Sugar palm bunch/SPB (Arenga longipes Mogea) waste is a lignocellulosic material derived from the harvest of sugar fruit (kolang-kaling). Therefore, this study aims to examine anatomical, physical, chemical, and mechanical characteristics SPB. The anatomical characterization results showed that SPB had two forms fibrovascular bundles (FVBs), namely large small. Based on morphology, fibers length, diameter, average lumen cell wall thickness approximately 1346.42 ± 415.71 μm, 20.05 3.81 11.82...

Medicinal plants in North Sumatra Province can be found several places, including on agroforestry land, either planted or grown wild. This study aimed to identify the medicinal land at Telaga Village. research was conducted Langkat District, Sumatra, Indonesia, by survey method collect making 16 plots field. The results showed that there were 199 individuals plant. Senduduk Bulu (Clidemia hirta) dominant plant (61 individual plant) followed Ilalang (Imperata cylindrical) (17 plant),...

Abstract Liquid palm sugar is produced from Arenga longipes . easily oxidized than contaminated by fungi and bacteria. This study aims to measure the effectiveness of powdered cinnamon in inhibiting bacterial growth its potential as a preservative for liquid sugar. Making area done boiling 5 liters tapping sap 4 hours at 100 °C until thickens. During sap, powder was added with various concentrations, namely 0%, 2%, 4%, 6%, 8%, 10% (w/w). The results showed that addition had no significant...

Abstract Besides producing honey, honey bees can also produce other products such as propolis, royal jelly, and pollen that provide economic benefits for farmers. The success of bee cultivation is influenced by the availability flowers feed. research conducted aims to information data on feed contained in Flora Nauli Beekeepers site. Data collection methods were carried out conducting direct observations, inventory interviews obtain form plants, plant flower season. Furthermore, literature...

Abstract Purun is commonly used in crafts like mats, hats, and tissue boxes, but synthetic dyes these products have negative environmental impacts. This research aims to study the use of natural purun fibre Natural were extracted using distilled water 96% ethanol from purple sweet potato, turmeric, mango leaves. was treated with 2% mixed 5% vinegar acid, then dried observe color changes assess effect on fiber dimensions. Extraction yields ranged 10% 16%, no significant differences between or...

Abstract Aren ( Arenga longipes Mogea) is a Non-Timber Forest Product utilized by the community in Rumah Sumbul Village, Sibolangit District, Deli Serdang Regency. This village produces lot of sap and tuak. The aim this study was to identify aren palm species, economic value utilization productivity Village. Morphological identification plants used confirm type species. Multi-benefits were identified based on interviews through questionnaires. developed A. . Sap calculated daily production...

Abstract Currently chemical fertilizers are rare and expensive, besides the use of for a long time without providing organic materials can damage environment, especially in Ultisol which poor matter. Biosilica is silica fertilizer made from ingredients such as palm oil shells, paddy rice grains others. Silica has been proven to be able increase growth production plants compared NPK fertilizer. This research aims determine effectiveness using biosilica improve soil properties Ultisol. used...

Tanaman kakao merupakan salah satu tanaman perkebunan yang banyak memberikan sumbangan kepada devisa negara dalam komoditi ekspor. Penelitian ini dilakukan di kabupaten tapanuli Selatan kecamatan batang angkola. Tujuan penelitian mengetahui tingkat motivasi petani budidaya angkola selatan. Sampel diambil adalah 30 orang. Sumber data digunakan primer dan sekunder. Metode analisis diperoleh melalui wawancara pengamatan deskripsi secara kualitatif. Hasil menunjukkan bahwa Kabupaten selatan...

Tanaman buah dalam pot (tabulampot) merupakan teknik budidaya tanaman yang dapat dilakukan di lahan terbatas seperti lingkungan rumah. Pesatnya pembangunan fisik sekitar Lingkungan IV Kelurahan Gedung Johor berdampak pada banyaknya penebangan pohon, berkuranya ruang terbuka hijau, panasnya suhu, berkurangnya keasrian lingkungan, dan timbulnya penyakit sosial masyarakat. Pelatihan ini bertujuan untuk meningkatkan pemahaman serta minat pengembangan tabulampot memberikan secara gratis guna...

Abstract. Batubara R, Hanum TI, Affandi O, Nurminah M, Winarni I, Hannum S, Yasmin OY, Chery SC, Dalimunte A. 2025. Proximate and phytochemical analysis of Acanthus ilicifolius hot water extract from three different growing locations. Biodiversitas 26: 1641-1651. Jeruju (Acanthus ilicifolius) is a tide-dependent plant often obtains more freshwater supply. The chemical composition this needs to be explored so that consumers can obtain the required information, particularly regarding use...

Abstract. Rahmawaty, Frastika S, Rauf A, Batubara R, Harahap FS. 2020. Land suitability assessment for Lansium domesticum cultivation on agroforestry land using matching method and geographic information system. Biodiversitas 21: 3683-3690. is one of the multipurpose tree species (MPTS) commonly found lands in Sumatra. This study aimed to evaluate actual classes L. map potential system (GIS). The was conducted Sei Bingai Sub-district, Langkat District, North Sumatra, Indonesia. A survey...

Abstract. Batubara R, Surjanto, Hanum TI, Handika A, Afandi O. 2020. Phytochemical screening and antioxidant activity of agarwood leaves (Aquilaria malaccensis) from two sites in North Sumatra, Indonesia. Biodiversitas 21: 1588-1596. Agarwood gaharu malaccensis Lamk) has an which can reduce free radicals. This research was conducted to analyze the chemical compounds agarwood, activities different grown sites, Laru, Hutanabolon Village. Ethanol extracts (EEAL) were obtained through maceration...

To address concerns over plastics in the global environment, this project produced three wood composites (WPCs) which could divert from waste stream into new materials. The materials made had a ratio of 85%:15%, 90%:10%, and 95%:5% low density polyethylene (LDPE) to powder were using dissolution method. Physical mechanical properties each WPC evaluated according Japanese Industrial Standard (JIS) A 5908:2003. Their degradation nature was through graveyard test assay conducted Coptotermes...

The communities who live around Sibolangit Tourism Park have developed nontimber forest products (NTFP) in their own agroforestry lands. This research evaluates the potential economic and development prospects from NTFP by examining: (1) type of value community agrofrestry land, (2) contribution NTFPs on household income, (3) NTFP-based Park. was conducted two selected villages Park: Sembahe Village Batu Mbelin Village. took place over a period between June August 2016. Research data...

Abstract. Rahmawaty, Samosir JB, Batubara R, Rauf A. 2019. Diversity and distribution of medicinal plants in the Universitas Sumatera Utara Arboretum Deli Serdang, North Sumatra, Indonesia. Biodiversitas 20: 1457-1465. The found (USU) has potential to be utilized by local community meet their food needs. objectives this study were calculate species diversity, find out various parts for purposes map arboretum. Survey interview methods used collect data. diversity was determined using...

Abstract Gaharu (agarwood) grows naturally in Sumatera, especially Middle Tapanuli regency. The development of knowledge and research about gaharu leaf has been used as raw material for brewed beverage or tea. purposes this were to observe the tea that by looking at chemical compound contained which function antioxidant know activity tannin content leaf. from 2 growing sites (Sigiringgiring village S. Kalangan II village) was identified, then processed into simplicia extracted with 96%...

The existence of trees in the cities is very important. Trees play an important role as absorber CO2 and a storage facility for carbon (C). This study aimed to classify map tree damage Western Part Medan City Green Belts. experiment was conducted using Forest Health Monitoring (FHM) classification classes determined based on scoring index values USDA Service. results showed that there were 46 healthy trees, 976 1114 lightly damaged 167 medium 9 dead trees. level dominated by class. If health...

Abstract. Rahmawaty, Frastika S, Marpaung RME, Batubara R, Rauf A. 2019. Short Communication: Use of Geographic Information System for mapping Aquilaria malaccensis land suitability in North Sumatra, Indonesia. Biodiversitas 20: 2561-2568. The (GIS) can be applicated the field forestry and agriculture, such as part evaluation. agroforestry Sumatra Province is important. Commonly, were planted by community Langkat Deli Serdang District. This study aimed to map Telaga Village, Sei Bingai Sub...

Abstract. Batubara R, Wirjosentono B, Siregar AH, Harahap U, Tamrin. 2021. Bioactive compounds of ethanol extract from agarwood leaves (Aquilaria malaccensis) and antimicrobial activity against bacteria fungi growing on the skin. Biodiversitas 22: 2884-2890. Agarwood plants malaccensis Lamk.) provide numerous benefits have been cultivated by people. The containing various compounds, such as flavonoids, glycosides, triterpenoids tannins with antibacterial antifungal activities, were reported...

Agarwood (Gaharu) leaves have been used as raw material for tea. This study aims to identify the secondary metabollites and tannin content from two species agarwood (Aquilaria malaccensis Lamk Wikstroemia tenuiramis Miq) sited in Mandailing Natal Regency. The were extracted with ethanol phytochemical test. results showed that positive alkaloids, flavonoids, steroids/triterpenoids, tannin. of W. was 4,95 % A. 5,62 respectively.

Kemenyan (Styrax sp.) is a latex-producing plant in North Sumatra Province that needs to be developed maintain its sustainability. At this time, Styrax sp. began planted together with other crops. This study aims determine the characteristics of growing land from aspects soil physics, chemistry, biology, climate and rainfall. Secondly, evaluate map suitability Humbang Hasundutan Regency. uses survey method by taking samples purposively based on unit. was conducted three villages...

Agarwood tree (Aquilaria malaccensis Lamk) is a from the Thymeleaceae tribe that has high selling value. The part often used sapwood of agarwood tree, as base for perfumes and traditional medicines. farmers in Langkat have their leaves tea drinks, brewing aloes leaves. Before being widely produced by community, it necessary to test safety leaf products through skin sensitization test.To find out whether steeping irritate or not.The method using animals namely albino rabbits many 15 tails,...