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All Journal Biology, Medicine, & Natural Product Chemistry Jurnal Nusa Sylva Buletin LOUPE (Laporan Umum Penelitian) Jurnal Agriment
Rositah, Erna
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Medicine & Pharmacology Public Health

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Antibacterial Potency and Physicochemical Profiles of Eucalyptus pellita Leaf Waste Essential Oil from PT Surya Hutani Jaya, East Kalimantan Wartomo, Wartomo; Aryani, Farida; Hernandi, Muhammad Fikri; Rositah, Erna; Ngapiyatun, Sri; Sari, Nur Maulida
Biology, Medicine, & Natural Product Chemistry Vol 12, No 2 (2023)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2023.122.693-697

Abstract

Eucalyptus is one of the fast growing species plants, currently used in the pulp and paper industry. The leaves of Eucalyptus are known as forest harvesting waste. This research aim to examine the antibacterial potency and the physicochemical profiles of Eucalyptus pellita leaves waste essential oils grown in PT Surya Hutani Jaya Site 32, East Kalimantan named EP B077. The essential oils distilled using water and steam distillation methods. Analysis of physicochemical profiles from this oil included yield, colour, refractive index, specific gravity, and chemical compositions by GC-MS. Antibacterial activity assayed by agar diffusion method against Staphylococcus epidermidis, Streptoccoccus sobrinus and Streptoccoccus mutans with slight modification. The results showed that EP B077 had the yellow colour, yield oils was 0.44%, 1.471 of refractive index, and 0.8706 of specific gravity. Chemical components of EP B077 oils were dominated by α-Pinene (40.36%), 1-β-Pinene (31.75%), Cyclohexene, 1-methyl-4-(1-methylethenyl)- (9.64%), Trans(β)-Caryophyllene (4.29%) and Eucalyptol (1,8-Cineole) (3.88%). This EP B077 oils was active to inhibit bacteria against S. epidermidis and S. sobrinus range from 9-15 mm, also against S.mutans ranging from 9-14 mm. Based on the results, this Eucalyptus pellita leaves named EP B077 had potential to develop as a new source of essential oil and antibacterial agents.
Phytochemical and Antioxidant Activity of Blumea balsamifera and Cordyline fruticosa Based on Ethnopharmacology Knowledge of Muara Tae Tribe, East Kalimantan Sari, Nur Maulida; Aryani, Farida; Wartomo, Wartomo; Hernandi, Muhammad Fikri; Rositah, Erna; Prayitno, Joko
Biology, Medicine, & Natural Product Chemistry Vol 12, No 1 (2023)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2023.121.273-280

Abstract

Plant use as traditional medicine is still widely practiced in Indonesia. Muara Tae tribe people, West Kutai regency are one of the regions that still rely on Blumea balsamifera and Cordyline fruticosa plants as traditional medicine. This study aims to determine the potential of Blumea balsamifera and Cordyline fruticosa leaves as medicinal plants with phytochemicals and antioxidants. Phytochemical analysis was tested using Harborne and Kokate methods. Antioxidant activity was evaluated by DPPH radical scavenging assay with slight modification. The results of the phytochemical analysis showed that the extracts of n-hexane, ethyl acetate, and ethanol from the leaves of Blumea balsamifera and Cordyline fruticosa contained alkaloids, tannins, and triterpenoids. Antioxidant activity of Blumea balsamifera leaves extract showed that the n-hexane extract display an ability to inhibit DPPH free radical by 50% at 100 ppm concentration, while ethyl acetate and ethanol extracts display an ability by 77% and 81% at 50 ppm concentration. IC50 value of ethyl acetate and ethanol extracts of Blumea balsamifera leaves sequentially were 23.68 µg/mL and 17.59 µg/mL. Antioxidant activity of Cordyline fruticosa leaves extract showed that the n-hexane and ethyl acetate extract display an ability to inhibit DPPH free radical by 45% and 56% at 100 ppm concentration, while ethanol extracts display an ability by 76% at 50 ppm concentration. IC50 value of ethyl acetate and ethanol extracts of Cordyline fruticosa leaves sequentially were 73.72 µg/mL and 20.17 µg/mL. Based on the results, Blumea balsamifera and Cordyline fruticosa leaves extracts had the potential to develop as natural antioxidants.
PARTISIPASI MASYARAKAT LOKAL DALAM KONSERVASI HUTAN MANGROVE DI WILAYAH TARAKAN, KALIMANTAN UTARA Siahaya, Martha E.; Salampessy, Messalina L.; Febryano, Indra G.; Rositah, Erna; Silamon, Rato F.; Ichsan, Andi C.
Jurnal Nusa Sylva Vol. 16 No. 1 (2016): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (173.37 KB) | DOI: 10.31938/jns.v16i1.181

Abstract

Salah satu aspek penting dari pembangunan berkelanjutan adalah partisipasi masyarakat lokal yang mengikuti. Di daerah perkotaan, partisipasi seperti itu diperlukan dalam konservasi hutan mangrove untuk mendukung pengembangan daerah pesisir. Penelitian ini bertujuan untuk menjelaskan upaya konservasi yang dilakukan hutan bakau oleh masyarakat lokal yang berada di daerah perkotaan. Metode yang digunakan adalah studi kasus, di mana pengumpulan data dilakukan melalui wawancara mendalam dan observasi partisipan. Hasil penelitian menunjukkan bahwa masyarakat menerapkan  pengetahuan  ekologi traisional dan  mendirikan  institusi  sehingga  pelestarian  mangrove tetap  terjaga. Pemerintah kota dan perusahaan lokal juga memainkan peran dengan mendukung upaya-upaya dibuat oleh komunitas lokal
Kalender Musim dan Peran Gender dalam Perladangan Masyarakat Dayak Bulusu di Desa Pungit Kecamatan Sekatak pada Masa Perubahan Iklim: Seasonal Calendar and Gender Roles in the Farming Practices of The Bulusu Dayak Community in Pungit Village, Sekatak Sub District During Climate Change Rositah, Erna; Muhammad Fikri Hernandi; Sari, Nur Maulida; Abdul Rasyid Zarta; Rudi Djatmiko; Dwinita Aquastini; Aprilianus Robert Lau
Jurnal Loupe Vol 19 No 02 (2023): Edisi Desember 2023
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v19i02.2926

Abstract

Secara historis masyarakat Dayak Bulusu tidak bisa dilepaskan dari sumber daya hutan. Secara ekonomi, lahan hutan menjadi tempat masyarakat berladang yaitu pertanian pada lahan kering dengan sistem gilir balik, menggunakan kearifan lokal dan tahapan perladangan yang dipraktekkan secara turun temurun. Fenomena perubahan iklim yang terjadi saat ini berdampak terhadap makhluk hidup dan lingkungan, termasuk ancaman bagi pertanian masyarakat. Penelitian ini bertujuan untuk mengkaji kalender musim perladangan dalam 1 periode tanam di tengah masa perubahan iklim dan peran gender dalam perladangan. Penelitian ini dilakukan di Desa Pungit Kecamatan Sekatak Kabupaten Bulungan Kalimantan Utara pada Bulan Juli-Agustus 2022. Pengambilan data dilakukan dengan teknik triangulasi yaitu FGD, observasi lapangan dan kajian literatur. Analisis data dilakukan secara deskriptif kualitatif. Kegiatan berladang Dayak Bulusu Desa Pungit Sekatak dilakukan dengan tahapan tertentu dimulai dari tahap pemilihan lokasi berladang dan penebasan pada Bulan Mei; penebangan dan pemotongan dahan ranting pada bulan Juni; pengeringan selama bulan Juni-Juli; pembakaran pada bulan kering yaitu Bulan Agustus-September; penanaman dilakukan Bulan September-Oktober dimana sudah mulai musim hujan; pemeliharaan yaitu setelah masa tanam hingga memasuki Bulan Pebruari yang dilanjutkan dengan pemanenan hingga bulan Maret. Laki-laki dan perempuan berperan penting dalam setiap tahap kegiatan berladang sesuai dengan porsi dan perannya masing-masing.
The Relationship Between the Physical Work Environment and The Performance of Oil Palm Harvesting Employees at PT. Alam Jaya Persada Aziza, Humairo; Ngapiyatun, Sri; Samyono, Adi; Rositah, Erna; Rahman, Arief; Wartomo
Jurnal Loupe Vol 20 No 02 (2024): December 2024
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v20i02.3173

Abstract

Work productivity is generally influenced by environmental conditions, where good conditions will facilitate the operations of an organization. The aim of the research is to assess the physical working environmental conditions of harvest work at PT. Alam Jaya Persada in Afdeling 2 and 3, knowing the performance of harvest employees, analyzing the relationship between the work environment and the performance of harvest employees in Afdeling 2 and 3. Quantitative method, the data used is direct observation data in the field, questionnaire data and is equipped with company data or documents as well as literature studies obtained from the internet. The research results show that the physical work environment at PT. Alam Jaya Persada is in good condition, as seen from the average employee response score on topographic indicators of 3.9, humidity and temperature of 3.7, cleanliness of the workplace of 3.8, work tools of 4.1, work facilities of 3. .9 means the whole category is good. Performance of harvest employees at PT. Alam Jaya Persada is good, as can be seen from the average employee response score on the quantity, quality and efficiency indicators of 4.2, work discipline of 4.1, all the average score results are good, and have a significant relationship between the physical work environment and performance with a significance value of 0.001 <0.05. A correlation coefficient of 0.413 means that the relationship is quite strong between the work environment and employee performance and is positive, which means that the relationship between the two variables is in the same direction, where the better the physical work environment, the better the employee's performance.
PENGARUH KESEHATAN DAN KESELAMATAN KERJA (K3) TERHADAP KINERJA KARYAWAN PABRIK KELAPA SAWIT DI PT. DSN Widodo, Mohamad Ali; Rositah, Erna; Winarni, Budi
JURNAL AGRIMENT Vol. 6 No. 2 (2021): Desember 2021
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v6i2.595

Abstract

This research is based on the importance of applying occupational health and safety to employees of palm oil mills, It is worth noting that by providing awareness to factory employees about occupational health and safety will improve the performance of these employees.The purpose of this research is to know the characteristics of factory employees in the production section and the influence of occupational health and safety on the performance of employees of palm oil mills production parts.The time and place of this research was conducted on December 2 to December 21, 2020 and took place at PT. DSN and located in Muara Wahau District. The research method used is quantitative by using the dissemination of statement questionnaires with variables of health, safety, and employee performance. Researcher data processing techniques use validity tests, reliability tests, and multiple linear regression analysis through spss 22 applications.From the results of research activities that have been conducted by researchers obtained data that shows that there is a positive and significant influence between occupational health and safety variables to the performance variables of factory employees.
Land Suitability Study For Oil Palm Plantations On The Politani Samarinda Oil Palm Experimental Garden Land Hamsin Ramadan, Laode Muh Asdiq; Kamarati, Kiamah Fathirizki Agsa; Rositah, Erna; Alim, Nurmaranti
JURNAL AGRIMENT Vol. 10 No. 1 (2025): Juni 2025
Publisher : Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/jurnalagriment.v10i1.3370

Abstract

In order to achieve optimal production, oil palm plants necessitate adequate conditions that are in balance with the intended growth requirements and the land conditions of the environment in which these plants are grown. This study aims to determine the land suitability classfication and \limiting factors for oil palm plants in the Politani Samarinda oil palm experimental plantation. This study uses a quantitative descriptive methoddology based on in field observations and literature reviews. Data obtained from field observations and literature reviews is classified depending on land characteristics. The data grouping resulted are tabulated and compared with the growth growing requirements for oil palm plants. According to the results of the semi-detailed land suitability analysis for oil palm plants in the Politani Samarinda oil palm experimental plantation. The Politani Samarinda oil palm experimental plantation has limited land suitability (S3) with soil depth as the limiting factor of rooting media (rc).
Level of Knowledge of Harvest Employees about Oil Palm Harvesting Techniques at PT. Alam Jaya Persada Ngapiyatun, Sri; Nailia , Sania Mafazatin; Rositah, Erna; Mirasari, Rossy; Anwar, Rusli; Wartomo; Aziza, Humairo; Zamroni, Ahmad
Jurnal Loupe Vol 21 No 01 (2025): Juni 2025
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v21i01.3339

Abstract

The increase in the number of areas of oil palm plantations and technology that continues to develop has an impact on the increasing need for human resources, especially labor. There are several stages of work in oil palm plantations that require special attention, one of which is oil palm harvesting work because this work requires skills other than physical strength. Harvesters are required to be skilled in harvesting and have knowledge of correct harvesting techniques both in terms of harvest quality and quantity because this work is directly related to fresh fruit bunches (FFB). The research aims to determine the characteristics and level of knowledge of harvesters regarding palm oil harvesting techniques. The data used is questionnaire data as primary data. Before being distributed to respondents, the questionnaire was tested for validity, then continued with a reliability test. The data was analyzed using mathematical calculations. Employees at PT. Alam Jaya Persada is male with 100%. The age of 100% harvest employees falls within the productive age group, namely 18-53 years. The majority of education, 69.4%, only received elementary school education. Workers who work between 1 year and more than 5 years amount to 75%.  Employee knowledge of palm oil harvesting techniques is included in the Good category.
Valuasi Jasa Ekosistem Hutan Tropis di Kalimantan Timur dengan Metode Benefit Transfer: Ecosystem Services Valuation for East Kalimantan Tropical Forest by Using Benefit Transfer Method Rahma, Nuzula Elfa; Rositah, Erna; Pramono, Dwi Agung; Widyasasi, Dyah; Fariyanti
Jurnal Loupe Vol 16 No 01 (2020): Edisi Juli 2020
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v16i01.73

Abstract

Ekosistem hutan hujan tropis merupakan sumber kehidupan dan penghidupan bagi masyarakat Kalimantan Timur. Sayangnya keberadaan hutan di Kalimantan Timur sering hanya dilihat dalam perspektif ekonomi saja. Untuk itu perlu adanya studi untuk mengetahui nilai manfaat jasa ekosistem yang dimiliki oleh hutan tropis di Kalimantan Timur secara menyeluruh bukan hanya aspek ekonomi saja, tetapi juga aspek ekologis dan sosial. Dengan tujuan itulah, penelitian ini dilakukan. Metode valuasi yang digunakan adalah metode benefit transfer dengan memanfaatkan database valuasi jasa ekosistem TEEB (The Economics of Ecosystems and Biodiversity), serta data luasan hutan Kalimantan Timur. Hasil penelitian ini menunjukkan bahwa nilai total ekonomi (Total Economic Value/TEV) ekosistem hutan tropis di Kalimantan Timur adalah sebesar 90.806.238.765 USD/tahun. Nilai TEV tersebut mencakup nilai manfaat jasa pendukung sebesar 0,24%, jasa penyediaan sebesar 45,11%, jasa pengaturan sebesar 17,31%, dan jasa kultural sebesar 37,34%.
Struktur Anatomi Kayu Mangium (Acacia mangium) di Areal Reklamasi Lahan Pasca Tambang Batubara: Anatomical Structure of Mangium (Acacia mangium) Wood in Land Reclamation of Post-Coal Mining Area Wartomo; Zarta, Rasyid; Rositah, Erna; Syafi&#039
Jurnal Loupe Vol 18 No 01 (2022): Edisi Juni 2022
Publisher : Jurusan Pertanian Politeknik Pertanian Negeri Samarinda Kampus Sei Keledang Jalan Samratulangi, Kotak Pos 192 Samarinda 75123

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/buletinloupe.v18i01.1012

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui struktur anatomi kayu Acacia mangium yang tumbuh di areal reklamasi lahan pascatambang batubara. Kayu Mangium yang digunakan untuk penelitian berdiameter > 22 cm dan berumur ± 7 tahun (berasal dari reklamasi lahan area KotaTenggarong). Penelitian dilakukan di Laboratorium Sifat Kayu dan Analisis Produk, Jurusan Teknologi Hasil Hutan, Politeknik Pertanian Negeri Samarinda. Pembuatan dan pengujian struktur anatomi kayu menggunakan standar IAWA. Analisa data menggunakan Rancangan Acak Lengkap dalam Percobaan Faktorial 3x3 dengan 3 x ulangan untuk struktur anatomi. Adapun hasil penelitian ini secara umum menunjukkan bahwa struktur anatomi kayu Mangium hasil reklamasi sama dengan yang berasal dari hutan tanaman yakni memiliki pori berbentuk oval, tata baur, soliter, ganda radial 2 – 3, bidang perporasi sederhana; jari-jari homogen berseri satu dan banyak, mengandung kristal; parenkim aksial bertipe paratrakeal jarang; Struktur anatomi kayu Mangium hasil reklamasi memiliki klasifikasi yakni sel pori : diameter (sangat besar), tinggi (pendek), jumlah per mm2 (sangat halus); sel jari-jari : tinggi (sangat halus), lebar (luar biasa pendek), jumlah per mm2 (sedang); serat : panjang (sedang), diameter (besar), lumen (sangat besar), dinding sel (tipis); letak contoh uji berdasarkan arah vertikal batang berpengaruh signifikan terhadap struktur anatomi kayu pada lebar dan persentase sel jari-jari; Letak contoh uji berdasarkan arah radial batang berpengaruh signifikan terhadap struktur anatomi pada jumlah sel pori; lebar, tinggi, jumlah dan persentase sel jari-jari; diameter serat dan lumen. Degradasi lahan (perubahan daya dukung tanah) dan tingkat kesuburan tanah yang rendah di areal reklamasi tambang batubara tidak memberikan pengaruh yang signifikan terhadap perubahan struktur anatomi kayu pada kayu Mangium terhadap degradasi lahan bekas tambang.
Co-Authors Abdul Rasyid Zarta Alim, Nurmaranti Anwar, Rusli Aprilianus Robert Lau Arief Rahman Aziza, Humairo Dwinita Aquastini Farida Aryani Fariyanti Hamsin Ramadan, Laode Muh Asdiq Ichsan, Andi C. Indra G. Febryano JOKO PRAYITNO Kiamah Fathirizki Agsa Kamarati Mirasari, Rossy Muhammad Fikri Hernandi Nailia , Sania Mafazatin Ngapiyatun, Sri Pramono, Dwi Agung Rahma, Nuzula Elfa Rudi Djatmiko Salampessy, Messalina L. Samyono, Adi Sari, Nur Maulida Siahaya, Martha E. Silamon, Rato F. Syafi&#039 Wartomo Wartomo, Wartomo Widodo, Mohamad Ali Widyasasi, Dyah Winarni, Budi Zamroni, Ahmad Zarta, Rasyid