Garuda - Garba Rujukan Digital

EKSTRAK METANOL DARI DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI INHIBITOR KOROSI BAJA DALAM ASAM KLORIDA Rahmi, Azimatur; -, Emriadi; Alif, Admin
Jurnal Riset Kimia Vol 7, No 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.168

Vol 7 No 2ABSTRACTExtract of Phaleria macrocarpa leaves have been studied as corrosion inhibitor for mild steel ofhydrochloric acid solution 2.0 N. The efficiency of inhibition was evaluated by gasometric methodand electrochemical analysis. The temperature and concentration effects on the inhibitorsperformance were also investigated. The result obtained showed that the extract is one of promisingcandidate as an inhibitors for the corrotions of mild steel in HCl media, inhibition efficiencyincrease as the extract concentration is evaluated. The activation energy (Ea) increase with theaddition of the extract. Where inhibition of extract on the steel surface obey modified Langmuirisotherm equation. Potentiodynamic polarization curve indicated the Phaleria macrocarpa leavesextract play role as the anodic type inhibitor.Keywords : Corrosion inhibition, mild steel, Phaleria macrocarpa, hydrochloric acid.

PEMBELAJARAN SENI TARI TRADISIONAL MINANG KABAU PADA ANAK USIA DINI SEBAGAI PENERUS BANGSA Rahmi, Azimatur; Mayar, Farida
Jurnal Pendidikan Tambusai Vol. 3 No. 3 (2019): December 2019
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Pembelajaran sebagai proses pembentukan pribadi, pemebelajaran diartikan sebagai suatu kegiatan yang membentuknya kepribadian peserta didik. pembelajaran agar peserta didik secara aktif mengembangkan potensi dirinya untuk memiliki kekuatan spritual keagamaan, pengendalian diri, kepribadian, kecerdasan, akhlak mulia, serta keterampilan yang diperlukan dirinya,dalam masyarakat, bangsa dan negara. Seni tari tradisional sangat identik dengan kearifan budaya lokal. Seni taritradisimerepresentasikan kehidupan masyarakat lokal yang ditopang oleh keluhuran budi yang arif, bijaksana, keteladanan, dan cendekia serta sangat identik dengan kearifan budaya lokal. Melalui eksistensi pertunjukannya, seni tradisi merepresentasikan kehidupan masyarakat lokal yang ditopang oleh keluhuran budi yang arif, bijaksana, keteladanan, dan cendekia. Maka pentingnya pembelajaran seni tari tradisional untuk memperkenalkan budaya pada anak usia dini sebagai penerus bangsa.

Uji Aktivitas Antioksidan dan Fenolik Total Fraksi Etil Asetat Daun Sembung (Blumea balsamifera (L.) DC) Rahmi, Azimatur; Afriani, Tika; Hevira, Linda; Widiawati, Wike
Jurnal Riset Kimia Vol 12, No 2 (2021): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v12i2.383

The aim of this study is to investigate antioxidant activity and total phenolic content of ethyl acetate fraction of Sembung leaves. SembungÂ (Blumea balsamifera L.) is a plant that has the potential as an antioxidant because it contains secondary metabolites of alkaloids, steroids, flavonoids, saponins, and phenolic compounds. In this study, antioxidant activity was tested by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) for free radical scavenging activity assay. Evaluation of total phenolic content was tested by using the Folin-Ciocalteau method. The results showed that the ethyl acetate fraction of Sembung leaves possess showed medium antioxidant activity with IC50 valueof 221.821 compare with reference standard ascorbic acid with IC50 value 68.25 ppm. The ethyl acetate fraction of Sembung leaves has a total phenolic content of 161.101 mg GAE/g. This study provided that Blumea balsamifera leaves possess antioxidant.

EKSTRAK METANOL DARI DAUN MAHKOTA DEWA (Phaleria macrocarpa) SEBAGAI INHIBITOR KOROSI BAJA DALAM ASAM KLORIDA Azimatur Rahmi; Emriadi -; Admin Alif
Jurnal Riset Kimia Vol. 7 No. 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.168

Vol 7 No 2ABSTRACTExtract of Phaleria macrocarpa leaves have been studied as corrosion inhibitor for mild steel ofhydrochloric acid solution 2.0 N. The efficiency of inhibition was evaluated by gasometric methodand electrochemical analysis. The temperature and concentration effects on the inhibitorsperformance were also investigated. The result obtained showed that the extract is one of promisingcandidate as an inhibitors for the corrotions of mild steel in HCl media, inhibition efficiencyincrease as the extract concentration is evaluated. The activation energy (Ea) increase with theaddition of the extract. Where inhibition of extract on the steel surface obey modified Langmuirisotherm equation. Potentiodynamic polarization curve indicated the Phaleria macrocarpa leavesextract play role as the anodic type inhibitor.Keywords : Corrosion inhibition, mild steel, Phaleria macrocarpa, hydrochloric acid.

Pendampingan Peningkatan Pengetahuan Anak Dengan Penyuluhan Prilaku Hidup Bersih dan Sehat Pada Masa Pandemi Covid-19 Di Taman Kanak-kanak Rahmi, Azimatur; Anggraini, Dwiyani
Jurnal Pendidikan Tambusai Vol. 6 No. 1 (2022): 2022
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v6i1.3297

Pengabdian ini dilatar belakang oleh adanya pandemi covid-19, sehingga penerapan perilaku hidup bersih dan sehat sangat perlu untuk dilaksanakan. Berdasarkan keadaan tersebut munculah permasalahan yang mana dengan adanya pandemic covid -19. Dalam pembelajaran anak usia dini khususnya pada lingkungan PAUD diadakan pembelajaran secara pershift, pagi dan siang dengan tujuan mengurangi interaksi antar siswa serta memutuskan rantai virus corona tersebut. Dengan begitu setiap siswa dianjurkan untuk memakai masker, menjaga jarak dan mencuci tangan. Pengabdian ini bertujuan untuk memberikan pemahaman terkait perilaku hidup bersih dan sehat serta memberikan pendampingan kepada anak mengenai tata cara hidup bersih. Tahapan kegiatan pelaksanaan pengabdian masyarakat meliputi: 1) Perencanaan, 2) Pendidikan dan Pendampingan, 3) Evaluasi. Hasil yang diperoleh dari kegiatan diantaranya: 1) Anak memiliki wawasan tentang bahaya pandemic covid-19, 2) anak dapat mengetahui pencegahan bahaya pandemic covid-19, 3) Anak dapat menerapkan prilaku hidup bersih dan sehat.

Isolation and Antibacterial Activity of Sembung (Blumea balsamifera) Leaf Essential Oil L., DC Afriani, Tika; Rahmi, Azimatur; Sari, Mia Darmita
Biology, Medicine, & Natural Product Chemistry Vol 13, No 2 (2024)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2024.132.361-365

Sembung leaf essential oil is a complex mixture in the form of oily yellow liquid with a unique aroma. It contains various volatile components that have antibacterial, antifungal, antioxidant and cytotoxic activities. This study aims to determine the antibacterial activity of essential oil Blumea balsamifera L., DC against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. Isolation of essential oil using steam distillation method with 0.21% rendement. Inhibition activity was performed by test tube method with variation concentrations of essential oil were 10%, 20%, 40%, 80%, and 100% for each bacteria. Results of this study showed that the highest antibacterial activity on Escherichia coli at 80% concentration with an inhibition zone diameter of 27.53 mm, 100% concentration for Pseudomonas aeruginosa with an inhibition zone diameter 25.72 mm and 100% concentration for Staphylococcus aureus with inhibition zone diameter 27.31 mm. Essential oil from (Blumea balsamifera) L., DC leaves have a strong activity inhibition category against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus.

Antioxidant Activity Test (DPPH) and Cytotoxicity of Jengkol Peel Ethanol Extract (Pithecellobium jiringa) on Shrimp Larvae (Artemia salina Leach) Wibowo, Glen Arya; Afriani, Tika; Rahmi, Azimatur
Biology, Medicine, & Natural Product Chemistry Vol 12, No 2 (2023)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2023.122.533-537

This study aims to determine the antioxidant and cytotoxic activity of the ethanol extract of jengkol peel (Pithecellobium jiringa). Jengkol peel ethanol extract (Pithecellobium jiringa) was obtained by maceration using 70% ethanol as a solvent. In the phytochemical screening test it was found that chemical compounds contained in jengkol peel (Pithecellobium jiringa) including alkaloids, flavonoids, and saponins. The antioxidant activity of the ethanol extract was tested using the 35 ppm DPPH method. The test results on the ethanol extract showed moderate antioxidant activity with an IC50 value of 209.45 Âµg/mL. The cytotoxic activity of the ethanol extract was tested by the BSLT method using shrimp larvae (Artemia salina L.). The results showed that the ethanol extract of jengkol peel (Pithecellobium jiringa) has cytotoxic activity with LC50 value minimum of 17.875 mg/L and LC50 a maximum of 360.714 mg/L with an average of 180.136 mg/L.

Aktivitas Antioksidan Nanopartikel dari Ekstrak Daun Sembung (Blumea balsamifera L.): Antioxidant Activity of Nanoparticle Modified from Sembung Leaf (Blumea balsamifera L.) Extract Saufani, Iza Ayu; Rahmi, Azimatur; Afriani, Tika; Zikirzi, Widi Urdatullah
Amerta Nutrition Vol. 8 No. 3SP (2024): AMERTA NUTRITION SUPPLEMENTARY EDITION Special 4th Amerta Nutrition Conferenc
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/amnt.v8i3SP.2024.362-371

Background: Dietary antioxidants are essential to prevent free radical-induced cell damage and maintain the body’s physiological functions. Sembung leaves are rich in polyphenols, which are known to have substantial antioxidant activities. The antioxidant efficacy of Sembung leaves can be enhanced by nanoparticle size. Objectives: To examine the enhancement of antioxidant activity of Sembung leaf (Blumea balsamifera L.) extract modified into nanoparticles. Methods: The extract used was an ethyl acetate fraction extract. The fresh leaves of Sembung ware macerated in 96% ethanol for 24 hours. Ethanol, n-hexan, and ethyl acetate solvents were used to fractionate the ethanolic extract. The extract of the ethyl acetate fraction was modified into nanoparticles through the ionic gelation method. The nanoparticles comprised three formulations, F1 (0.25% chitosan and 10 ml NaTPP solution), F2 (0.50% chitosan and 20 ml NaTPP solution), and F3 (0.75% chitosan and 30 ml NaTPP solution). The antioxidant activity was assessed by lipid peroxidation using ferric thiocyanate (FTC) followed by the thiobarbiturat (TBA) method. A Spectrophotometer UV-Vis was used to analyse the % inhibition values of the samples. Results: The antioxidant activity assay on the sample of ethyl acetate fraction using the FTC method showed 31.25% inhibition, and using the TBA method indicated 17.34% inhibition. Meanwhile, the % inhibition was 23.77% and 40.43% in the nanoparticle sample with the FTC and TBA methods, respectively. Conclusions: This study revealed that nanoparticles of Sembung leaves can increase antioxidant activities. These findings offer potential applications in the development of existing antioxidant products.

Sosialisasi Lingkungan Bersih serta Pengelolaan Instalasi Pengolahan Air Limbah (IPAL) di Desa Muara Angke Minandre Wiratama; Gunaryo; Mentari Zikri Anty; Mirad Fahri; Anggi Khairina H H; Elva Stiawan; Rahmat Basuki; M. Sulthon Nurharmansyah P; Tedi Kurniadi; Dewi Anggraini S; Yusuf Bramastya A; Azimatur Rahmi; Aura Puja Lestari; Moch. Rizki Fajri
Babakti: Journal of Community Engangement Vol. 2 No. 1 (2025): April
Publisher : Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/babakti.v2i1.155

Kesadaran Kebersihan dan Pengelolaan Sampah yang baik merupakan salah satu kebiasaan yang dapat berdampak pada kesehatan yang lebih baik. Kepedulian yang minim dalam menjaga lingkungan yang bersih diprediksi akan menimbulkan dampak buruk bagi lingkungan dan masyarakat. Selain itu, pengelolaan air bersih pada lingkungan merupakan salah satu hal yang perlu diperhatikan. Pengetahuan tentang pengolahan air bersih melalui Instalasi Pengelolaan Air Limbah (IPAL) akan memberikan dampak positif bagi keberlansungan air bersih di lingkungan masyarakat. Pengabdian kepada masyarakat ini dilakukan dengan Sosialisasi melalui pendekatan modal sosial. Pendekatan modal sosial dilakukan dalam pelaksanaan pengabdian kepada masyarakat dimana pendekatan ini digunakan sebagai wadah sosialisasi menjaga kebersihan lingkungan dan pengetahuan dalam pengolahan air bersih bagi msayarakat di Desa Muara Angke. Pengabdian kepada Masyarakat ini bertujuan untuk mensosialisasikan cara mengelola dan mengkategorikan macam-macam sampah, pengelolaan air bersih, dan desalinasi air yang dilakukan di daerah Muara Angke, Kecamatan Penjaringan, Jakarta Utara. Data dikumpulkan melalui observasi langsung dan kuesioner yang diisi oleh peserta sebelum dan sesudah program pelatihan. Hasil analisis menunjukkan bahwa kesadaran masyarakat meningkat yang dilihat dari hasil tes yang dilakukan menunjukkan peningkatan nilai dari materi yang di ujikan. Pendekatan yang tepat berhasil membangkitkan semangat dan komitmen warga yang tercermin dari tingginya tingkat partisipasi. Pelaksanaan kegiatan ini diharapkan memberikan pengetahuan dan kesadaran masyarakat dalam menjaga kebersihan lingkungan dan pengolahan air bersih.

Durian Seed Flour (Durio zibethinus Murr) as an Alternative Medium for Fungal Growth Afriani, Tika; Rahmi, Azimatur; Ramadhani, Putri Agiel; Rahmadaniah, Rahmadaniah
Biology, Medicine, & Natural Product Chemistry Vol 14, No 1 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.141.435-441

This study aimed to evaluate the potential of durian seed flour (Durio zibethinus Murr) as an alternative medium for the growth of Candida albicans and Aspergillus niger. The bleaching process utilized sodium metabisulfite at varying concentrations (600 ppm, 800 ppm, 1000 ppm) and immersion durations (15, 20, 25 minutes). The bleached samples were dried at 70â„ƒ for 3 hours. Durian seed flour media were formulated into three variants and compared with Potato Dextrose Agar (PDA) as the control medium. The activity test for Candida albicans used the pour plate method with incubation for 48 hours at 37â„ƒ, while Aspergillus niger was tested using the agar block method and incubated for 72 hours under the same conditions. Immersion duration significantly affected the flour's color, with longer durations producing whiter flour. Higher drying temperatures enhanced water evaporation efficiency, resulting in an average moisture content of 10.56%, compliant with national standards. The best medium formulation was F1 (10 g durian seed flour, 2 g sugar, 1.5 g agar, 0.25 g micronutrients, 100 mL distilled water), yielding 3.6 Ã— 10â· CFU/mL of Candida albicans colonies and an Aspergillus niger growth diameter of 28.5 mm after 72 hours of incubation. However, sporulation of Aspergillus niger was better on PDA media. Durian seed flour shows potential as an alternative fungal growth medium.

Title

Found 15 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 15 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 15 Documents
Search