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Effective DNA extraction method for metagenomic analysis of rhizosphere bacteria from mangrove sediments Maysaroh, Siti; Ismet, Meutia Samira; Subhan, Beginer; Andini, Rita; Sembiring, Enny Rimita; Anggraini, Nurlita Putri
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.32850

Abstract

Mangrove, Rhizophora mucronata, grows in the intertidal area, which contains much organic matter and varying salinity. The organic matter content is influenced by the bacterial community that inhabits the ecosystem, but information regarding the bacterial community, especially in the mangrove root system, is not widely available. There are several challenges in completing this information, one of which is that the method used is still in a conventional form. Developments in environmental DNA analysis can support and complement this information. However, this method must be optimized because the organic matter content and salt variations affect the extraction results. Thus, this study aimed to determine the optimal approach for extracting bacterial DNA from mangrove sediments. The analysis used two methodologies: manual DNA extraction techniques based on buffer modification and DNA extraction kits. There were four different treatments, namely the soil DNA isolation plus kit (M1), the fecal / soil microbial quick-DNA miniprep kit (M2), glass powder with charcoal (M3), and glass powder with skimmed milk (M4). DNA samples were obtained from each method and assessed for concentration and purity using a nanodrop. In addition, the resulting DNA's quality was analyzed using 1.5% agarose. The results obtained were in the M2 treatment, which showed optimal results compared to the others. M2 uses a bead-based beating and spin column method to achieve optimal DNA concentration through high molecular weight. The DNA obtained was also protein-free, and several samples were contaminated with humic acid, namely KL.S1, KL.S4, and T7.S4.Keywords:Bacteria 16SBead beatingDNA ExtractionSedimentSpin column
Trust (Amanah) Competence Poerbantoro, Heri; Sukamto, Sukamto; Andini, Rita; Handayani, Tri; Sulistyawati, Dwi Retna
Journal Research of Social Science, Economics, and Management Vol. 3 No. 12 (2024): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v3i12.699

Abstract

This article aims to describe the relationship between the competence concept and the Islamic value of trust (amanah). Trust (amanah) competence is an ability of a person to incorporate a set of knowledge, skills, and trust based on the nature of integrity, sincerity, and responsibility, in order to obtain happiness and success. The new concept of competence requirement is expected to become the foundation for human resource development, so that competent professionals would avoid bad behavior and corruption. This study's contribution to the Resource-Based View Theory, particularly its emphasis on competence, is founded on knowledge and trustworthiness.
PENGARUH UKURAN PERUSAHAAN, SOLVABILITAS, PROFITABILITAS, UKURAN KAP, DAN OPINI AUDIT TERHADAP AUDIT DELAY: PADA PERUSAHAAN PROPERTI & REAL ESTATE YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE TAHUN 2020-2022 Yovita Verlinda Sari; Rita Andini
Jurnal Bingkai Ekonomi (JBE) Vol 10 No 1 (2025): Januari 2025: Jurnal Bingkai Ekonomi (JBE)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) - Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jbe.v10i1.445

Abstract

The goal of this research is to predict audit delay in Property and Real Estate businesess sector which is listed on the Indonesia Stock Exchange from 2020 until 2022, which is influenced by company size, solvency, profitability, public accounting firm (KAP) size, audit opinion. 92 companies became popilations in this research. After sampling using purposive sampling, 68 companies became the sample. Logistic regression is the analysis technique used in this research. This research results is partially the profitability have impact on audit delay, while the company size, solvency, public accounting firm (KAP) size and audit opinion has no impact on audit delay.
PENYUSUNAN LAPORAN KEUANGAN TERKOMPUTERISASI PADA UMKM DI KEDUNGMUNDU Andini, Rita; Ariesta, Marsiska
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2024): Volume 5 No 1 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i1.24006

Abstract

Kegiatan pengabdian ini bertujuan membantu para pemilik UMKM penganan kecil di daerah Kedung Mundu dalam menyusun dan merancang sistem laporan keuangan dengan cara memberikan pengetahuan tentang pencatatan, pengiktisaran, pengelompokan dan pelaporan keuangan secara sederhana serta membuat sistem laporan keuangan dengan aplikasi Microsoft excel. Pengumpulan data dilakukan dengan teknik dokumentasi, survei, dan observasi. Data yang digunakan adalah data primer dan data sekunder. Metode pelaksanaan kegiatan berbentuk pelatihan dan diskusi bersama serta uji coba sistem laporan keuangan sebagai bentuk evaluasi kegiatan. Hasil dari kegiatan ini adalah pemilik UMKM beserta staf admnistrasi bersemangat dan antusias mengikuti pelaksanaan kegiatan dari awal hingga akhir, bertambahnya pengetahuan dan pemahaman peserta pengabdian tentang siklus akuntansi dan transaksi keuangan
PENDAMPINGAN PERHITUNGAN BREAK EVEN POINT PADA PETERNAK AYAM “MASTER PITUNG” KABUPATEN KENDAL Utami Puji Lestari; Ahmad Dwi Nurdiyanto; Ika Susanti; Rita Andini; Fada’ Rafsanjani; Saidatun Hana
ADIMA Jurnal Awatara Pengabdian Kepada Masyarakat Vol 3 No 1 (2025): Januari
Publisher : Awatara Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61434/adima.v3i1.260

Abstract

Masalah pada pengebdian masyarakat ini ialah (1) Mitra belum memahami dengan baik arti penting dan manfaat menghitung BEP dalam usaha mereka. (2) Mitra belum mampu menghitung BEP dalam usaha mereka dan tidak mengetahui pada jumlah berapa (volume dan rupiah) usaha mereka tidak mendapatkan keuntungan dan tidak menderita keruagian. (3)Mitra belum bisa membuat perencanaan laba yang ingin dicapai terkait usaha mereka.Tujuan dari pengabdian Masyarakat ini ialah (1) Memahami dengan baik arti penting dan manfaat menghitung BEP dalam usaha peternakan ayam. (2) Mampu menghitung BEP dalam peternakan ayam dan mengetahui pada jumlah berapa (volume dan rupiah) usaha peternakan ayam tidak mendapatkan keuntungan dan tidak menderita kerugian. (3) Mampu menyusun perencanaan laba yang ingin dicapai terkait usaha peternakan ayam. Metode pengabdian dilakukan dengan metode ceramah dan diskusi. Kegiatan ini pelaku peternak ayam “Master Pitung” Kendal memberikan apresiasi yang baik memahami dan dapat menghitung Break Event Point. Kegiatan ini sangat bermanfaat dan harapannya dapat berkesinambungan agar dalam menjalankan usaha lebih tertata dan terstruktur. Perkembangan usaha lebih meningkat serta berdampak pada pendapatan laba yang meningkat.
Toxicity and antibacterial activity of Rhizophora apiculata mangrove using different solvent extraction : Toksisitas dan aktivitas antibakteri mangrove Rhizophora apiculata dengan pelarut ekstraksi yang berbeda Imanditya, Muhammad Fachriza; Ismet, Meutia Samira; Zamani, Neviaty Putri; Natih, Nyoman MN; Srimariana, Endang Sunarwati; Andini, Rita; Anggraini, Nurlita Putri
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 28 No. 1 (2025): Jurnal Pengolahan Hasil Perikanan Indonesia 28(1)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v28i1.60031

Abstract

Rhizophora apiculata merupakan jenis mangrove yang banyak digunakan sebagai obat tradisional. Potensi ini dihasilkan oleh kandungan metabolit sekunder yang dapat dipengaruhi oleh kondisi lingkungan, usia, dan beragam faktor lainnya. Penelitian ini bertujuan untuk menentukan pelarut terbaik ekstrak R. apiculate berdasarkan parameter toksisitas dan antibakteri. R. apiculata yang digunakan dalam penelitian ini berasal dari daerah Kuala Langsa dan Pulau Telaga Tujuh (Aceh Timur), dengan ukuran diameter pohon yang berbeda (2,4; 4,8; 5; 13; 23,3; & 26 cm). Ekstraksi dengan pelarut metanol 99,8% (MeOH) dan etanol 99,9% (EtOH) dilakukan dengan maserasi (3x24 jam), ekstraksi dengan pelarut akuades dilakukan dengan perebusan (15 menit pada suhu 85-90°C). Ekstraksi menggunakan perbandingan 10:1 (v/w) dengan 2 g serbuk simplisia dan 20 mL pelarut. Uji toksisitas dilakukan dengan metode brine shrimp lethality assay dan uji antibakteri menggunakan metode disk diffusion assay. Uji toksisitas menunjukkan ekstrak etanol memiliki nilai toksisitas tertinggi dengan nilai LC50 sebesar 26,879 μg/mL. Ekstrak akuades menghasilkan zona hambat tertinggi dengan nilai 11,37±0,85 mm pada bakteri Escherichia coli dan 17,67±1,19 mm pada bakteri Staphylococcus aureus. Hasil ANOVA dua arah menunjukkan pelarut berpengaruh nyata terhadap zona hambat bakteri (p<0,05), sementara diameter pohon tidak berpengaruh nyata (p<0,05). Ekstrak pelarut etanol menghasilkan nilai toksisitas tertinggi, sedangkan ekstrak pelarut akuades menghasilkan zona hambat terbesar.
PENINGKATAN KOMPETENSI MANAJEMEN SUMBER DAYA MANUSIA UNTUK PENGUATAN KINERJA KOPERASI DI KOTA SEMARANG Andini, Rita; Nurdiyanto, Ahmad Dwi; Mohklas, Mohklas; Hidayati, Salma Aprilia; Pangesti, Vivi Setyo
Aspirasi Masyarakat Vol 2 No 3 (2025): November
Publisher : ICON Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71154/cy71yj16

Abstract

This community service activity aims to improve human resource (HR) management competency to strengthen the performance of cooperatives in Semarang City. The main problems faced by cooperatives are low managerial skills, a lack of HR development planning, and the absence of an objective performance evaluation system. The activity was implemented through a participatory approach that included interactive training, field mentoring, and applied evaluation. The program targets cooperative administrators and staff directly involved in organizational management. The results of the activity showed a 78% increase in participants' managerial competency, a 65% increase in work planning capabilities, and a 23% increase in operational efficiency. In addition, the Semarang City Cooperative HR Communication Forum was established as a form of sustainability for the activity. This training successfully shifted the paradigm of cooperative HR management from merely administrative to a strategic, competency-based system. This community service activity made a real contribution to increasing cooperative competitiveness, strengthening a collaborative culture, and establishing a HR development model that can be replicated in other regions.