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Choirul Amri
Polteknik Kesehatan Kemenkes Yogyakarta
Health Professions

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Pengaruh Posisi Bukaan Tempat Penyimpanan Makanan Jadi Pedagang Kaki Lima Terhadap Angka Kuman Afrida Nur Fauzia; Mohammad Mirza Fauzie; Choirul Amri
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 3 No. 2 (2011): Februari
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Most street vendors heedless to the placement of their cart because of the limitation of the available area. This condition may influence the safety of their consumers due to the potential contamination which comes from air micro-organisms. To identify which of the stall opening positions that are safer, this experimental study were carried out. Result of laboratory examination showed that the average total plate count in position A (i.e. against with the street) was 252 colony/hour/100 cm2, position B (i.e. same direction with traffic) was 319 colony/hour/100 cm2, position C (i.e. opposite with traffic direction) was 392 colony/hour/100 cm2, and position D (i.e. facing the street) was 701 colony/ hour/100 cm2. The data analysis showed that the differences in air microbe number among those stall opening variations were significant. Since the posi-tion D was the highest number, it is suggested that the street vendors should pay attention to this opening position in order to prevent their commodity from contamination.
Pemanfaatan Bawang Putih dan Daun Pandan sebagai Pengawet Alami Tahu Ditinjau dari Masa Simpan dan Tingkat Kesukaan Nur Cholifah; Lilik Hendrarini; Choirul Amri
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 9 No. 1 (2017): Agustus
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Tofu is a very popular food among the society. However, tofu is easily damaged (rotten) be-cause in normal condition (room temperature) the durability is in average of only 1-2 days. More than those days, tofu’s taste will be sour and gradually will decay, and therefore no longer con-sumable. So that, tofu maker often trying to add harmful preservatives such as formalin to extend the shelf life of tofu. Garlic and pandan leaves are natural preservatives alternative that is ex-pected can extend the shelf life of tofu but keep the taste still to be liked by the society. The ob-jective of this study was to identify the difference about the shelf life and the taste of tofu that was soaked in mixture solution of 2,5 % garlic and 2,5 % pandan leaves with those that was soaked in mineral water. Type of this research is a quasi-experiment with post-test only control group design. As the study object was 1440 pieces white tofu sized of 2 cm x 2 cm x 2,5 cm for 16 replications. The shelf life was measured by using ESS method based on organoleptic test, meanwhile the favour level based on tofu taste was gained from five panelists who observe the changing every 12 hours. Since the Shapiro-Wilk test stated that the data were not normally dis-tributed, so the further statistical analysis used Mann-Whitney test, and obtained p-values less than 0,001, which can be concluded that the the shelf life and the tase of tofu soaked in the solu-tion mixture of 2,5 % garlic and 2,5 % pandan leaves with tofu that was soaked in mineral water were significantly different. The duration of shelf life of tofu experiment was 23,3 hours longer than that of tofu control and the taste was also more favorable.
Efektifitas Jumlah Pasangan Elektroda Aluminium pada Proses Elektrokoagulasi terhadap Penurunan Kadar Fosfat Limbah Cair Laundry Puji Lestari; Choirul Amri; Sigid Sudaryanto
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 9 No. 1 (2017): Agustus
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Since one of the detergent-forming chemicals is phosphate, laundry wastewater contains this substance. In general, laundry businesses do not have waste treatment facilities, while high le-vel of phosphate which is accumulated continuously in waters may lead to eutrophication that disrupting aquatic ecosystems and causing river sedimentation. One of the methods to de-crease phosphate level from laundry wastewater is electrocoagulation, with aluminum plate as the electrode.The research was a true experiment and was aimed to know the decrease of phosphate levels in laundry wastewater yielded from “Rumah Laundry” located at Pajimatan, Imogiri, Bantu, after treated by electrocoagulation process with 3 pairs, 4 pairs and 5 pairs of aluminum electrode. The design of the research was pre-test post-test with control group in five times replications, on randomly selected treatment and control groups. The statistical test with paired t-test shows that the electrocoagulation process is able to reduce the phosphate levels in laundry waste water compared with those of the control (p-value < 0,05). By using the 3, 4, and 5 pairs of aluminium electrode, the reduction of phosphate levels were 31,4 %, 33,7 %, and 27,3 %, respectively. It can be seen that the effective decrease was from the 4 pairs of alumini-um electrode with 12 volt voltage and 500 mA current strength. However, the one way Anava test on those results of the three different electrode pairs shows no significant differences (p-va-lue > 0,05).
Pengaruh Bioscreen Anti Radiasi dari Tanaman Sansevieria trifasciata lorentii mein liebling terhadap Penurunan Radiasi Laptop Novia Ardhya Maryana; Choirul Amri; Sri Muryani
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 9 No. 3 (2018): Februari
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Advances in science and technology encourage people to develop and create various types ofelectronic devices. One of electronic equipments that is used widely in present day is laptop.Laptop as a product of modern technology still bring impact to our lives, one of which is radiation. The effect of radiation released by laptops is not directly perceived by the users, but after15-20 years. Sansevieria is one of plants that can be used as anti radiation bioscreen. The purpose of this study was to determine the decrease differences of laptop radiation before andafter being given anti radiation bioscreen made from Sansevieria trifasciata lorentii mein liebling. This research method was experiment with pre test post test with control group design.The data were analyzed descriptively and inferentially. The results reveal that the radiation incontrol group decreased in average of 0,32 x ???? (18,22 %), while in the treatment group, itwas 0,33 x ????(24,45 %).
Efektivitas Kangkung Air (Ipomoea aquatica) sebagai Fitoremediasi dalam Menurunkan Kadar Timbal (Pb) Air Limbah Batik Juwita Eka Hapsari; Choirul Amri; Adib Suyanto
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 9 No. 4 (2018): Mei
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Poor controlling mechanism on industrial waste have resulted in very wide pollution, such as li-quid waste containing Pb from batik making industries. Rivers that have been polluted by Pb compounds or ions which exceed the threshold concentration may result in death for aquatic bio-ta. Batik industries in Pilangkenceng has never conducted wastewater treatment. One of the treatment methods that can be applied is by using phytoremediation plants. The purpose of this research was to know the effectiveness of water spinach (Ipomoea aquatica) in decreasing the concentration of lead (Pb) in batik waste water, by conducting a pre-test post-test with control group designed experiment held in December 2017 to February 2018. The study results show that the average of Pb concentration before the treatment was 0,252 mg/l, and by adding five stems of water spinach, the concentration decreased 0,001 mg/l; adding 10 stems of spinach, decreased 0,077 mg/l; and adding 15 stems spinach, decreased 0,112 mg/l. Data analysis with one way anova statistical test at ?=0,05 shows significant difference among those decreases (p-value <0,001.
Minyak Atsiri Melati (Jasmine sambac) sebagai Disinfektan untuk Menurunkan Angka Kuman Udara di Puskesmas Sewon II Aulia Rosiana Dewi; Choirul Amri; Siti Hani Istiqomah
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 10 No. 1 (2018): Agustus
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Community health centre is place where healthy and ill people met, so that it is potential as diseases transmission site. The measurement of aerial bacteria number in Sewon II CommunityHealth Centre exceeded the 516 CFU/m3threshold. Volatile oil of jasmine (Jasmine sambac) canbe used as natural disinfectant because it has antibacterial compounds. The objective of thisstudy was to know the effect of evaporation time of jasmine (Jasmine sambac) volatile oil on thedecrease of aerial bacteria number. The study was a pre-experiment with one group pre-testpost-test design. The aerial bacteria were sampled in the martenal and children ward of Sewon IICommunity Health Centre, and then were examined at Microbiology Laboratory of The Polytechnic of Health of Yogyakarta. The results showed that the 3% volatile oil of jasmine (Jasminesambac) in 30 minutes evaporation time was able to decrease bacterial number as much as11.67 CFU/m3 (16.64 %), while in 60 minutes it was 38.22 CFU/m3 (40.92 %), and in 90 minutesit was 65.00 CFU/m3(56.31 %). Statistical analysis with one way anova test obtained a p-value?0.05 which means that the decrase difference between the three evaporation times is significant; and the 90 minutes time evaporation give the highest decrease.
Pemanfaatan Limbah Jerigen menjadi Safety Box di RSUD Wates Tahun 2016 Chichi Rodes Agustin; Choirul Amri; Adib Suyanto
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 8 No. 4 (2017): Mei
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Solid waste in the form of used jerrycans in Wates Local Public Hospital is comprised of twotypes, i.e. the 5 L jerrycan which was contained acid liquid and the 10 L jerrycan which was contained bicarbonate fluid. In a month, the number of used jerrycans may reach 300. The changeof the jerrycans into safety boxes is one of the innovations to take advantage of the existingjerrycan waste in the hospital. Eventhough those two substances contained in the jerrycan arealmost similar with infusion fluid, they are not classified as hazardous waste as long there is nocontact with patients. This study was aimed to know the receptivity of respondents, i.e. consistedof 38 nurses and 9 cleaning service officers, toward the safety boxes which made of cardboardand those which made of used jerrycan as well, by conducting a prospective designed survey.The data were analysed by using dependent t-test at ? = 0,05; and gained p-value less than0,01; which can be interpreted that the receptivity between the two types of safety box is significantly different. Therefore, the conclusion is the used jerrycans yielded by the hospital can beutilized to replace the existing cardboard safety boxes.
MetOda Penentuan Nitrit Trace di Lingkungan Perairan sebagai Kompleks 4-(4-Nitrobenzenao)-1-Aminonaftalen Secara Ekstraksi N-Amil Alkohol-Spektrofotometri Choirul Amri
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 1 No. 2 (2008): Februari
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

A study of extraction-spectrophotometric method for the determination of trace nitriteas 4-(4-nitrobenzenazo)-1-aminonaphthalene complex using n-amylalcohol as organic solventshas been conducted.Results of the study showed that extraction-spectrophotometric determination of nitriteusing n-amylalcohol had high sensitivity and low limit of detection. This method produced linearconcentration of 0.000 - 0.054 mg/l NO2—N; detection limit of 2.09x10-4 mg/l NO2—N; andsensitivity of 34.514 ± 0.398 absorbance unit per mg/l of NO2--N.
Modifikasi Aerator Menjadi Pompa Sampling Udara untuk Memenuhi Standar ABBM di Jurusan Kesehatan Lingkungan Poltekkes Depkes Yogyakarta Choirul Amri
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 2 No. 2 (2009): Februari
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

Air sampling pump represents the most important appliance in air quality monitoring. The Environmental Health Department of Polytechnic of Health, Yogyakarta has only two units of this appliance, meanwhile, the reference learningequipments standard is ten. This problem definitely do not support the practical learning process, so that it has to be resolved. As purchasing the new ones isnot an appropriate solution, a modification of aquarium air-pump (aerator) appliance becoming the sampling pump is a good effort because of its cheapness and feasibility. The objective of the study was reached by the following steps: 1) modifying the aerator as the air sampling pump, 2) validating the modified air sampling pump, and 3) studying the advantages and the weaknesses of the modified air sampling pump. The results of the study indicate that the aerator can be modified as air sampling pump, and the modified pump was precise and accurate (i.e. 1,00 ± 0,06 lpm, at a speed of 1 lpm). Furthermore, the modified pump has many advantages, that is: cheap, simple, light in weight, easy to use, easy to maintain, durable, and air-flow manageable.
Variasi Waktu Elektrolisis Menggunakan Elektroda Alumunium untuk Menurunkan COD Limbah "Batik Ayu" di Pijenan, Wijirejo, Pandak, Bantul Mia Nandha Sari; Tuntas Bagyono; Choirul Amri
Sanitasi: Jurnal Kesehatan Lingkungan Vol. 8 No. 1 (2016): Agustus
Publisher : Poltekkes Kemenkes Yogyakarta

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Abstract

The development of batik indutry gives both positive and negative impacts on people life. One of the negative effects is the waste yielded from the production process which is potential to pollute the environment. The results of preliminary survey show that the COD examination of the sewage of “Batik Ayu” industry, which is located in Pijenan, Wijirejo, Pandak, Bantul, at the outlet was 570 mg/L, meaning that the waste still exceeding the threshold regulated by the Decree of Governor of DIY No. 7 in 2010. The purpose of this research was to know the effect ofelectrolysis time using aluminium electrodes on COD reduction of that industry waste, by conducting an experiment with pre-test post-test with control group design. The waste water sample for this study were obtained by using time combination method and with quota sampling technique. There were three electrolysis times used, i.e. 1 hour, 2 hour and 3 hour, which were measured in 10 replications. The results of data analysis with using one way anova from SPSSfor Windows at 0,05 level of signifcance, indicate that the COD reductions produced from the treatment groups and control group were not different. However, if compared individually, the COD reduction of each electrolysis time is higher than that of the control group.
Co-Authors Adib Suyanto Afrida Nur Fauzia Aulia Rosiana Dewi Chichi Rodes Agustin Dwi Purwanti Juwita Eka Hapsari Lilik Hendrarini Lucky Herawati Mia Nandha Sari Mohammad Mirza Fauzie Novia Ardhya Maryana Nur Cholifah Puji Lestari Rashid Purnomo Sigid Sudaryanto Siti Hani Istiqomah Sri Muryani Tuntas Bagyono