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Chromium(VI) Heavy Metal Biosorption in Citarum River Water Sample Using Saccharomyces cerevisiae and Rhizopus oryzae Biomass Suci Rizki Nurul Aeni; Ni'matul Murtafi'ah; Handarini Handarini
Biogenesis: Jurnal Ilmiah Biologi Vol 8 No 2 (2020)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v8i2.12274

Abstract

The Citarum River was regarded as the World’s dirtiest river in 2018, characterized by a Basin situated adjacent to several textile and electroplating industries. Hexavalent chromium metal (Cr6+) is a toxic, carcinogenic heavy metal found in the wastes of these industries. Furthermore, biosorption with biological adsorbents, including Saccharomyces cerevisiae and Rhizopus oryzae, is an alternative method for treating water polluted with heavy metals. This study therefore aims to adsorb Cr6 + heavy metals from Citarum River water using S. cerevisiae and R. oryzae biomass in two locations: Nanjung and Pangauban, with various biomass concentration and stirring speeds. For this study, 0.25, 0.5, and 0.75 g of R. oryzae suspension, as well as 250, 500, and 750 µ of S. cerevisiae were used as adsorbent, while rotated at speeds of 250 rpm, 750 rpm and 1500 rpm. Subsequently, the Cr6 + metal content was measured using a UV-Vis spectrophotometer at a wavelength of 525 nm, and calculated based on a standard curve. The results showed S. cerevisiae and R. oryzae are able to reduce the levels of Cr6+ in Citarum river water. The most reduction was obtained with the highest concentration of the adsorbents, 750 µ for S. cerevisiae and 0.75 g for R. oryzae, at the speed of 1500 rpm. S. cerevisiae and R. oryzae have great potential as biosorbents for the in situ remediation of Citarum River contaminated with heavy metals.
PEMANFAATAN SEKAM PADI UNTUK PROSES BIOSORPSI Cr(VI) DALAM SAMPEL AIR SUNGAI CITARUM Lina Rahmawati; Dwi Safanida; Rismayani Solihat; Zahratul Zakiah; Suci Rizki Nurul Aeni
Jurnal Penelitian Saintek Vol 26, No 2 (2021)
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jps.v26i2.43813

Abstract

Pencemaran sungai Citarum diakibatkan oleh limbah industri yang dibuang langsung ke sungai. Salah satu komponen limbah cair yang sering ditemui dan bersifat sangat toksik yaitu logam berat kromium(VI). Penelitian ini bertujuan untuk mengetahui perbedaan kadar Cr(VI) dalam sampel air Sungai Citarum sebelum dan setelah dilakukan proses biosorpsi dengan menggunakan jumlah biosorben optimum sekam padi yang tidak diarangkan. Proses biosorpsi dilakukan dengan mengontakkan sampel air Sungai Citarum dengan biosorben sekam padi pada variasi berat sebesar 0,1; 0,5; 1,0; 1,5, dan 2,0 g. Hasil pengujian menunjukkan adanya penurunan kadar Cr(VI) setelah biosorpsi menggunakan biosorben sekam padi. Persentase penurunan kadar logam Cr(VI) tertinggi terjadi pada seluruh titik sungai dengan penambahan biosorben sekam padi sebanyak 1,5 g yaitu berturut-turu sebesar 41,18%; 62,65%; 55,07%; dan 56,43%. Pada penambahan jumlah biosorben sebanyak 2g mengalami penurunan kapasitas biosorpsi karena terjadi gangguan pembentukan logam-biosorben akibat adanya interfensi antar situs. Dari penelitian ini, dapat disimpulkan bahwa kapasitas biosorpsi meningkat sebanding dengan penambahan jumlah biosorben sekam padi dan optimum pada penambahan jumlah biosorben sekam padi sebanyak 1,5 g.UTILIZATION OF RICE HUSKS FOR BIOSORPTION PROCESS OF Cr(VI)IN CITARUM RIVER WATER SAMPLESThe Citarum River, as the river with the highest pollution level in Indonesia, certainly needs to be addressed immediately. The pollution is caused by industries which dump their waste directly into rivers. One of the components of liquid waste that is often encountered and is highly toxic is the heavy metal chromium(VI). This study aimed to determine the Cr(VI) levels in Citarum River water samples before and after the biosorption process using the optimum biosorbent of uncharred rice husks. The method used in this research is descriptive quantitative. The biosorption process was carried out by contacting Citarum River water samples with rice husk biosorbents at various amounts of 0.1 g; 0.5; 1.0; 1.5, and 2.0 g. The test results show a decrease in Cr(VI) levels after biosorption using rice husk biosorbent. The highest percentage decrease in Cr(VI) metal content occurred at all points of the river with 1.5 g of rice husk biosorbent, namely 41.18% respectively; 62.65%; 55.07%; and 56.43%. With the addition of 2g of biosorbent, the biosorption capacity decreased. There is interference with the formation of metal-biosorbent due to interference between sites. From this research, it can be concluded that the biosorption capacity increases with the addition of the rice husk biosorbent and the optimum with 1.5 g of rice husk biosorbent.
Peningkatan Motivasi Belajar Kimia Siswa Sekolah Menengah Menggunakan Metode Koligatif Kemas Kreatif (K3) Suci Rizki Nurul Aeni
EduChemia (Jurnal Kimia dan Pendidikan) Vol 1, No 1 (2016): Available Online in January 2016
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (154.504 KB) | DOI: 10.30870/educhemia.v1i1.441

Abstract

Abstract: This research is classroom action research at XII class of Madrasah Aliyah YAPIKA. The subject matter  properties of Colligative Solution conducted with K3 method (Koligatif Kemas Kreatif) to improve student’s learning motivation. Research has been conducted with the repetition of three times so that the study be completed for three years. Three phase of learning are preparation, implementation and evaluation. Preparation phase is done by teachers and students at home. The teacher is preparing the learning media there are games rules, cardboard spacecraft, question cards,  stopwatch, and a dice. Students learn the material properties of koligatif independently learning by themself using  the student hand book. Implementation of the learning is done through a number of methods, there are the story method, discussions and cooperative teamwork through creative games. The evaluation was direct observation methods. The observation sheets assessing of cognitive and affective aspects of students. Based on the results of observation showed that students can impact the content, focus attention and participate active in learning, supported by innovations that have been implemented.Keywords: Colligative properties, K3, MotivationAbstrak: Penelitian ini adalah penelitian tindakan kelas di Madrasah Aliyah YAPIKA Kurnia kelas XII yang mengkaji materi Sifat Koligatif Larutan melalui metode pembelajaran K3 (Koligatif Kemas Kreatif), sebagai cara untuk meningkatkan motivasi belajar siswa. Penelitian telah dilakukan dengan pengulangan sebanyak tiga kali. Pembelajaran yang ditempuh berupa tahap persiapan, pelaksanaan dan evaluasi. Tahap persiapan dilakukan oleh guru dan siswa di rumah. Guru mempersiapkan media pembelajaran berupa petunjuk games, karton wahana, question card, stopwatch, dan dadu. Siswa mempelajari materi sifat koligatif secara mandiri dengan cara belajar melalui buku pegangan siswa. Pelaksanaan pembelajaran dilakukan melalui sejumlah metode yaitu metode kisah, diskusi dan games kreatif melalui kerjasama tim secara kooperatif. Evaluasi dilakukan melalui metode observasi langsung. Lembar observasi tersebut menilai aspek kognitif dan aspek afektif siswa. Berdasarkan hasil observasi menunjukan bahwa pada umumnya siswa dapat menguasai konten, memusatkan perhatian dan berpartisipasi aktif pada pembelajaran ditunjang oleh inovasi yang telah dilaksanakan.Kata Kunci: Sifat koligatif, K3, Motivasi
HUBUNGAN DOSIS PENGGUNAAN PESTISIDA DENGAN KADAR KOLINESTERASE DALAM DARAH PETANI DESA PASIRHALANG Gita Nurfajriani; Suci Rizki Nurul Aeni
Jurnal Kesehatan Rajawali Vol 9 No 2 (2019): September
Publisher : Sekolah Tinggi Ilmu Kesehatan Rajawali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54350/jkr.v9i2.35

Abstract

Latar Belakang: Petani masih menjadi pekerjaan utama masyarakat Indonesia yaitu 38,97% dari keseluruhan populasi. Perkembangan di bidang pertanian tidak terlepas dari peran pestisida. Pestisida digunakan untuk membasmi hama yang dapat menurunkan produksi pertanian. Penggunaan dosis pestisida kerap kali tidak sesuai anjuran sehingga berdampak pada kesehatan petani.Tujuan Penelitian: Penelitian ini bertujuan untuk mengetahui hubungan dosis penggunaan pestisida dengan kadar kolinesterase dalam darah petani di Desa Pasirhalang Kabupaten Bandung Barat.Metode Penelitian: Penelitian menggunakan metode survei analitik cross sectional. Penelitian ini di lakukan pada 43 petani di Desa Pasirhalang Kabupaten Bandung Barat.Hasil Penelitian: Uji statistik menggunakan SPSS dengan menggunakan metode chi- squaire diperoleh nilai asymptotic significance (2-sided) yaitu 0,696 lebih besar dari nilai alpha (0,05).Simpulan: Berdasarkan hasil penelitian disimpulkan bahwa tidak terdapat hubungan yang signifikan antara dosis penggunaan pestisida dengan kadar kolinesterase dalam darah petani di Desa Pasirhalang.
BIOSORPSI LOGAM BERAT KROMIUM HEKSAVALEN (Cr6+) DALAM AIR SUNGAI CITARUM DESA CILAMPENI DENGAN MENGGUNAKAN BIOMASSA Saccharomyses cerevisiae DAN Rhizopus orizae Suci Rizki Nurul Aeni; Ira Prima Sari; Farhan Baehaki
Jurnal Kesehatan Rajawali Vol 9 No 2 (2019): September
Publisher : Sekolah Tinggi Ilmu Kesehatan Rajawali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54350/jkr.v9i2.38

Abstract

Latar belakang: Air merupakan sumber kehidupan bagi manusia, hewan dan biota lainnya. Kerusakan sungai Citarum sudah mengkhawatirkan. Hal ini mendorong pemerintah untuk bersinergi menyelaikan masalah pencemaran lingkungan di sungai Citarum melalui program Citarum Harum yang diharapkan dapat bersinergi dengan Perguruan Tinggi. Penelitian ini salah satu bentuk upaya partisipasi aktif dosen untuk ikut mensukseskan program pemerintah tersebut. Kromium heksavalen terdapat dalam air sungai Citarum, ini telah dapat dihilangkan dengan metode biosorpsi. Biosorpsi menggunakan adsorben biologis merupakan metode alternatif untuk dapat membersihkan logam berat dalam air sungai Citarum. Pemanfaatan Saccharomyses cerevisiae dan Rhizopus orizae sebagai biomaterial yang mampu menyerap logam berat.Tujuan Penelitian: Penelitian ini bertujuan untuk mengetahui penurunan logam berat setelah dilakukan proses adsorpsi logam berat Cr6+ dalam air sungai Citarum oleh biomassa S.cerevisiae dan R. orizae.Metode Penelitian: Metode yang digunakan pada penelitian ini yaitu melakukan uji Biosorpsi menggunakan Saccharomyses cerevisiae dan Rhizopus orizae skala Laboratorium. Jumlah S. cerevisiae yang diujikan pada penelitian ini adalah 250 μ, 500 μ dan 750 μ karena jamur yang digunakan dalam bentuk suspensi. Jumlah Rhizopus orizae yang digunakan adalah sebanyak 0,1 sampai dengan 2 g bentuk jamur ini berupa residu kering yang dihiangkan airnya melalui metode pemanasan open. Pemutaran biosorpsi menggunakan S.cerevisae diujikan dengan 250 rpm, 750 rpm dan 1500 rpm. Sedangkan untuk biosorpsi menggunakan R.orizae diujikan dengan kecepatan pengadukan 750 rpm. Kadar logam Cr6+ ditentukan melalui pengukuran dengan menggunakan instrumentasi Spektrofotometer UV-Vis panjang gelombang 525 nm.Hasil: Berdasarkan hasil pengujian tersebut memberikan kesimpulan bahwa S. cerevisiae dan Rhizopus orizae dapat menyerap logam Cr6+ dalam air sungai citarum dengan efektif. Penurunan tertinggi diperoleh pada penambahan adsorben terbanyak yaitu 750 μ untuk S. cerevisiae dan 1,6 g untuk R. orizae.Simpulan: Biomassa S. cerevisiae dan Rhizopus orizae dapat menurunkan kadar logam Cr6+ dalam air sungai dengan kecepatan pengadukan optimum yaitu 1500 rpm dan kosentrasi biomassa 750 μ untuk S. cerevisiae dan 1,6 g untuk R. orizae.
RELATIONSHIP OF ORGANIZATIONAL RESOURCES TO PRE-ANALYTIC ERRORS IN BANDUNG CITY PUSKESMAS LABORATORY Suci Rizki Nurul Aeni
Jurnal Kesehatan Rajawali Vol 12 No 1 (2022): Jurnal Kesehatan Rajawali
Publisher : Sekolah Tinggi Ilmu Kesehatan Rajawali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.726 KB) | DOI: 10.54350/jkr.v12i1.115

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Background. Lack of awareness about the role of laboratory services in many developing countries causes a lack of resources which is the main factor that affects the poor quality of laboratory services. Quality control aims to reduce or minimize errors that occur in the laboratory. The laboratory error ranged from 0.012-0.6%. Errors that occur in the pre-analytic stage are the largest, reaching 60-70% of the total laboratory errors. Pre-analytical error data from one of the Puskesmas laboratories in Bandung is 4.7%. Destination. To find out the description of organizational resources, description of pre-analytical errors and to determine the relationship of organizational resources to pre-analytical errors in the Bandung City Health Center Laboratory. Method. This research is a correlation analytic research. The research subjects were laboratory officers at the Bandung City Health Center Laboratory as many as 20 respondents. The resource variable was measured using a questionnaire and the pre-analytic error variable was derived from secondary data. Results. The results of this study indicate that the organizational resources at the Bandung City Health Center Laboratory are 65% quite good, 30% good and 5% not good. Pre-analytical errors in the Bandung City Health Center Laboratory, as much as 20% did not have pre-analytic errors, as many as 80% had pre-analytical errors. There is no relationship between organizational resources and pre-analytic errors in the Bandung City Health Center Laboratory (Sig. 2-tailed 0.422). Conclusion. Most (65%) of Bandung City Health Center Laboratories have good organizational resources. Pre-analytical errors in the Bandung City Health Center Laboratory varied between 0.10-27.03%. There is no relationship between organizational resource variables and pre-analytic errors in the Bandung City Health Center Laboratory.
PENGGUNAAN APD SAAT PENYEMPROTAN PESTISIDA DAN KADAR KOLINESTERASE DALAM DARAH PETANI DESA PASIRHALANG Gita Nur Fajriani; Suci Rizki Nurul Aeni; Dika Adhi Sriwiguna
Jurnal Media Analis Kesehatan Vol 10, No 2 (2019): JURNAL MEDIA ANALIS KESEHATAN
Publisher : Poltekkes Kemenkes Pakassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.188 KB) | DOI: 10.32382/mak.v10i2.1229

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Alat pelindung diri (APD) merupakan alat yang berfungsi untuk melindungi seseorang dengan cara mengisolasi sebagian atau seluruh tubuh dari potensi bahaya di tempat kerja. Petani merupakan salah satu pekerja yang membutuhkan APD dalam bekerja terutama saat menangani pestisida yang sifatnya beracun. Penelitian ini bertujuan untuk mengetahui hubungan antara penggunaan APD pada saat penyemprotan pestisida dengan kadar kolinesterase dalam darah petani di Desa Pasirhalang Kabupaten Bandung Barat. Penelitian menggunakan metode survei analitik dengan pendekatan survei analitik cross sectional. Sampel terdiri dari 43 orang petani. Data penggunaan APD diperoleh dari hasil wawancara semi terstruktur dan data kadar kolinesterasi didapatkan dari pemeriksaan langsung menggunakan alat Tintometer Kit. Analisis hubungan antarvariabel menggunakan analisis chi-square dengan bantuan SPSS versi 23. Hasil penelitian diperoleh 83,7% petani tidak mengenakan APD lengkap dan 16,3% mengenakan APD lengkap saat menyemprot pestisida. Berdasarkan pengukuran kadar kolinesterase, 14% petani mengalami keracunan ringan dan 86% normal. Hasil analisis chi-square menunjukkan nilai asym-sig 2-sided 0,017 (< α=0,05). Hal tersebut menunjukkan terdapat hubungan signifikan antara penggunaan APD lengkap dengan kadar kolinesterasi dalam darah petani di Desa Pasirhalang Kabupaten Bandung Barat.
HUBUNGAN MASA KERJA DENGAN KADAR KOLINESTERASE DALAM DARAH PETANI DI DESA PASIRHALANG, CISARUA, KABUPATEN BANDUNG BARAT Gita Nur Fajriani; Suci Rizki Nurul Aeni; Viky Cahyo Handoko
Klinikal Sains : Jurnal Analis Kesehatan Vol 7 No 2 (2019): Desember
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.969 KB) | DOI: 10.36341/klinikal_sains.v7i2.1035

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Development in agricultural field can not be separated from pesticides, used to eradicate pests. Continuely use by farmer caused poisoning, that can be measured by cholinesterase levels in blood. This research tried to identify correlation between work period and cholinesterase level in farmer’s blood. Research was carried using cross sectional method with 43 farmers from Desa Pasirhalang Kecamatan Cisarua, Kabupaten Bandung Barat. Farmer’s work periods were 51,2% that have work more than 15 years and 48,8% that have work less then 15 years. Poisoning levels were 14% severe poisoning (50 – <75% cholinesterase level) and 86% normal (75 - 100% cholinesterase levels). Correlational statistic using Spearman test showed that there was no significant correlation between work period and cholinesterase levels in farmer’s blood.
IDENTIFIKASI KANDUNGAN MERKURI (Hg) PADA KRIM PEMUTIH WAJAH YANG DIJUAL DI PASAR ANDIR DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM (SSA) Ani Haerani; Suci Rizki Nurul Aeni; Sapta Nisa Andini
Pharma Xplore : Jurnal Sains dan Ilmu Farmasi Vol 7 No 1 (2022): Pharma Xplore : Jurnal Sains dan Ilmu Farmasi
Publisher : Fakultas Farmasi Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jpx.v7i1.2330

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Cosmetics are materials or preparations intended for use on the outside of the human body, one of which is facial whitening cream. Face whitening cream is part of cosmetics that contains a mixture of chemicals that are efficacious to reduce skin hyperpigmentation so that the skin looks brighter. One of the ingredients that should not be used in facial whitening creams is mercury. The addition of mercury in facial whitening creams has been prohibited if it exceeds 1mg/kg because it is very dangerous. Mercury content in facial whitening cream can be analyzed using Atomic Absorption Spectrophotometry (AAS). The purpose of the study was to determine the mercury (Hg) and mercury (Hg) levels in facial whitening creams circulating in the Pasar Andir area of ​​Bandung. Research Methods: This study used a descriptive method. knowing the description of mercury (Hg) levels in whitening cream circulating in the Andir Bandung market area using the Atomic Absorption Spectrophotometer (AAS) method. Based on the research results from eleven samples of whitening cream, 5 samples of whitening cream were positive for mercury and 6 samples were negative for mercury. In sample 001 obtained mercury levels of (0.05 mg/Kg), sample 005 (1361.50 mg/Kg), sample 006 (0.43 mg/Kg), sample 007 (0.02 mg/Kg), sample 010 (0.12 mg/Kg), and samples that did not contain mercury were found in samples 002, 003, 004, 008, 009 and 011, namely 1mg/Kg, namely (< 0.005 mg/Kg). Sample 005 contained 1361.50 mg/Kg of Mercury, so the cream sample did not meet the requirements for distribution according to the provisions of the Head of the BPOM.
Analysis of Formalin Content in Fish Meatballs Traded in Lembang Market, West Bandung Regency Ani Haerani; Suci Rizki Nurul Aeni; Muhammad Iqbal Alfirmansyah
Jurnal Kesehatan Rajawali Vol 12 No 1 (2022): Jurnal Kesehatan Rajawali
Publisher : Sekolah Tinggi Ilmu Kesehatan Rajawali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.621 KB) | DOI: 10.54350/jkr.v12i1.134

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ABSTRACT Background: Meatballs are a type of food that is generally round in shape made from protein- containing mixed with tapioca flour found in Indonesian cuisine. Fish meatballs are easily decomposed, therefore they are preserved with a chemical substance, namely Formalin. Research objective: This study aims to determine the level of formalin in fish balls that are traded in Lembang Market, West Bandung Regency. Research Methods: The study used a descriptive design. The sample in this study amounted to 20 samples of fish balls and the sampling technique was simple random sampling. The test used is a qualitative test and a quantitative test. Results: A total of 1 positive sample used formalin, with an average level of 1.4592 ppm and as many as 19 negative samples did not use formalin. Conclusion: There are still fish balls at Lembang Market, West Bandung Regency which contain formaldehyde