scholarly journals The technique for separation and purification of gondorukem (gum rosin) from pine gum (pinus merkusii) with a simple distillation method

2021 ◽  
Vol 1899 (1) ◽  
pp. 012038
Author(s):  
M Natsir ◽  
M Nurdin ◽  
A Ansharullah ◽  
M Z Muzakkar ◽  
E Trimutia ◽  
...  
Keyword(s):  
Distillation Method ◽  
Separation And Purification ◽  
Simple Distillation ◽  
Gum Rosin ◽  
Pinus Merkusii

scholarly journals PENILAIAN KESEHATAN KEBUN BENIH SEMAI Pinus merkusii DENGAN METODE FHM (FOREST HEALTH MONITORING) DI KPH SUMEDANG Health Assessment for Seedling Seed Orchard of Pinus merkusii Using FHM (Forest Health Monitoring) Method in KPH Sumedang

2019 ◽  
Vol 9 (2) ◽  
pp. 99-108
Author(s):  
Supriyanto . ◽  
Taufik Iskandar
Keyword(s):  
Health Monitoring ◽  
Forest Health ◽  
Seed Orchard ◽  
Tree Damage ◽  
Damage Level ◽  
Seedling Seed Orchard ◽  
Forest Health Monitoring ◽  
Gum Rosin ◽  
Damage Condition ◽  
Pinus Merkusii

Pine (Pinus merkusii) is tree species that provides timber and gum rosin. To meet the needs of wood and non wood (gum rosin) products, planting by using superior or high quality seeds are needed. Seed procurements for planting are obtained from seedling seed orchard (SSO). However, Cijambu’s SSO was attacked by pine woolly aphid (Pineus boerneri). Therefore, assessment of Cijambu’s SSO needs to be done to evaluate the severity pest attacks that could affect to the quality and the quantity of seed production. Forest Health Monitoring (FHM) method is one of the methods to assess the health level of a stand. The number of trees found in all cluster plots in Cijambu’s SSO were 270 trees. Based on the value of the VCR (Visual Crown Rating), the trees located in all cluster plot have health level between low to high. Based on the value of the VCR showed 38.52% (104 trees) having VCR’s value was high, 49.26% (133 trees) having VCR’s value was middle; 12.22% (33 trees) having VCR’s value was low; and no tree having very low VCR’s value. The average of VCR’s value in all cluster plots were 3.25 and classified as middle health. Based on the value of TDLI (Tree Damage Level Index) from 270 trees in all cluster plot showed that 189 trees (70.00%) in healthy condition; 69 trees (25.56%) in slight damage condition; 11 trees (4.07%) in middle damage condition; and 1 tree (0.37%) in heavy damage condition. The value of damage in all cluster plots (ALI) was 261.22 and classified as in health condition. The trees located in all cluster plots were mostly suitable to be seed sources as 242 trees (89.63%), while 28 trees (10.37%) were not suitable for seed sources.Keywords: Forest Health Monitoring, Pinus merkusii, seedling seed orchard, Tree Damage Level Index, Visual Crown Rating

scholarly journals KARAKTERISTIK CAMPURAN ASPAL PORUS DENGAN SUBSTITUSI GONDORUKEM PADA ASPAL PENETRASI 60/70

2018 ◽  
Vol 1 (3) ◽  
pp. 657-666
Author(s):  
Leni Arlia ◽  
Sofyan M. Saleh ◽  
Renni Anggraini
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Durability Test ◽  
Porous Asphalt ◽  
Gum Rosin ◽  
Asphalt Content ◽  
The Stability ◽  
Rosin Gum ◽  
Almost All ◽  
Pinus Merkusii

Abstract: Porous asphalt has low stability but has high permeability caused by the amount of voids in mixture. For that need to be added other materials to increase the value of the stability on a mixture of pavement. . In this study, the added material used is gum rosin. Gum rosin is obtained by distillation/distillation of the sap from the tree pinus merkusii shaped solid clear yellow to dark yellow. The objecteve of this research is to determine the characteristics of porous asphalt mixture by substituting gum rosin on asphalt penetration 60/70. The specimens preparation of Optimum Asphalt Content (OAC) followed Australian Asphalt pavement Association (AAPA) Method by  parameter of Cantabro Loss (CL), Asphalt Flow Down (AFD), and Voids In Mix (VIM). Open graded  aggregate was applied and variation in bitumen content of 4,5 %; 5%; 5,5%; 6%; and 6,5% excluding gum rosin. Marshall test and calculatio, CL, and AFD were conducted afterward to obtain OAC. Subsequently, the OAC obtained was used to prepare some specimens of the OAC with  variations  ± 0.5 from the OAC and gum rosin variations of 2%, 4%, 6%, and 8%. Permeability and durability test then required specimens at the best optimum asphalt content. Based on this research, the content of the best OAC was 5.56% with gum rosin content of 8% as bitumen substitution material. Besides, almost  all parameter values met the specification of the AAPA (2004). The addition of rosin affect the value of the characteristic of Marshall, CL, and AFD, which increasing the value of stability, VIM, CL, and AFD  along with the increasein percentage of gum rosin. According to the best OAC the value of stability was 554.81 kg, the value of VIM was 18.04%, the value of CL was 20.66%, and the value of AFD was 0.28%.Abstrak: Aspal porus memiliki stabilitas yang rendah namun memiliki permeabilitas tinggi yang disebabkan oleh banyaknya rongga dalam campuran. Untuk itu perlu ditambahkan material lain untuk meningkatkan nilai stabilitas pada campuran perkerasan. Pada penelitian ini bahan tambah yang digunakan adalah gondorukem. Gondorukem merupakan hasil destilasi/penyulingan getah dari pohon pinus merkusii yang berbentuk padat berwarna kuning jernih sampai kuning tua. Tujuan penelitian ini adalah untuk mengetahui karakteristik campuran aspal porus dengan substitusi gondorukem ke dalam aspal penetrasi 60/70. Pembuatan benda uji untuk penentuan kadar aspal optimum (KAO) digunakan metode Australian Asphalt pavement Association (AAPA) dengan parameter nilai cantabro loss (CL), asphalt flow down (AFD), dan voids in mix (VIM). Gradasi agregat yang digunakan adalah gradasi terbuka dengan kadar aspal 4,5 %; 5%; 5,5%; 6%; dan 6,5% tanpa variasi penggunaan gondorukem. Selanjutnya dilakukan pengujian dan perhitungan Marshall, CL, dan AFD untuk mendapatkan KAO. Setelah KAO diperoleh, dibuat benda uji pada KAO dan variasi ± 0,5 dari nilai KAO dengan variasi substitusi gondorukem  sebesar 2%, 4%, 6%, dan 8%. Berdasarkan hasil penelitian KAO terbaik pada 5,56% dengan substitusi 8% gondorukem, dimana semua parameternya telah memenuhi spesifikasi yang disyaratkan AAPA (2004). Penambahan gondorukem berpengaruh terhadap nilai karakteristik Marshall, CL, dan AFD, dimana meningkatkan nilai stabilitas, VIM, CL, dan AFD seiring dengan peningkatan persentase gondorukem. Pada KAO terbaik diperoleh nilai stabilitas sebesar 554,81 kg, nilai VIM sebesar 18,04%, nilai CL sebesar 20,66%, dan nilai AFD sebesar 0,28%.

Separation and purification of 131I from neutron irradiated tellurium dioxide targets by wet-distillation method

2010 ◽  
Vol 71 (1) ◽  
pp. 1-12 ◽  
Author(s):  
M.A. El-Absy ◽  
M.A. El-Garhy ◽  
M.A. El-Amir ◽  
T.W. Fasih ◽  
M.F. El-Shahat
Keyword(s):  
Distillation Method ◽  
Separation And Purification ◽  
Tellurium Dioxide

A Simple Distillation Method for the Assessment of Proteolysis in Hard Cheese

LWT ◽  
1997 ◽  
Vol 30 (7) ◽  
pp. 767-769 ◽  
Author(s):  
H. Rohm ◽  
Doris Jaros ◽  
M. Riedler-Hellrigl
Keyword(s):  
Distillation Method ◽  
Simple Distillation ◽  
Hard Cheese

scholarly journals SEPARATION AND HPLC QUANTITATIVE ANALYSIS OF MURRAYAFOLINE A FROM THE ROOTS OF GLYCOSMIS STENOCARPA

2018 ◽  
Vol 54 (2C) ◽  
pp. 530
Author(s):  
Tran Quoc Toan
Keyword(s):  
Quantitative Analysis ◽  
Column Chromatography ◽  
Steam Distillation ◽  
Hplc Method ◽  
Distillation Method ◽  
Separation And Purification ◽  
Plant Materials

In this study, we investigated two methods for the separation and purification of alkaloidMurrayafoline A from the roots of the Vietnamese plant Glycosmis stenocarpa and developed anHPLC method for the determination of its contents in plant materials and the methanol extract.The yield of Murrayafoline A using steam distillation method was 1.5 times higher than theseparation method using column chromatography. By HPLC method, the content ofMurrayafoline A was determined to be 0.38 % (w/w) in the roots and 16.69 % (w/w) in themethanol extract of G. stenocarpa.

scholarly journals EXTRACTION AND COMPARISON OF ESSENTIAL OIL FROM NEEM SEED BY USING SOXHLET EXTRACTION AND SIMPLE DISTILLATION METHODS

2020 ◽  
Vol 5 (9) ◽  
pp. 74-81
Author(s):  
Bereket Tesfaye ◽  
Tilahun Tefera ◽  
Misikir O ◽  
Tsegaye G.
Keyword(s):  
Soxhlet Extraction ◽  
Extraction Time ◽  
Neem Seed ◽  
Distillation Method ◽  
Neem Oil ◽  
Simple Distillation ◽  
Physico Chemical ◽  
Solvent Type ◽  
Type Particle

Extraction of essential neem oil from neem seed were carried by soxhelt extraction and simple distillation method using different types of solvents and parameters. Physico-chemical characteristics of the extracted oil were also determined by using classical wet chemical method. Results were generated in both techniques. Soxhlet extraction using hexane has 40.35%, using ethanol-hexane mixture of 60:40% volume proportions have 43.71%, using ethanol 42.65% and using methanol 42.89%. In simple distillation method results reveal that using hexane 42.35%, in methanol 39.5%, using ethanol 40.72% and using ethanol-hexane mixture of 60:40% has 41.26 %. For all solvent type particle size has 355μm, extraction time 1hr up to 3hrs and applied constant and varies temperatures. At smaller extraction time, hexane produced oil yield greater than from ethanol and methanol. In soxhlet extraction, ethanol not produced oil at one-hour extraction time. Thus, by effective determination of factors like particle sizes, solvent type, temperature, and time it is possible to investigate the result on the quality and quantity of neem oil.

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