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All Journal Pharmaciana: Jurnal Kefarmasian Journal of Biomedicine and Translational Research PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman Indonesian Journal of Chemistry Jurnal Kesmas dan Gizi (JKG) JURNAL FARMASIMED (JFM) Jurnal Dunia Farmasi JURNAL ANALIS LABORATORIUM MEDIK Pelita Masyarakat Jurnal Indah Sains dan Klinis FORTE JOURNAL Jurnal Farmanesia Jurnal Multidisiplin Madani (MUDIMA) JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal ABDIMAS MUTIARA Jurnal Indah Sains dan Klinis
Ahmad Hafizullah Ritonga
Institut Kesehatan Medistra Lubuk Pakam, Deli Serdang, Indonesia
Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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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.
Pemanfaatan Limbah Sekam Padi Sebagai Bahan Dasar Pembuatan Briket Arang Ahmad Hafizullah Ritonga; Denny Akbar Tanjung
Pelita Masyarakat Vol 1, No 1 (2019): Pelita Masyarakat, September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (710.289 KB) | DOI: 10.31289/pelitamasyarakat.v1i1.2720

Abstract

Rice husk waste has been thrown away and burned without any use, it has the potential to cause environmental pollution. This rice husk can actually be used, for manufacture of briquettes, but the lack of knowledge and skills of the people about processing rice husk waste into briquettes. The process of making briquettes does not require high technology and low cost. The training in manufacturing of charcoal briquettes is very useful which aims to make people in the area able to utilize rice husk waste to become a product of sustainable technology, namely charcoal briquettes which can be used as an alternative fuel instead of BBM, and also minimize the occurrence of environmental pollution. These activities include (1) socializing the using of rice husk into charcoal briquettes; (2) training to manufacture of chimneys to burn rice husk; (3) processing of rice husk into charcoal; (4) manufacturing charcoal briquettes; (5) applying the use of briquettes as fuel. These socialization and training activities have been successfully carried out in accordance with the planned activities that have been prepared, and received good reception from the local villagers seen from their presence and involvement in activities, and succeeded in providing special skills for local residents, especially farmers who were directly involved in making briquettes.
Influence of LLDPE-g-MA on Mechanical Properties, Degradation Performance and Water Absorption of Thermoplastic Sago Starch Blends Denny Akbar Tanjung; Novesar Jamarun; Syukri Arief; Hermansyah Aziz; Ahmad Hafizullah Ritonga; Boy isfa
Indonesian Journal of Chemistry Vol 22, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.68558

Abstract

The addition of LLDPE-g-MA into the compound of sago starch/LLDPE was studied to improve its mechanical, morphology, degradation performance, and water absorption properties. Thermoplastic Sago Starch was composed of a mixture of sago starch and glycerol. LLDPE-g-MA was prepared in varied concentrations based on the weight of TPSS (0, 6, 8, 10, and 14 wt.%) by reacting LLDPE, maleic anhydride, and benzoyl peroxide using an internal mixer. The results showed an increase in values obtained from mechanical tests, i.e., tensile strength was improved from 0.6902 to 3.6187 N/mm2 with the addition of LLDPE-g-MA at 10 wt.%. The addition also resulted in a 1.44% increment in elongation at break and 251 N/mm2 for Young's Modulus. The surface morphology of the sample demonstrated an excellent interfacial adhesion reaction or LLDPE dispersion over the entire surface of the matrix (starch). The water absorption test continued to decrease with the increase in the LLDPE-g-MA concentration from 53 wt.% (without LLDPE-g-MA) to 14 wt.% at 10 wt.% LLDPE-g-MA concentration. The degradation performance showed that the sample could be degraded under all three conditions for up to 30 days. 
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.
Aktivitas Antibakteri Ekstrak Etanol Kulit Markisa Ungu (Passiflora Edulis Sims) Terhadap Bakteri Propionibacterium Acnes Karnirius Harefa; Barita Aritonang; 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.v2i6.469

Abstract

Propionibacterium acnes is a gram-positive bacterium that causes acne. This study aimed to determine the antibacterial activity of the ethanolic extract of purple passion fruit peel (Passiflora edulis Sims) against Propionibacterium acnes bacteria. The method used to determine the antibacterial activity of the ethanolic extract of passion fruit peel was a paper disc (Kirby-Bauer test). Based on the results of phytochemical screening, the purple passion fruit peel simplicia powder contains flavonoid compounds, saponins, tannins, steroids, and triterpenoids that function as antimicrobials. Based on the antibacterial activity test, the purple passion fruit peel ethanol extract at concentrations of 5, 10, 15, and 20% effectively inhibited the growth of Propionibacterium acnes bacteria. This can be proven from the results of the diameter of the inhibition zone that there was an increase in antibacterial effectiveness along with the increase in the concentration of purple passion fruit peel extract in inhibiting the growth of Propionibacterium acnes bacteria, namely at a concentration of 5%, the average diameter of the inhibition zone was 14.9 mm, then at a concentration of 10% the average diameter of the inhibition zone is 15.3 mm, then at a concentration of 15% the average diameter of the inhibition zone is 17.2 mm, while at a maximum concentration of 20% the average diameter of the inhibition zone is 20.1 mm. The research results conclude that the purple passion fruit rind ethanol extract effectively inhibits the growth of Propionibacterium acnes bacteria at a concentration of 20% with an inhibition zone diameter of 20.1 mm.
MODIFIKASI ASPAL POLIMER MEMANFAATKAN KARET BAN BEKAS MENGGUNAKAN DIVENIL BENZENA DAN DIKUMIL PEROKSIDA MELALUI PROSES EKSTRUSI Ahmad Hafizullah Ritonga
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

Penelitian mengenai modifikasi aspal polimer yang memanfaatkan karet ban bekas (crumb rubber) dengan adanya divenil benzena (DVB) dan dikumil peroksida (DCP) melalui proses ekstrusi. Proses pembuatan aspal polimer tersebut dilakukan dengan cara mencampurkan aspal penetrasi 60/70 dengan karet SIR-20 yang ditambahkan dengan DVB sebagai agen kompatibilizer dan inisiator DCP kemudian dicampur bersama dengan agregat. Selanjutnya diproses dengan mengunakan ekstruder pada suhu 165 oC. Hasil uji sifat mekanis dengan kuat tekan menunjukkan bahwa komposisi yang lebih baik antara aspal dengan karet ban bekas tersebut yaitu (95:5), dimana dihasilkan kekuatan tekan maksimum sebesar 0,75 MPa. Hasil spektrum FTIR menunjukkan adanya serapan tajam dan kuat pada bilangan gelombang 698,21 cm-1 yang menunjukkan adanya gugus =C-H dari isoprena. Analisis morfologi dengan SEM memperlihatkan adanya perubahan permukaan setelah karet ban bekas tersebut ditambahkan ke dalam campuran aspal.
PEMANFAATAN CETIL TRIMETIL AMONIUM BROMIDA SEBAGAI FILLER DALAM PEMBUATAN KOMPOSIT KARET ALAM SIKLIS GRAFTING MALEAT ANHIDRAT / ORGANOBENTONIT Ahmad Hafizullah Ritonga; Barita Aritonang; Rima Anggeraini
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 2 No 1 (2018): Volume 2 Nomor 1 Tahun 2018
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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Abstract

Penelitian mengenai pemanfaatan Cetil Trimetil Amonium Bromida (CTAB) sebagai filler dalam pembuatan komposit Karet Alam Siklis (KAS) grafting Maleat Anhidrat (MA)/ Organobentonit telah dilakukan. Penelitian ini bertujuan untuk mengetahui efektivitas dari pemanfaatan CTAB yang dimodifikasi dengan bentonit membentuk organobentonit yang kemudian dicampurkan sebagai pengisi ke dalam KAS-g-MA menghasilkan komposit KAS-g-MA/Organo Bentonit. Penelitian ini dilakukan dengan melarutkan KAS terlebih dahulu dengan xylena pada suhu 45-55oC, lalu ditambahkan Maleat Anhidrat dengan perbandingan komposisi KAS:MA (70:30), selanjutnya ditambahkan dengan inisiator Benzoil Peroksida 5 phr dan variasi Bentonit-CTAB sambil tetap diaduk pada suhu yang sama selama +1 jam. Hasil yang diperoleh, kemudian dilakukan uji daya serap air yang menghasilkan nilai daya serap air yang paling minimum sebesar 2,2% pada variasi Bentonit-CTAB 3 phr. Hasil analisis dengan FTIR menunjukkan adanya puncak pada bilangan gelombang 1563,58 cm-1 dan 849 cm-1 yang menunjukkan bahwa Bentonit-CTAB telah tercampur dengan KAS-g-MA. Hasil morfologi dengan SEM menunjukkan adanya bahwa Bentonit-CTAB dalam KAS tersebut tercampur dengan homogen. Kata Kunci : Karet Alam Siklis, Maleat Anhidrat, Bentonit, Cetil Trimetil Amonium Bromida, Benzoil Peroksida.
EFEKTIVITAS ARANG AKTIF CANGKANG TELUR BEBEK DAN KULIT DURIAN SEBAGAI ADSORBEN UNTUK MENURUNKAN KADAR BILANGAN PEROKSIDA DAN ASAM LEMAK BEBAS PADA MINYAK GORENG BEKAS Barita Aritonang; Salomo Sijabat; Ahmad Hafizullah Ritonga
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 3 No 1 (2019): Volume 3 Nomor 1 Tahun 2019
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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Abstract

Penggunaan minyak goreng bekas secara berulang kali pada suhu tinggi akan menyebabkan kualitas minyak goreng dan nilai gizi makanan yang digoreng menurun sehingga mengakibatkan terbentuknya senyawa aldehida, keton, dan bau tengik, yang berdampak buruk bagi kesehatan tubuh. Untuk memurnikan dan meningkatkan kualitas minyak goreng bekas sehingga dapat digunakan kembali dengan aman dalam mengolah makanan dilakukan melalui proses adsorpsi dengan arang aktif dari cangkang telur bebek dan kulit durian. Proses pembuatan arang aktif dari cangkang telur bebek dan kulit duriantelah berhasil di sintesis melalui proses karbonisasi di dalam furnace pada suhu 600 °C selama 2jam. Penelitian ini bertujuan untuk menurunkan kadar bilangan peroksida dan asam lemak bebas pada minyak goreng bekas sebelum dan sesudah 3,4 dan 5 kali penggorengan dengan dan tanpa pemberian arang aktif dari cangkang telur bebek dan kulit durian. Penentuan kadar bilangan peroksida dilakukan dengan menggunakan metode titrasi iodometri sedangkan penentuan kadar asam lemak bebas dilakukan dengan metode titrasi asidi alkalimetri. Berdasarkan hasil penelitian yang telah dilakukan arang aktif dari cangkang telur bebek dan kulit duriansetelah diaktivasi dengan H3PO4 4N sudah memenuhi persyaratan yang ditetapkan oleh SNI No. 06-3730-1995, diperoleh kadar air 2,5 %, kadar abu 5 %, daya serap iod 746 mg/g, kadarkarbon terikat 86%. Kadar bilangan peroksida pada minyak goreng bekas sebelum dan sesudah 3, 4 dan 5 kali penggorengan dengan pemberian arang aktif sampel A kadarnya 0,0386 meq/kg, sampel B kadarnya 0,0414 meq/kg, sampel C kadarnya 0,0423 meq/kg, sampel D kadarnya 0,0429 meq/kg. Semua sampel masih memenuhi syarat SNI 01-3741-2002 yaitu 10 meq/kg O2. Kadar Asam Lemak Bebas pada minyak goreng bekas sebelum dan sesudah 3, 4 dan 5 kali penggorengan setelah pemberian arang aktif sampel A kadarnya 0,2186%, sampel B kadarnya 0,3571%, sampel C kadarnya 0,4826%, sampel D kadarnya 1,3845%. Semua sampel masih memenuhi syarat SNI 01-3741-2002. Abstract : Increased waste each year is very influential on environmental sustainability. For this reason, serious treatment is needed for this problem. The business that can be done is to utilize the waste into economically valuable material. In this case, a research was carried out on the utilization of beverage cans as raw material for alum production. In previous studies, aluminum content in beverage cans was found to reach 83.98%. After the study, it was found that aluminum content in alums made from beverage cans contained 4.57% better than commercial alums which were only 0.37%. The use of used cooking oil repeatedly at high temperatures will cause the quality of cooking oil and the nutritional value of fried foods to decrease, resulting in the formation of aldehydes, ketones, and rancid odors, which adversely affect the health of the body. To purify and improve the quality of used cooking oil so that it can be safely reused in food processing through an adsorption process with activated charcoal from duck eggshells and durian bark. The process of making activated charcoal from duck eggshells and thorn bark has been successfully synthesized through the carbonization process in the furnace at 600 ° C for 2 hours. This study aims to reduce the levels of peroxide and free fatty acids in used cooking oil before and after 3,4 and 5 frying pans with and without administration of activated charcoal from duck eggshells and durian bark. Determination of the level of peroxide number was carried out using the iodometric titration method while the determination of free fatty acid levels was carried out by the alkalimetry asidi titration method. Based on the results of research that has been carried out active charcoal from duck eggshell and durian bark after activation with H3PO4 4N has met the requirements set by SNI No. 06-3730-1995, obtained a moisture content of 2.5%, ash content of 5%, absorption of iodine 746 mg / g, carbon dioxide bound 86%. Levels of peroxide in used cooking oil before and after 3, 4 and 5 times frying by giving activated charcoal sample A levels are 0.0386 meq / kg, sample B levels are 0.0414 meq / kg, sample C levels are 0.0423 meq / kg , the sample D level was 0.0429 meq / kg. All samples still meet SNI 01-3741-2002 requirements, which are 10 meq / kg O2. Free Fatty Acid levels in used cooking oil before and after 3, 4 and 5 times frying after giving activated charcoal sample A levels are 0.2186%, sample B levels are 0.3571%, sample C levels are 0.4826%, sample D levels are 1 , 3845%. All samples still meet SNI 01-3741-2002 requirements. Keywords : Duck Egg Shells, Durian Bark, Active Charcoal, Free Fatty Acids, Peroxide Numbers.
REVIEW : PEMBUATAN NANOKOMPOSIT KARET ALAM / POLIOLEFIN / ORGANOBENTONIT Ahmad Hafizullah Ritonga; Novesar Jamarun
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol 3 No 2 (2019): Volume 3 Nomor 2 Tahun 2019
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

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Abstract

Nanocomposites can be made by mixing three types of materials, namely natural rubber, polyolefin, and organobentonite. This article review discusses deproteinization of natural rubber using the incubation method, the grafting process of anhydrous maleate on natural rubber, either by reflux technique or by using an internal mixer, modification of natural rubber with thermoplastic materials in the form of polyolefins (such as polyethylene or polystyrene), and bentonite filler which is nanoparticle size and organic material has been modified to form organobentonite. The blending technique used in obtaining nanocomposites can be carried out either by the reflux method or the melting phase method using an internal mixer, while still using additive materials such as compatibility and initiator. The results showed that chemical bond occurred between natural rubber (NR) and polyolefins using NR-g-MA compatibility and peroxide initiator, and also the presence of nanofiller organobentonite that was spread evenly in the natural rubber / polyolefin material had improved the mechanical properties of the nanocomposite.
Co-Authors Adiansyah Adiansyah Adiansyah, Adiansyah Ahmad Ghazali Ardiansyah Ardiansyah Aritonang, Barita Ariyanti Ariska Arniat Christian Telaumbanu Barito Aritonang Barus, Ester Julianti Karolina Boy Isfa Boy isfa Debi Meilani Denny Akbar Tanjung Denny Akbar Tanjung Denny Akbar Tanjung Dicky Yuswardi Wiratma Eka Margareta Sinaga Eka Margareth Eliza Arman Hasni Yaturramadhan Harahap Hendri Faisal Herlina Herlina H Herlina Herlina Hermansyah Aziz Hestina Ida Ayu Putu Sri Widnyani Imel Santika Irmayani Irmayani Jenny Ria Sihombing Karnirius Harefa Kesaktian Manurung Khairiah, Khairiah Kusumastuti, Melati Yulia Lely Masnita Liver Iman Putra Zai Maniur Arianto Melinda Sela Nengsi Handayanti Gaho Nova Florentina Nova Florentina Ambarwati Novesar Jamarun Novita Br Ginting Putri, Gusliani Eka Rahmad Gurusinga Rahmi Novita Yusuf Rima Anggeraini Rizqa Hafizhah Harahap Salomo Sijabat Samran, Samran Shofian Syarifuddin Siahaan, Enzo W.B Siahaan, Maniur Arianto Sinaga, Arman Bemby Sri Wulan, Sri Suarnikan Hulu Sumardi . Suprianto Suprianto Syukri Arief Ulda Andriani Sijabat Ulfayani Mayasari Wiya Elsa Fitri Yosy Cinthya Eriwaty Silalahi Yosy Cinthya Eriwaty Silalahi Yulidar Laila Safitri Zuhairiah Nasution, Zuhairiah