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All Journal Peronema Forestry Science Journal Journal of Tropical Soils Wahana Forestra: Jurnal Kehutanan SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Forest and Society EQIEN - JURNAL EKONOMI DAN BISNIS Minda Baharu PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Journal of Sylva Indonesiana Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian UNDIKMA Abdi-Dharma Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Prosiding Seminar Hasil Penelitian dan Pengabdian Kepada Masyarakat
Ridwanti Batubara
Universitas Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Peronema Forestry Science Journal

 1 
Tingkat Kesukaan Konsumen Terhadap Teh Gaharu (Aquilaria malaccensis Lamk.) Berdasarkan Bentuk dan Ukuran serta Kandungan Antioksidan Simatupang, Jhonny; Batubara, Ridwanti; Julianti, Elisa
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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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.
KELEMBAGAAN KELOMPOK TANI HUTAN DI KECAMATAN BARUSJAHE KABUPATEN KARO SUMATERA UTARA br Ginting, Laura Julita; Batubara, Ridwanti; Herianto, Herianto
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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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
Pengawetan Kayu Karet (Hevea braziliensis MUELL Arg) Menggunakan Asam Borat (H3BO3) Dengan Metode Pengawetan Rendaman Panas Dingin Preserving of Rubber Wood (Hevea braziliensis MUELL Arg) Using Boric Acid (H3BO3) With Cold and Hot Soaking Preservation Nadya Putri; Evalina Herawati; Ridwanti Batubara
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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The objectives of this research were to calculate the amount of retention and penetration scores and to examine the stability of dimension and strength of rubber wood after conserving with boric acid preservative (H3BO3). The method applied in this research was hot and cold soaking . After a test sample was preserved with boric acid, then its retention, penetration, and ASE scores were calculated, and the examination of MOE and MOR was conducted eventually. In this research, the best concentrate was gained at treated concentrate 3 % for the retention score, penetration and ASE scores are 1.39 kg/m2, 0.89 mm, and 2.65 %. While the highest MOE and MOR score was gained at 0% concentrate (controlled) with 17619 kg/m2 and 210 kg/m2. The retention and penetration scores increased as the concentrate increased. But the distribution the preservative was able to decrease the strength of wood. Keywords : preservation, rubber wood, boric Acid, MOE, MOR
Co-Authors Abdul Rauf Afifuddin Dalimunte Ameilia Zuliyanti Siregar Anita Zaitunah Arida Susilowati Iswanto Bejo Slamet br Ginting, Laura Julita Dahrul Siregar Delvian Delvian Elisa Julianti Elisa Julianti Endah Nurhidayah, Rika Evalina Herawati Fadhilla, Suri Fauzia Dewinta, Astrid Frastika, Sintike Harisyah Manurung Harpah, Novrida Hasman, Haryaji Catur Putera Herianto, Herianto Irmawati Irmawati Irni, Julaili Ismayadi, Ismayadi Julianti, Elisa Latifah Hanum Lubis, Muhammad Safi Luthfi Hakim M. Basyuni Masitta Tanjung Nadya Putri Nasution, Zaid Perdana Nelly Anna Netti Herlina Novia Dwitanti Novita Anggraini Oding affandi Oding Affandi Pandiangan, Paulus Pinem, Laura Juita Pratomo, Bayu Purba, Marsen Rahmawaty, Rahmawaty Rahmi Utami Ridhoi Meilona Purba Rohani, Ade Sri Saleha Hannum Saleha Hannum Sari, Yasmine Anggia Simatupang, Jhonny Situmorang, Syafizal Helmi Surjanto Surjanto Suryati, Irsa’ Syahputra, Orang Kaya Hasnanda Tarmidi Tarmidi Ulfa, Mariah Warjio Warjio, Warjio Wulan Syahputri Zuliyanti, Ameilia