Nisaul Fadilah Dalimunthe

Nisaul Fadilah Dalimunthe

Universitas Sumatera Utara

H-index: 4

Asia-Indonesia

About Nisaul Fadilah Dalimunthe

Nisaul Fadilah Dalimunthe, With an exceptional h-index of 4 and a recent h-index of 4 (since 2020), a distinguished researcher at Universitas Sumatera Utara, specializes in the field of Material.

His recent articles reflect a diverse array of research interests and contributions to the field:

Karakteristik Sifat Fisik Membran Elektrolit Polimer Berbasis Kitosan Larva Black Soldier Fly/Polivinil Alkohol/Poliakrilonitril dengan Penambahan Ammonium Klorida

The effect of glycerol and sago starch addition on the characteristics of bioplastic based on orange peel pectin: Original scientific paper

Characteristics of microcrystalline cellulose based on coconut husk through hydrolysis process

Pectin edible film filled with carbonate hydroxyapatite (CHA): The effect of filler loading on the physical properties of pectin edible film

THE ROLE OF STIRRING SPEED ON THE PROPERTIES IMPROVEMENT OF BIOPLASTIC COMPOSITE SAGU STARCH MODIFIED WITH CELLULOSE MICROCRYSTAL AND BETEL LEAF EXTRACT.

MECHANICAL AND THERMAL PROPERTIES OF STARCH AVOCADO SEED BIOPLASTIC FILLED WITH CELLULOSE NANOCRYSTAL (CNC) AS FILLER AND POTASSIUM CHLORIDE (KCl) AS DISPERSION AGENT.

Karakteristik dan Daya Hambat Mikroba Edible Filmdengan Penambahan Filler Kulit Salak (Salacca zalacca) sebagai Pengemas Makanan

Penyuluhan Mengenai Pentingnya Pemilahan Sampah Organik dan Non-Organik ke Anak-anak SD Muhammadiyah 02 Medan

Nisaul Fadilah Dalimunthe Information

University

Universitas Sumatera Utara

Position

___

Citations(all)

84

Citations(since 2020)

83

Cited By

3

hIndex(all)

4

hIndex(since 2020)

4

i10Index(all)

2

i10Index(since 2020)

2

Email

University Profile Page

Universitas Sumatera Utara

Nisaul Fadilah Dalimunthe Skills & Research Interests

Material

Top articles of Nisaul Fadilah Dalimunthe

Karakteristik Sifat Fisik Membran Elektrolit Polimer Berbasis Kitosan Larva Black Soldier Fly/Polivinil Alkohol/Poliakrilonitril dengan Penambahan Ammonium Klorida

Authors

Muhammad Thoriq Al Fath,Nisaul Fadilah Dalimunthe,Rivaldi Sidabutar,Rosma Natalia Samosir,Thiodorus Marvin Tjandra

Journal

Jurnal Teknik Kimia USU

Published Date

2024/3/23

Black soldier fly larvae shells/BSF-based chitosan can be utilized as polymer electrolyte membrane. This research aims to analyze the physical characteristics of BSF chitosan/PVA/PAN/NH 4 Cl by varying amount of chitosan and ratio of PVA: PAN. Membrane was fabricated using the phase inversion method. Polymer electrolyte with a mixture of 1.20 g of PVA/PAN with ratio variations of 10: 90 and 20: 80 and chitosan variations of 2.4 g; 2.8 g; and 3.2 g. Chitosan was also FTIR-characterized. Density and wáter absorption of polymer electrolyte with chitosan composition of 2.4 g; 2.8 g; 3.2 g and PVA/PAN ratio of 10: 90 were 0.824 g/mL; 1 g/mL and 1.51 g/mL and water absorption 28.571%; 38.333%; and 46.154%, respectively; and at PVA/PAN ratio of 20: 80 were 0.734 g/mL; 1.03 g/mL and 1.096 g/mL and water absorption 62.5%; 66.667% dan 100%, respectively. Best physical property was obtained with the incorporation of 2.4 g of chitosan and 10: 90 PVA/PAN ratio.

The effect of glycerol and sago starch addition on the characteristics of bioplastic based on orange peel pectin: Original scientific paper

Authors

M Thoriq Al Fath,Ghendis Ekawati Ayu,Gina Cynthia Raphita Hasibuan,Nisaul Fadilah Dalimunthe,Vikram Alexander

Journal

Chemical Industry & Chemical Engineering Quarterly

Published Date

2024/3/8

Sustainable food packaging materials have significant interest in addressing environmental issues by making renewable substitutes such as bioplastic based on pectin. Orange peel has a relatively high pectin content of 42.5%, which can be synthesized into bioplastic. Pectin-based bioplastic tend to have limitations in terms of mechanical and physical strength due to the hygroscopic nature of pectin. This study aims to determine the effect of adding glycerol and sago starch on the characteristics of orange peel pectin-based bioplastic. The casting method was used in the bioplasctic formulation using the variation of the pectin: starch ratio (75: 25, 65: 35, 55: 45; and 50: 50%) and glycerol composition (10, 20, 30, and 40%). Based on the results, the pectin obtained categorized as low methoxyl pectin and ester pectin. The characterizations of bioplastic achieved the maximum value of the tensile strength of bioplastic was 4.22 MPa, obtained by adding pectin: starch (50: 50%) and 10% glycerol. The maximum value of the elongation properties at the break of bioplastic is 24%, obtained by adding the composition of pectin: starch (75: 25%) and 40% glycerol. The more additions of the pectin: starch and glycerol composition result in higher water vapor evaporation rate. Hence, utilizing orange peel pectin-based bioplastic offers a sustainable solution by exploring repurposing waste to create bioplastic for food packaging, thereby contributing to environmental preservation.

Characteristics of microcrystalline cellulose based on coconut husk through hydrolysis process

Authors

Halimatuddahliana Nasution,Elisa Julianti,Nisaul Fadilah Dalimunthe,Kelvin Kelvin,Pittor Suherman

Journal

AIP Conference Proceedings

Published Date

2023/7/19

This study aimed to explore the characteristics of microcrystalline cellulose isolated from coconut husk. Microcrystalline cellulose has been separated from coconut husk by acid hydrolysis process after being treated by alkali and bleaching process. It showed that the crystallinity of microcrystalline cellulose has increased because of the exposure of the crystalline phase after the removal of lignin via alkaline treatment and the amorphous region of cellulose via acid hydrolysis. The characterization was carried out in the form of analysis of crystallinity and functional groups of microcrystalline cellulose and then compared with the characteristics of coconut husk and cellulose. The results showed from X-ray Diffraction (XRD) the crystal content in microcrystalline cellulose was detected at 70%, and the surface morphology showed rod-shaped. Fourier Transform Infra-red (FTIR) showed that the C= O group derived from …

Pectin edible film filled with carbonate hydroxyapatite (CHA): The effect of filler loading on the physical properties of pectin edible film

Authors

Nisaul Fadilah Dalimunthe,M Thoriq Al Fath

Journal

AIP Conference Proceedings

Published Date

2023/7/19

Pectin edible film (PEF) is a biopolymer material with a thin layer. The physical properties of edible pectin film, such as density, water uptake, and water vapor transmission rate (WVTR), were observed in the PEF filled with carbonate hydroxyapatite (CHA). PEF filled with CHA is used as a film for the drug delivery system in this research. The cinnamaldehyde as a sample of the drug was poured into the solution of PEF. PEF was produced by mixing pectin (0.015 g/mL); CHA with the concentrations that have been appointed (1, 3, 5, and 7 wt%) and tween 80 (0.5% w/v) as an emulsifier. The mixture was poured into the 0.6 g glycerol/g polymer's solution and stirred well for around 1.5 hours until the solution reached the homogeneous phase. The mix of the PEF’s solution was heated to 70 C in about 30 minutes then poured the cinnamaldehyde (2 wt%) as a sample of the drug and stirred well for 30 minutes. The PEF …

THE ROLE OF STIRRING SPEED ON THE PROPERTIES IMPROVEMENT OF BIOPLASTIC COMPOSITE SAGU STARCH MODIFIED WITH CELLULOSE MICROCRYSTAL AND BETEL LEAF EXTRACT.

Authors

H Nasution,E Julianti,NF Dalimunthe,M Asdita,A Zoelva,M Sartika

Journal

Rasayan Journal of Chemistry

Published Date

2023/7/1

Studies related to making bioplastic composites based on sago starch filled with microcrystalline cellulose and betel leaf extract have several advantages. Among them is the availability of materials that are renewable, biodegradable, resistant to microbial attack, and can improve mechanical properties. The stirring speed effect at the time of mixing the ingredients in producing bioplastic composites has been carried out. The raw materials used were sago starch, microcrystalline cellulose from coconut husk, extract from betel leaves, and glycerol. The composition of the mixture of ingredients is 100 g of sago starch plus 8% w microcrystalline cellulose, 6% w betel leaf extract, and 20% w glycerol. The variations made were in the stirring speed of the mixer: 120, 180, 240, and 300 rpm. The process was carried out in a mixer at 70 oC for a duration of 25 minutes. Several analyses were carried out related to density, Fourier transform infrared (FTIR), water absorption, tensile properties, and antimicrobial properties of bioplastic composites. The results obtained showed that all of the bioplastic composite materials were identified in groups in the FTIR spectra. The results also showed that at a stirring speed of 180 rpm, the properties of the bioplastic composite showed the best. Density and water absorption values at 180 rpm speed respectively are 1.25 g/cm3 and 62.5%. While for tensile strength and elongation at break of 1190.643 kPa and 21.1%, respectively. This result is related to the uniform distribution of microcrystalline cellulose as filler in sago starch at a stirring speed of 180 rpm. In the case of antibacterial properties, the stirring speed has no …

MECHANICAL AND THERMAL PROPERTIES OF STARCH AVOCADO SEED BIOPLASTIC FILLED WITH CELLULOSE NANOCRYSTAL (CNC) AS FILLER AND POTASSIUM CHLORIDE (KCl) AS DISPERSION AGENT.

Authors

MT Al Fath,GE Ayu,M Lubis,GCR Hasibuan,NF Dalimunthe

Journal

Rasayan Journal of Chemistry

Published Date

2023/7/1

The development of bioplastics is currently in demand considering that was a substitute for the synthesis of plastic packaging with environmental consequences. Bioplastics are environmentally friendly because they are made from natural materials and can be degraded naturally. This study centers on the manufacture of bioplastic based on avocado seed starch with variations in the addition of cellulose nanocrystal (CNC) fillers using oil palm mesocarp fibers as raw material and the appended potassium chloride as dispersing agent. In this research, we analyzed the mechanical dan thermal properties of bioplastic including scanning electron microscopy (SEM), elongation at break (Eb), tensile strength (Ts), and thermal gravimetry analysis (TGA). The highest value of Ts was obtained at the appended of 2 wt.% of CNC and the appended 2 wt.% of KCl, while the highest value of Eb was obtained at 2 wt.% of CNC and 3 wt.% of KCl. Scanning electron microscopy showed uniformly distributed CNC granules filling the surface of the bioplastic. There are six phases of thermal gravimetry analysis. These results indicate that the addition of CNC and KCl will increase the mechanical and thermal properties of avocado seed bioplastic.

Karakteristik dan Daya Hambat Mikroba Edible Filmdengan Penambahan Filler Kulit Salak (Salacca zalacca) sebagai Pengemas Makanan

Authors

Nisaul Fadilah Dalimunthe,M. Thoriq Al Fath,M. Hendra S. Gintin,Tania Natasya,Khairunnisa Alifia Pulungan

Journal

Teknik Kimia USU

Published Date

2023/3/24

2. MetodeBahan baku yang digunakan dalam penelitian ini adalah gliserol, kulit buah salak yang diperoleh dari Padang Sidempuan, pektin komersial, kalsium klorida dihidrat (CaCl2. 2H2O), silica gel dan Tween 80. Peralatan utama yang digunakan adalah ayakan 230 mesh, blender, magnetic stirrer, hot plate, oven listrik, timbangan, termometer dan cetakan.Kulit salak dicuci dengan air beberapa kali sampai bersih kemudian dikeringkan dalam oven dengan suhu 70 oC sampai kering, lalu diblender sampai terbentuk serbuk, kemudian diayak dengan menggunakan mesh No. 230 [9]. Pembuatan edible film dilakukan dengan menggunakan metode solvent casting mengikuti proses yang dilakukan oleh Wirawan et al.(2012) yaitu dengan melarutkan 0,015 g/mL pektin, kulit salak dengan variasi konsentrasi sebesar 0%, 2%, 3%, 4% dan 6%(wt) dan Tween 80 (0, 5% dari berat total) dalam 200 mL larutan yang telah mengandung 0, 6 g plasticizer/g pektin pada suhu kamar sambil diaduk dengan pengaduk merkuri selama 1, 5 jam agar larutan homogen. Larutan dipanaskan sampai 70 C kemudian dimasukkan larutan CaCl2. 2H2O sebanyak 0, 04 g/g pektin dalam 30 mL aquadest selama 30 menit (sedikit demi sedikit). Setelah larutan tercampur seluruhnya pengadukan dihentikan dan larutan dituang pada teflon kemudian dikeringkan dengan oven vakum pada suhu 50 oC selama 15 jam. Film yang sudah mengering disimpan pada desikator berisi silika gel selama 1 hari. Selanjutnya dilakukan analisis sifat-sifat fisik yakni meliputi

Penyuluhan Mengenai Pentingnya Pemilahan Sampah Organik dan Non-Organik ke Anak-anak SD Muhammadiyah 02 Medan

Authors

Gina Cynthia Raphita Hasibuan,Nisaul Fadilah Dalimunthe

Journal

ABDI SABHA (Jurnal Pengabdian kepada Masyarakat)

Published Date

2022/8/4

Permasalahan sampah ini juga merupakan salah satu permasalahan krusial yang dihadapi Indonesia. Namun demikian, kesadaran masyarakat tentang pentingnya pengelolaan sampah masih belum optimal. Pentingnya pendidikan mengenai pengelolaan sampah perlu dilakukan sejak dini agar dampak negatif sampah bisa diminimalisasi. Untuk itu tujuan dari kegiatan pengabdian kepada masyarakat ini adalah untuk memupuk kesadaran serta meningkatkan pemahaman anak-anak sekolah dasar mengenai pentingnya melakukan pemilahan sampah serta membuang sampah dengan benar sesuai dengan jenisnya. Kegiatan pengabdian kepada masyarakat ini bersifat penyuluhan dan hands-on experience, dimana anak-anak SD Muhammadiyah 02 Medan langsung diajarkan untuk memilah sampah dan memasukkan sampah tersebut ke tong sampah organik atau non-organik yang telah disediakan. Hasil yang diharapkan adalah pemahaman yang meningkat tentang pengelolaan sampah serta penerapan yang dilakukan oleh anak-anak sekolah dasar dimulai dari lingkungan serta kesehariannya sendiri. Untuk kegiatan pengabdian masyarakat selanjutnya dapat diarahkan ke praktik bagaimana cara mengolah dan melakukan daur ulang sampah organik maupun non-organik.

Tensile properties and antimicrobial activity of bioplastic based on sago starch utilized piper betel leaf

Authors

Halimatuddahliana Nasution,Elisa Julianti,Nisaul Fadilah Dalimunthe,Gita Wulandari

Journal

AIP Conference Proceedings

Published Date

2022/12/5

Starch has become the most promising source of bioplastic material since it has a low cost, availability, and compostability. Meanwhile, starch-based bioplastic has poor mechanical properties and is not resistant to biological activity. The purpose of this study is to investigate the effect of the addition of antimicrobial from betel leaf extract and plasticizer from glycerol on sago starch bioplastic’s tensile properties and antimicrobial activity. The betel leaf extract extraction was done using the ultrasonic method with ethanol 96% as a solvent with a ratio of the betel leaf powder to the solvent 1: 5 (w/v). The sago starch-based bioplastic preparation was done by adding 10 g starch in 100 mL distilled water and was heated at 70 oC for 25 minutes. The different glycerol variation 0%, 10%, 20%, and 30%(% v). and betel leaf extract concentration 0%, 3%, 6%, and 9%(% v) was add to the bioplastic mixture. The disk diffusion …

Edukasi kepada Anak-anak SMP Muhammadiyah 57 Medan mengenai Pemilahan Jenis Sampah

Authors

Nisaul Fadilah Dalimunthe,Gina Cynthia R Hasibuan

Journal

ABDI SABHA (Jurnal Pengabdian kepada Masyarakat)

Published Date

2022/2/20

Waste is a common problem that is often found in the environment. One alternative that can be implemented to reduce the waste problem is by sorting waste based on its category. The purpose of waste sorting is to reduce waste accumulation, environmental pollution and to be able to reuse waste that still has economic value. The method applied in this community service is by implementing direct counselling and demonstration on the sorting of organic and inorganic waste types, which consists of several stages, namely: agreement, preparation of socialization or counselling and practical implementation of socialization/counselling and evaluation. From the results of the community service activity, all questions could be answered by the participants. Each participant can categorize waste based on its category and know the importance of sorting waste. With this community service activity, every student is expected not only to apply it in the school environment but also in the community.

Workshop on community-based household organic waste management using ThrowbinC at the Aisyiyah Kampung Dadap Medan Organization

Authors

Gina Cynthia Raphita Hasibuan,Tania Alda,Nisaul Fadilah Dalimunthe,M Thoriq Al Fath,Salwa Afifah,Juan Akmal Nasution,Janeta Fazriah Rambe,Indah Mutya Sari

Journal

ABDI SABHA (Jurnal Pengabdian kepada Masyarakat)

Published Date

2022/10/31

Nancy Y. Disasters Due to Garbage, Floods and Landslides [Internet]. 2021 [cited 2022 Feb 8]. Available from: https://tirto. id/bencana-hasil-sampah-gunung-until-longsor-sampah-gaB Z Wardhana AH. Black Soldier Fly (Hermetia illucens) as an Alternative Protein Source for Animal Feed. WARZOA. 2016; 26 (2): 69–78. United Nations Goal 12| Department of Economic and Social Affairs [Internet].[cited 2022 Feb 12]. Available from: https://sdgs. un. org/goals/goal12 SIPSN. SIPSN-National Waste Management Information System [Internet]. 2021 [cited 2022 Jan 25]. Available from: https://sipsn. menlhk. go. id/sipsn/i? ková H, Newton GL, Lacy RC, Kozánek M. The use of fly larvae for organic waste treatment. Waste Manag. 2015 Jan 1: 35: 68–80. Rindhe SN, Chatli MK, Wagh RV, Kaur A, Mehta N, Kumar P, et al. Black Soldier Fly: A New Vista for Waste Management and Animal Feed. Int J Curr Microbiol Appl Sci. 2019 Jan 20; 8 (01): 1329–42. Diener S, Studt Solano NM, Roa Gutiérrez F, Zurbrügg C, Tockner K. Biological treatment of municipal organic waste using black soldier fly larvae. Waste and Biomass Valorization [Internet]. 2011 Nov 18 [cited 2022 Jan 28]; 2 (4): 357–63. Available from: https://link. springer. com/article/10.1007/s12649-011-9079-1 Supriyatna A, Kurahman OT, Cahyanto T, Yuliawati A, Kulsum Y, Supriyatna A, et al. The Potency of Black Soldier Larvae (Hermetia illucens L.) as a Source of Protein for Livestock Feed. Bioscientific J Biol Biol Educ [Internet]. 2018 Aug 29 [cited 2022 Jan 28]; 10 (2): 448–54. Available from: https://journal. unnes. ac. id/nju/index. php/biosaintifika/article/view/14422 Liu T, Awasthi MK, Chen H, Duan Y …

Pra Rancangan Pabrik Biogas dari Limbah Pabrik Tapioka (LPT) dengan Fermentasi Anaerobik Double Stage untuk Kapasitas Bahan Baku 36.000 Ton LPT/Tahun dan Tugas Khusus Rancangan …

Authors

Seri Maulina,Nisaul Fadilah Dalimunthe

Published Date

2022

Preliminary plant design of biogas from Tapioca Industry Waste operates at the temperature of 55oC and the pressure of 1 atm through Double-Stage Anaerobic Digestion, which uses 2 fermenters in the methane gas formation process. The biogas plant is planned to produce with a raw material capacity of 36.000 tons of TIW/year and generates 16.718,722 kW/hour electricity (132.412.279,639 kW/year), and operates for 330 days a year. The plant location is planned in Sukaraja Nuban Village, Batanghari Nuban District, East Lampung Regency, Lampung, Indonesia with an area of 15.796 m2 and The Way Kandis River as the plant’s water source. The planned business entity form is Limited Liability Company (PT) and the organizational form is line and staff with the required workforce of 115 people. The results of the economic analysis of biogas plant from tapioca industry waste with double stage anaerobic digestion are as follows: - Total Investment Capital : Rp 273.689.481.295,29 - Total Production Cost : Rp 139.166.884.472,67 - Total Sales : Rp 316.710.505.745,05 - Net Profit : Rp 108.208.135.828,29 - Profit Margin (PM) : 56,11% - Break Even Point (BEP) : 46,64% - Return on Investment (ROI) : 39,54% - Pay Out Time (POT) : 2 years 7 months - Return on Network (RON) : 65,89% - Internal Rate of Return (IRR) : 40,26% Based on the results of the analysis of the economic aspects, it can be concluded that “Preliminary Plant Design of Biogas from Industry Waste (TIW) Using Double Stage Anaerobic Fermentation for Raw Material Capacity 36.000 Tons/Year and Special Task of Stripper Detailed Engineering Design” is feasible to establish

Penyuluhan Pemanfaatan Kertas Bekas Menjadi Produk Kerajinan Tangan pada Yayasan Al-Kahfi

Authors

Tania Alda,Gina Cynthia Raphita Hasibuan,Nisaul Fadilah Dalimunthe,Muhammad Thoriq Al Fath,Aravi Zalsa Ramadhan,Mhd Reza Kurniawan Lubis,Rafif Akhmad Al Fandya,Muhammad Syafiq Hisyam

Journal

ABDI SABHA (Jurnal Pengabdian kepada Masyarakat)

Published Date

2022/10/15

The use of paper is increasing from time to time. If not handled properly it will have an impact on the surrounding environment. One way that can reduce the impact to the environment is to recycle the paper waste into a handicraft product that has economic value. Based on this background, a training for community is needed to educate on how to process used paper into valuable handicraft products. This education must be instilled from an early age, so that children begin to understand that by properly processing waste paper, they can produce something of value that will have an impact on increasing income. This training was carried out at the Al-Kahfi Medan Foundation. The object (target audience) of this community service is the children at the Al-Kahfi Medan Foundation. Children at the Al-Kahfi Medan Foundation do not yet know that used paper can be processed into valuable handicraft products, so a socialisation is needed for them. Children will be given training and trained to be able to process used paper into handicraft products and then be able to market and sell it. After being given this training, it is expected that the mindset of the children at the Al-Kahfi Medan Foundation can change from before, namely waste paper waste, with proper handling can become a valuable handicraft product. The method that will be carried out in this community service is to provide training and also practices and then a trial is carried out so that the children at the Al-Kahfi Medan Foundation can understand the mechanism of processing the used paper into handcraft products.

Pengaruh Selulosa Nanokristal dari Serat Buah Kelapa Sawit sebagai Pengisi dan Kalium Klorida sebagai Agen Pendispersi Terhadap Sifat Fisik Bioplastik Berbasis Pati Biji …

Authors

M Thoriq Al Fath,Maulida Lubis,Ghendis Ekawati Ayu,Nisaul Fadilah Dalimunthe

Journal

AQUACOASTMARINE: Journal of Aquatic and Fisheries Sciences

Published Date

2022/9/25

Penelitian ini bertujuan untuk mengetahui pengaruh selulosa nanokristal dan kalium klorida (KCl) pada bioplastik dari pati biji alpukat dan gliserol sebagai plasticizer. Pada penelitian ini, selulosa nanokristal yang diperoleh dari serat buah kelapa sawit dihidrolisis dengan menggunakan asam sulfat (H2SO4) pada konsentrasi 50%. Pati yang digunakan dalam penelitian ini diperoleh dari proses ekstraksi biji alpukat. Proses pembuatan bioplastik digunakan metode casting dengan penambahan selulosa nanokristal sebagai pengisi 1%, 2%, 3%, dan 4%(b/b), KCl sebagai pendispersi 0%, 1%, 2%, dan 3%(b/b), dan gliserol sebagai plasticizer sebesar 30%. Berdasarkan analisis densitas, nilai densitas optimum diperoleh pada penambahan 2% selulosa nanokristal dan 2% KCl dengan nilai sebesar 0,041 gram/cm3. Nilai penyerapan air yang terbaik adalah dengan penambahan selulosa nanokristal 2% dan KCl 1%, dengan nilai 57, 1% dan 53, 8%. Hasil Scanning Electron Microscope menunjukkan butiran-butiran selulosa nanokristal yang tersebar seragam mengisi permukaan bioplastik. Penambahan KCl sebagai agen pendispersi memberikan dampak yang baik.

Hydrogel and effects of crosslinking agent on cellulose-based hydrogels: A review

Authors

Halimatuddahliana Nasution,Hamidah Harahap,Nisaul F Dalimunthe,M Hendra S Ginting,Mariatti Jaafar,Orlando OH Tan,Hotmauli K Aruan,Alief L Herfananda

Published Date

2022/9/7

Hydrogels are hydrophilic polymer materials that can swell but are insoluble in water. Hydrogels can be synthesized with synthetic or natural polymers, but natural polymers are preferred because they are similar to natural tissues, which can absorb a high water content, are biocompatible, and are biodegradable. The three-dimensional structure of the hydrogel affects its water insolubility and ability to maintain its shape. Cellulose hydrogels are preferred over other polymers because they are highly biocompatible, easily accessible, and affordable. Carboxymethyl cellulose sodium (CMCNa) is an example of a water-soluble cellulose derivative that can be synthesized using natural materials. A crosslinking agent is used to strengthen the properties of the hydrogel. Chemical crosslinking agent is used more often than physical crosslinking agent. In this review, article, different types of crosslinking agents are discussed based on synthetic and natural crosslinking agents. Hydrogels that utilize synthetic crosslinking agent have advantages, such as adjustable mechanical properties and easy control of the chemical composition. However, hydrogels that use natural crosslinking agent have better biocompatibility and less latent toxic effect.

The role of betel (Piper betle) leaf extract and glycerol on physical properties of bioplastic based on sago starch

Authors

H Nasution,E Julianti,NF Dalimunthe,G Wulandari

Journal

IOP Conference Series: Earth and Environmental Science

Published Date

2021/11/1

Starch-based bioplastic from sago is one of the potential sources in Indonesia. Since it is made from natural ingredients, it is easier to absorb water and susceptible to the activity of microorganisms. Betel leaf extract is one of natural antimicrobial agent that rich of tannin and flavonoid. This study aims to investigate physical properties and antimicrobial activity of sago (Metroxylon sp.) starch-based bioplastic. The betel leaf was extracted by using the ultrasonication method with ethanol as a solvent. Betel leaf concentrated extract is diluted using aquadest with a concentration of 2 g/100 mL (2%) to be applied as an antimicrobial agent in bioplastics. The compositions of glycerol were varied from 10-30% whereas betel leaf extract from 3-9%(v) in the manufacture of bioplastics. The results show that the highest density of 1.5 g/cm 3 was achieved at the composition of glycerol and betel leaf extract, respectively, 30%(v …

The effect of addition nanoparticle chicken eggshell fillers on biocomposite acrylic resin for denture base

Authors

Maulida Lubis,Mara B Harahap,MHS Ginting,DMT Hasibuan,NF Dalimunthe

Published Date

2021/8

Chicken eggshell contains a high mineral compound, so it is suitable to use as nanoparticle filler. In this research, preparation of denture base with nanoparticle chicken eggshell filler and the variation of filler concentration was 0, 10, 20, 30 (% wt). Preparation of matrix acrylic denture base was processed by mixing powder of the acrylic resin and liquid monomer with the weight ratio 2: 1, after that matrix is mould in a cuvette, then polymerized by boiling in water at 75 C for 90 minutes, after 90 minutes, temperature was raised to 100 C and left for 30 minutes. Characterizations on denture base samples are included by MOE, MOR, FTIR, XRD and TEM. The best result is the addition with 10% filler, in which the modulus of elasticity test (MOE) shown the elasticity of sample are 2.571 GPa, and modulus of rupture test (MOR) shown the rupture of sample are 48.859 MPa.

Effect of Carbonate Hydroxyapatite (CHA) on the Properties of Pectin Edible Films

Authors

Nisaul Fadilah Dalimunthe,Yuni Kusumastuti,Sang Kompiang Wirawan

Journal

Key Engineering Materials

Published Date

2020/5/25

Pectin is a derivative polysaccharides biopolymer that can be used as a material for an edible film. In this study, pectin edible film was made from a thin layer of edible pectin. The physical properties of the edible films such as elongation of the break, tensile strength, and the swelling degree were observed when carbonate hydroxyapatite (CHA) was added to the pectin edible film. In order to study the loading and release behavior of the pectin edible film, cinnamaldehyde (2 wt%) was also added to the film used as a drug sample. Cinnamaldehyde is known as a derivative compound of cinnamon bark. The edible film was made by mixing pectin (0.015 g/mL) and carbonate hydroxyapatite (CHA). Various concentration of carbonate hydroxyapatite (1, 3, 5, 7 wt%) was diluted in water and stirred using tween 80 and glycerol for about 1.5 h at a temperature of 70 °C. Then, cinnamaldehyde was added to the mixture and …

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The h-index of Nisaul Fadilah Dalimunthe has been 4 since 2020 and 4 in total.

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The articles with the titles of

Karakteristik Sifat Fisik Membran Elektrolit Polimer Berbasis Kitosan Larva Black Soldier Fly/Polivinil Alkohol/Poliakrilonitril dengan Penambahan Ammonium Klorida

The effect of glycerol and sago starch addition on the characteristics of bioplastic based on orange peel pectin: Original scientific paper

Characteristics of microcrystalline cellulose based on coconut husk through hydrolysis process

Pectin edible film filled with carbonate hydroxyapatite (CHA): The effect of filler loading on the physical properties of pectin edible film

THE ROLE OF STIRRING SPEED ON THE PROPERTIES IMPROVEMENT OF BIOPLASTIC COMPOSITE SAGU STARCH MODIFIED WITH CELLULOSE MICROCRYSTAL AND BETEL LEAF EXTRACT.

MECHANICAL AND THERMAL PROPERTIES OF STARCH AVOCADO SEED BIOPLASTIC FILLED WITH CELLULOSE NANOCRYSTAL (CNC) AS FILLER AND POTASSIUM CHLORIDE (KCl) AS DISPERSION AGENT.

Karakteristik dan Daya Hambat Mikroba Edible Filmdengan Penambahan Filler Kulit Salak (Salacca zalacca) sebagai Pengemas Makanan

Penyuluhan Mengenai Pentingnya Pemilahan Sampah Organik dan Non-Organik ke Anak-anak SD Muhammadiyah 02 Medan

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are the top articles of Nisaul Fadilah Dalimunthe at Universitas Sumatera Utara.

What are Nisaul Fadilah Dalimunthe's research interests?

The research interests of Nisaul Fadilah Dalimunthe are: Material

What is Nisaul Fadilah Dalimunthe's total number of citations?

Nisaul Fadilah Dalimunthe has 84 citations in total.

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