Garuda - Garba Rujukan Digital

Pengaruh Selulosa Nanokristal dari Serat Buah Kelapa Sawit sebagai Pengisi dan Kalium Klorida sebagai Agen Pendispersi Terhadap Sifat Fisik Bioplastik Berbasis Pati Biji Alpukat (Persea americana) M. Thoriq Al Fath; Lubis, Maulida; Ayu, Ghendis Ekawati; Dalimunthe, Nisaul Fadilah
Jurnal Teknik Kimia USU Vol. 11 No. 2 (2022): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v11i2.9239

This study aims to determine the effect of nanocrystalline cellulose and potassium chloride (KCl) to bioplastics from avocado seed starch and glycerol as plasticizer. In this study, nanocrystal cellulose obtained from palm fruit fiber was hydrolyzed using sulfuric acid (H2SO4) at a concentration of 50%. The starch used in this study was obtained from the avocado seed extraction process. On producing bioplastic, the casting method was used with the addition of nanocrystal cellulose as filler of 1%, 2%, 3%, and 4% (%w), KCl as dispersing agent of 0%, 1%, 2%, and 3% (%w), and glycerol as plasticizer by 30 (%w). Based on the density test, the optimum value was obtained at 2% of nanocrystal cellulose and 2% of KCl with the value around 0.041 gram/cm3. The best water absorption values were 57.1% and 53.8% which obtained at 2% of nanocrystal cellulose and 1% of KCl. Scanning Electron Microscope test results showed uniformly distributed nanocrystal cellulose granules filling the surface of the bioplastic. The addition of KCl as dispersion agent give a good impact.

Karakteristik dan Daya Hambat Mikroba Edible Film dengan Penambahan Filler Kulit Salak (Salacca zalacca) sebagai Pengemas Makanan Dalimunthe, Nisaul Fadilah; M. Thoriq Al Fath; S. Ginting, M. Hendra; Natasya, Tania; Pulungan, Khairunnisa Alifia
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.10395

An edible film serves to protect and improve food quality. One of the ingredients that can be used is pectin. However, edible films made from pectin have fragile mechanical properties, so snakefruit peel is added as a filler to improve mechanical properties. Edible films were prepared with concentrations from 0%, 2%, 3%, 4%, and 6% (wt), pectin, glycerol (C3H8O3), calcium hloride dihydrate (CaCl2.2H2O) and Tween 80. It was stirred with magnetic stirrer, printed and dried in an oven to test the properties. As a result, the addition of snakefruit peel affected the thickness, swelling, degradation and antimicrobial. The thickness obtained is between 0.024 mm - 0.0172 mm. The swelling results obtained ranged from 0.0409 - 0.0137. The best degradation results were obtained on day 5th, with varying concentrations of 6% snakefruit peel. The results of the study on antimicrobial activity showed that maximal inhibition with varying concentrations of 6% snakefruit peel with an inhibition zone of 20.8 mm.

Karakteristik Sifat Fisik Membran Elektrolit Polimer Berbasis Kitosan Larva Black Soldier Fly/Polivinil Alkohol/Poliakrilonitril dengan Penambahan Ammonium Klorida Muhammad Thoriq Al Fath; Dalimunthe, Nisaul Fadilah; Sidabutar, Rivaldi; Michael; Samosir, Rosma Natalia; Thiodorus Marvin Tjandra
Jurnal Teknik Kimia USU Vol. 13 No. 1 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i1.15595

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/NH4Cl 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.

Penentuan Kadar Flavonoid dan Kandungan Fitokimia Ekstrak Kulit Bawang Merah (Allium cepa L) dengan Berbantukan Microwave sebagai Potensi Bahan Aktif Tabir Surya Dalimunthe, Nisaul Fadilah; M. Thoriq Al Fath; Taslim; S. Ginting, M. Hendra; Farah Nurul Alifia; Berta, Grace Adela
Jurnal Teknik Kimia USU Vol. 13 No. 2 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i2.16318

The skin serves as a protective barrier against dust and ultraviolet (UV) radiation. Excessive UV exposure is associated with accelerated skin aging, erythema, hyperpigmentation, and carcinogenesis. This study aimed to quantify flavonoid concentrations and characterize phytochemical constituents in shallot skin extracts for their potential as active ingredients in sunscreen formulations. Shallot skin was subjected to microwave assisted extraction using 70% ethanol as the solvent. Phytochemical screening revealed the presence of flavonoids, tannins, saponins, and alkaloids in the extract. Flavonoid content was determined via UV-Vis spectrophotometry, yielding 36.33 mgQE/g. The high flavonoid concentration observed in shallot skin extract suggests its potential efficacy as an active ingredient in sunscreen formulations.

Pengaruh Selulosa Nanokristal dari Serat Buah Kelapa Sawit sebagai Pengisi dan Kalium Klorida sebagai Agen Pendispersi Terhadap Sifat Fisik Bioplastik Berbasis Pati Biji Alpukat (Persea americana) M. Thoriq Al Fath; Lubis, Maulida; Ayu, Ghendis Ekawati; Dalimunthe, Nisaul Fadilah
Jurnal Teknik Kimia USU Vol. 11 No. 2 (2022): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v11i2.9239

This study aims to determine the effect of nanocrystalline cellulose and potassium chloride (KCl) to bioplastics from avocado seed starch and glycerol as plasticizer. In this study, nanocrystal cellulose obtained from palm fruit fiber was hydrolyzed using sulfuric acid (H2SO4) at a concentration of 50%. The starch used in this study was obtained from the avocado seed extraction process. On producing bioplastic, the casting method was used with the addition of nanocrystal cellulose as filler of 1%, 2%, 3%, and 4% (%w), KCl as dispersing agent of 0%, 1%, 2%, and 3% (%w), and glycerol as plasticizer by 30 (%w). Based on the density test, the optimum value was obtained at 2% of nanocrystal cellulose and 2% of KCl with the value around 0.041 gram/cm3. The best water absorption values were 57.1% and 53.8% which obtained at 2% of nanocrystal cellulose and 1% of KCl. Scanning Electron Microscope test results showed uniformly distributed nanocrystal cellulose granules filling the surface of the bioplastic. The addition of KCl as dispersion agent give a good impact.

Karakteristik dan Daya Hambat Mikroba Edible Film dengan Penambahan Filler Kulit Salak (Salacca zalacca) sebagai Pengemas Makanan Dalimunthe, Nisaul Fadilah; M. Thoriq Al Fath; S. Ginting, M. Hendra; Natasya, Tania; Pulungan, Khairunnisa Alifia
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.10395

An edible film serves to protect and improve food quality. One of the ingredients that can be used is pectin. However, edible films made from pectin have fragile mechanical properties, so snakefruit peel is added as a filler to improve mechanical properties. Edible films were prepared with concentrations from 0%, 2%, 3%, 4%, and 6% (wt), pectin, glycerol (C3H8O3), calcium hloride dihydrate (CaCl2.2H2O) and Tween 80. It was stirred with magnetic stirrer, printed and dried in an oven to test the properties. As a result, the addition of snakefruit peel affected the thickness, swelling, degradation and antimicrobial. The thickness obtained is between 0.024 mm - 0.0172 mm. The swelling results obtained ranged from 0.0409 - 0.0137. The best degradation results were obtained on day 5th, with varying concentrations of 6% snakefruit peel. The results of the study on antimicrobial activity showed that maximal inhibition with varying concentrations of 6% snakefruit peel with an inhibition zone of 20.8 mm.

Karakteristik Sifat Fisik Membran Elektrolit Polimer Berbasis Kitosan Larva Black Soldier Fly/Polivinil Alkohol/Poliakrilonitril dengan Penambahan Ammonium Klorida Muhammad Thoriq Al Fath; Dalimunthe, Nisaul Fadilah; Sidabutar, Rivaldi; Michael; Samosir, Rosma Natalia; Thiodorus Marvin Tjandra
Jurnal Teknik Kimia USU Vol. 13 No. 1 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i1.15595

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/NH4Cl 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.

Penentuan Kadar Flavonoid dan Kandungan Fitokimia Ekstrak Kulit Bawang Merah (Allium cepa L) dengan Berbantukan Microwave sebagai Potensi Bahan Aktif Tabir Surya Dalimunthe, Nisaul Fadilah; M. Thoriq Al Fath; Taslim; S. Ginting, M. Hendra; Farah Nurul Alifia; Berta, Grace Adela
Jurnal Teknik Kimia USU Vol. 13 No. 2 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i2.16318

The skin serves as a protective barrier against dust and ultraviolet (UV) radiation. Excessive UV exposure is associated with accelerated skin aging, erythema, hyperpigmentation, and carcinogenesis. This study aimed to quantify flavonoid concentrations and characterize phytochemical constituents in shallot skin extracts for their potential as active ingredients in sunscreen formulations. Shallot skin was subjected to microwave assisted extraction using 70% ethanol as the solvent. Phytochemical screening revealed the presence of flavonoids, tannins, saponins, and alkaloids in the extract. Flavonoid content was determined via UV-Vis spectrophotometry, yielding 36.33 mgQE/g. The high flavonoid concentration observed in shallot skin extract suggests its potential efficacy as an active ingredient in sunscreen formulations.

Sosialisasi Pemanfaatan Kasgot (Bekas Maggot) BSF Sebagai Pembuatan Pupuk Organik Berbasis Rumah Tangga Al Fath, Muhammad Thoriq; Hasibuan, Gina Cynthia Raphita; Alda, Tania; Dalimunthe, Nisaul Fadilah
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 5 No. 2 (2024): Juni
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v5i2.1092

This community service activity aims to find solutions to the problems faced by the Aisyiyah Organization mothers in Kampung Dadap, Medan, regarding the utilization of kasgot, a residue from household organic waste processing using Black Soldier Fly (BSF) maggots. The partners own agricultural land that requires additional nutrients to produce high-quality crops. Kasgot fertilizer is rich in amino acids and microorganisms that enhance soil nutrients without harming the environment. To reduce chemical fertilizer use, partners were trained to process kasgot with starch, molasses, and rice bran into solid granular organic fertilizer. The outcome is an eco-friendly, sustainable organic fertilizer.

Pemanfaatan Minyak Jelantah Untuk Bahan Baku Lilin Aromaterapi Di Yayasan Al Kahfi Medan Dalimunthe, Nisaul Fadilah; Muhammad Thoriq Al Fath; Gina Cynthia R. Hasibuan; Tania Alda; Juan Akmal Nasution; Indah Mutya Sari; Janeta Fazriah Rambe; Putri Khodijah; Muhammad Fajar
ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Vol. 5 No. 2 (2024): Juni
Publisher : CERED Indonesia Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53695/jas.v5i2.1093

Waste cooking oil or what is commonly known as used cooking oil or Waste Cooking Oil (WCO) is one of the biggest contributors to waste in Indonesia. Waste cooking oil can have a negative impact on health and the environment, so it needs to be recycled into economically valuable products such as soap and candles. Through the results of surveys and FGDs with partners, this community service activity aims to find solutions to the problems faced by partners (Al-Kahfi Medan Foundation), namely the less-than-optimal use of used cooking oil from frying from partners' environments which are surrounded by the homes of residents who process food in the kitchen. So, this service aims to process used cooking oil as raw material for making aromatherapy candles. The object of this research is economically unproductive people, namely children at the Al-Kahfi Foundation in Medan. The used cooking oil is recycled as the main raw material and with the addition of stearic acid and aromatherapy, aromatherapy candles are produced which can be used by partners both for daily needs and for sale as business partners in seeking financial income. The aim of adding aromatherapy is to scent the entire room, thereby creating a comfortable sensation for those who inhale it. So in making it, adequate skills are needed so that they can produce quality products with high selling value by utilizing used cooking oil. The service that has been carried out is going well. Socialization activities accompanied by a direct manufacturing process make partners understand and enthusiastic about participating in this program.

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