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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis
Ida Ayu Arnawati
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Immunology & microbiology Materials Science & Nanotechnology Physics

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Skrining Fitokimia dan Uji Aktivitas Antibakteri Madu Putih Sumbawa terhadap Bacillus megaterium Nurmi Hasbi; Rosyunita Rosyunita; Adelia Riezka Rahim; Eusthacius Hagni Wardoyo; Ida Ayu Arnawati; Saskia Safarina Haza; Lale Nandhita Hulfifa; Abiel Dwi Cahya Firdaus Alamsyah; I Komang Satya Validika
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.4913

Abstract

Bacillus megaterium is a bacteria that causes human infections, causing keratitis, skin infections, brain abscesses and tissue infections. Treatment often uses chemical antibiotics. However, long-term antibiotics can cause new health problems such as resistance. Therefore, antibacterial ingredients are needed that can not only inhibit the growth of bacteria but also do not have a negative impact on health such as honey. Honey is thick, it can cure various diseases such as gastrointestinal, stomach, skin diseases, acute respiratory infections and coughs. This research aims to determine the ability of Sumbawa white honey as an antibacterial against B. megaterium. The method used in this research is paper disc diffusion. There were five treatments used in this study, between 100%, 75% and 25% honey concentrations, DMSO negative control and chloramphenicol positive control with five replications each. The results of the antibacterial activity test showed that the 100% concentration had an inhibitory zone diameter of 2.59 mm, then the 75% concentration was 1.46 while the 25% concentration was 0 mm. When compared with positive control, white honey was lower antibacterial. If it is in the white honey category, the inhibition zone category is included in the lower category.
The Association Between Calcium (Ca) Intake and Severity of Stunting Among Children Aged 6–24 Months in Working Area of Bagu Primary Health Care Center, Central Lombok Regency Nur Hikmah; Lina Nurbaiti; Amelia Ramdani Hasby; Ida Ayu Arnawati
Jurnal Biologi Tropis Vol. 26 No. 4 (2026): in Progress
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i4.13273

Abstract

Stunting remains a major chronic nutritional problem and public health concern, particularly among children under two years of age. Calcium is an essential micronutrient involved in bone formation and mineralization that supports linear growth. This study aimed to determine the association between calcium intake and stunting severity among children aged 6–24 months. An analytical observational study with a cross-sectional design was conducted among 43 children recruited using total sampling. Calcium intake was assessed using a 1×24-hour food recall and analyzed using NutriSurvey. Stunting severity was determined based on length/height-for-age (LAZ/HAZ) according to World Health Organization growth standards. The association between calcium intake and stunting severity was analyzed using the Chi-square test with the Exact (Monte Carlo) approach. Most participants were aged 12–24 months (88.4%), with 67.4% classified as stunted and 32.6% as severely stunted. Most children had deficient calcium intake (95.3%), while 72.1% obtained calcium primarily from animal-based food sources. No significant association was found between calcium intake and stunting severity (p = 0.544). In conclusion, calcium intake was not significantly associated with stunting severity among children aged 6–24 months in the working area of Bagu Primary Health Care Center, Central Lombok Regency.
Co-Authors Abiel Dwi Cahya Firdaus Alamsyah Adelia Riezka Rahim Amelia Ramdani Hasby Eusthacius Hagni Wardoyo Hasbi, Nurmi - I Komang Satya Validika Lale Nandhita Hulfifa Lina Nurbaiti Nur Hikmah Rosyunita Saskia Safarina Haza