Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Peronema Forestry Science Journal Journal of Tropical Soils ABDI MOESTOPO: Jurnal Pengabdian pada Masyarakat Prosiding Konferensi Nasional PKM-CSR Aptekmas : Jurnal Pengabdian Kepada Masyarakat
Ridwanti Batubara
Universitas Sumatera Utara
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 8 Documents
Search
Journal : peronema forestry science journal

 1 
TINGKAT KEKUATAN ANTIOKSIDAN DAN KESUKAAN MASYARAKAT TERHADAP TEH DAUN GAHARU (Aquilaria malaccensis Lamk) BERDASARKAN POHON INDUKSI DAN NON-INDUKSI Putri Andaria Nasution; Ridwanti Batubara; Surjanto Surjanto
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.402 KB)

Abstract

During the long enough harvesting cycle, aloes leaves can be used as medicine and poured drink that has a role as antioxidants. This research was to study the societies predilection level to aloes tea and the strength of aloes leaves antioxidant activity based on the induction and non-induction tree. This research used 1,1-diphenyl-2-picrylhydrazil (DPPH) method with the observation parameter are the percentage of free radicals submerged at the 60th minute with different concentration (40 ppm, 60, ppm, 80 ppm and 100 ppm) and the value of IC50 (Inhibitory Concentration) was analyzed by regression similarity. The result of antioxidant activity observation by using the UV-Visible light Spectrophotometer at the swell length of 516 nm showed that the result of aloes leaves simplicia ethanol extract (EESDG) induction and non-induction had IC50 value of 99.42 ppm and 70.40 ppm. The result of EESDG had a significantly antioxidant activity. The hedonic test results showed that the stroge of aloes leaves for 0 month were the most predilection in the society due to the taste at induction treatment with the taste score 3.83 but due to the aroma and colour, had the same value 3.10 and 3.83. Aloes leaves tea at the 2 month storage which the most predilection in society was at the non-induction treatment, by the score of taste, aroma and colour were 3.30, 2.80 and 3.80. Keywords: Aloes tea, antioxidant activity, induction and hedonic test.
KELEMBAGAAN KELOMPOK TANI HUTAN DI KECAMATAN BARUSJAHE KABUPATEN KARO SUMATERA UTARA Laura Julita br Ginting; Ridwanti Batubara; Herianto Herianto
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.341 KB)

Abstract

Institutional has an important role in supporting the people’s forest management. The institution started from a group which has the same characteristics and purpose. The purpose of this study is to know the institutional system of forest farmer groups in the forest management, such as land management activities, structural and cultural aspects, institutional objectives, membership and leadership, and institutional capacity in the Rumanis Village, Pertumbuken Village, and Sikab Village. The results of this research showed that the land management activities include: land cleanup and nurseries, weeding, replanting, thinning, and fertilization. Leader in select based professionalism owned by the leadership. Institutional system of forest farmers groups in district of  Barusjahe has the same purpose to reduce deforestation and made members better. Institutional capacity is still as organizer of counseling and help to solved the problems of farmers. Keywords: Institutional, Farmers Group, Forest
UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL DAUN GAHARU (Aquilaria malaccensis Lamk) BERDASARKAN UMUR POHON Reza Nugraha; Ridwanti Batubara; Herawaty Ginting
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.064 KB)

Abstract

Utilization of agarwood leaves(Aquilaria malaccensis Lamk.) suspected contain a chemical compound of the flavonoids those are flavones, flavonol and isoflavones so that the leaves used as brewed beverages which serve as antioxidant.Based on that description, researcher interested in knowing the content of chemical compounds class and test the antioxidant activity of ethanol extract of agarwood leaves (A. malaccensis Lamk.). previous research does not regard age of the tree which is taken its leaves, so that it needed to review that based on the age of the tree. This research used the trees in age 4 and 7 years  after  those were planted in the field. This study aims to knowing chemical compounds class that contain in agarwood leaves (A. malaccensis Lamk.) which have a function as antioxidant from the tree in age 4 and 7 years; and to knowing the  power of the antioxidant activity from ethanol extract of agarwood leaves in age 4 and 7 years. This research is based on the method of Badan Ditjen POM year 1995. Based on the result of phytochemicals screening test of simplicia powder and ethanol extract of agarwood leaves which are the compounds of flavonoids, glycosides, tannins, steroid/triterpenoids, all of that are the active compounds of antioxidant. The result of antioxidant activity test using beam spectrophotometer showed in a wavelength 516 nm at 42th minutes is the result of ethanol extract of agarwood leaves in age 4 and 7 years have 27,83  ppm and 27,76  ppm of IC50. The result of this test is known that ethanol extract of agarwood leaves in age 4 and 7 years have a very strong antioxidant activity. Keywords : Agarwood leaves, Antioxidant, Phytochemicals, Age, IC50
Pemanfaatan Miang Bambu Betung (Dendrocalamusasper) Sebagai RacunTikus Utilization of “Miang”Dendrocalamus asper (bambu betung) as Rat Poison Frans Hutasoit; Yunus Afifuddin; Ridwanti Batubara
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (866.053 KB)

Abstract

The used chemically rodenticides to control  rodent pest can have a negatively impact on the environment and human life. Utilization of eco-friendly  natural materials  such as “miang “ Dendrocalamus asper(bambu betung)   is one kind of solution that is expected to be used as an alternative material to control rodent pest. This research purposed to determine the effectivenes of “miang” Dendrocalamus asper(Bambu Betung) against  mortality of white rats (Rattus novergicus, L.) by used the baits  mixed  with bamboo miang betung at various concentrations (0%, 5%, 10%, 15%, 20%) on rodent  morbidity and mortality rate . The results of this research  indicates that  mixing the bamboo miang into  baits,  effect on  mortality of rodent. The concentration of 10% of the measure is the most  effectivebecause has killed 100%  of  rats. This research indicates that miang bamboo high  toxicity and  very  potential to be develope as an eco-friendly plant-based rodenticides. Keywords: Dendrocalamus asper,miang, rat, rodenticides, mortality
EKSPLORASI TUMBUHAN OBAT DI KAWASAN GUNUNG SIBUATAN, KECAMATAN MEREK, KABUPATEN KARO, SUMATERA UTARA Eben Ezer Silaban; Yunus Afifuddin; Ridwanti Batubara
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1978.577 KB)

Abstract

The research of medicinal plants has been carried out in the mountain region Sibuatan, district Karo. The research aimed to identified the types of medicinal plants in mountain Sibuatan. Basic research methods in the development of medicinal plants had two stages. The first stage is the aspect of local knowledge with local knowledge survey. The second stage is the aspect of biodiversity with the analysis of vegetation data collection. They are 16 type of medicinal plants in mountain regions Sibuatan : Rubus reflexus, Impatiens balsamina, Nicolaia speciosa, Vitis gracilis, Solanum verbacifolium, Eupatorium odoratum, Nepenthes spectabilis, Nepenthes tobaica, Nepenthes gymnamphora, N.spectabilis x N. gymnamphora, Calamus diepenhorstii, Leersia hexandra, Melastoma candidum, Sida rhombifolia, Curculigo sp, Macodes petola. Keywords: Medicinal Plants, Mountain Regions Sibuatan, species.
Strategi Pemasaran Pinang (Areca sp.) Studi Kasus Kecamatan Sibolangit, Kabupaten Deli Serdang, Propinsi Sumatera Utara Pebriaman Kanista M; Yunus Afifuddin; Ridwanti Batubara
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (883.031 KB)

Abstract

Areca nut is one of North Sumatra’s potential export commodity which it’s management still did as partial. The purpose of this research is analyzing the income level of areca nut farmers, analyzing the commodity marketing system of areca nut, Identifying factors marketing development of areca nut in Sibolangit sub Deli Serdang regency North Sumatra Province. The election of research’s location did expressly. The decision of respondent did as purposive sampling, but processing factory and business administration which involved did as snowball sampling method with total sample of 38 (thirty eigth) respondents. Data collected through observation and analysis of the problem with interview using  questionnaires to farmers and entrepreneurs nut. Overall both primary and secondary data is tabulated next as needed. Result of this research is cultivation of areca nut did as polycultur with low technology application level will low productivity. In product marketing subsystem, trade chain is too long, that’s why product’s cost is not too efficient and than make double margin, than areca nut’s farmer price is too low, so areca marketing strategy priorities in District Sibolangit is forming farmer groups, cooperative village level, supervision of areca marketing system, human resource development and used of quality seeds. Keywords: management, marketing, areca nut and marketing strategy
Tingkat Kesukaan Konsumen Terhadap Teh Gaharu (Aquilaria malaccensis Lamk.) Berdasarkan Bentuk dan Ukuran serta Kandungan Antioksidan Jhonny Simatupang; Ridwanti Batubara; Elisa Julianti
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (686.553 KB)

Abstract

Agarwood (Aquilaria malaccensis Lamk.) are now popular to be exploited by farmers as a healthy drink. This research was done to study the effect of the shape and size of the tea from agarwood leaves on the consumers acceptance and antioxidant content. Agarwood leaves tea made in three forms: whole leave, cutted and fine particle size. Agarwood tea from these three size of shape and size then were evaluated of their hedonic level at 0 day and after 2 months of storaged in room temperatur by 50 panelists. The antioxidant activity was evaluated on methanol extracts from the three kinds ofagarwood leaves tea by using DPPH method after 2 month of storage. The result of the research shows that the froporcle of agarwood leave tea was more liked by panelists followed by the cutted leaves tea and the whole leaves tea had the lowest value of the hedonic score. The same result was found on the agarwood leaves tea that had been storage for 2 months, in the term of aroma, color for aswell as taste. The hedonic score of arom, color and taste of agarwood leaves tea after 2 months of storage till more than 3,00. It showed that the agarwood leaves tea still was accepted by panelists. The result of antioxidant activity evaluation showed that the fine particle size of agarwood leaves tea had the highest antioxidant activity. The value of IC50 of the agarwood leaves tea from the whole, cutted an fine size leaves were 85,89; 150,01; and 73,02 ppm respectively. Keywords: Agarwood leaves, organoleptic, antioxidant activity, tea
NILAI KESUKAAN KONSUMEN TERHADAP TEH DAUN GAHARU (Aquilaria malaccensis Lamk) BERDASARKAN LETAK DAUN PADA BATANG Nora Adriana; Ridwanti Batubara; Elisa Julianti
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.945 KB)

Abstract

Agarwood is a product of non-timber forest product are high value and are exported to foreign countries. Utilization of wood still focused on the use of agarwood tress, sap and skin is more often used as a distinctive aroma produced. Therefore, it is necessary to study on the effect of the aloe plant leaf leaves of that aloes. The purpose of this study is to determine the level of preference for the public to tea agarwood (A. malaccensis Lamk) based on the location of the leaves on the stem. The result showed that the level of public preference for tea agarwood (A. malaccensis Lamk) are on a scale of 3-4 is enough like to like. Consumers prefer tea from the leaves of the aloes are in the middle position on the aloe tree.   Keyword : agarwood leaves, agarwood tea leaves, the level preference.
Co-Authors Abdul Rauf Apri Heri Iswanto Arida Susilowati Iswanto Bejo Slamet Deni Elfiati Eben Ezer Silaban Frans Hutasoit Harisyah Manurung Herawaty Ginting Herianto Herianto Jhonny Simatupang Julianti, Elisa Laura Julita br Ginting Mariah Ulfa Mohammad Basyuni Nora Adriana Oding affandi Pebriaman Kanista M Purwoko, Agus Putri Andaria Nasution Rahmawaty, Rahmawaty Reza Nugraha Ryzki Pebriansyah Sintike Frastika Surjanto Surjanto Yunus Afifuddin