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All Journal Jurnal Teknik Kimia USU JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Kimia Mulawarman Science and Technology Indonesia Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Indonesian Journal of Chemical Science and Technology Jurnal Teknik Kimia USU Jurnal ABDIMAS MUTIARA

Indra Masmur

Departemen Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Sumatera Utara, Medan, Sumatera Utara

Author-ID : 3114046

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Social Sciences Other

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Optimasi dan Sintesis Selulosa Dialdehid Berbasis Limbah Tandan Kosong Kelapa Sawit Sitinjak, Elvri Melliaty; Masmur, Indra; Shuwanto, Hardy; Dina, Sari Farah; Hutajulu, Poltak Evencus; Saragih, Gimelliya; Siahaan, Immanuel; Damanik, Fadhila Natania; Doloksaribu, Rahel Argana
Jurnal Teknik Kimia USU Vol. 14 No. 2 (2025): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v14i2.20686

Empty Fruit Bunches of Oil Palm (EFB) represent one of the most problematic biomass wastes in Indonesia due to their massive volume, inefficient management, and underutilization of their chemical potential, leading to significant environmental, economic, and technical impacts. The degradation or processing of such large-scale waste generally requires a long period of time. This study focuses on converting the cellulose content in EFB into dialdehyde cellulose (DAC), which can be applied as a wet strength agent. The aim is to reduce EFB waste by isolating cellulose from EFB biomass and subsequently converting it into DAC, which can be utilized as a wet strength additive in paper or tissue products. The oxidation of EFB cellulose into DAC was optimized using sodium periodate (NaIO₄) as the oxidizing agent, with varying reaction times of 3, 6, and 9 hours. The synthesized DAC was qualitatively analyzed using the Fehling’s test and solubility observations, followed by functional group identification via FTIR and morphological characterization using SEM. Among the samples, DAC-6 exhibited the most optimal characteristics, with a degree of oxidation reaching 82.1% and a carbonyl content of 52.8%. FTIR analysis confirmed the presence of carbonyl functional groups in all DAC samples, indicating successful oxidation of hydroxyl groups in cellulose. DAC-6 showed the most prominent carbonyl absorption peak at a wavenumber of 1748 cm⁻¹.

The Utilization of Chitosan from Maggot (Hermetia illucens) Exuvia as Edible Coating for Tomatoes (Lycopersicon esculentum) and Edible Film with the Addition of Honey as an Antibacterial Agent Daniel; Sitorus, Saibun; Pasaribu, Subur P.; Marliana, Eva; Hairani, Rita; Ruga, Ritbey; Purba, Ritson; Saleh, Chairul; Pratiwi, Djihan Ryn; Magdaleni, Agustina Rahayu; Masmur, Indra; Masmur, Hestina
Science and Technology Indonesia Vol. 10 No. 4 (2025): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.4.1232-1241

The use of chitosan from maggot (Hermetia illucens) exuvia as an edible coating for tomatoes (Lycopersicon esculentum) and an edible film with honey added as an antibacterial agent was investigated. This study aimed to determine the yield of chitosan from black soldier fly (BSF, Hermetia illucens) maggot exuviae as an edible coating. The chitosan was produced from chitin by deacetylation, and its effect on the weight loss and vitamin C levels of tomatoes for 7 days after treatment was investigated. The chitosan coating was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy. The antibacterial activity was evaluated using a disk diffusion method. The result showed that by deacetylation, conversion of chitin produced chitosan with a yield of 72% and a deacetylation degree of 75.05%. The chitosan coating significantly affected the weight loss of tomatoes, with the best concentration being 2%. However, the treatment did not significantly affect the decrease in vitamin C levels. The edible chitosan film from BSF maggot exuviae with added honey had a thickness, water content, and water vapor transmission rate of 0.156 mm, 16.9913%, and 30.45 g/m2/24 hours, respectively. SEM characterization showed a relatively dense surface structure, which was slightly smooth and porous. Regarding antibacterial activity, the edible chitosan film inhibited Staphylococcus aureus with an inhibition zone of 10.37 mm; however, Escherichia coli was not inhibited. These results suggest that chitosan from BSF maggot exuviae has potential as an effective edible coating for reducing weight loss in tomatoes despite showing limited antibacterial properties.

Empowerment of Haranggaol Subdistrict community, Haranggaol Horison District, Simalungun Regency, North Sumatra in efforts to improve local wisdom Ritonga, Fajar Utama; Siagian, Matias; Masmur, Indra
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

The Collaborative Work Lecture with BKS West PTN is one of the community service programs conducted by 20 state universities where the University of North Sumatra is the host of the program. In the KKN program, we realize one of the tri dharma of higher education namely community empowerment. The aim of this program is that students are expected to gain learning experience through involvement in the community who directly find, formulate, solve and overcome problems that are in the field. The Community Service Program that we carry out is devoted to the community in Haranggaol Village, Haraggaol Horison District, Simalungun Regency, North Sumatra Province with the program "Community Empowerment of the Haranggaol Village, Haranggaol Horison District, Simalungun Regency, North Sumatra Province in an Effort to Improve Local Wisdom and Ecotourism in the Region of North Sumatra. This program is expected to be able to contribute to the community in the form of helping improve basic facilities and infrastructure as well as increasing the human resources available in the Haranggaol Basin so that local wisdom and ecotourism are of higher quality and help local communities maintain natural resources so that they are sustainable

Empowerment of Food Traders Regarding Hazardous Additives for Food Towards Healthy Natural Food Products in Tanjung Morawa District Ginting, Adil; Tarigan, Lina; Ginting, Mimpin; Perangin-angin, Sabarmin; Masmur, Indra
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 2 (2021): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Food safety issues have become a global concern because hundreds of millions of people suffer from diseases due to contaminated food. Food poisoning cases in Indonesia continue to increase from year to year. In 2013, the POM reported that there were 48 outbreaks (KLB) of food poisoning from 34 provinces in Indonesia. In Tanjung Morawa Subdistrict, especially Mardisan Village, there are many food vendors, ranging from food for breakfast, various snacks during the day to night. In this area there are also many flower sellers, so the village is always busy with flower buyers. In addition to buying flowers, they generally also need food and drinks so that food vendors in this area are also growing. However, very often these food traders do not pay attention to food safety requirements because they are tempted by the maximum profit. For this reason, dedication is carried out to increase the knowledge and skills of traders in processing healthy and natural foods without using additives that are harmful to health. Training was carried out on increasing partners' knowledge in the use of additives permitted by the Minister of Health as an effort to reduce the use of additives that are harmful to health. The training was carried out by using the lecture method, discussion by giving lieaflead to food sellers. The food vendors are very enthusiastic about participating in the training with many questions from the participants about allowed and not allowed food substances. The traders promised to implement natural and healthy food processing methods without using additives that are harmful to health. The head of the food merchant group will monitor the food safety in this area so that natural and healthy food is still sold in Mardisan.

Community Empowerment Through Improving Weaving Skills to Support the Achievement of Sustainable Development Goals (SDGs) Barus, Diana Alemin; Gustanto; Masmur, Indra; Tua Raja Simbolon
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 10 No. 1 (2025): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v10i1.20079

Sustainable economic growth is a challenge for Indonesia today. The Universitas Sumatera Utara in Strengthening SDGs promotes decent and inclusive employment opportunities, and enhances sustainable economic growth in Indonesia by working with companies, civil society organisations, and governments to create an environment that supports inclusive economic development and provides fair access to employment opportunities. The community service team through the community service institution of the Universitas Sumatera Utara plays an active role in the success of the SDGs by carrying out community service with MSME partner Kilang Tenun Sinaga. The results of the team's observations that Kilang Tenun Sinaga MSMEs have such important problems, namely the difficulty of finding employees with skilled weaving skills that cause a lack of weaving production processes that can be fulfilled when ordered, lack of employees who can increase production results, unable to expand by opening new promotional outlets while promoting production results. The solution presented by the team is to carry out community empowerment through improving weaving skills so that they will get the expected employees. This community service team with partners also through this service aims to continue weaving skills, especially ulos motifs, to become part of the world heritage in the future. From this solution, employees also get decent work and improve the community's economy in accordance with SDGs goal no. 8, namely decent work and economic growth.

Effect of Chain Length on Fatty Alcohol Sulfation using SO3-DMF Sitinjak, Elvri Melliaty; Masmur, Indra; Tarigan, Dedi; Anggini, Cindy; Simbolon, Emma Juli Anamasta; Simatupang, Endang; Pane, Yulia Ratu; Simorangkir, Murniaty; Nurfajriani, Nurfajriani
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.49376

The fatty alcohols C8, C10, C16 and C18 were used as raw materials for the sulfation reaction using the SO3-DMF complex to study the ratio of carbon chains. The first step is to prepare the SO3-DMF complex, by reacting SO3 gas into DMF at a temperature of 0-4 0C with a reaction time of 3 hours, then sulfation is carried out at 100 0C for 5 hours on C8, C10, C16 and C18. Tests were carried out on the results of sulfation with an FT-IR Spectrophotometer. Surface tension, foam stability and yield calculations. From the sulfation results, the yield results were respectively 83%, 81%, 68% and 61% then the results from the surface tension analysis were 35.3, dyne/cm, 30.3 dyne/cm, 29.4 dyne/cm and 33.6 dyne/cm and foam stability analysis of 0.2 cm, 0.8 cm, 0.7 cm and 1 cm. Based on the surface tension reduction value, palmityl alcohol is the best raw material for making surfactants.

Synthesis of Sodium Myristyl Sulfate with Myristyl Alcohol Sulfation using SO3-DMF Sitinjak, Elvri Melliaty; Masmur, Indra; Tarigan, Dedi; Anggini, Cindy; Simbolon, Emma Juli Anamasta; Simatupang, Endang; Pane, Yulia Ratu; Simorangkir, Murniaty; Nurfajriani, Nurfajriani
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 6 No. 2 (2023): JULY 2023
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v6i2.49378

The sulfation reaction between myristyl alcohol and the SO3-DMF complex has been successfully carried out to produce sodium myristyl sulfate. Formation of the SO3-DMF complex by reacting DMF and SO3 gas obtained from the reaction of phosphorus pentaoxide and H2SO4. The variables studied were the time of formation of the complex, the time and temperature of sulfation and the concentration of NaOH at neutralization. The results of myristyl alcohol sulfation with SO3-DMF were tested by FTIR spectroscopic analysis, surface tension test, and foam stability test. The formation time of the SO3- DMF complex of 5 hours is the result of the highest surface tension reduction and the most optimal foam stability. The results of the foam stability test analysis showed the highest value at 80oC with a foam stability of 0.5 cm. The best result of sulfation neutralized with 40% NaOH solution was able to reduce the surface tension value and has foam stability up to 66% with a decrease in foam height of 0.3 cm

Co-Authors Anggini, Cindy Bramwell Sitompul Chairul Saleh Clairine Clairine Damanik, Fadhila Natania Daniel Diana Alemin Barus, Diana Alemin Djihan Ryn Pratiwi, Djihan Ryn Doloksaribu, Rahel Argana Elvri Melliaty Sitinjak Elvri Melliaty Sitinjak Erdiana Gultom Eva Marliana, Eva Fajar Utama Ritonga Ginting, Adil Gustanto Hairani, Rita Herliana Herliana Hestina Hutajulu, Poltak Evencus Jumadi Septian Sihombing Lina Tarigan Magdaleni, Agustina Rahayu Masmur, Hestina Matias Siagian Mega Evelin Rajagukguk Mimpin Ginting Mimpin Ginting, Mimpin Murniaty Simorangkir Nurfajriani, Nurfajriani Pane, Yulia Ratu Perangin-angin, Sabarmin Riah Ukur Ginting, Riah Ukur Ritonga, Fajar Utama Ritson Purba, Ritson RR. Ella Evrita Hestiandari Ruga, Ritbey Saibun Sitorus Sajaratud Dur Saragih, Gimelliya Sari Farah Dina Shuwanto, Hardy Siahaan, Immanuel Simatupang, Endang Simbolon, Emma Juli Anamasta Sitinjak, Elvri Melliaty Subur P Pasaribu Tarigan, Dedi Teti Purwita Sari Tua Raja Simbolon

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