scholarly journals Analisis Kimia dari Serat Kayu Bangkal (Nauclea officinalis) sebagai Alternatif Bahan Baku Pulp Kertas (Chemical Analysis of Bangkal (Nauclea Officinalis) Wood Fibers as Raw Material Alternative of Pulp & Paper)

2018 ◽  
Vol 10 (1) ◽  
pp. 21-32
Author(s):  
Herlina Herlina ◽  
Wiwin Tyas Istikowati, Ph.D. ◽  
Fatriani Fatriani
Keyword(s):  
Fiber Diameter ◽  
Wood Fiber ◽  
Pulp And Paper ◽  
Raw Material ◽  
Chemical Components ◽  
Natural Forests ◽  
Wood Fibers ◽  
Pulp Paper ◽  
Chemical Content

South Kalimantan has considerable natural forests and many types of timber that have not yet been optimally utilized, such as Bangkal tree (Nauclea officinalis). The purpose of this research was to analyze chemical components, dimensional fibers characteristic, and suitability of Bangkal wood as a raw material of pulp and paper. The results obtained from this study revealed that the chemical content of Bangkal wood consisted of 3.00% extractive, 30.00% lignin, 16% hemicellulose, and 50.50% cellulose. The anatomy of Bangkal wood were 1.40 mm in fiber length 1.40 mm, 1.20 μm in fiber diameter, 5.00 μm in lumen diameter, and 3.25 μm in cell wall thickness. Derived fiber values comprised Runkel Ratio (0.43), Power Weaving (66.00), Muhsteph Ratio (99.80%), Coefficient of Rigidity (0.20), and Flexibility Ratio (0.71). Based on the chemical components and quality of Bangkal wood fiber, that wood could be used as a raw material of pulp and paper.

Non-Wood Fiber as an Alternative to Wood Fiber in Chinas Pulp and Paper Industry

Holzforschung ◽  
2001 ◽  
Vol 55 (2) ◽  
pp. 219-224 ◽  
Author(s):  
A. L. Hammett ◽  
Robert L. Youngs ◽  
Xiufang Sun ◽  
Mudit Chandra
Keyword(s):  
Raw Materials ◽  
Paper Industry ◽  
Wood Fiber ◽  
Pulp And Paper Industry ◽  
Agricultural Residues ◽  
Pulp And Paper ◽  
Raw Material ◽  
Chemical Recovery ◽  
Wood Fibers ◽  
Chinese Market

Summary The pulp and paper industry in China has been growing rapidly as the nation's population and economy have grown. As a result, there has been a huge demand for pulp and paper raw materials. China has a long tradition for using non-wood raw materials for pulp and paper due to its limited forest resources and rich supply of agricultural residues and non-wood plants. Agricultural residues, such as rice straw and wheat straw, are traditional raw materials for China's paper industry. Massive plantation of bamboo provides an increasingly important source of raw material for pulp and paper. Problems with non-wood fiber include collection and transportation, storage and handling, washing, bleaching, papermaking, and chemical recovery. Small mills, primary users of non-wood fiber, are typically deficient in pollution control and subject to government closure. This paper reviews non-wood fibers commonly used in China's pulp and paper industry. By increased knowledge of use of non-wood fibers, wood suppliers can plan for access to the growing Chinese market.

scholarly journals KANDUNGAN KIMIA DAN SIFAT SERAT ALANG-ALANG (Imperata cylindrica) SEBAGAI GAMBARAN BAHAN BAKU PULP DAN KERTAS

BIOSCIENTIAE ◽  
2012 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Budi Sutiya
Keyword(s):  
Fiber Length ◽  
Fiber Diameter ◽  
Lignin Content ◽  
Pulp And Paper ◽  
Imperata Cylindrica ◽  
Raw Material ◽  
Extractive Content ◽  
Second Phase ◽  
Stiffness Coefficient ◽  
Chemical Content

Imperata grassland can be found in South Kalimantan in great amount and is known as a nuisance weed plants. The research is conducted to find out reed’s chemical content and its properties to know the description of the nature of the fiber as raw material for pulp and paper. The result of the research shows the water content of Imperata grassland is 97.76%, extractive content is 8.09%, the lignin content is 31.29%; 59.62% of holocellulose, 40.22% of alphacellulose, and 18.40% of pentosan. The second phase of the study of Imperata grassland fiber anatomy have been completed with the results of the fiber diameter is equal to 20 μm; 8.75 μm of lumen diameter, cell wall thickness is 5.65 μm and fiber length is 2.19 mm mm. Value of the derivative dimension of the Imperata grassland fiber obtained as follows: runkel ratio is 1.29; 42.24 (%) of mulstep number, power loom is 109.37, the valueof flexibility is 0.44 and stiffness coefficient is 0.28

scholarly journals The Effect of Drying Parameters on the Quality of Pork and Poultry-Pork Kabanosy Produced according to the Traditional Specialties Guaranteed Recipe

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Marta Chmiel ◽  
Lech Adamczak ◽  
Katarzyna Wrońska ◽  
Dorota Pietrzak ◽  
Tomasz Florowski
Keyword(s):  
Relative Humidity ◽  
Salt Content ◽  
Raw Material ◽  
Chemical Components ◽  
Drying Process ◽  
Final Yield ◽  
Drying Conditions ◽  
Drying Chamber ◽  
Selection Of

The aim of this study was to determine the effect of differentiated air relative humidity during the drying process on selected quality features of TSG (traditional specialties guaranteed) pork and poultry-pork kabanosy. After heat treatment and 24-hour cooling at 4–6°C, the products were placed in three chambers at 15°C with differentiated air relative humidity: 60, 70, and 80%, respectively. The drying process was carried out until all variants of kabanosy achieved the required final yield of the product (<68%). Color components, water activity and shear force, water, protein, fat, and salt content, and the TBARS indicator values were determined. The drying process might be shortened (~50%) by a reduction of humidity in the drying chamber from 80 to 60%. The changes in the content of chemical components in pork kabanosy compared to poultry-pork ones demonstrated the different dynamics of the drying of the two types of kabanosy and the need for the selection of optimum drying conditions relative to raw material composition.

scholarly journals Potensi Penggunaan Dua Spesies Agave untuk Pembuatan Pulp dan Kertas

2018 ◽  
Vol 8 (01) ◽  
pp. 43
Author(s):  
Arini Hidayati Jamil ◽  
Heronimus Judi Tjahjono ◽  
Parnidi Parnidi ◽  
Marjani Marjani
Keyword(s):  
Physical Properties ◽  
Pulp And Paper ◽  
Raw Material ◽  
National Standard ◽  
Chemical Components ◽  
Pulp Yield ◽  
Fiber Morphology ◽  
Tensile Index ◽  
Tear Index ◽  
Agave Sisalana

Potential of Two Agave Species for Pulp and Paper MakingAbstractBoth of Agave sisalana and A. cantala are the most favorite agave species for fiber producer plant in Indonesia. Nevertheless, research study for using fiber of A. sisalana and A. cantala for pulp and paper purpose is hard to find. This study aims to observe the characteristics of A. sisalana and A. cantala fibers as a raw material of pulp including fiber morphology, chemical components, pulp characteristics, optical and physical properties of the handsheets. The observation of all characters was based on Indonesian National Standard (SNI). The pulping method used both of soda process with 18% active alkali and kraft process with 18% active alkali and 25% sulfidity. The result of the study for the handsheets from A. sisalana and A. cantala fibers shows that the brightness, dirt, and tear index were fulfilled to SNI standard for NBKP while the tensile index and burst index just fulfilled to SNI standard for LBKP. The handsheet of A. sisalana fiber has a higher tear index, tensile index, and burst index than the A. cantala ones. Soda pulping of both agave species resulting higher pulp yield, cellulose polymerization degrees and physical properties than kraft pulping.Keywords : Agave sisalana, A. cantala, characteristics of the fiber, pulp AbstrakAgave sisalana dan A. cantala merupakan dua spesies agave yang paling banyak dibudidayakan di Indonesia sebagai tanaman penghasil serat alam. Namun penelitian mengenai fungsi serat A. sisalana dan A. cantala sebagai bahan baku pulp dan kertas masih sulit ditemukan. Tujuan dari penelitian ini adalah mempelajari karakteristik serat A. sisalana dan A. cantala sebagai bahan baku pulp yang meliputi morfologi serat, komposisi komponen kimia, karakeristik pulp, sifat optik dan fisik lembaran pulp yang dihasilkan. Pengamatan seluruh karakter dilakukan berdasarkan Standar Nasional Indonesia. Pemasakan menggunakan metode soda dengan alkali aktif 18% dan kraft dengan alkali aktif 18% dan sulfiditas 25%. Hasil pengamatan pada lembaran pulp yang dihasilkan dari serat A. sisalana dan A. cantala menunjukkan bahwa derajat cerah, noda, dan kekuatan sobek memenuhi Standar Nasional Indonesia (SNI) Pulp Kraft Putih Kayujarum (NBKP) sementara kekuatan tarik dan kekuatan retak memenuhi SNI Pulp Krat Putih Kayudaun (LBKP). Lembaran pulp A. sisalana memiliki kekuatan sobek, tarik, dan retak lebih tinggi dibanding lembaran pulp A. cantala. Metode pemasakan soda pada serat kedua spesies agave tersebut menghasilkan rendemen pulp, derajat polimerisasi selulosa, dan kekuatan fisik lebih baik dibanding metode kraft.Kata kunci : Agave sisalana, A. cantala, karakteristik serat, pulp 

scholarly journals PENYELIDIKAN KELAYAKAN KIMIA DAN PENYEBARAN CADANGAN PASIR BESI DAERAH TIKU KABUPATEN AGAM UNTUK BAHAN BAKU SEMEN PADA PT. SEMEN PADANG

2018 ◽  
Vol 19 (1) ◽  
pp. 39-42
Author(s):  
Heri Prabowo
Keyword(s):  
Mineral Content ◽  
Mapping Method ◽  
Raw Material ◽  
Tio2 Content ◽  
Soil Layers ◽  
X Ray ◽  
Surface Data ◽  
Chemical Content ◽  
Method Analysis

The purpose of this research is to know the mineral content of iron sand and its spreading both vertically and horizontally with the purpose of providing information and data for local government of Agam district for the development and arrangement of environment along the coast. In order to obtain information about the depth of iron sand can be used geoelectric method because one of the physical properties of metal elements including iron is to have low resistivity. In this study used resistivity mapping method that aims to determine the variation of the arrangement of soil layers vertically and horizontally. The configuration used in this method is Schlumberger configuration. To know the chemical content of iron sand is done by taking samples of iron sand systematically and represented at some point. The sample was analyzed chemical composition by XRF method (X-Ray Fluorescence), then correlated with some surface data, so that the depiction of the quality of iron sand of Tiku Regency. From the interpretation of soil resistivity value on 2 paths it can be concluded that iron sand in Tiku Beach area is in depth 0 - 20 m. Chemical content of iron sand from XRF method analysis shows Fe2O3 percentage of 10 - 35%, with TiO2 content of 1 - 3%. The quality of iron sand can be used as raw material for cement maker.

scholarly journals EFFECT OF USING WHEY POWDER ON THE PROPERTIES OF PULP AND PAPER OBTAINED FROM STORED BAGASSE

2021 ◽  
Vol 55 (7-8) ◽  
pp. 799-807
Author(s):  
PEJMAN REZAYATI-CHARANI ◽  
AHMAD AZIZI MOSSELLO ◽  
MOHAMMAD BERVAIE
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
Qualitative Properties ◽  
Paper Properties ◽  
Whey Powder ◽  
Soda Pulp

The aim of this study was to investigate the effect of using whey powder (different concentrations and treatment repetitions) as a probiotic agent on the quantitative and qualitative properties of stored bagasse intended for use in the pulp and paper industry. For this purpose, whey powder was added in three concentrations and the treatment was applied once or twice. After that, soda pulp was prepared under conventional conditions. Then, handsheets (80 g/m2) were made and tested in terms of paper properties, and the results were compared. The findings revealed that increasing the concentration of whey powder and the number of treatments significantly improved the pulp and paper characteristics, thus, using the treatment with 2% whey powder twice and 0.4% whey powder once led to the best results for bagasse protection in terms of quality of the raw material, pulp and handsheets.

SIFAT KIMIA TIGA JENIS KAYU RAKYAT

2011 ◽  
Vol 3 (1) ◽  
pp. 24
Author(s):  
Yuniarti Yuniarti
Keyword(s):  
Chemical Properties ◽  
Pulp And Paper ◽  
Raw Material ◽  
Chemical Components ◽  
Social Forestry ◽  
Cellulose Content ◽  
Sample Result ◽  
Better Than

The objective of this study was to determine the chemical components of three kinds of social forestry timber of Jengkol, Madang, and Bangkinang, where wood samples was procured from Loksado South Kalimantan. The analysis was conducted according to TAPPI Standard with three replications for each sample. Result shows that Jengkol wood contained 44.73% of cellulose, 79.19% of holocellulose, 32.14% of lignin, 4.08% of extractive and 3.42% of ash. Madang wood contained 45.02% of cellulose, 80.05% of holocellulose, 31.60% of lignin, 4.06% of extractive and 4.59% of ash. Bangkinang wood contained 45.76% of cellulose, 72.84% of holocellulose, 20.90% of  lignin, 2.89% of extractive and 3.9% of ash. This research indicated that among three social forestry timber investigated, the Bangkinang wood is better than two others as sources of raw material for pulp and paper due to the highest cellulose content and lowest lignin and extractives contents.Keywords: chemical properties, Jengkol, Madang, Bangkinang

scholarly journals Performance and Meat Quality of Intrauterine Growth Restricted Pigs

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 254
Author(s):  
Piotr Matyba ◽  
Tomasz Florowski ◽  
Krzysztof Dasiewicz ◽  
Karolina Ferenc ◽  
Jarosław Olszewski ◽  
...  
Keyword(s):  
Meat Quality ◽  
Raw Material ◽  
Chemical Components ◽  
Drip Loss ◽  
Internal Organs ◽  
Intrauterine Growth ◽  
Meat Content ◽  
Muscle Tissues ◽  
Penetration Force

Intrauterine growth restricted (IUGR) pigs are characterized by high perinatal mortality and dysfunction of internal organs, adipose, and muscle tissues. However, little is known about the post-weaning performance and meat quality of the IUGR pigs. The aim of this study was to compare normal pigs and pigs with IUGR from birth until slaughter, also with respect to their meat quality. Pigs with the IUGR achieved lower slaughter weight but did not differ significantly from normal pigs in terms of their meat content. The IUGR did not negatively affect the culinary quality of the obtained meat, including its content of basic chemical components and energy value, as well as hardness, chewiness, cohesiveness, elasticity, and penetration force. The meat of the IUGR pigs, when compared to the meat of normal pigs, was characterized by higher pH, lower EC (Electrical Conductivity) and drip loss; it was also tenderer and obtained higher scores in sensory evaluation of taste, smell, and general desirability. Therefore, such raw material can be appreciated by the consumers and can be used for the production of culinary portions similarly to the raw material obtained from normal pigs.

scholarly journals Harvesting of Medicinal Plants in the Forest of Central India and its Impact on Quality of Raw Materials: A Case of Nagpur District, India

1970 ◽  
Vol 16 ◽  
pp. 35-42 ◽  
Author(s):  
Manish Mishra ◽  
P. C. Kotwal ◽  
Chandan Prasad
Keyword(s):  
Medicinal Plants ◽  
Central India ◽  
Raw Material ◽  
Acorus Calamus ◽  
Local Market ◽  
Natural Forests ◽  
Plant Parts ◽  
Market Sample ◽  
Safed Musli

Adulteration and substitutions are frequent in raw material trade of medicinal plants. Several studies have been done for a number of important crude drug materials to distinguish the genuine material from adulterant. The efficient way to determine adulteration is through morphological and organoleptic studies. The objective of this study is to find out current harvesting methods, malpractices adopted by various stakeholders and ocular analysis of market samples, impacting quality of raw (dry) produce of selected species in market of Nagpur. In the natural forests Baibirang (Embelia ribes Burm.), Safed musli (mixed tubers of Chlorophytum borivilianum Baker, C. tuberosum Baker.), and Aonla (Emblica officinalis Gaertn.) were collected just after the rains at unripe stage. The ocular observations of the market sample of Aonla, Baibirang fruits, Safed musli tubers indicate that mixing of old and diseased parts of same species and other adulterants is rampant in the local market. Laboratory analysis shows that in one kilogram of market sample, more than 20% raw material was found adulterated in all the selected species except Bach (Acorus calamus L.). Most of the selected plants were found adulterated, both intentionally and unintentionally. Major reasons for poor quality are unripe harvesting, mixing of inferior and cheap plant parts, mis-identification of species, non-availability of plant parts in required quantity, etc. Key words: Adulteration, quality, medicinal plants, harvesting, malpractices.  DOI: 10.3126/eco.v16i0.3471ECOPRINT 16: 35-42, 2009

An optimization model for selecting wood supply contracts

2020 ◽  
Vol 50 (4) ◽  
pp. 399-412 ◽  
Author(s):  
Ali Rahimi ◽  
Mikael Rönnqvist ◽  
Luc LeBel ◽  
Jean-François Audy
Keyword(s):  
Optimization Model ◽  
Wood Fiber ◽  
Pulp And Paper ◽  
Raw Material ◽  
Mixed Integer ◽  
Integer Optimization ◽  
Paper Mills ◽  
Wood Supply ◽  
Portfolio Strategies ◽  
Mixed Integer Optimization Model

Procurement for forest companies with pulp and paper mills aims to ensure that a sufficient volume of wood supply enters the production process. Numerous suppliers and contract types are available; however, their selection is a complex decision for procurement managers. In addition, managers typically dedicate a portion of their wood fiber demand to each group of suppliers, which is referred to as a portfolio strategy. Despite the available literature in contract selection, the consideration of contract types and their characteristics have not been addressed for the complex procurement process. In this study, a mixed-integer optimization model is proposed to best select contracts for pulp and paper procurement. The challenge was to plan deliveries in each time period to satisfy the demand of raw material at the mills. The potential of this model is demonstrated with a case study based on characteristics from a forest company in Quebec, Canada. A comparison between traditional fixed and flexible contracts is presented. Different portfolio strategies are also evaluated for groups of suppliers to investigate potential improvements.

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