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All Journal Techno: Jurnal Penelitian SAINTIFIK@ : Jurnal Pendidikan MIPA Media Kesehatan Politeknik Kesehatan Makassar Science Get Journal
Khadijah Khadijah
Prodi Pendidikan Kimia FKIP Universitas Khairun
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Dentistry Education Environmental Science Health Professions Immunology & microbiology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analisis Kandungan Vitamin C Daun Kelor (Moringa oleifera Lam) Pada Ketinggian Berbeda di Kota Baubau Sarni Sarni; Hasti Hamzah; Abdul Malik; Ida Ifdaliah A; Khadijah Khadijah
TECHNO: JURNAL PENELITIAN Vol 9, No 1 (2020): Techno Jurnal Penelitian
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tjp.v9i1.1719

Abstract

Moringa plants are one of the plants that contain lots of nutrients both minerals and vitamins. This study aims to determine the content of Vitamin C extract of Moringa oleifera Lam extract with different heights in Baubau. Moringa leaves were extracted by maceration using water and Sodium Oxalate (Na2C2O4) and vitamin C levels were analyzed using the UV-Vis Spectrophotometer Method. The results showed that the vitamin C content of Moringa leaves for a height of 20 masl (KP 20) in the coastal area was 0.59%, 50 masl (KM 50) 0.53%, while for an altitude of 296 masl (LBW) was 0.83% . From the data obtained shows that the highest levels of vitamin C are Moringa leaves located at a height of 296 mdl (LBW) compared to areas with low altitude in this case Moringa that grows on the coast (KP 20) and medium height (KM 50). From the results of this study it can be concluded that the vitamin C content of Moringa leaf extract which grows in the low area is 296.40 ppm, medium height 267,12 ppm and for the altitude region is 413.71 ppm.
UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN MURBEI (Morus alba L) ASAL KUPANG, NUSA TENGGARA TIMUR DENGAN METODE DPPH (2,2 DIPHENIL-1- PICRYLHYDRAZYL) Megawati Syahruddin; Muhammad Aswad; Yohanes D.P. Agung Embu; Khadijah Khadijah
TECHNO: JURNAL PENELITIAN Vol 8, No 1 (2019): Techno Jurnal Penelitian
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/tk.v8i1.947

Abstract

Murbei (Morus alba L.) merupakan salah satu tanaman yang tumbuh di Indonesia dan  banyak digunakan dalam  pengobatan tradisional. Beberapa khasiat dari murbei kemungkinan  berhubungan  dengan  daya  antioksidannya.  Tujuan  dari  penelitian  ini adalah untuk mengetahui aktivitas antioksidan ekstrak etanol daun murbei yang berasal dari Kupang. Daun murbei diekstraksi dengan metode maserasi menggunakan pelarut etanol 70%. Ekstrak diuji terhadap DPPH sebagai radikal bebas dan diukur pada panjang gelombang 517  nm  dengan menggunakan spektrofotometer UV-Vis. Hasil penelitian menunjukkan ekstrak etanol daun murbei dari Kupang Nusa Tenggara Timur, memiliki aktivitas antioksidan sangat kuat  dengan  nilai  IC50   8,35  µg/mL, namun masih  lebih rendah dibandingkan kuersetin sebagai kontrol postif  dengan nilai IC50   0,82  µg/mL. Penelitian ini menyimpulkan bahwa ekstrak etanol daun murbei dari Kupang memiliki aktivitas antioksidan yang sangat kuat
Effect of Boiling on Total Phenolics and Antioxidant Activity (DPPH And ABTS) of Carica Papaya Flower Ethanolic Extracts Khadijah Khadijah; Merlin Merlin; Ahmad Muchsin Jayali; Artati Artati; Wa Reti La Maca; Wa Andini Ariyani; Sarni Sarni; Ikram Hamid
Media Kesehatan Politeknik Kesehatan Makassar Vol 21 No 1 (2026): Media Kesehatan
Publisher : Direktorat Politeknik Kesehatan Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32382/medkes.v21i1.2036

Abstract

Carica papaya flowers are widely found in North Maluku, Indonesia, and have potential as a source of phenolic compounds with antioxidant activity. However, information on the effect of boiling on their phytochemical profile and bioactive properties is still limited. This study aimed to compare the phytochemical profile, total phenolic content, and antioxidant activity of ethanol extracts from raw and boiled C. papaya flowers. Fresh flowers were prepared as raw and boiled samples at 90°C for 10 min, then extracted with ethanol. Qualitative phytochemical screening was carried out, total phenolic content was determined using the Folin-Ciocalteu method, and antioxidant activity was evaluated using DPPH and ABTS assays in triplicate. The qualitative phytochemical profile of both extracts showed the presence of alkaloids, flavonoids, phenolics, steroids, terpenoids, and saponins. Boiled C. papaya flower extract had higher total phenolic content than raw extract, with mean values of 14.42 mg TAE/g and 8.05 mg TAE/g, respectively. Boiled extract also showed stronger antioxidant activity, with lower IC5050​ values in the DPPH assay (197.99 mg/L vs. 289.31 mg/L) and ABTS assay (94.37 mg/L vs. 134.48 mg/L). These results suggest that boiling may enhance the release of phenolic compounds and improve the antioxidant potential of C. papaya flowers. Further studies using compound identification, statistical validation, and in vivo testing are needed to confirm these findings and support their application in functional food development.
Evaluation of Art Integrated Physics Learning in a STEAM Approach to Improve STEM Literacy and Student Creativity Khadijah; Muhammad syafruddin Akmal; Hutri Handayani Isra
SAINTIFIK@: Jurnal Pendidikan MIPA Vol 11 No 1 (2026): SAINTIFIK@: Jurnal Pendidikan MIPA EDISI MARET 2026
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/saintifik.v11i1.11675

Abstract

The STEAM (Science, Technology, Engineering, Arts, and Mathematics) approach is a development of STEM learning that integrates elements of art to strengthen students' creativity and conceptual understanding. STEAM-based physics learning is considered to be able to overcome abstract physics characteristics, but its implementation requires an appropriate and comprehensive evaluation system. This study aims to evaluate the learning of art integrated physics in the STEAM approach reviewed from STEM literacy and student creativity. The research uses a qualitative descriptive approach through literature study and analysis of art project-based physics learning practices. Data was collected from national and international journal articles, reference books, and relevant learning documents. Data analysis techniques are carried out through data reduction, data presentation, and conclusion drawn. The results of the study show that the evaluation of STEAM-based physics learning is more effective using authentic assessments, such as performance assessments, project assessments, portfolios, and science arts products. The evaluation is able to represent the understanding of physics concepts in a contextual manner and increase STEM literacy and creativity of students. This research is expected to be a reference in the development of a STEAM-based physics learning evaluation model in high schools
Utilization of Microalgae as Carbon Absorbent Material for Environmentally Friendly Concrete in Tropical Coastal Areas Risjunardi Damanik; Khadijah; Hanifah Sriamelia
Science Journal Get Press Vol 3 No 3 (2026): July,2026
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/science.v3i3.685

Abstract

This study evaluates the mechanical, durability, and carbon sequestration performance of a 1:1 blend of Chlorella vulgaris and Spirulina platensis biomass as a supplementary cementitious material (SCM) in concrete for tropical coastal infrastructure. Five replacement levels (0%, 3%, 5%, 7%, and 10% by weight of cement) were tested under ambient tropical conditions (28–32°C, 75–85% RH) reflecting West Sumatra's coastal environment. Compressive and flexural strength, water absorption, chloride penetration resistance, and CO₂ sequestration via thermogravimetric analysis were comprehensively assessed. Results indicate that 5% replacement (MA-5) achieved the optimal balance: 28-day compressive strength of 31.4 MPa (6.4% below control), while demonstrating 12.3% improved chloride resistance and a net carbon sequestration rate of 38.7 kg CO₂/m³ of concrete. Scanning electron microscopy confirmed microalgae cell-wall fragments filling interfacial transition zones, reducing porosity by 11.2% and enhancing matrix densification. The findings demonstrate that microalgae-incorporated concrete at 5% OPC replacement is a technically viable, low-carbon alternative for coastal tropical construction, offering both structural adequacy and environmental benefits. Adoption in Indonesia's green building programs is recommended, with future research needed to validate performance at industrial scale and assess long-term durability under field marine exposure.
Co-Authors Abdul Malik Ahmad Muchsin Jayali Artati Artati Hanifah Sriamelia Hasti Hamzah Hutri Handayani Isra Ida Ifdaliah A Ikram Hamid Megawati Megawati Merlin Merlin Muhammad Aswad Muhammad Syafruddin Akmal Risjunardi Damanik Sarni Sarni Sarni Sarni Wa Andini Ariyani Wa Reti La Maca Yohanes D.P. Agung Embu