Article Per Year (5 Year)
p-Index From 2021 - 2026
3.109
P-Index
This Author published in this journals
All Journal Jurnal Sains & Teknologi Lingkungan ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Jurnal Pendidikan dan Kewirausahaan Jurnal Rekayasa Lingkungan Cassowary Jurnal Natural Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Manusia dan Lingkungan al Kimiya : Jurnal Ilmu Kimia dan Terapan KOPEMAS Environmental Insight Journal JISTECH: Journal of Information Science and Technology
Agnes Dyah Novitasari Lestari
Universitas Papua
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

Published : 24 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 24 Documents
Search

 1   2   3 
Kemajuan Terkini Bioplastik Berbasis Sagu: Metode Preparasi, Karakteristik, Tantangan, dan Perspektif Masa Depan Rizky Fian Azhari; Susilowati Susilowati; Agnes Dyah Novitasari Lestari
Environmental Insight Journal Vol 2 No 2 (2026): July
Publisher : Postgraduate Faculty, Yogyakarta Institut of Technology, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37412/eij.v2i2.485

Abstract

The increasing use of petroleum-based plastics has led to various environmental problems due to their non-biodegradable nature. Therefore, the development of bioplastics derived from renewable resources has become a promising alternative, including sago-based bioplastics, which are abundant and have high starch content. This review article aims to examine recent advances in the preparation of sago-based bioplastics, their resulting properties, challenges in their development, and future application prospects. The method used in this study is a literature review of various relevant scientific articles related to the production and development of sago-based bioplastics. The findings indicate that the properties of sago-based bioplastics can be improved through formulation modification, the addition of plasticizers, reinforcement with fillers, and appropriate processing techniques. Sago-based bioplastics exhibit good biodegradability; however, they still face several limitations, such as low water resistance and mechanical properties that require further improvement. With advances in material modification technologies and formulation innovations, sago-based bioplastics have significant potential to become sustainable and environmentally friendly alternative materials.
Analisis Kualitas Air Sumur Gali di Kelurahan Arfai Kabupaten Manokwari, Papua Barat David Victor Mamengko; Agnes Dyah Novitasari Lestari; Sabarita Sinuraya; Pribowo Angling Kusumo; Sri Haryono; Dewi Eviane
Environmental Insight Journal Vol 2 No 2 (2026): July
Publisher : Postgraduate Faculty, Yogyakarta Institut of Technology, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37412/eij.v2i2.492

Abstract

Groundwater quality is an important parameter for determining the initial character of an area before infrastructure development. This study aims to determine the initial condition of groundwater quality around the planned construction site of Building X in the Arfai Village, Manokwari, based on physical, chemical, and microbiological parameters. Groundwater samples were taken from two wells located near the activity site, namely the Financial and Development Supervisory Board well and the Religion Governemntal Offive office well. The samples were analyzed using applicable water quality testing methods and compared with the class 2 river water quality standards in Government Regulation of the Republic of Indonesia Number 22 of 2021 Appendix VI and the drinking water quality standards in Regulation of the Minister of Health of the Republic of Indonesia Number 2 of 2023. For physical parameters, the water temperature was between 29.8–30.0°C, electrical conductivity was 332–580 µS/cm, and the concentrations of TDS, TSS, and turbidity were relatively low. Chemical parameters measured were neutral to slightly alkaline pH (7.16–7.66), BOD <2 mg/L, COD <3 mg/L, and DO of 4.3–5.1 mg/L, indicating low organic matter load. Concentrations of sulfate, nutrients, fluoride, and dissolved metals were relatively low, while oil and grease and total detergent did not indicate significant pollutant input. Microbiological parameters such as fecal coliform and total coliform were also at very low concentrations or below the detection limit. Overall, groundwater quality at both observation points remained in good condition and did not show significant anthropogenic pressure.
EFEKTIVITAS METODE SAND FILTER DALAM MENURUNKAN TINGKAT KEKERUHAN DAN KADAR E.COLI PADA AIR SUMUR Bertha Mangallo; Reynom Alfontus; Agnes Dyah Novitasari Lestari
Jurnal Natural Vol. 19 No. 1 (2023): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v19i1.210

Abstract

This study aims to determine the effectiveness of the sand filter method in reducing turbidity and e.coli levels in dug well water. The research method involved preparing filter media consisting of sand and beach pebbles, charcoal from coconut shells, pottery made from clay, and palm fiber. Water treatment is carried out using a filtration column containing filter media. The characteristics of dug well water before processing showed a turbidity level of 6.5 NTU and levels of e.coli ≥1898 CFU/100 mL. The results of the analysis of the quality of processed water using the sand filter method show that the effectiveness of the sand filter method in reducing turbidity levels reaches 100% while reducing e.coli levels reaches 95%.
Kualitas Air Sumur Dekat SPBU Rendani Kelurahan Wosi Kecamatan Manokwari Barat Kabupaten Manokwari Provinsi Papua Barat David Victor Mamengko; Syafrudin Raharjo; Pribowo Angling Kusumo; Agnes Dyah Novitasari Lestari
Jurnal Natural Vol. 19 No. 2 (2023): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v19i2.256

Abstract

Wells are a groundwater source that is widely used by Indonesian citizens for sanitation and hygiene purposes. Well water quality is influenced by internal factors, namely the condition of the well itself, and external factors, namely the environment around the well. This research aims to analyze the quality of well water near the Rendani gas station, Wosi Village, West Manokwari District, Manokwari Regency, West Papua Province and compare it with the necessary water quality standards. In Indonesia, to guarantee the suitability of well water, water quality standards are stipulated in the Regulation of the Minister of Health Republic of Indonesia No. 32 of 2017. The research results show that the TDS, temperature, turbidity, sulfate, nitrate, iron, manganese and pH parameters meet the quality standards, while the chemical parameters nitrite, chromium (VI) and total coliform do not meet the quality standards. Therefore, it is necessary to treat the water to reduce levels of nitrite, chromium (VI) and total coliform before well water is consumed by residents.
Co-Authors Ahmad Muin Ali Aulia Ghozali Antoni Ungirwalu Bertha Mangallo Bertha Mangallo Bertha Mangallo Chafid Fandel Darma Santi David Victor Mamengko David Victor Mamengko Dewi Eviane Dewi Eviane Dewi Eviane Dewi Rahyuni Dewi Rahyuni Dewi Rahyuni Dwi Siswanta Dwi Siswanta Dwi Siswanta Eko Sugiharto Eko Sugiharto Evelina Somar Gabriella Shine De Kweldju Ishak Musaad Louisa Jessica Permatasari Mamengko, David Victor Mirna Husen Muchammad Fauzan Kuri Pasai Mudasir Mudasir Muin, Ahmad Murtihapsari . Murtihapsari, Murtihapsari - Musaad, Ishak Naibaho, Julius Nur Iswanto Nur Iswanto Nur Iswanto Nur Iswanto Nurul Fajeriana M Ponisri, Ponisri Pribowo Angling Kusumo Pribowo Angling Kusumo Pribowo Angling Kusumo Ramlah Ramlah Ramlah, Ramlah - Reynom Alfontus Rina Ernawati Rizky Fian Azhari Ronny Martien Sinuraya, Sabarita Somar, Evelina Sri Haryono Sukmawati Sukmawati Sukmawati, Sukmawati Susilowati Susilowati Susilowati Syafrudin Raharjo Yori Turu Toja, Yori Turu Yoshua