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Parbuntari, Hesty
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Pengaruh Metode Ekstraksi Maceration Vortex Technique Terhadap Aktivitas Antibakteri dari Daun Gedi (Abelmoschus manihot L.) Febri Perdana, Keke; Parbuntari, Hesty
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Abelmoschus manihot L merupakan salah satu tanaman obat tradisional  yang mengandung senyawa bioaktif seperti alkaloid, flavonoid, steroid, serta fenolik yang memiliki aktivitas biologis sebagai antibakteri, antioksidan, efek anti-inflamasi, efek antidiabetes, dan efek analgesik. Tujuan penelitian ini adalah untuk mengetahui pengaruh metode ekstraksi Maceration Vortex Technique terhadap uji aktivitas antibakteri. Metode Maceration Vortex Technique dilakukan dengan teknik maserasi selama 2 jam yang diikuti dengan vortex selama 5 menit. Ekstrak dari daun gedi dapat bersifat sebagai antibakteri terhadap Staphylococcus aureus dan Escherichia coli. Hasil uji aktivitas antibakteri diketahui memilki diameter zona hambat bakteri Staphylococcus aureus yang lebih besar dibandingkan dengan zona hambat pada bakteri Escherichia coli.
Utilization Analysis of the Ethyl Acetate Fraction of Cumin Leaves (Plectranthus amboinicus) as an Antimicrobial against Staphylococcus aureus using LC-MS Martha, Rahma Diyan; Fajri, Ayu Insa; Danar, Danar; Kholifah, Siti Nurriyatul; Parbuntari, Hesty
Stannum : Jurnal Sains dan Terapan Kimia Vol 6 No 2 (2024): October 2024
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v6i2.4528

Abstract

The research investigates the antibacterial potential of cumin leaves due to their rich composition of flavonoid compounds, alkaloids, saponins, and tannins. The study's objectives encompass assessing the antibacterial efficacy of cumin leaf's ethyl acetate fraction against Staphylococcus aureus bacteria, identifying the concentration of this fraction yielding the most substantial inhibition zone, and characterizing the compound composition within the fractionated cumin leaf extract. Extraction involved maceration using 96% ethanol and fractionation through water, n-hexane, and ethyl acetate solvents. The ethyl acetate fraction's phytochemical screening affirmed the presence of flavonoids, alkaloids, saponins, and tannins. Liquid chromatography-mass spectrometer (LC-MS) analysis pinpointed the top two peaks as flavonoid compounds. Antibacterial assessments, executed via paper disc diffusion method, employed concentrations of 15%, 20%, and 25% of the ethyl acetate cumin leaf extract against Staphylococcus aureus, each repeated thrice. The 20% concentration exhibited the most substantial inhibition zone, averaging 23.1mm, compared to 16.8mm for 15% and 19.6mm for 25%, indicating its optimal efficacy against S. aureus growth. Statistical analysis employing ANOVA testing underscored the significance of the ethyl acetate cumin leaf fraction's concentration variations on S. aureus, as evidenced by a p-value of 0.00 (below the significance threshold of 0.05). This underscores the impact of the ethyl acetate cumin leaf fraction's concentrations on inhibiting S. aureus growth. The findings shed light on the potential of cumin leaves as a source of antimicrobial agents, with the 20% ethyl acetate fraction exhibiting notable effectiveness, opening avenues for further exploration and applications in antibacterial research.
Efektivitas E-LKPD dalam Liveworksheets berbasis Problem Based Learning pada Materi Hukum Dasar Kimia terhadap Kemampuan Pemecahan Masalah Peserta Didik Fase E Illahi, Annisa Ridho; Parbuntari, Hesty
ALSYS Vol 5 No 4 (2025): JULI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/alsys.v5i4.6561

Abstract

Problem-solving ability is a crucial skill that must be developed to help students navigate increasingly complex challenges. This study aims to determine the effectiveness of using e-LKPD in Liveworksheets integrated with problem-based learning on the topic of basic chemical laws in enhancing students’ problem-solving skills. The research employed a nonequivalent control group design, with a population comprising all Grade X Phase E students at SMA Negeri 3 Padang Panjang (277 students) during the odd semester of the 2024/2025 academic year. A sample of 66 students was selected through purposive sampling, consisting of classes X.E.3 and X.E.4. Data were collected through a problem-solving ability test. The results showed an average N-Gain of 70%, categorized as moderately effective. A hypothesis test was conducted to assess significant improvement after treatment, with normality and homogeneity tests confirming that the data were normally distributed and homogeneous. A t-test at a 0.05 significance level yielded tₕᵢₜᵤₙg (1.8685) > tₜₐᵦₑₗ (1.69), indicating that H₀ is rejected and H₁ is accepted. The study concludes that the use of e-LKPD in Liveworksheets based on problem-based learning significantly improves students’ problem-solving abilities in the topic of basic chemical laws. The implication is that interactive digital media, when integrated with problem-based learning approaches, can serve as an effective strategy for chemistry instruction in the digital era.
Improving the Skills of Posyandu Cadres in Processing Nipah Fruit into Nutrient-Rich Functional Foods to Prevent Stunting in Katapiang Village, Batang Anai District, Padang Pariaman Regency Iryani, Iryani; Iswendi, Iswendi; Kurniawati, Desy; Amelia, Fitri; Suryani, Okta; Parbuntari, Hesty; MAIDA, MARGARITA CLAUDYA; Rivaldo, Ifan
Pelita Eksakta Vol 8 No 2 (2025): Pelita Eksakta, Vol. 8, No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol8-iss2/302

Abstract

Stunting remains a major public health issue in Indonesia, including in Padang Pariaman Regency, where the prevalence reached 28.3% in 2021 and declined to 19.4% in 2023. Efforts to prevent stunting require a community-based approach that utilizes local resources, one of which is the nipa palm fruit (Nypa fruticans), known for its high nutritional content and potential as functional food. This Community Service Program (PKM) aimed to enhance the knowledge and skills of Posyandu cadres in Nagari Katapiang in processing nipa fruit into nutritious and economically valuable food products. The methods included nutrition education, dissemination of information on nipa fruit potential, and training on appropriate technology for processing nipa into food products such as jam, nuggets, and meatballs. Evaluation was carried out through pre- and post-activity questionnaires. The results showed a significant increase in cadres’ knowledge of nipa’s nutritional content (from 20% to 100%) and health benefits (from 30% to 100%). Perceptions of nipa’s role in stunting prevention also increased from 25% to 95%. Furthermore, practical skills in producing nipa jam improved, where all participants who had never tried before were able to produce processed products after the training. Thus, this PKM activity successfully enhanced the knowledge and practical skills of Posyandu cadres, while demonstrating the potential of nipa fruit as a local food innovation supporting stunting prevention efforts.
Co-Authors Aini, Syamsi Alizar, Alizar Annisa Annisa Asnah, Nur Azura, Nur Azzahra, Wenalda Hanifah Budhi Oktavia Danar Danar Danar, Danar Deski Beri Desy Kurniawati Erwan, Meriska Octavia Fajri, Ayu Insa fatimah Fatimah Febri Perdana, Keke Febrianti, Latifah Intan Firdaus, Salsabila Fitri Amelia Husna, Miftahul Ifan Rivaldo Illahi, Annisa Ridho Iryani Iryani Iswendi iswendi Kholifah, Siti Nurriyatul Kiki Amelia, Kiki Lestari, Nasa Bela Dwi Mahmud Mahmud Maida, Margarita Claudya Martha, Rahma Dyan Maulidina, Freshilla Megawati - Miftahul Rahmi, Miftahul Muadifah, Afidatul Octaviana, Nur Putri, Reza Athia Rahma Diyan Martha Safitri, Yunita Diyah Saputra, Anwar Suryani, Okta Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Yuliandari, Fadhira Yulistia, Siska