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Nova Florentina Ambarwati
Universitas Katolik Santo Thomas
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Analysis of risks factors on organophosphates poisoning on Chinese cabbage farmers in Semangat Village Kecamatan Merdeka Karo Regency Ambarwati, Nova Florentina; Wiratma, Dicky Yuswardi
Proceeding - Sari Mutiara Indonesia International Conference on Health Vol 1 No 1 (2018): Sari Mutiara Indonesia International Conference on Health
Publisher : Sari Mutiara Indonesia University Press

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Abstract

Pesticides of organophosphate type are mostly used on farming because they are easier to resolve in nature, but there was a possibility of high frequency that they were an agent that caused neurological diseases amongst farmers especially in developing countries. The factors influencing the occurrence of pesticide poisonings are internal and external factors, including age, knowledge level, work period as a sprayer, and spraying frequency. The purpose of this research is to analyze the risk factors that cause organophosphate pesticide poisonings on Chinese cabbage farmers in Semangat Village Karo Regency. The methods that are used in this research are with the observational method and cross-sectional approach, with the population of all Chinese cabbage farmers in Semangat Village Karo Regency. The taking of samples uses simple random sampling technique as much as 50 samples, the instruments that are used in this research is using Thermo Indiko for cholinesterase levels inspection and lists of questions for the farmers. The results show that there is no significant correlation between age and organophosphate pesticide poisoning on Chinese cabbage farmers (p > 0,05). Meanwhile, for other factors such as the relation between knowledge, the relation between work period as a sprayer, and the relation between spraying frequency with the level of pesticide poisoning show that there is a significant correlation (p < 0,05). Research results also show that the most dominant variable related to organophosphate pesticide poisoning on Chinese cabbage farmers is spraying frequency (p-value = 0,000 dan odds ratio = 7,707), which means that spraying frequency > 2 times a week has the opportunity of 7,707 bigger risks of organophosphate pesticide poisoning abnormality on Chinese cabbage farmers than with spraying frequency of ≤ 2 times a week
PEMBUATAN SABUN MADU DAN UJIAKTIVITAS TERHADAP Escherichia coli dan Staphylococcus aureus Nova Florentina Ambarwati; Erly Sitompul
Jurnal Farmanesia Vol 1 No 1 (2014): Jurnal Farmanesia
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

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Abstract

Madu adalah cairan manis yang berasal dari nectar tanaman yang diproses oleh lebah menjadi madu dan tersimpan dalam sel-sel sarang lebah. Sejak ribuan tahun yang lalu sampai sekarang ini, madu telah dikenal sebagai salah satu bahan makanan atau minuman alami yang mempunyai peranan penting dalam kehidupan. Dalam penelitian telah dilakukan pembuatan sabun madu. Kemudian diuji beberapa parameter sabun madu meliputi tinggi busa dan pH. Sabun madu tersebut di uji aktivitasnya terhadap bakteri dengan metode DifusiAgar, menggunakan cakram kertas dengan media pertumbuhan Mueller Hinton Agar (MHA) dan bakteri uji yang dipakai adalah Escherihcia coli dan Staphylococcus aureus. Hasil penelitian menunjukkan bahwa sabun madu memenuhi uji parameter sabun meliputi tinggi busa dan pH. Hasil uji aktivitas anti bakteri terhadap bakteri Escherihcia coli menunjukkan bahwa sabun madu dengan konsentrasi 5%, 10%, 20%, 30% dan 40% berturut- turut 5,93mm, 6,80mm, 7,10mm, 7,80mm, 8,40mm dengan blanko 9,96mm dan pada bakteri Staphylococcus aureus dengan konsentrasi 5%, 10%, 20%, 30% dan 40% berturut-turut 5,93mm, 6,60mm, 7,36mm, 7,96mm, 8,76mm dan blanko 9,76mm. Dari hasil penelitian dapat disimpulkan bahwa sabun madu mempunyai aktivitas antibakteri.
Pembuatan Sabun Padat Antiseptik Ekstrak Etanol Kulit Jeruk Lemon (Citrus Limon (L.) Burm. F.) Eka Margaretha Sinaga; Nova Florentina Ambarwati; Barita Aritonang; Ahmad Hafizullah Ritonga
Jurnal Multidisiplin Madani Vol. 2 No. 2 (2022): February 2022
Publisher : PT FORMOSA CENDEKIA GLOBAL

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Abstract

Lemon peel waste (Citrus limon (L.) Burm.F.) contains secondary metabolites that function as antibacterials, such as alkaloids, flavonoids, and triterpenoids. This study aims to determine the formulation of antiseptic solid soap and the antibacterial activity of the ethanolic extract of the lemon peel by the diffusion method. The results showed the best formula for making antiseptic solid soap with ethanolic extract of lemon peel based on the requirements of SNI 06-4085-1996 was at a concentration of F3 (15%), homogeneous, had a pH of 8.54-9.82, foam height was around 3.5-4.7 cm, and a strong inhibition zone of about 12.48 mm. The conclusion of this study is that lemon peel has antibacterial properties that can kill the growth of Staphylococcus aureus bacteria.
ANALISA TINGKAT KERACUNAN LOGAM BERAT Pb PADA TUKANG BECAK DAN PEDAGANG ASONGAN DI JALAN KAPTEN MUSLIM MEDAN Nova Florentina Ambarwati; Eka Margaretha Sinaga; Erdina Gultom
Klinikal Sains : Jurnal Analis Kesehatan Vol 9 No 1 (2021): Juni
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/klinikal_sains.v9i1.1426

Abstract

Lead (Pb) is one of dangerous heavy metals that is toxic for human bodies. Lead can be found in the air in the form of air pollution which is produced by the fuel of motor vehicles. According to WHO, in 1995, the level of lead inside the human body can be divided into three levels which are, low (<10ppm), moderate (10-20 ppm), otherwise high (>20ppm) according to the category of pollution. A pedicab driver and a street vendor who frequent the street will surely very often be exposed to vehicle fumes which contains lead (Pb). This experiment is aimed to find out the level of Pb in the hair of pedicab drivers and street vendors around Kapten Muslim Street, Medan. From the overall population is randomly taken each 4 (four) hair samples from pedicab drivers and street vendors, and then continued with an examination using AAS (Atomic Absorption Spectrophotometer). From the result of the experiment, overall obtained that 1 (one) out of the rest is within the high level of toxicity (20,138 ppm), and then 2 (two) within the moderate level of toxicity (10,697 - 16,69 ppm), and 5 (five) others within the low level of toxicity (0,862≈4,533 ppm). This shows that almost all pedicab drivers and street vendors around the Kapten Muslim Street, Medan are already poisoned with heavy metal, Pb, inside their bodies.
PEMBUATAN SABUN PADAT ANTISEPTIK EKSTRAK ETANOL KULIT JERUK LEMON (Citrus limon (L.) Burm. f.) Eka Margaretha Sinaga; Barita Aritonang; Nova Florentina Ambarwati; Ahmad Hafizullah Ritonga
Journal of Indah Science and Clinic Vol. 2 No. 3 (2021)
Publisher : LPPM STIKes Indah Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/jisk.v2i3.34

Abstract

One of the herbal plants with antibacterial properties that it can use in solid antiseptic soap is lemon peel (Citrus limon (L.) Burm.F.). This study aims to determine the optimum composition of antiseptic solid soap preparations from the ethanolic extract of lemon peel based on the requirements set by SNI 06-4085-1996 and the antibacterial activity test. The antibacterial activity test was carried out by the good method. Examination of Simplicia characteristics was carried out by phytochemical screening test. The antiseptic solid soap preparation was performed by organoleptic test, pH test, homogeneity test, high foam test, and antibacterial activity test. The concentration variations of antiseptic solid soap preparations were F1(5%), F2(10%), and F3(15%). Based on the results of research that has been carried out, the results of phytochemical screening tests for lemon peels (Citrus limon (L.) Burm.F.) contain secondary metabolites, namely alkaloids, flavonoids, and triterpenoids that function as antibacterial. Antiseptic solid soap made from ethanolic extract of lemon peel has met the requirements set by SNI 06-4085-1996, namely a solid and homogeneous soap with a lemon scent with a pH of 8.71-10.52, high foam 4.7-4.9 cm, as well as free alkali in a safe condition against the skin. Based on the results of the antibacterial activity test of solid antiseptic soap, the ethanolic extract of lemon peel (Citrus limon (L.) Burm.F.) can inhibit the growth of Staphylococcus aureus bacteria. At a concentration of F1(5%) has a zone of moderate inhibition of 10.26 mm; at concentration F2(10%) has a strong inhibition zone of 11.78 mm; at the concentration of F3(15%) has a strong inhibition zone of 12.57 mm. Lemon peel extract can be formulated into a solid antiseptic soap with an optimum concentration of F3 (15%).
Sintesis dan Karakterisasi Arang Aktif Dari Kulit Salak Sebagai Adsorben Terhadap Kadar BOD, COD dan TSS Pada Limbah Cair Industri Tekstil Barita Aritonang; Nova Florentina Ambarwati; Eka Margaretha Sinaga; Ahmad Hafizullah Ritonga
Jurnal Multidisiplin Madani Vol. 2 No. 6 (2022): June 2022
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/mudima.v2i6.441

Abstract

Textile liquid waste contains organic compounds and suspended solids such as BOD, COD, and TSS, which can cause environmental pollution. This study aims to determine the levels of BOD, COD, and TSS in textile wastewater using activated charcoal from the skin of salak before and after activation with phosphoric acid (H3PO4) at a concentration of 6%.The research results that have been carried out, on the making of activated charcoal from the skin of salak have been successfully carried out and meet the requirements of SNI 06-3730-1995, obtaining 2.4% water content, 2.3% ash content, and 476 mg/L iodine absorption. FT-IR spectrum analysis activated charcoal from the skin of salak has an O-H hydroxyl group at the peak of 3817 cm-1, C=O carbonyl group at 1713 cm-1, and C-O ether group at 1175 cm-1. FT-IR spectrum analysis activated charcoal from the skin of salak has O-H hydroxyl group at the peak of 3817 cm-1, C=O carbonyl group at 1713 cm-1, and C-O ether group at 1175 cm-1. Based on SEM analysis, activated charcoal from activated skin of salak has larger pores and surface area than before activation. Based on atomic absorption spectrophotometry analysis of textile wastewater without the addition of activated charcoal, the levels of BOD were 480 mg/L, COD 650 mg/L, and TSS 470 mg/L. After the addition of unactivated activated charcoal, the levels of BOD were 120 mg/L, COD 150 mg/L, and TSS 140 mg/L. After the addition of activated charcoal, BOD levels were 60 mg/L, COD 80 mg/L, and TSS 95 mg/L.This study concludes that activated charcoal from the skin of salak can reduce, levels of BOD, COD, and TSS in textile waste and has met the requirements set out in the Regulation of the Minister of the Environment of the Republic of Indonesia Number 5 of 2014.
PENGARUH PEMANFAATAN BUAH JERUK NIPIS (Citrus aurantifolia Swingle) SEBAGAI CHELATOR LOGAM TIMBAL (Pb) DALAM KERANG BULU (Anadara antiquata) Nova Florentina Ambarwati; Yana Sinamo
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 1 No 1 (2017): Volume 1 Nomor 1 Tahun 2017
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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Abstract

Kerang bulu (Anadara antiquata) merupakan salah satu jenis kerang yang hidup di dasar laut. Logam seperti Timbal (Pb) dapat masuk ke dalam tubuh kerang buluh melalui akumulasi dari pencemaran limbah industri dan kapal-kapal, karena habitat kerang terdapat pada dasar laut yang berpasir dan berlumpur. Efek Timbal (Pb) dapat menyebabkan penurunan tingkat IQ pada anak-anak, mempengaruhi sistem hemoglobin, sistem syaraf, serta menyebabkan kematian pada dosis tinggi.Untuk itu, masyarakat perlu memikirkan bagaimana cara untuk menurunkan kadar Pb baik pada sumbernya maupun pada tubuh. Salah satu cara sederhana mungkin dengan perlakuan terhadap buah jeruk nipis (Citrus aurantifolia swingle) karena adanya kandungan asam sitrat di dalamnya. Penelitian ini bertujuan untuk mengetahui apakah kadar Pb pada kerang buluh di daerah Aceh Singkil memenuhi SNI No.7387 Tahun 2009 yaitu <1,5 ppm, serta untuk mengetahui apakah buah jeruk nipis dapat menurunkan kadar Pb. Penelitian ini bersifat eksperimen dengan pendekatan cross sectional, dengan mengambil sampel kerang bulu di Tempat Pelelangan Ikan (TPI) Aceh Singkil. Metode yang dilakukan dalam penelitian ini adalah Spektrofotometer Serapan Atom yang dilakukan di Laboratorium Balai Riset dan Standarisasi Industri (Baristand Industri) Medan. Dari hasil penelitian tersebut diperoleh bahwa kadar Pb pada kerang buluh sebelum perlakuan sebesar 0,0036. Dari hasil yang diperoleh ternyata terjadi penurunan kadar Pb pada waktu rendaman 15, 30, dan 60 menit. Diperoleh persen penurunan yang paling besar adalah 33,33%. Dilakukannya eksperimen tersebut, ternyata jeruk nipis (Citrus aurantifolia swingle) mampu menurunkan kadar Pb pada kerang bulu. Disarankan kepada peneliti selanjutnya untuk lebih mengupayakan cara agar penurunan kadar Pb dalam kerang benar-benar bisa berkurang secara total dan dapat meneliti kadar logam lainnya seperti Cd, Hg, As dan logam lainnya pada kerang bulu dan biota laut lainnya.
ANALISIS PERBANDINGAN KADAR LOGAM CADMIUM PADA PEROKOK AKTIF DAN PEROKOK PASIF DI DESA UJUNG BANDAR KECAMATAN BARUS JAHE KABUPATEN KARO Nova Florentina Ambarwati; Eka Margaretha Sinaga; Tiara Rajagukguk
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 4 No 2 (2020): Volume 4 Nomor 2 Tahun 2020
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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Abstract

Merokok adalah kegiatan yang akrab bagi kita dalam kehidupan sehari-hari. Asap rokok yang disebabkan oleh perokok aktif dapat membahayakan kesehatan para perokok itu sendiri dan perokok pasif. Cadmium (Cd) adalah salah satu senyawa logam yang terkandung dalam tembakau, semakin tinggi tingkat dan semakin lama paparan, semakin besar efek toksik yang akan diberikan. Kadmium logam (Cd) dapat menyebabkan gangguan dan bahkan dapat menyebabkan kerusakan pada sistem yang berfungsi ginjal. Kemudian sisa metabolisme diekskresikan melalui urin. Penelitian ini bertujuan untuk mengetahui rasio kadar kadmium (Cd) dalam urine perokok aktif dan pasif. Jenis penelitian ini adalah penelitian observasional deskriptif dengan metode survei yang bertujuan untuk mengetahui kadar Cd dalam urine aktif dan pasif merokok. Penentuan kadar kadmium (Cd) dengan metode SSA (Atomic Absorption Spectrophotometry). Berdasarkan urin pada perokok aktif terdeteksi kandungan Cd berkisar 0.006 sampai 0.007 ppm. logam cadmium (Cd) kandungan kadmium (Cd) terendah adalah 0.006 ppm. dalam urin perokok pasif, kandungan kadmium (Cd) terendah adalah 0.008 ppm dan tingkat kadmium tertinggi adalah 0.009 ppm. Kemudian diuji Mann Whitney Test dimana nilainya 0,028 kemudian p> 0,05 sehingga Ho diterima dan dapat dinyatakan bahwa tidak ada perbedaan kadar logam cadmium (Cd) dalam urin perokok aktif dan toko pasif didesa ujung Bandar kecamatan barus jahe kabupaten karo
PENGARUH EFIKASI DIRI DAN PENAMPILAN TUGAS TERHADAP KEPUASAAN KERJA GURU DI SMP NEGERI KECAMATAN PADEMANGAN JAKARTA UTARA Irmina Pinem; Nova Florentina Ambarwati; Jona Joakim Pinem; Heka Maya Sari Br Sembiring
HISTOGRAM: Jurnal Pendidikan Matematika Vol 6, No 2 (2022): Histogram
Publisher : STKIP Andi Matappa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31100/histogram.v6i2.2408

Abstract

Tujuan dari penelitian ini adalah untuk kemampuan diri sendiri dan kinerja tugas serta kinerja tugas guru kepuasan kerja di kecamatan pademangan Jakarta Utara. Metodologi penelitian adalah survei yang dipilih dengan teknik simple random sampling. Analisis dan interpretasi data menunjukkan bahwa (1) efikasi diri berpengaruh langsung positif terhadap kepuasan kerja, (2) kinerja tugas berpengaruh langsung positif terhadap kepuasan kerja, (3) kemampuan diri sendiri berpengaruh positif terhadap penampilan tugas.
Students’ Writing Error in Parts of Speech: A Case Study of EFL Students Meikardo Samuel Prayuda; Juliana Juliana; Nova Florentina Ambarwati; Fiber Yun Almanda Ginting; Candra Ronitua Gultom
Jurnal Educatio FKIP UNMA Vol. 9 No. 2 (2023): April-June
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/educatio.v9i2.4419

Abstract

This research was intended to see the phenomena of students capability in producing products of their language target which was English. This was purposed to observe and to find their errors in producing writings. The result then could be used as reflection to improve their skill in writing specifically in parts of speech. From the analysis, it was found out that the errors found in the students writing were dominated by noun with the percentage of 22%, followed by pronoun 19%, adjective 17%, verb 14%, conjunction 14%, adverb 8%, preposition 6%, and lastly interjection 0.2 %. The data then analysed by considering the analysis in error analysis and found out that 33% error in misordering, 23% error in omission, 22% error in misformation, and 22% error in addition. This research showed that error which appear the most was dominated by misordering error and noun in the aspect of parts of speech. The possible cause of how the errors could happened was because of the influence of intralingual transfer. Students cannot differentiate between their experience in using grammar of source language and target language. Thus, the product of target language that provided by the students met errors.
Co-Authors Aaron Loh Abi, Antonius Remigius Adelia, Ririn Agnes Monica Br Tarigan Ahmad Hafizullah Ritonga Aisyah, Tuti Angelina Rajagukguk, Nadia Anton Sitepu Antonius Remigius Abi Aritonang, Barita Betta Leli Cahaya Pardede Bogor Lumbanraja Br Ginting, Emi Yani Br Saragih, Marpaung Artianna Christin Celine Dwi Stephani Purba Charmelita Aprilianti Saragi Damaris Nurhayati Simanullang Darinda Sofia Tanjung Daulay, Mita Suryani Dicky Yuswardi Wiratma Dinesh Elango Dongoran, Jhonas Dyan Wulan Sari Hs Egry Winda Nababan Eka Magareta Sinaga Eka Margareta Sinaga Erdina Gultom Erly Sitompul Ester Helena Sibagariang Ester Julinda Simarmata, Ester Julinda Febriella Happy Gaol, Endang Lumban Gaol, Rumiris Lumban Ginting, Indah Br Girsang, Gresia Novelita Godlif Sianipar Gregorius, Binsar Gulo, Inne Kristina Gultom, Candra Ronitua Gultom, Erdiana Hasibuan, Gelora Heka Maya Sari Sembiring Henny Saida Flora Ignasius Aritonang Imelda Sihombing Irmina Pinem Jhonas Dongoran Jhonas Dongorangan Jona Joakim Pinem Juliana Juliana Juliana Juliana Kristina Sianturi, Nelli Laura Elfrida Barus Lumban Gaol, Endang Lumban Raja , Bogor Mahyuni Mahyuni Manalu, Madianti Marissa Sibuea, Devi Marpaung, Irene Fristda Martina Zebua Maya Sari Br Sembiring, Heka Maya MEIKARDO SAMUEL PRAYUDA Ngalem Misa Br Tarigan Noveria Br.Tarigan Nurul Aflah Panjaitan, Juliana Pasaribu, Finela Sovia Pinem, Irmina Raja, Bogor Lumban Rani Enzelyna Pasaribu Rani Wijaya Siringoringo Reflina Sinaga Regina Sipayung Remigius Abi, Antonius Retno Dwi Suyanti Ribka Kariani Br Sembiring Rikwan Gregorius Barus Sari, Heka Maya Sembiring, Beta Perbina Br Sembiring, Ribka Kariani Sembiring, Windi Sari Br Siahaan, M.Si, Maniur Arianto Sianturi, Artha Sri Kartika Sianturi, Nelli Kristina Siburian, Adi Susanto Siburian, Esther Evi Rianty Sihombing, Imelda Silaban, Patri Silalahi, Veni Simanihuruk, Endang Ernawati Simare-Mare, Saguruh Melky Sedek Simbolon, Chori Sinaga, Mita Kristina Sinaga, Nirolita F. Sinaga, Refila Sinurat, Tria Lestari Sipayung, Regina Frederika Sitanggang, Robertus Sitepu, Mika Pepayosa Sitorus, Regina Sri Ayu Wahyuni Situmorang Tarigan, Paska Sriulina Tiara Rajagukguk Tiara Rajagukguk Winda Adisty Ginting Yana Sinamo Zendrato, Agusman