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All Journal JURNAL SAINS PERTANIAN EQUATOR BERKALA SAINSTEK Innofarm : Jurnal Inovasi Pertanian Jurnal Perikanan dan Kelautan Jurnal Agroekoteknologi AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Biologi Tropis Jurnal Pertanian Agros KABILAH : Journal of Social Community JURNAL PERTANIAN PRESISI (JOURNAL OF PRECISION AGRICULTURE) Al-Khidmah Martabe : Jurnal Pengabdian Kepada Masyarakat Health Sciences and Pharmacy Journal Abdimas Galuh : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian kepada Masyarakat Nusantara Darmabakti : Junal Pengabdian dan Pemberdayaan Masyarakat SIMBIOSA IJPD (International Journal Of Public Devotion) AR-RIAYAH : Jurnal Pendidikan Dasar Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Journal of Community Development Empiricism Journal COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Bakti Budaya: Jurnal Pengabdian kepada Masyarakat IPSSJ Sasambo: Jurnal Abdimas (Journal of Community Service) Jurnal Pertanian Agros Sustainability Nexus: Journal of Agriculture
Ashari, Asri Mulya
Fakultas Pertanian Universitas Tanjungpura,
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : BERKALA SAINSTEK

 1 
Total Phenol and Antioxidant Activity of Ethanol Extract and Water Extract from Claw Uncariaa gambir Roxb Hartanti, Lucky; Ashari, Asri Mulya; Warsidah, Warsidah
BERKALA SAINSTEK Vol 9 No 3 (2021)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v9i3.27179

Abstract

Uncaria gambier Roxb is a plant from the Rubiaceae family, belongs to the Bajakah group and has been used empirically in the treatment of various types of diseases in the community. Besides being one of the industrial plants and export commodities produced in Sumatra and Kalimantan, gambier leaves is also used frequently in Indonesia, both for the pharmaceutical and cosmetic industries. As a result, market demand both nationally and internationally have increased. The aim of this research are determination of antioxidant activity of ethanol extract and aqueous extract of gambir claw using 1,1-diphenil-2-picrylhydrazyl (DPPH) and determination of total phenol using Calcetau folin reagent. Gambier plant samples were taken in the forest area around the Tanjungpura University campus, the claws were separated and dried at room temperature, then powdered and extracted by maceration using 70% ethanol pa and aquadest, then the extract was concentrated until it was ready to be tested for antioxidant activity and determination of total phenol. The total phenolic ethanol extract and aqueous extract of gambir claw were 224.66 mg GAE/g extract (GEA : Gallic Acid Eqivalent) and 299.08 mg GAE/g extract, respectively, while the antioxidant potential (IC50) was 39.566 μg/mL and 65.140 μg/mL, and the IC50 for comparison of Vitamin C was 7.02 μg/mL.
Decomposition Rate of Avicennia lanata in Bakau Kecil Mangrove Forest Area, Mempawah District Ashari, Asri Mulya; Warsidah, W.
BERKALA SAINSTEK Vol 9 No 4 (2021)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v9i4.27198

Abstract

Avicenna lanata is a type of mangrove that dominates the Mempawah Kecil Mangrove Forest. As many as 10 bacterial genera were identified from station 1 which is close to the influence of sea water, and 8 bacterial genera from station 2 which are close to residential areas. This study aims to determine the rate of decomposition of A. lanata leaf litter with 4 observation time periods with an interval of 15 days, namely the 15th, 30th, 45th and 60th days. The observations show that the rate of decomposition of the litter on the 15th day of observation is higher. Namely 0.206 gram/day at station I and 0.19 gram/day at station II, while the lowest rate of decomposition of litter occurred on the 60th day of observation, namely 0.112 gram/day at station I and 0.106 gram/day at station II. In addition, the parameters of physical and chemical of the environment such as DO, temperature, pH and salinity are in the range of their optimum values.
Co-Authors Amir Amir Amran, Arman Amriani Amir Amriani Amir Amriani Amir Andi Denisa Fadliah Nur Andi Hairil Alimuddin ANNE NURAINI Anthoni B. Aritonang Aprizkiyandari, Siti arham, ihsan Aritonang, Anthoni Batahan Ayu Wandira Bambang Kurniadi Bambang Kurniadi Basuni, Basuni Cucu Suherman Darussalam Darussalam, Darussalam Desriani Lestari Desriani Lestari Dewi, Suryani Dini Anggorowati Dirhana, Dirhana Dwi Zulfita dwi zulfita Fadliah Nur, Andi Denisa Fenandra, Adara Ferry Hadary Gusti Eva Tavita Helena, Shifa Ikha Safitri Irmadhani Nevi Aziis Lara, Lara Fitriyanti Lucky Hartanti Lucky Hartanti Lucky Hartanti Lucky Hartanti, Lucky Mega Sari Juane Sofiana Muliadi Muliadi Mustadjab, Andi Zulham Azwar Neva Satyahadewi Nurhasanah Nurhasanah Puji Ardiningsih Puji Ardiningsih Purwaningsih - Purwaningsih Purwaningsih Puspita Sari Putri, Muslimah Duwi Rafdinal Rafdinal Rikol, Romandrik Rini Susana Rita Kurnia Apindiati Rita Kurnia Apindiati Rita Kurnia Apindiati Rita Kurnia Apindiaty Riza Linda Sitti Fauziah Noer Sri Zha Zha Dilla Sukal Minsas Suluk, Afif Suparnawati Suparnawati Suparnawati, Suparnawati Syarif Irwan Nurdiansyah Tantri Palupi Warganda Warganda Warsidah Warsidah Warsidah Warsidah Warsidah Warsidah Warsidah, W. Warsidah, Warsidah WASI'AN, WASI'AN Yuliono, Agus