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All Journal PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman Science and Technology Indonesia JURNAL ATOMIK Jurnal Ilmiah Sains Jurnal Abdimas Mahakam
Rita Hairani
Jurusan Kimia FMIPA Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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AKTIVITAS ANTIBAKTERI BUNGA KERTAS (Bougainvillea glabra): REVIEW ARTIKEL Supratman, Rafif Ghanaifalah Dely; Hairani, Rita; Ruga, Ritbey
PROSIDING SEMINAR KIMIA Vol 3 No 2 (2025): Prosiding SNKT 2024
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Herbal or medicinal plants contain many diverse phytochemical compounds and provide various biological effects. One of them is Bougainvillea glabra which is often used in traditional medicine in various countries due to the plant has bioactive compounds, one of which is antibacterial. This study aims to determine the antibacterial activity of Bougainvillea glabra. The methodology used was a literature study using several scientific articles about antibacterial activity published in the last ten years and published in national and international scientific journals as library sources through searches on Google Scholar site. The results showed that Bougainvillea glabra had inhibitory activity against the bacteria Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Bacillus cereus, but it had not inhibitory activity against the bacteria Listeria monocytogenes and Salmonella sp. Keywords : Bougainvillea glabra, bioactive, antibacterial
The Utilization of Chitosan from Maggot (Hermetia illucens) Exuvia as Edible Coating for Tomatoes (Lycopersicon esculentum) and Edible Film with the Addition of Honey as an Antibacterial Agent Daniel; Sitorus, Saibun; Pasaribu, Subur P.; Marliana, Eva; Hairani, Rita; Ruga, Ritbey; Purba, Ritson; Saleh, Chairul; Pratiwi, Djihan Ryn; Magdaleni, Agustina Rahayu; Masmur, Indra; Masmur, Hestina
Science and Technology Indonesia Vol. 10 No. 4 (2025): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.4.1232-1241

Abstract

The use of chitosan from maggot (Hermetia illucens) exuvia as an edible coating for tomatoes (Lycopersicon esculentum) and an edible film with honey added as an antibacterial agent was investigated. This study aimed to determine the yield of chitosan from black soldier fly (BSF, Hermetia illucens) maggot exuviae as an edible coating. The chitosan was produced from chitin by deacetylation, and its effect on the weight loss and vitamin C levels of tomatoes for 7 days after treatment was investigated. The chitosan coating was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy. The antibacterial activity was evaluated using a disk diffusion method. The result showed that by deacetylation, conversion of chitin produced chitosan with a yield of 72% and a deacetylation degree of 75.05%. The chitosan coating significantly affected the weight loss of tomatoes, with the best concentration being 2%. However, the treatment did not significantly affect the decrease in vitamin C levels. The edible chitosan film from BSF maggot exuviae with added honey had a thickness, water content, and water vapor transmission rate of 0.156 mm, 16.9913%, and 30.45 g/m2/24 hours, respectively. SEM characterization showed a relatively dense surface structure, which was slightly smooth and porous. Regarding antibacterial activity, the edible chitosan film inhibited Staphylococcus aureus with an inhibition zone of 10.37 mm; however, Escherichia coli was not inhibited. These results suggest that chitosan from BSF maggot exuviae has potential as an effective edible coating for reducing weight loss in tomatoes despite showing limited antibacterial properties.
Pharmacological Potential of the Stem of Butterfly Root Plant (Phanera semibifida Roxb. var. semibifida): A Phytochemical, Toxicity, and Anti-Inflammatory Activity Study Ayu Mellyanti; Rita Hairani; Erwin Erwin; Winni Astuti; Medi Hendra; Eva Marliana
Jurnal Ilmiah Sains Volume 25 Issue 2, October 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jis.v25i2.62442

Abstract

Phanera semibifida Roxb. var. semibifida, commonly known as the butterfly root plant, is one of the plants frequently used by various indigenous tribes in Kalimantan as a traditional medicinal plant. This study was conducted to identify the secondary metabolite compounds, toxicity level, and anti-inflammatory activity of the plant. Extraction of the stem of the butterfly root plant was carried out using the maceration method with methanol as the solvent, followed by partitioning with n-hexane and ethyl acetate. Phytochemical screening of the stem was performed using Thin Layer Chromatography (TLC). Toxicity testing was conducted using the Brine Shrimp Lethality Test (BSLT), and anti-inflammatory activity was evaluated based on protein denaturation inhibition in vitro using a ultraviolet-visible (UV-Vis) spectrophotometer. The crude extract of the stem was found to contain alkaloids, triterpenoids, steroids, flavonoids, and phenolics; the n-hexane fraction contained triterpenoids and steroids; the ethyl acetate fraction contained alkaloids, triterpenoids, steroids, flavonoids, and phenolics, while the aqueous fraction contained alkaloids, flavonoids, and phenolics. The toxicity levels (LC₅₀) of the crude extract, n-hexane fraction, ethyl acetate fraction, and aqueous fraction were 57.45; 158.04; 42.34; and 72.88 µg/mL, respectively, indicating toxic activity against Artemia salina L. larvae. The anti-inflammatory activity levels (IC₅₀) of the crude extract, n-hexane fraction, ethyl acetate fraction, and aqueous fraction were 124.95 µg/mL (moderate category); 161.27 µg/mL (moderate category); 99.15 µg/mL (strong category); and 143.44 µg/mL (moderate category), respectively. These results indicate that the stem of the butterfly root plant (Phanera semibifida Roxb. var. semibifida) contains bioactive compounds and has potential as a natural anti-inflammatory agent.
The Potential oOf Butterfly Root Plant (Phanera semibifida Roxb. var. semibifida) Stem as a Source of Antioxidants and Natural Sunscreen Agent T, Nurnaningsi; Hairani, Rita; Saleh, Chairul; Ruga, Ritbey; Marliana, Eva; Hendra, Medi
JURNAL KIMIA MULAWARMAN Vol 23 No 1 (2025)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jkm.v23i1.1559

Abstract

Phanera semibifida Roxb. var. semibifida merupakan tanaman liana yang berasal dari famili Leguminosae. Tanaman ini umum digunakan sebagai tanaman obat oleh berbagai suku bangsa di Kalimantan. Penelitian ini bertujuan untuk mengidentifikasi metabolit sekunder menggunakan metode kromatografi lapis tipis (KLT), mengevaluasi aktivitas antioksidan menggunakan metode DPPH (2,2-difenil-1-pikrilhidrazil), dan menilai potensi tabir surya secara in vitro menggunakan spektrofotometer UV-Vis. Uji fitokimia menunjukkan bahwa baik ekstrak metanol kasar maupun fraksi etil asetat mengandung alkaloid, steroid, triterpenoid, fenolik, dan flavonoid. Fraksi n-heksana mengandung steroid dan triterpenoid. Fraksi air mengandung alkaloid, fenolik, dan flavonoid. Aktivitas antioksidan diamati dalam ekstrak metanol kasar, n-heksana, etil asetat, dan fraksi air dengan nilai IC₅₀ masing-masing 19,51; 105,08; 16,99 dan 137,30 mg/L. Aktivitas tabir surya ditentukan berdasarkan nilai SPF pada konsentrasi 25, 50, 100, 150, 200, dan 250 mg/L untuk ekstrak kasar, fraksi n-heksana, etil asetat, dan air, yang masing-masing berkisar antara 0,52–6,55, 0,63–6,91, 1,51–17,93, dan 0,23–3,01. Hasil ini menunjukkan potensi Phanera semibifida Roxb. var. semibifida sebagai kandidat alami dengan aktivitas antioksidan dan sifat pelindung matahari.
Strategi Peningkatan Kualitas Pembelajaran Kimia bagi Siswa SMA Negeri 1 Muara Badak melalui Praktikum Kimia Rita Hairani; Soerja Koesnarpadi; Teguh Wirawan; Ritbey Ruga; Tri Edi Ersanto
Jurnal Abdimas Mahakam Vol. 8 No. 02 (2024): Juli
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24903/jam.v8i02.2595

Abstract

Tersedianya sarana dan prasarana di tingkat sekolah menengah atas (SMA) untuk melaksanakan praktikum kimia berupa laboratorium serta alat dan bahan praktikum kimia sangatlah penting terhadap peningkatan kualitas pembelajaran bagi siswa. SMA Negeri 1 Muara Badak merupakan salah satu SMA yang berada di kecamatan Muara Badak Kalimantan Timur dan memiliki sarana laboratorium untuk melakukan praktikum. Namun kegiatan praktikum kimia terkendala untuk rutin dilaksanakan yang dikarenakan kurang memadainya alat dan bahan praktikum di sekolah tersebut. Sehubungan dengan kendala yang dihadapi dan sebagai upaya implementasi salah satu poin Tri Dharma Perguruan Tinggi, yaitu pengabdian kepada masyarakat, maka tim dosen Jurusan Kimia FMIPA Universitas Mulawarman pada 5 Juni 2023 berinisiatif untuk melakukan pendampingan praktikum kimia dan juga menyediakan alat dan bahan praktikum kimia yang dapat dilaksanakan di sekolah tersebut. Kegiatan ini juga diparalelkan dengan penyampaian materi mengenai keselamatan dan kesehatan kerja (K3) di laboratorium oleh pihak PT. Global Environment Laboratory (PT. GEL) Samarinda yang merupakan mitra kerjasama. Pada kegiatan ini, pengumpulan data menggunakan instrument berupa angket pre-test dan post-test yang disebarkan ke 30 siswa SMA Negeri 1 Muara Badak. Hasil analisis terhadap jawaban angket pre-test menunjukkan bahwa sekitar 71% siswa setuju bahwa kimia adalah subjek yang menarik dan 72% siswa setuju bahwa kimia berguna untuk memahami fenomena sehari-hari. Selanjutnya, berdasarkan analisis data angket post-test menunjukkan bahwa sebagian besar siswa setuju dengan uraian yang dijabarkan di angket. Secara keseluruhan hasil analisis angket-angket tersebut menunjukkan bahwa kegiatan yang telah dilakukan memiliki dampak yang cukup baik bagi siswa SMA Negeri 1 Muara Badak dalam hal motivasi belajar terhadap pembelajaran kimia melalui metode praktikum.
Co-Authors Alawiyah, Dessy Noor Aman Sentosa Panggabean Ayu Mellyanti Daniel Djihan Ryn Pratiwi, Djihan Ryn Ersanto, Tri Edi Erwin Erwin Erwin Erwin Eva Marliana Eva Marliana, Eva Indra Masmur Jonathan Jonathan Magdaleni, Agustina Rahayu Masmur, Hestina Matutu, Deni Ari Medi Hendra Medi Hendra, Medi Nurbah, Sahriana Putri Nurul Jannah Puspitasari, Intan Dessy Ramadhan, Aulia Rika anggraini Ritbey Ruga Ritson Purba, Ritson Ruga, Ritbey Saibun Sitorus Saleh, Chairul Sjarif Ismail Soerja Koesnarpadi Subur P Pasaribu Supratman, Rafif Ghanaifalah Dely Swandari Paramita T, Nurnaningsi Teguh Wirawan Teguh Wirawan, Teguh Tri Edi Ersanto Wardani, M. Rizky Winni Astuti Winni Astuti, Winni Yuwinda Cindy Elisabet Panggabean