Article Per Year (5 Year)
p-Index From 2020 - 2025
1.573
P-Index
This Author published in this journals
All Journal Jurnal Teknik Kimia USU Jurnal Teknik Kimia USU Sewagati JURNAL REKAYASA KIMIA & LINGKUNGAN
Nasution, Halimatuddahliana
Unknown Affiliation
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Public Health Social Sciences Other

Published : 8 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search

 1 
Karakteristik Antosianin dari Kulit Buah Nipah (Nypa frutican) sebagai Pewarna Alami dengan Metode Soxhletasi Herfayati, Putri; Pandia, Setiaty; Nasution, Halimatuddahliana
Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v9i1.2831

Abstract

Anthocyanin is a natural pigment that gives red colour on Nipah husk (Nypa fructican) extract. Extraction of anthocyanin compounds used the soxhletation method with independent variables were the type of solvent (aquadest and ethanol with citric acid 3% (w/v)) and extraction time (30, 45 and 60 minutes). This study aims to determine the best type of solvent and extraction time used for extraction of anthocyanin from Nipah husk. The parameters in this study include qualitative and quantitative analysis of anthocyanin (extract yield, total anthocyanin concentration, color intensity, antioxidant activity and analysis of toxicity) from Nipah husk extract. The results qualitatively and quantitatively indicate that Nipah husk extract had anthocyanin content with the highest extract yield was obtained using ethanol-citric acid 3% solvent at 60 minutes extraction time of 0.546 gram / gram. The highest total anthocyanin was obtained using ethanol-citric acid 3% solvent at 30 minutes extraction time of 226.36 mg / L. The highest color intensity was obtained using ethanol-citric acid 3% solvent at 30 minutes extraction time of 0.925. The strongest antioxidant activity (IC50) was obtained using 3% aquadest-citric acid solvent at 30 minutes extraction time of 3.569 ppm. The strongest toxicity activity (LC50) in ethanol-citric acid 3% solvent was 80.023 ppm.
Optimasi Suhu Hidrolisis dan Konsentrasi Asam Sulfat dalam Pembuatan Nanoselulosa Berbahan Dasar Serat Batang Pisang Kepok (Musa acuminata x balbisiana) Nasution, Halimatuddahliana; Ellsworth; Wijaya, Fenny
Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v9i1.3532

Abstract

This research aims to investigate the optimal hydrolysis temperature and sulfuric acid (H2SO4) concentration in isolating nanocrystalline cellulose (NCC) from kepok banana pseudostem fiber with the best yield and water solubility. In this research, cellulose fiber was delignified with NaOH at 80°C for 5 minutes, then followed by bleaching with hydrogen peroxide (H2O2) for 30 minutes twice. NCC was isolated through acid hydrolysis with H2SO4 (40%, 45%, 50%, 55% v/v) at 45 °C, 50 °C, 55 °C, 60 °C for 1 hour and ultrasonicated for 5 minutes. NCC crystal was then characterized through Transmission Electron Microscopy (TEM), and water solubility. TEM analysis showed the isolated NCC has a measured length of 125 – 144 nm. The highest NCC yield was obtained at 60°C and 55% H2SO4 at 26.75%. This analysis showed that NCC yield increases with increasing H2SO4 concentration and hydrolysis temperature. The lowest water solubility obtained is 0%, which shows the purity of the cellulose used to isolate NCC.
Karakteristik Antosianin dari Kulit Buah Nipah (Nypa frutican) sebagai Pewarna Alami dengan Metode Soxhletasi Herfayati, Putri; Pandia, Setiaty; Nasution, Halimatuddahliana
Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.813 KB) | DOI: 10.32734/jtk.v9i1.2831

Abstract

Anthocyanin is a natural pigment that gives red colour on Nipah husk (Nypa fructican) extract. Extraction of anthocyanin compounds used the soxhletation method with independent variables were the type of solvent (aquadest and ethanol with citric acid 3% (w/v)) and extraction time (30, 45 and 60 minutes). This study aims to determine the best type of solvent and extraction time used for extraction of anthocyanin from Nipah husk. The parameters in this study include qualitative and quantitative analysis of anthocyanin (extract yield, total anthocyanin concentration, color intensity, antioxidant activity and analysis of toxicity) from Nipah husk extract. The results qualitatively and quantitatively indicate that Nipah husk extract had anthocyanin content with the highest extract yield was obtained using ethanol-citric acid 3% solvent at 60 minutes extraction time of 0.546 gram / gram. The highest total anthocyanin was obtained using ethanol-citric acid 3% solvent at 30 minutes extraction time of 226.36 mg / L. The highest color intensity was obtained using ethanol-citric acid 3% solvent at 30 minutes extraction time of 0.925. The strongest antioxidant activity (IC50) was obtained using 3% aquadest-citric acid solvent at 30 minutes extraction time of 3.569 ppm. The strongest toxicity activity (LC50) in ethanol-citric acid 3% solvent was 80.023 ppm.
Optimasi Suhu Hidrolisis dan Konsentrasi Asam Sulfat dalam Pembuatan Nanoselulosa Berbahan Dasar Serat Batang Pisang Kepok (Musa acuminata x balbisiana) Nasution, Halimatuddahliana; Ellsworth; Wijaya, Fenny
Jurnal Teknik Kimia USU Vol. 9 No. 1 (2020): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.897 KB) | DOI: 10.32734/jtk.v9i1.3532

Abstract

This research aims to investigate the optimal hydrolysis temperature and sulfuric acid (H2SO4) concentration in isolating nanocrystalline cellulose (NCC) from kepok banana pseudostem fiber with the best yield and water solubility. In this research, cellulose fiber was delignified with NaOH at 80°C for 5 minutes, then followed by bleaching with hydrogen peroxide (H2O2) for 30 minutes twice. NCC was isolated through acid hydrolysis with H2SO4 (40%, 45%, 50%, 55% v/v) at 45 °C, 50 °C, 55 °C, 60 °C for 1 hour and ultrasonicated for 5 minutes. NCC crystal was then characterized through Transmission Electron Microscopy (TEM), and water solubility. TEM analysis showed the isolated NCC has a measured length of 125 – 144 nm. The highest NCC yield was obtained at 60°C and 55% H2SO4 at 26.75%. This analysis showed that NCC yield increases with increasing H2SO4 concentration and hydrolysis temperature. The lowest water solubility obtained is 0%, which shows the purity of the cellulose used to isolate NCC.
Sintesis dan Karakterisasi Edible Film Berbahan Dasar Limbah Kulit Kopi dengan Penambahan Gliserol dan Sorbitol sebagai Plasticizer Wahyu, Evita; Nasution, Halimatuddahliana; Harahap, Hamidah
Jurnal Teknik Kimia USU Vol. 14 No. 1 (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.v14i1.15567

Abstract

Edible film merupakan kemasan ramah lingkungan (biodegradable) dan bersifat edible (bisa dikonsumsi). Bahan penyusun utama edible film adalah hidrokoloid (polisakarida), lipid dan komposit keduanya. Salah satu jenis polisakarida berpotensi tinggi dan sedang menjadi pusat perhatian para peneliti untuk dijadikan edible film adalah pati. Namun edible film bersifat keras dan mudah rapuh sehingga perlu penambahan plasticizer untuk memperbaiki kelemahan tersebut. Pada penelitian ini digunakan campuran plasticizer gliserol dan sorbitol dengan perbandingan campurannya terhadap bahan baku 10%, 30%, 50% dan 70% (v/b pati) dan variasi konsentrasi gelatin 2 g, 4 g dan 6 g. Pati yang diekstrak dari kulit kopi memiliki kadar air 16% dengan persentase rendemen sebesar 4,39%. Hasil karakteristik edible film terbaik adalah variasi konsentrasi campuran plasticizer 10% dan konsentrasi gelatin 6 g dengan nilai kelarutan dalam air yang dihasilkan 71,37%, ketebalan 0,07 mm, kuat tarik 6,66 MPa, elongasi 22,93% dengan laju permeabilitas terhadap uap air sebesar 0,00433 g/m2s.
Pengolahan dan Pengawetan Hasil Laut Dengan Metode Asap Cair Di Desa Bagan Serdang Yustira, Ayuni; Nasution, Halimatuddahliana; Harahap, Hamidah; Manurung, Renita
Sewagati Vol 9 No 2 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i2.2314

Abstract

Objek pengabdian kepada masyarakat ini adalah para nelayan di Desa Bagan Serdang Kecamatan Pantai Labu Kabupaten Deli Serdang. Pengabdian ini berfokus pada proses pengolahan dan pengawetan sumber daya alam hasil laut berupa ikan. Produktivitas ikan yang tinggi di Desa Bagan Serdang mendorong masyarakat bermata pencaharian sebagai nelayan untuk memanfaatkan sumber daya alam hasil laut yang tidak habis terjual dan tidak termanfaatkan dengan baik melalui proses pengawetan menjadi produk ikan asap yang unggul dan bernilai jual. Selama ini, sumber daya alam hasil laut tangkapan melaut hanya dijual di pasar dan sisanya tidak termanfaatkan dan dibuang begitu saja sehingga mencemari ekosistem perairan, hal ini terjadi karena mitra belum memahami bagaimana proses pengolahan dan pengawetan yang tepat untuk sumber daya alam hasil laut, tim pengabdian menawarkan proses pengawetan dengan metode asap cair. Pengolahan dan pengawetan ikan dengan metode asap cair akan menghasilkan produk ikan asap yang tahan dalam jangka panjang. Metode yang digunakan dalam pengabdian ini yaitu sosialisasi dan edukasi, pelatihan teknologi pengawetan asap cair, praktik dan pendampingan, penggunaan dan perawatan peralatan, packaging dan labeling kemasan ikan asap. Manfaat yang diperoleh oleh mitra adalah memanfaatkan secara optimal ikan yang tidak termanfaatkan menjadi produk ikan asap yang bernilai jual, membentuk masyarakat yang mandiri dan kehidupan yang lebih baik, meningkatkan keterampilan kelompok mitra dalam pengolahan dan pengawetan sumber daya alam hasil laut sehingga berpengaruh terhadap peningkatan taraf hidup masyarakat serta terciptanya ketentraman dan kenyamanan dalam kehidupan bermasyarakat.
Sintesis dan Karakterisasi Edible Film Berbahan Dasar Limbah Kulit Kopi dengan Penambahan Gliserol dan Sorbitol sebagai Plasticizer Wahyu, Evita; Nasution, Halimatuddahliana; Harahap, Hamidah
Jurnal Teknik Kimia USU Vol. 14 No. 1 (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.v14i1.15567

Abstract

Edible film merupakan kemasan ramah lingkungan (biodegradable) dan bersifat edible (bisa dikonsumsi). Bahan penyusun utama edible film adalah hidrokoloid (polisakarida), lipid dan komposit keduanya. Salah satu jenis polisakarida berpotensi tinggi dan sedang menjadi pusat perhatian para peneliti untuk dijadikan edible film adalah pati. Namun edible film bersifat keras dan mudah rapuh sehingga perlu penambahan plasticizer untuk memperbaiki kelemahan tersebut. Pada penelitian ini digunakan campuran plasticizer gliserol dan sorbitol dengan perbandingan campurannya terhadap bahan baku 10%, 30%, 50% dan 70% (v/b pati) dan variasi konsentrasi gelatin 2 g, 4 g dan 6 g. Pati yang diekstrak dari kulit kopi memiliki kadar air 16% dengan persentase rendemen sebesar 4,39%. Hasil karakteristik edible film terbaik adalah variasi konsentrasi campuran plasticizer 10% dan konsentrasi gelatin 6 g dengan nilai kelarutan dalam air yang dihasilkan 71,37%, ketebalan 0,07 mm, kuat tarik 6,66 MPa, elongasi 22,93% dengan laju permeabilitas terhadap uap air sebesar 0,00433 g/m2s.
Effect of Glycerol Concentration and Filler Addition on the Properties of Bioplastics Derived from Kepok Banana Corm Starch Nasution, Halimatuddahliana; Manurung, Budi Holfrid; Nofifah, Nofifah
Jurnal Rekayasa Kimia & Lingkungan Vol 20, No 1 (2025): Jurnal Rekayasa Kimia & Lingkungan (June, 2025)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v20i1.42461

Abstract

The waste from kepok banana corms and stems has not been well utilized, even as banana production continues to rise, increasing the volume of such waste. In Indonesia, banana production in 2023 reached 9.75 million tons, up from 7.2 million tons the previous year, leading to a corresponding increase in banana waste. This research investigates the effects of glycerol and banana stem filler on the properties of bioplastics made from kepok banana corm starch, aiming to develop a sustainable alternative to conventional plastics. Starch was extracted from kepok banana corms through grinding, filtering, and drying at 80C for 15 minutes. Cellulose filler was produced from banana stems using bleaching with NaOH and H2O2, followed by neutralization and drying to a constant weight. Bioplastics were then produced with filler concentrations of 0%, 2%, 4%, and 6% and glycerol volumes of 1-4 mL per 10 grams of starch, on mixing conducted at 70C in distilled water. Characterizations and tests of the bioplastics included for cristallinity, functional groups, surface morphology, yield, density, water absorption, tensile strength, and elongation. Bioplastics with addition filler performed better than those without filler, with the 6% filler and 2 mL glycerol variation showing the most favorable properties, including a yield of 25.92%, density of 1.14 g/mL, water absorption of 0.24%, tensile strength of 5.49 MPa, elongation of 8%, and a homogeneous surface with well-distributed filler. These findings demonstrate the potential of kepok banana waste-based bioplastics as an environmentally friendly alternative.
Co-Authors Ayuni Yustira Ellsworth Hamidah Harahap, Hamidah Herfayati, Putri Manurung, Budi Holfrid Nababan, Febry Angelika Nofifah, Nofifah Renita Manurung Setiaty Pandia, Setiaty Wahyu, Evita Wijaya, Fenny Zuhrina Masyithah