Application of Bacterial Nano Cellulose as a Reinforcing Material in The Liner Test Paper

This research is about the application of Bacterial nano cellulose (BNC) as a reinforcing material in the making of liner test paper. BNC was obtained from the fermentation of banana peel extract using Gluconacetobacter xylinum bacteria obtained from the making starter of nata de coco. The reason for using banana peel waste is because itâ€™s available in large number all across Indonesia. BNC is mixed with secondary fiber as a raw material for making liner test paper. From the experimental handsheets results, strength properties and absorption properties were then tested. Variations in the composition of the use of BNC are 0% (blank), 5%, 10%, 15%, 20%, 25%, 30% of the handsheet dry weight. The BNC is also applicated on surface sizing as a substitute for the surface sizing agent. The results of this study indicate that BNC can be used as an alternative raw material on wet end and on surface sizing, because both applications can increase the strength properties of liner test paper, and can reduce the use of chemical additive. The highest increase in strength properties of liner test paper was obtained at the composition of nano cellulose 30% and using surface sizing. Ring crush index is 14.02 Nm / g, concora index is 12.73 Nm / g, bursting index is 3.78 KPa.mÂ² / g, ply bonding is 388.57 J / mÂ². The absorption properties of paper increases but it has a low prosity. The highest cobb size results are obtained at 30% BNC composition, which is 45.30 g / m2 without using surface sizing and 41.83 g / mÂ² using surface sizing. The highest porosity value is obtained at 30% BNC composition, which is 158 s / 100cc using surface sizing. This research is expected to be a reference for further research in the field of BNC, as the alternative raw materials besides wood in paper making.

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Ceramic Composition Material with Mullite Crystals Obtained from the Clayy Raw Material of Yakutia

Materials Science Forum ◽

10.4028/www.scientific.net/msf.992.253 ◽

2020 ◽

Vol 992 ◽

pp. 253-258

Author(s):

M.P. Lebedev ◽

V.N. Tagrov ◽

E.S. Lukin

Keyword(s):

Building Materials ◽

Raw Materials ◽

Practical Interest ◽

Physical And Mechanical Properties ◽

Ceramic Materials ◽

Strength Properties ◽

Raw Material ◽

Composition Material ◽

Material Base ◽

Wide Range

The article deals with the manufacture of modern structural ceramic materials from clay and loam deposits of the Republic of Sakha (Yakutia). The importance and relevance of the development of the production of building materials from local raw materials is emphasized, since this will certainly affect the effectiveness of the construction complex as a whole. The successful development of the construction complex is capable of not only stimulating growth in all sectors of the economy, but also contributes to solving the most pressing social problems. Today, Yakutia has huge reserves of mineral raw materials for the production of a wide range of building materials and products. Of practical interest are wall materials made from clay soils. Given the features of the region’s raw material base, this work focuses on additional processing of traditional material. Controlling the complex physicochemical and structural-mechanical transformations that occur during heat treatment, a methodology has been developed for creating a composite material that will allow competitive innovative materials with enhanced strength properties to be produced with a reinforcing element with a glassy phase matrix of mullite crystals. The fabricated samples have a wide range of physical and mechanical properties and allow using it as a high-quality structural building ceramics, as well as industrial floor technical tile.

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Raw material factors affecting the quota of structural wood in sawmill production

Annals of WULS, Forestry and Wood Technology ◽

10.5604/01.3001.0013.7639 ◽

2019 ◽

Vol 107 ◽

pp. 124-130

Author(s):

MAREK WIERUSZEWSKI ◽

RADOSŁAW MIRSKI ◽

ADRIAN TROCIŃSKI

Keyword(s):

Raw Materials ◽

Wood Quality ◽

Strength Properties ◽

Solid Wood ◽

Wood Products ◽

Raw Material ◽

Factors Affecting ◽

Research Technology ◽

Main Indicator ◽

Round Wood

Construction wood has to meet high requirements for loads capacity. Thanks to the selection and adequate classification of raw materials it is possible to decide how specific wood products can and should be used. The usage of solid wood for structural elements purposes has been precisely classified and specified in standardized requirements. Twelve classes of structural timber, ranging from C14 to C50, have been identified for softwood. Only part of Polish raw wood meets the standards of strength classes required in the building industry, as its strength corresponds to classes C24 and C30. A conclusion from research on the assortment structure of the raw materials in Poland was formed that it is particularly important to sort wood effectively according to its quality and intended use during processing. The material and strength efficiency is the main indicator of rational use of wood. The research resulted in setting the initial classification limits of selected round wood groups according to its strength. Properties determining the possibilities of obtaining a high quality product from the available raw wood material were taken into account in the research. Crucial factor was to select the proper research technology of determining dependencies between the applied research methodology and the defined wood quality, sorting class and strength class. The lower limit of availability of raw material with appropriate technical characteristics is determined during the selection of the research formula.

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Experimental Determination of Biologically Active Compounds in Pomace of Siberian Beet and Carrot

Food Processing Techniques and Technology ◽

10.21603/2074-9414-2021-1-179-187 ◽

2021 ◽

Vol 51 (1) ◽

pp. 179-187

Author(s):

Anastasia Kozhemayko ◽

Irina Sergeeva ◽

Irina Dolgolyuk

Keyword(s):

Functional Food ◽

Nutritional Value ◽

Raw Materials ◽

Dry Weight ◽

Biologically Active ◽

Raw Material ◽

Positive Trend ◽

Bioactive Substances ◽

Industrial Processing

Introduction. With the development of the food and processing industry, the matter of environmental pollution is becoming more and more acute. Environmental protection is based on the principle of rational use of natural resources and sustainable technology. Vegetable pomace is a secondary raw material; its amount depends on the production technology and equipment. The observed positive trend in the gross harvest of vegetables in open ground can increase the number of vegetable processing enterprises and the capacity of existing enterprises. Eventually, waste will start accumulating at processing sites, and it will have to be used as raw materials. The present paper features the content of biologically active substances in pomace of carrots and beets grown on the territory of the Siberian region and introduces options for their further use in functional foods. Study objects and methods. The research featured carrot pomace of the varieties Losinoostrovskaya, Nantskaya, and Queen of Autumn, as well as beet pomace of varieties Cylinder and Bordeaux. All the samples were harvested in the Kemerovo region in 2019. Determination of physical and chemical parameters was carried out using standard methods. Carotenoids, flavonoids, β-cyanine were studied using spectrometry and photocolorimetric method. Results and discussion. The experiment featured the content of bioactive substances in pomace of carrots and beets obtained during industrial processing. The content of carotenoids in carrots (mg of β-carotene per 100 g of dry weight): for Losinoostrovskaya variety – 23.56 ± 0.23; Nantskaya – 25.32 ± 0.18; Queen of Autumn – 20.78 ± 0.25. Flavonoid content (mg of catechol equivalent per 100 g of dry weight): Losinoostrovskaya – 12.02 ± 0.37; Nantskaya – 13.45 ± 0.56; Queen of Autumn – 11.50 ± 0.48. The content of β-cyanine in beets (mg per 100 g of dry weight): Cylinder – 100.0 ± 8.5; Bordeaux – 35.0 ± 1.8. The nutritional value of carrot and beet pomace with a mass fraction of moisture was 10%. The nutritional value of vegetable pomace is due to the high content of dietary fiber; therefore, the raw materials can be considered for functional food production. The content of biologically active substances in vegetable pomace (flavonoids, carotenoids, β-cyanines) can enhance the functional orientation of this secondary raw material when used in food technologies for the production of food of high nutritional value. Conclusion. The results obtained will make it possible to use the biochemical potential of plant raw materials in many aspects, as well as to obtain new functional food products, thereby expanding the range of healthy foods.

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STUDY ON THE GRINDING TIME DURATION IMPACT ON THE PROPERTIES OF PAPER FROM ALTERNATIVE RAW MATERIALS

Technical science and innovation ◽

10.51346/tstu-01.20.3-77-0067 ◽

2020 ◽

Vol 2020 (3) ◽

pp. 24-31

Author(s):

Z Galimova ◽

◽

H Babakhanova ◽

M Abdunazarov ◽

I Ismoilov ◽

...

Keyword(s):

Raw Materials ◽

Low Cost ◽

Physical And Mechanical Properties ◽

Strength Properties ◽

Milling Process ◽

Raw Material ◽

Time Duration ◽

Paper Production ◽

Fiber Materials ◽

The Impact

Both raw and recycled fiber materials are used for paper production. The increase in percentage use of the latter is due to their paper-forming properties, availability and low cost. The article explores the possibility of using pulp from the inner layer of mulberry twig bark. Mulberry twigs, after removing leaves, which are the main raw material in silk production, have no practical industrial application. Recycling waste - mulberry branches - for the production of pulp is therefore relevant as it is aimed at solving raw material and environmental problems. The purpose of this work is to use local raw materials for paper production, study the impact of processing method of the grinding process on paper forming properties. During grinding the mechanical processes of changes of fibers determine mainly structure of a paper sheet, and colloidal-physical processes - bind and ability of fibers to form strong, homogenous and smooth structure of paper. The structure of the sheet of paper facilitates excessive or "selective" ink absorption into the pores of the paper and thus predetermines the quality of reproduction during the printing process. Methods for determining the physical and mechanical properties of papers were used in this work, and changes in the surface structure of samples cast at various technological modes of the milling process were studied. The results of the study revealed that the addition of cellulose mass from the inner layer of mulberry twig bark helps to obtain a strong paper. The optical properties of the paper, which contains cotton and cellulose from the inner layer of mulberry branch bark, are explained by the whiteness of the added fibers themselves. The strength properties of the paper at a weight grinding degree of 300 CWR are explained by the bond between the split and strongly interwoven fibers of the cellulose fibers. It has been established that the addition of more than 30% cellulose from the inner layer of the mulberry branch bark to the paper pulp mass is undesirable, as this adversely affects the whiteness of the paper

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Morphological and Chemical Traits as Quality Determinants of Common Thyme (Thymus vulgaris L.), on the Example of ‘Standard Winter’ Cultivar

Agronomy ◽

10.3390/agronomy10060909 ◽

2020 ◽

Vol 10 (6) ◽

pp. 909 ◽

Cited By ~ 2

Author(s):

Olga Kosakowska ◽

Katarzyna Bączek ◽

Jarosław L. Przybył ◽

Anna Pawełczak ◽

Katarzyna Rolewska ◽

...

Keyword(s):

Essential Oil ◽

Rosmarinic Acid ◽

Raw Materials ◽

Glandular Trichomes ◽

Intraspecific Variability ◽

Total Content ◽

Dry Weight ◽

Raw Material ◽

Thymus Vulgaris ◽

Chemical Characters

Common thyme is regarded as one of the most important culinary plants. The purpose of the work was to determine the intraspecific variability of common thyme with respect to morphological and chemical characters including the content and composition of essential oil and phenolic compounds in the herb. The objects of the study were 12 clones, vegetatively multiplied from randomly selected individual plants of cultivar ‘Standard Winter’. The morphological observations and harvest of raw materials were carried out in the first year plants’ vegetation. The highest differences between clones were on fresh and dry weight of herb (CV = 0.38 and 0.36, respectively), width of leaves (CV = 0.21), and density of glandular trichomes on the abaxial surface of leaves (CV = 0.29). Examined clones were also differentiated as to the chemical features. Essential oil content (performed by hydrodestillation) and composition (by GC-MS and GC-FID) were determined and they ranged from 2.10 to 4.38 g × 100 g−1 DW. Here, thymol, γ-terpinen, and p-cymen were the dominant compounds. Clone no. 4 was distinctive as to the highest content of essential oil followed by the highest share of thymol (54.59%). The total content of phenolic acids and flavonoids (determined according to PPh 6th) also differed among clones (CV = 0.38 and 0.36, respectively). Using a validated HPLC-DAD method, the following compounds were identified: caffeic, rosmarinic, p-coumaric acids, luteolin 7-O-glucoside, naryngenin, and (−)-epicatechin. Here, rosmarinic acid followed by luteolin 7-O-glucoside were present in the highest amounts (611.47–2675.59 and 46.77–325.11 mg × 100 g−1 DW, respectively). The highest differences between clones were the contents of p-coumaric acid (CV = 0.59), luteolin 7-O-glucoside (CV = 0.50) and rosmarinic acid (CV = 0.40). Such a high range of variability can provide problems with raw material standardization. Nevertheless, it opens possibilities for breeders, whereas individual plants/clones may become valuable components for breeding.

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Effect of Raw Material Ratios on the Compressive Strength of Chang Jiang Iron Ore Gangues Aerated Concrete Block

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.573-574.92 ◽

2012 ◽

Vol 573-574 ◽

pp. 92-98

Author(s):

Wen Hua Xu ◽

Hao Zhang ◽

Wei Jun Ren ◽

Jin Yi Wu

Keyword(s):

Compressive Strength ◽

Aluminum Powder ◽

Quartz Sand ◽

Iron Ore ◽

Raw Materials ◽

Dry Weight ◽

Concrete Block ◽

Raw Material ◽

Optimum Ratio ◽

Aerated Concrete

The present study was to investigate the production of aerated concrete block from ChangJiang iron ore gangues. Analyze Quartz Sand, cement, CaO and gangue’s ratio’s influence on the aerated concrete block’s compressive strength, and then determine the optimum ratio. The results shows that gangue, quartz sand, cement, CaO, gypsum, aluminum powder, additive’s optimum ratio is 60.11%，8.26%，15.03%, 14.07%, 2%, 0.06% and 0.07% the dry weight of raw materials. Obtain the strongest compressive strength with the ratio 0.59:1 for water and raw materials. Adding iron gangues into aerated concrete block can turn wastes into treasures, which is originally done by us.

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STUDY OF RECEIVING WOOD AND PLANT PLASTICS WITHOUT BINDERS IN THE PRESENCE OF CATALYSTS OF POLYOXOMETALLATES TYPE

Forestry Engineering Journal ◽

10.12737/article_5ab0dfc1e37185.35527284 ◽

2018 ◽

Vol 8 (1) ◽

pp. 132-138

Author(s):

Виктор Бурындин ◽

Viktor Buryndin ◽

Лариса Бельчинская ◽

Larisa Belchinskaya ◽

Андрей Савиновских ◽

...

Keyword(s):

Mechanical Properties ◽

Functional Groups ◽

Hot Pressing ◽

Raw Materials ◽

Flexural Modulus ◽

Chemical Activation ◽

Physical And Mechanical Properties ◽

Strength Properties ◽

Raw Material ◽

Plastic Properties

The possibility of obtaining wood and plant plastics without a binder (WP-WB) in the presence of a catalyst of man-ganese-containing sodium vanadomolybdophosphate has been investigated. The use of this catalyst makes it possible to reduce the temperature of hot pressing in closed molds from 1,800°C to 1,600°C. The fractional composition of the initial press raw material influences physical and mechanical properties of WP-WB. Higher values of the plastic properties are obtained by using a 0.7 mm fraction, which is associated with an increased specific surface area of the particles compared to 1.3 mm particles. The results has showed that the samples obtained by using the catalyst have increase in strength properties (flexural strength, flexural modulus, hardness) at lower pressing temperature, but reduction of water resistance performance has been observed . This is explained by the increase in the content of functional groups when using a catalyst. The process of obtaining plastic can be broken down into two successive stages: the first is hydrothermal destruction of lignin-carbohydrate complex (initial moisture of the press raw material is 12%, the temperature of hot pressing in closed molds is 160 ... .180 ° C) and partial chemical activation of lignin as a result of hydrogen peroxide and catalyst application; the second stage - formation of plastic with the formation of a network structure due to the formed functional groups. It is established that the values of physical and mechanical properties of WP-WB are higher than those of plastic obtained on the basis of plant raw materials (PP-WB). This can be explained by the fact that lignin of coniferous species has the guaiacylpropane structure, while plant raw material has a hydroxyphenylpropane structure

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ANALYSIS QUALITATIVE ADDITION OF ADDITIVE SUBSTANCE TO PAPER MAKING PROCESS IN PAPER MACHINE 12 PT. X - KARAWANG ON PRODUCT QUALITY

Journal of Green Science and Technology ◽

10.33603/jgst.v4i2.3460 ◽

2020 ◽

Vol 4 (2) ◽

Author(s):

Dian Farkhatus Solikha

Keyword(s):

Raw Materials ◽

Human Life ◽

Paper Industry ◽

Forest Products ◽

Raw Material ◽

Paper Machine ◽

Foam Formation ◽

Functional Additives ◽

Surface Sizing ◽

Dry Conditions

Paper is a tangible item of thin sheets which can be torn, rolled, folded, glued and crossed out. Paper is made to meet the needs of a very diverse life. The paper industry is one of the forest products industries which has a very important role in human life. There is almost no human activity that does not utilize this industrial commodity. In the process of making paper, in addition to the availability of Raw Materials there is also the use of additives. Additives are ingredients that are added to obtain certain desired characteristics of paper products. Some factors that influence the process of making paper are raw material, machine cleanliness, machine performance, human factors and additives. Additives are the main factors that influence the success of the papermaking process. There are two types of additives used in Paper Machine 12 PT.X-Karawang, namely functional additives and controlling additives. The effect of the addition of additives on Paper Machine 12 PT.X-Karawang namely, Dry Strength can increase the strength of the paper when used in dry conditions, Sizing Agent (Internal Sizing) functions to control liquid penetration, Surface Sizing Agent (Surface Sizing) functions to level the surface of the paper, Filler as filler, Dyes can give color to paper, OBA serves to increase the brightness of paper, Biocide functions to inhibit bacterial growth, Defoamer functions to prevent foam formation and Retention Aid can increase fiber retention.Keyword: Controlling Additives, Functional Additives, Paper, Paper Machine

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PENGARUH MIKROORGANISME, BAHAN BAKU, DAN WAKTU INKUBASI PADA KARAKTER NATA: REVIEW

Jurnal Teknologi Hasil Pertanian ◽

10.20961/jthp.v14i1.47654 ◽

2021 ◽

Vol 14 (1) ◽

pp. 62

Author(s):

Sherly Novia Yuana Putri ◽

Wahyu Fajri Syaharani ◽

Cindy Virgiani Budi Utami ◽

Dyah Retno Safitri ◽

Zahra Nur Arum ◽

...

Keyword(s):

Fermentation Process ◽

Raw Materials ◽

Food Product ◽

Fiber Content ◽

Coconut Water ◽

Raw Material ◽

Banana Peel ◽

Fermentation Time ◽

High Fiber ◽

Physical Tests

Nata is an organic food product that has a high fiber content. Nata is a fermented produce by Acetobacter xylinum. There is very limited review article that discussed the making process of nata using different starter, raw material, and the length of incubation time in once. So that, this review discusses the comparison of various parameters that affect the fermentation process of nata. This review aims to discuss the effect of using several types of microorganisms, different raw materials, and different fermentation time on nata production. Factors that influence the success of nata fermentation process include fermentation time, the addition of ingredients (sugar, vinegar, and urea), the use of hollow caps, avoiding products from shocks, and the use of sterile equipment. The bacteria that can be used for making nata include Acetobacter xylinum and Acetobacter sp. Several raw materials can be used to make nata, such as coconut water, seaweed, banana peels, tofu water, cassava, and jackfruit straw. The best raw material to make nata from color parameters is seaweed, aroma parameter is jackfruit straw, and taste parameter is cassava. Based on chemical and physical tests, the best raw material for moisture content parameters is seaweed, fiber content parameter is cassava, thickness parameter is banana peel, and yield parameter is coconut water followed by cassava. The length of fermentation affects the thickness and weight of nata, chewier texture of nata, and the darker color of nata. The best thickness of nata produced on the 14th day of fermentation was 1.7 cm. The best overall weight of nata on produced the 10th day of fermentation was 600 g/L. The texture of nata was the chewiest in the fermentation time of 14 days with the value was 72.33 g/5mm. The lowest degree of nata whiteness produced on the 14th day of fermentation with the value was 72.307%.

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Blends of cassava starch with banana flours as raw materials for gluten-free biscuits

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n4p2293 ◽

2021 ◽

Vol 42 (4) ◽

pp. 2293-2312

Author(s):

Magali Leonel ◽

◽

Thaís Paes Rodrigues dos Santos ◽

Sarita Leonel ◽

Ciro Hugo Elnatan de Souza Santos ◽

...

Keyword(s):

Wheat Flour ◽

Raw Materials ◽

Starch Content ◽

Cassava Starch ◽

Raw Material ◽

Banana Peel ◽

Gluten Free ◽

Free Products ◽

Functional Additive ◽

Banana Flour

The growth in demand for gluten-free products linked mainly to health aspects has led to an increased interest in the production of mixed flours for use in bakery products. This work aimed to evaluate the use of different mixtures of cassava starch with banana flour, obtained from the pulp and peel of green fruits, for the production of gluten-free biscuits. In the preparation of the biscuits, seven mixtures were prepared with varying percentages of cassava starch, banana pulp flour and banana peel flour. A formulation with wheat flour was used as a control. Wheat flour, cassava starch and banana flours were analyzed for chemical composition. The results showed that the banana peel flour stood out for its higher levels of proteins, fibres, lipids, ash, total phenols, total flavonoids and antioxidant activity which make this flour effective as a functional additive. However, the results of physical and sensory characteristics of the biscuits showed that the variation in the percentage of banana peel flour led to greater changes in the quality attributes of the biscuits, so the percentage of inclusion should be limited. Banana pulp flour (UBF) had high starch content, however, the biscuits produced with higher percentages of this flour and lower percentages of cassava starch showed lower propagation rates, greater hardness and less sensory acceptance, showing the importance of the starchy raw material in the physical properties of biscuits. Formulations containing cassava starch mixed with up to 15% banana flour (1:1, pulp and peel) are a good basis for making gluten-free biscuits.

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