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The Effect of Carbon on Chitosan-ZnO Composites as Fabric Mask Coating Materials Mauliana, Metatia Intan; Findawati , Yulian; Hanum, Galuh Ratmana
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 20 No. 2 (2023): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/sainmatika.v20i2.12651

Abstract

Increasing the effectiveness of cloth masks can reduce the use of disposable medical masks which creates a new waste problem. In this research, the synthesis of zinc oxide nanoparticles was carried out using the precipitation method through the reaction between zinc nitrate and phosphoric acid as one of the ingredients in the chitosan-ZnO/C composite mixture. The carbon source is obtained from activated coconut shell carbon using sodium hydroxide. X-ray diffractometer (XRD) testing was carried out to determine the phase content of the synthesized carbon powder. XRD testing was also carried out on synthesized ZnO particles to determine the occurrence of phase transformations and to determine the quantitative and qualitative characteristics of the material. Fourier Transform Infrared testing was also carried out to observe functional group bonds formed in carbon compounds. Composite materials that have been successfully made will then be tested for hydrophobicity by calculating the contact angle. The results of this study indicate that the synthetic base material has been successfully carried out and the composite has been successfully made. The highest water contact angle is 106o was found in the chitosan/ZnO composite sample with a ratio of 2:1 and a mass variation of 0.05 gr active carbon.
Analysis of Lead (Pb) and Zinc (Zn) Levels in Milkfish (Chanos Chanos) at Kalanganyar Market Sidoarjo Using Atomic Absorption Spectrophotometer (Aas) Method Hanum, Galuh Ratmana; Wahyudi, David Andrian; Pramushinta, Intan Ayu Kusuma
Medicra (Journal of Medical Laboratory Science/Technology) Vol 4 No 2 (2021): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v4i2.1509

Abstract

Water pollution occurs due to the inclusion of chemical substances, components in the form of gases, and solvents so that the quality of water becomes polluted and harmful to the life of organisms in the waters, especially in fish farming. Polluted waters can contain heavy metals. fish can be exposed to heavy metals due to polluted waters. Heavy metals with high or low levels can also cause various types of dead water biota. If the fish exposed to heavy metals consumed by humans will over-accumulate or accumulate in the body, thus endangering health. This study was conducted to determine the levels of heavy metals Lead (Pb) and Zinc (Zn) contained in the meat of fish bandeng in the market Kalanganyar Sidoarjo with Atomic Absorption Spectrophotometer (AAS). This research was conducted in Applied Chemistry Laboratory of Medical Laboratory of Faculty of Health Sciences, University of Muhammadiyah Sidoarjo and Chemistry Laboratory of FMIPA Universitas Islam Maulana Malik Ibrahim Malang in February-April 2021. In this study using descriptive cross sectional research type. Data analysis method using measurement and observation as well as descriptive statistical analysis. 20 samples were used. The results of heavy metal levels in this study obtained the highest levels of lead heavy metal (Pb) of 0.354 mg/kg. While the lowest level is 0.062 mg/kg. Zinc (Zn) heavy metal content is highest at 3,132 mg/kg. While the lowest level is 0.606 mg/kg.
Pengaruh Lama Penggunaan Minyak Goreng Kelapa Sawit terhadap Karakterisasi Trigliserida dan Crude Glycerol Febiola, Intan; Hanum, Galuh Ratmana
Medicra (Journal of Medical Laboratory Science/Technology) Vol 1 No 1 (2018): July
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v1i1.1474

Abstract

The price of cooking oil has been increasing every year. Repetaed of using cooking oil will appearance negative impact for healthy and positive impact for biodiesel industry as raw material glycerol. This research aim to knowing the effect of times palm cooking oil for characteristic triglyceride and crude glycerol of pH, flavour, colour, density, and content for daily use. The category of sample is 0 day as control, 4 days as P1, 8 days as P2, 12 days as P3 with experiment laboratory method. The statistic was perfomed by binomial test for flavour, kruskal-wallis test for colour, and one way anova for pH, density, and content. If any treatment effect was continued with post hoc test. The result showed as control; P1; P2; P3 of characteristic triglyceride respectively for pH are 6.67; 6.13; 6.13; 5.88; for flavour is not flavourfull for all type; for colour are yellow; yellow; clear-yellow; brownish-yellow; for density are 0.740; 0.789; 0.747; 0.734; and content are 93.8; 83.9; 80.2; 75.3. whereas characteristic of crude glycerol respectively for pH are 5.92; 6.18; 6.35; 6.28; for flavour is not flavourfull for all type; for colour are yellow; yellow; red-yellow; red; for density are 1.058; 0.961; 1.021; 1.036; and content are 34.4; 46.3; 51.1; 58.4. The result of statistic is times palm cooking oil not influence for pH, but influence significantly for flavour, colour, density, and content.
Efektivitas Temu Kunci (Boesenbergia rotunda) Terhadap Penurunan Kadar Formalin Pada Ikan Tuna (Thunnus sp.) Zamhariroh, Zamhariroh; Hanum, Galuh Ratmana
Medicra (Journal of Medical Laboratory Science/Technology) Vol 1 No 2 (2018): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v1i2.1650

Abstract

Tuna as a marine fish that has an exceptional potential to be the mainstay of Indonesia. The high demand for tuna makes a great opportunity for Indonesia as a producer in the export of these products. Related to this condition, the producers have come up with a variety of ways to keep the fish appear fresh by way of preservation, one of them is by using formalin. Finger root plants have active compounds that can reduce formalin in tuna saponins. This study used tuna fish that had been soaked with a solution containing 10% formalin. The research was conducted at Surabaya City Health Office. Formalin content was measured using the spectrophotometer method. Parameters used were formalin content. The results of this study indicate that the concentration of key solution and storage duration significantly influence at 50% concentration for 5 days is the most effective concentration and duration of immersion with an average yield of 0,04 mg/l.
Pengaruh Filtrat Bawang Merah (Allium cepa) Terhadap Kadar Formalin pada Ikan Kembung (Rastrelliger sp) Anglania, Shintya Rara; Hanum, Galuh Ratmana
Medicra (Journal of Medical Laboratory Science/Technology) Vol 2 No 1 (2019): July
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v2i1.1654

Abstract

Fish contains of protein, vitamins, fats and minerals for the body health. Many manufacturers still use formaline for preservation in fish. Onion can reduce the formaline levels in fish with saponin. This study aims to analyze the efficacy of onion to decrease the formaline levels in mackerel fish. This research is experimental laboratory with several parameters, such as: formalin levels, water content, ash content and bacterial analysis. The samples were used 10%, 20%, 30%, 40% and 50% filtrate for 1, 3 and 5 days soaking. The result of the research showed 50% filtrate for 5 days can reduce formalin level is 0.10 mg/L.Water content with 10% filtrate for 1 day is the best result (12.15%), ash content with 10% filtrate with for 1 day is the best result (0.22%). The best results for bacterial analysis in 1 day with 0 colon. This study used Repeated Measure Anova statistical with variation of onion filtrates obtained p-value=0.000 (p<0.05). The results showed that onion filtrates potentially decreased formaline levels in mackerel fish.
Aktivitas Antibakteri Kombinasi Ekstrak Daun Mengkudu (Morinda citrifoli L.) dan Bawang Putih (Allium sativum) terhadap Escherichia coli dan Staphylococcus aureus: Antibacterial Activity of Noni Leaf Extract (Morinda citrifoli L.) and Garlic (Allium sativum) against Escherichia coli and Staphylococcus aureus Lestari, Indah; Hanum, Galuh Ratmana
Medicra (Journal of Medical Laboratory Science/Technology) Vol. 2 No. 2 (2019): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v2i2.1475

Abstract

Indonesia is a nation with rich medicinal plants. Medicinal plants can be used for the treatment of diseases due to bacterial infection. Noni leaf (Morinda citrifolia) and garlic (Allium sativum) are medicinal plants and herbs that have the potential to inhibit or kill Escherichia coli and Staphylococcus aureus. The aim of this research is to know the antibacterial activity on the combination of extract noni leaf (Morinda citrifolia) and garlic (Allium sativum) to growth of Escherichia coli and Staphylococcus aureus. In this study using a research design that is a complete randomized design with purposive judgment sampling method.Anti-bacterial activity test performed by the disk diffusion method. The concentration of extract used is 10%, 30%, 60% and 90%. The analysis was done by Kruskal-Wallis test. The results of this study showed that a combination of 30% leaf extract and 10% garlic extract able to inhibit the growth of Staphylococcus aureus bacteria optimally with the average area of the inhibit zone is 12 mm. While on the combination of 30% noni leaf extract and 90% garlic extract able to inhibit the growth of Eschericia coli optimally with the average area of inhibit zone is 22,27 mm.
Test of Lead (Pb) and Zinc (Zn) on Tiger Shrimp (Penaeus monodon) at Kalanganyar Market, Sidoarjo with Atomic Absorption Spectrophotometer (AAS) Sejati, Risqi Agil Wahyu; Hanum, Galuh Ratmana; Pramushinta, Intan Ayu Kusuma
Medicra (Journal of Medical Laboratory Science/Technology) Vol 5 No 1 (2022): July
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v5i1.1624

Abstract

Sidoarjo City in East Java Province has a pond area of up to 7.68%. One of the cultivations developed in ponds is tiger shrimp (Penaeus monodon), which are mostly sold in Sidoarjo. The presence of metals in aquatic bodies comes from natural sources that enter can be the erosion of mineral rocks found in the aquatic environment. Tiger shrimp is one type of shrimp that is preferred by most Indonesian people. If this shrimp is contaminated by heavy metals, it will harm the people who consume it. This research was conducted to find out the levels of heavy metals Timbal (Pb) and Seng (Zn) contained in tiger shrimp (Penaeus monodon) windu shrimp in the market of Sidoarjo with the Atomic Absorption Spectrophotometer (AAS) method. This research was conducted at the Laboratory of Applied Chemical Technology Medical Laboratory of the Faculty of Health Sciences, University of Muhammadiyah Sidoarjo and the Chemistry Laboratory of FMIPA of Maulana Malik Ibrahim University of Malang. Data analysis methods use measurement and observation as well as descriptive statistical analysis. The results of heavy metal levels in this study obtained the highest levels of lead heavy metals (Pb) of 0.596 mg/kg while the lowest levels amounted to 0.544 mg/kg and the highest levels of zinc heavy metals (Zn) amounted to 3.930 mg/kg while the lowest levels amounted to 3.016 mg/kg.
Analysis Of Lead (Pb) Heavy Metal Content In Smoking Farmers Tamala, Desy; Hanum, Galuh Ratmana
Medicra (Journal of Medical Laboratory Science/Technology) Vol 5 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v5i2.1663

Abstract

Farmers in the village of kedungrejo jombang in carrying out their activities some of them have a smoking habit where in cigarettes there are some heavy metal content such as lead (Pb). Lead (Pb) is a heavy metal that is toxic to human health. Lead can cause interference and damage to the kidney function system. The purpose of the study was to determine the relationship between lead heavy metals in the urine of actve and passive smokers in kedungrejo village. This research used the Atomic Absorption Spectrophotometer (AAS) method with 20 farmer urine samples. The results showed that lead heavy metal levels were below the threshold value of 0,15 mg/l. The results of Pearson correlation obtained p value = 0,021 ; r = 0,510. It can be concluded that there is a moderate relationship between heavy metals and urine of active and passive smokers of farmers.
Test The Effectiveness Of Japanese Papaya Leaf Extract (Cnidoscolus aconitifolius) On Aedes aegypti Larvae Mortality Ardiansyah, Syahrul; Nafsi, Faizatun; Hanum, Galuh Ratmana
Medicra (Journal of Medical Laboratory Science/Technology) Vol 6 No 1 (2023): July
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/medicra.v6i1.1671

Abstract

Dengue hemorrhagic fever (DHF) is caused by the dengue virus which is transmitted through the bite of the Aedes aegypti mosquito. Prevention of DHF can be done by using larvicides. Synthetic chemical larvicides are considered to have side effects in long-term use and can cause environmental pollution. So we need an alternative larvicides with natural ingredients from plants, namely Japanese Papaya plants. This study aims to determine the effectiveness of Japanese Papaya (Cnidoscolus aconitifolius) leaf extract on the mortality of Aedes aegypti larvae. This type of research uses an experimental study design. This study used 6 treatments with 4 repetitions consisting of control without treatment, P1 (0.2%), P2 (0.4%), P3 (0.6%), P4 (0.8%), and P5 (1%). Observations were made for 48 hours. From the research results obtained LC50 of 1.095%. The results of statistical tests using One-Way ANOVA showed that there was a significant effect on the mortality of mosquito larvae.
E Service Quality, Trust and Satisfaction on Consumer Loyalty at Hospital: Kualitas Layanan Elektronik, Kepercayaan dan Kepuasan Terhadap Loyalitas Konsumen Rumah Sakit Indayani, Lilik; Sumartik; Hanum, Galuh Ratmana; Adinda, Taskia Putri; Viranti, Adelia Eva
Procedia of Social Sciences and Humanities Vol. 3 (2022): Proceedings of the 1st SENARA 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v3i.243

Abstract

Rapid technological advances in the industrialization era make companies move faster in meeting needs. Government regulations that limit the distance and capacity of hospitals are the main factors for the emergence of e-service quality. Doctors have started to limit face-to-face contact with patients to avoid the risk of contracting Covid-19. This of course provides a business idea for hospital digital health service providers to apply it in the form of services. The quality of electronic services is also very important for the hospital health business to promote superior products and services to reach loyal consumers. The purpose of this study was to determine the mediating effect of customer satisfaction on customer loyalty with e service quality and trust variables, an integrated health business strategy from the direct effect of e service quality and trust on customer loyalty. Descriptive research design with quantitative methods, where the population is taken from consumers who use Siti Khodijah Hospital throughout Sidoarjo, researchers use random sampling technique in distributing questionnaires using accidental sampling, anyone encountered can be used as a sample, by taking 120 samples with indicators and statement items as much as 20 items. The software used is SEM PLS Wrap3.0. The resulting output is an increase in service quality to e service quality in the health business, consumer behavior and environmental conditions that determine consumers are satisfied and believe in health business products and services for individual consumers in line with the development of digital technology with a significance level of t count greater than t table and the VAF value is less than 80%, which means that customer satisfaction as an intervening variable is able to partially mediate.