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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Media Gizi Indonesia (MGI) Research of Environmental Science and Engineering Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal)
Muhayatun Santoso
Pusat Sains dan Teknologi Nuklir Terapan, BATAN
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Health Professions Public Health

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Assessment of Zn and Cu in Primary School Children’s Street Foods Handayani, Elya Hilda; Oginawati, Katharina; Santoso, Muhayatun
Research of Environmental Science and Engineering Vol 1 No 1 (2020): Reseach of Environemntal science and Engineering
Publisher : Research of Environmental Science and Engineering

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Abstract

Metal elements are needed by body for metabolic processes. For examples are Cu and Zn. These metals present in food naturally. However, food can be contaminated by metals from the environment. Excess consumption of metal elements can cause disease for consumers. Primary school children’s foods are one of the problems of metal contamination that need attention. There are some sellers who put hazardous materials into the food or the food’s sanitation is neglected in food processes. Thus the analysis carried out by first doing sampling at four primary schools in Bandung to check the concentration of Cu and Zn metals in these foods. The number of samples taken is 6 pieces per location. From laboratory analysis using atomic absorption spectrophotometry method the results show the highest Cu concentrations of children’s street foods was Kentang 4,11 mg/kg and the highest of Zn was biting with 22,43 mg/kg.
POTENSI ANCAMAN HILANGNYA KANDUNGAN MINERAL ALAMI (TENORM) DI WILAYAH PENGHASIL TAMBANG KABUPATEN BANGKA TENGAH Hardiansyah, Jhoni; Samihardjo, Isroil; Santoso, Muhayatun
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 2 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.2.20

Abstract

The community in Central Bangka Regency carried out an increase in illegal mining in 2021, which could potentially threaten the loss of strategic natural resources. Rocking table miners in Central Bangka Regency produce zircon sand, tin sand, monazite, ilmenite, and tailings, which are potential natural resources containing rare earth metal elements. This research aims to analyze the radioactive content of the minerals zircon sand, tin sand, monazite, ilmenite, and tailings as a threat to human health. The research showed that monazite samples from all villages still had a lot of rare earth metals in them, like yttrium (Y), lanthanum (La), cerium (Ce), samarium (Sm), neodymium (Nd), and gadolinium (Gd). The test results showed that monazite had the highest average concentrations of Rare Earth Elements (REEs), with values of 10.27±3% for La, 12.15±3% for Ce, 24.40±3% for Sm, 7.37±3% for Nd, and 0.69±3% for Gd. For tin samples, the average (Ce) was 2.79±3%, zircon samples had an average (Ce) of 4.33±3%, and (Nd) 1.04±3%. In the ilmenite samples, the average value (Y) was 6.64 ± 3%. Monazite has the most rare earth metal elements, but it has a very low selling price. Monazite plays a crucial role in safeguarding and preventing the loss of strategic natural resources and health threats. It provides policy advice to related institutions through various roles and functions, including investigation, early prevention, and forecasting of these threats.
Personal Exposure of Traffic Policeman to Particulate Matter in Jakarta: Distribution of Size, Chemical Composition, and Work Time Ramdhan, Doni Hikmat; Ahmad, Eka Fitriani; Kurniasari, Fitri; Rizky, Zuly Prima; Atmajaya, Hardy; Santoso, Muhayatun
Kesmas Vol. 14, No. 2
Publisher : UI Scholars Hub

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Abstract

Particulate matter (PM) is an air pollutant that has an impact on public health, especially in an urban area. The objective of this study was to analyze the personal concentration of PM2.5 and its composition among police working in the roadside area in Jakarta. PM measurement has done to the policeman that controlled traffic on four near highway locations in Jakarta. Sioutas impactor, Leland Legacy personal pump, and quartz fiber filter were chosen to measure the fine particles. Each PM was measured for 8-hour period. PM concentration was analyzed by the gravimetric method while tracing element and black carbon in PM0.25 by energy dispersive X-ray fluorescence (EDXRF) and EEL Smoke Stain Reflectometer. As a result, near highway PM2.5 concentration in Jakarta during weekdays and weekends measurement are 92.18 ± 10.66 μg/m3, and 78.09 ± 11.61 μg/m3. S, K, Fe, Ca, Zn, and Pb are major elements found in all locations. The black carbon concentration in all location was 17 ± 5.7 μg/m3. A high concentration of fine particles, a traffic-related trace element in PM0.25, and black carbon are showed that traffic-related source is the major contributor to a high level of fine particulate matter at near highway locations in Jakarta. The weekday's concentration of PM2.5 and PM0.25 among Jakarta Policemen was higher than in the weekend concentration. A particle with size of less than 0.25 µm dominated the fine particles concentration. Further researcher is expected to see the difference in the effects of traffic-related particulate matter exposure between traffic policeman and police who work at office.
POTENSI ANCAMAN HILANGNYA KANDUNGAN MINERAL ALAMI (TENORM) DI WILAYAH PENGHASIL TAMBANG KABUPATEN BANGKA TENGAH Hardiansyah, Jhoni; Samihardjo, Isroil; Santoso, Muhayatun
Jurnal Tanah dan Sumberdaya Lahan Vol. 11 No. 2 (2024)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2024.011.2.20

Abstract

The community in Central Bangka Regency carried out an increase in illegal mining in 2021, which could potentially threaten the loss of strategic natural resources. Rocking table miners in Central Bangka Regency produce zircon sand, tin sand, monazite, ilmenite, and tailings, which are potential natural resources containing rare earth metal elements. This research aims to analyze the radioactive content of the minerals zircon sand, tin sand, monazite, ilmenite, and tailings as a threat to human health. The research showed that monazite samples from all villages still had a lot of rare earth metals in them, like yttrium (Y), lanthanum (La), cerium (Ce), samarium (Sm), neodymium (Nd), and gadolinium (Gd). The test results showed that monazite had the highest average concentrations of Rare Earth Elements (REEs), with values of 10.27±3% for La, 12.15±3% for Ce, 24.40±3% for Sm, 7.37±3% for Nd, and 0.69±3% for Gd. For tin samples, the average (Ce) was 2.79±3%, zircon samples had an average (Ce) of 4.33±3%, and (Nd) 1.04±3%. In the ilmenite samples, the average value (Y) was 6.64 ± 3%. Monazite has the most rare earth metal elements, but it has a very low selling price. Monazite plays a crucial role in safeguarding and preventing the loss of strategic natural resources and health threats. It provides policy advice to related institutions through various roles and functions, including investigation, early prevention, and forecasting of these threats.
Iron, Zinc, and Calcium Bioavailability of Nutrient-Dense Foods for Designated Complementary Feeding of Children Under Two in East Nusa Tenggara Sanjiwani, Putu Amrytha; Fahmida, Umi; Santoso, Muhayatun; Marliyati, Sri Anna; Mansyur, Muchtaruddin
Media Gizi Indonesia Vol. 21 No. 1 (2026): MEDIA GIZI INDONESIA
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/mgi.v21i1.52-64

Abstract

Background: Inadequate quantity and quality of complementary feeding contribute substantially to micronutrient deficiencies, particularly iron, zinc, and calcium. In Indonesia, intake of these micronutrients is frequently suboptimal, and their bioavailability is often compromised by dietary inhibitors, primarily phytate. Objective: This study aimed to compare the in vitro bioavailability of iron, zinc, and calcium from selected locally available animal-and plant-source foods with potential for promotion in complementary feeding among children aged 6–24 months, and to evaluate the effects of pre-processing treatments on micronutrient bioavailability and phytate reduction. Method: A laboratory-based experimental study was conducted to assess the micronutrient bioavailability and phytate content in sticky corn, mung beans, cowpeas, and moringa leaf subjected to soaking (24 h), boiling, and germination (72 h). Bioavailability was analyzed using a solubility-based in vitro digestion model. Anchovy and chicken liver served as animal-source comparators. Result: Pre-processing treatments significantly reduced phytate content in mung beans, cowpeas, and sticky corn (p < 0.001), with germination yielding the greatest reduction. However, desirable calcium bioavailability was not achieved in germinated cowpeas and sticky corn. Anchovy and chicken liver exhibited substantially higher iron, zinc, and calcium bioavailability compared with plant-source foods. Conclusion: Germination of plant-source foods enhances iron, zinc, and calcium bioavailability; however, their bioavailability remains lower than that of animal-source foods. Further studies are needed to determine the optimal animal-to-plant-source food ratios for the development of nutrient-dense complementary foods that meet iron, zinc, and calcium requirements.
Co-Authors Ahmad, Eka Fitriani Atmajaya, Hardy Doni Hikmat Ramdhan Handayani, Elya Hilda Hardiansyah, Jhoni Katharina Oginawati Kurniasari, Fitri Muchtaruddin Mansyur Rizky, Zuly Prima Samihardjo, Isroil sanjiwani, putu amrytha Sri Anna Marliyati Umi Fahmida