar 5%. Hasil analisis menunjukkan bahwa kombinasi kotak bahan organik dan air payau yang baik pada beberapa titik pengambilan tidak mempengaruhi pertumbuhan bibit kelapa sawit pada pre nursery. Dosis pupuk organik 0, 25, 33 dan 50% volume memberikan interaksi yang sama terhadap pertumbuhan bibit. Pengairan dengan air payau dari beberapa titik pengumpulan yaitu 500 m, 750 m dan 1000 m dari muara memberikan pengaruh yang sama pada pertumbuhan bibit kelapa sawit pre nursery.
OS DESAFIOS NO AMBIENTE ESCOLAR E A IMPORTÂNCIA DA GESTÃO NO CUIDADO DE DISCENTES COM TDAH
Authors: Alves Guimarães Ueudison , Mayre da Silva Fabianny , Cardoso de Andrade França Cristiane , Muniz Silva Silbthy , Cristina Sales Claudia , Sarmento Ferreira Railyce 
Published: November 2023

Este artigo apresenta como temática norteadora de sua edificação “Os desafios no ambiente escolar e a importância da gestão no cuidado com discentes com TDAH”, mostrando tal transtorno como uma qualidade de cunho neurobiológico que alcança de 3% a 7% dos indivíduos. Neste artigo será exibido um estudo bibliográfico, elaborado por meio de uma pesquisa teórica, com desígnio de compreender um pouco mais acerca do desempenho das crianças com TDAH em suas salas de aula e a importância do trabalho da gestão neste momento. Durante a edificação deste artigo foram elencadas as propriedades do TDAH (transtorno de Déficit de Atenção e Hiperatividade) como por exemplo, a hiperatividade, a falta de atenção e a impulsividade, que podem atrapalhar o desempenho escolar, familiar e ainda o social. Desta forma, todos os resultados adquiridos por meio da edificação deste artigo mostram que o estudo indicado contribuirá para o gestor avaliar os decisivos pontos que norteiam as dificuldades ligadas ao desempenho escolar de estudantes com TDAH, orientando-o na procura por parcerias com profissionais de outras áreas. Vendo o papel do gestor, do educador e da família como ferramenta capital de apoio ao portador de TDAH, a escola realizará o seu trabalho contribuindo com a sua rotina, com a organização e atividades escolares que sejam construídas, tendo em vista as dificuldades enfrentadas pelos alunos com TDAH.
Cenobamate (Xcopri)
Authors: CADTH  
Published: November 2023

CADTH reimbursement reviews are comprehensive assessments of the clinical effectiveness and cost-effectiveness, as well as patient and clinician perspectives, of a drug or drug class.
The assessments inform non-binding recommendations that help guide the reimbursement decisions of Canada's federal, provincial, and territorial governments, with the exception of Quebec.
This review assesses cenobamate (Xcopri), 12.5 mg, 25 mg, 50 mg, 100 mg, 150 mg, 200 mg tablet, oral.
Indication: As adjunctive therapy in the management of partial onset seizures in adults with epilepsy who are not satisfactorily controlled with conventional therapy.
Phytochemical Analysis of Flavonoids and Tannins from Ethanol Extract of Keji Beling (Strobilanthes crispus) Using UV-Vis Spectrophotometry Method
Authors: Safitri Ayu , Wahlanto Panji 
Published: November 2023

Keji Beling (Strobilanthes crispus BI.) is a plant that has been used by the community as a traditional medicine for kidney stones, diabetes mellitus, ulcers and as a laxative. Keji beling contains many beneficial substances such as flafonoids and tannins. This research aims to determine the content of flavonoid and tannin phytochemical compounds and to determine length Maximum waves in flavonoid and tannin compounds in keji beling leaf extract (Strobilanthes crispus BI.). Keji beling leaves were extracted using the maceration method with 70% ethanol solvent. Secondary metabolite content was identified qualitatively using a phytochemical screening test. Flavonoids were tested with concentrated MgSO4 and HCl reagents and tannins were tested with FeCl3 reagent. Qualitative analysis using the UV-Vis Spectrophotometry method. Results Research shows that the phytochemical screening test on keji beling leaf extract (Strobilanthes crispus BI.) is positive for containing flavonoids and tannins, indicated by a color change in the phytochemical screening test. Qualitative analysis results appear at a maximum wavelength of 465 nm for flavonoids, and for tannin compounds at a maximum wavelength of 765 nm.