scholarly journals Physical and Environmental Properties of Thermoplastics Corn Starch (TPCS) Reinforced Pineapple Leaf Fibre (PALF) Composite

2020 ◽  
Vol 9 (5) ◽  
pp. 618-623
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Water Solubility ◽  
Moisture Absorption ◽  
Corn Starch ◽  
Fibre Content ◽  
Compression Moulding ◽  
Soil Burial ◽  
Environmental Properties ◽  
Fibre Loading

The purpose of this research is to study the physical and environmental properties of thermoplastic corn starch (TPCS) reinforced with 2 mm length of pineapple leaf fibre (PALF) bio-composites. Weight percentages of PALF ranging from 20 wt.% to 60 wt.% were used in this investigation. Hot compression moulding technique was used to produce samples of TPCS with different wt.% of PALF at the temperature of 165 °C for the duration of 15 minutes. The physical tests that had been performed were density, moisture content, moisture absorption and water absorption while the environmental tests were water solubility and soil burial testing. The moisture content results showed a decreasing trend by increasing the PALF content. However, moisture absorption and water absorption revealed an increased yield with the increase in PALF content. Meanwhile, density results did not show much change even when the fibre content was raised up to 60 wt.%. In addition, the water solubility results showed an increasing trend as the fibre was increased from 20 wt.% to 60 wt.%. On the other hand, soil burial results revealed vice versa whereby an increasing fibre content caused the weight loss of bio-composites to gradually decrease from 20 wt.% of fibre loading to the maximum of fibre loading. In conclusion, the physical and environmental properties of TPCS/PALF bio-composites obtained from this study can be used to develop biodegradable products such as containers or disposable trays.

Characteristic of thermoplastics corn starch composite reinforced short pineapple leaf fibre by using laminates method

2020 ◽  
Vol 14 (3) ◽  
pp. 7058-7070
Author(s):  
Nazri Huzaimi Zakaria ◽  
Mohd Zamani Ngali ◽  
Mohd Zulkefli Selamat ◽  
Fudhail Abdul Munir ◽  
Mohd Asyraf Aman
Keyword(s):  
Inverse Relationship ◽  
Water Solubility ◽  
Moisture Absorption ◽  
Corn Starch ◽  
Degradable Polymers ◽  
Compression Moulding ◽  
Weight Percentage ◽  
Soil Burial ◽  
Selection Of

In recent years, the increased demand of biodegradable polymers has sparked the research interest in the development of alternatives to conventional polymers. As such, starch considerably one of the best substitutes to the non-degradable polymers owing to its advantages. The main purpose of this study is to investigate the mechanical, physical and environmental characterization of bio-composites, which is in this case the thermoplastic corn starch (TPCS) reinforced with a 2 mm length of pineapple leaf fibre (PALF). The selection of different weight percentages in the range of 20 to 60 weight percentage (wt.%) of PALF contents were applied in this work. The mixtures of TPCS with different wt.% of PALF were made by using a hot compression moulding at 165 °C for 15 minutes. Several testing has been performed to determine the bio-composites characteristics. The results show that by incorporating 40 wt.% loading of PALF, the tensile and modulus strength has increased to the maximum. It is also seen that there is an inverse relationship between the moisture content and the wt.% loading of PALF. However, the water and moisture absorption show a direct relationship with wt.% loading of PALF. Meanwhile, the soil burial decreases when the wt.% loadings of PALF increase while the results for water solubility suggest vice versa. It is also found that the TPCS with 40 wt.% of PALF have a good miscibility between matrix/fibre in the bio-composites.

Water Absorption of Basalt Fiber Reinforced Fir Sawdust Panel

2013 ◽  
Vol 821-822 ◽  
pp. 1171-1174
Author(s):  
Hua Wu Liu ◽  
Kai Fang Xie ◽  
Wei Wei Hu ◽  
Han Sun ◽  
Shu Wei Yang ◽  
...  
Keyword(s):  
Water Absorption ◽  
Absorption Rate ◽  
Moisture Absorption ◽  
Fibre Length ◽  
Basalt Fiber ◽  
Fibre Content ◽  
Wood Composite ◽  
Thickness Swelling ◽  
Basalt Fibre ◽  
Reduced Water

Moisture absorption results in dimensional deformation, mechanical property deterioration and fungi attack in wood composite products, which may be improved by the reinforcement of waterproof material. In this study, we used basalt fibre as a reinforcement material for fir sawdust panels and investigated the influence of basalt fibre content and length on moisture absorption rate and thickness swelling. The reinforced fir sawdust panel groups largely reduced water absorption rate, and the smallest thickness swelling occurred when the content of basalt fibre was 5%. The results also indicated that the basalt fibre content played a more important role than basalt fibre length on the thickness swelling of the reinforced fir sawdust panels.

Development and Characterization of Extruded Product Using Carrot Pomace and Rice Flour

2010 ◽  
Vol 6 (3) ◽  
Author(s):  
Navneet Kumar ◽  
B. C. Sarkar ◽  
Harish Kumar Sharma
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Bulk Density ◽  
Water Solubility ◽  
Rice Flour ◽  
Absorption Index ◽  
Lateral Expansion ◽  
Screw Speed ◽  
Sensory Score ◽  
Die Temperature

Dehydrated carrot pomace was added in different proportions (10-30%) to rice flour. The formulation was extruded at different moisture content (17-21%), screw speed (270-310 rpm) and die temperature (110-130°C). The experimental combinations were decided based on central composite rotatable design for four variables at five levels of each variable. The lateral expansion, bulk density, water absorption index, water solubility index, hardness and sensory characteristics were measured as responses. Significant regression models were established with the coefficient of determination, R² greater than 0.70. The results indicated that pomace proportion, screw speed and temperature significantly influenced (P<0.10) lateral expansion; moisture content and screw speed for bulk density; pomace proportion and temperature for water absorption index and water solubility index, pomace proportion, screw speed and temperature for hardness and screw speed for sensory score. The compromised optimum condition obtained by numerical integration for development of extrudates were: carrot pomace of 11.75% in rice flour, moisture content 19.92%, screw speed 249.1 rpm and die temperature 114.3°C. Sensory evaluation revealed that carrot pomace could be incorporated into ready-to-eat expanded products upto the level of 11.75%.

Optimization of lupine (Lupinus albus L.) composition, feed moisture content and barrel temperatures for best quality maize based extruded snack food

2019 ◽  
Vol 50 (5) ◽  
pp. 853-869 ◽  
Author(s):  
Muhammed Adem ◽  
Sadik J.A. ◽  
Admasu Worku ◽  
Satheesh Neela
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Bulk Density ◽  
Water Solubility ◽  
Expansion Ratio ◽  
Absorption Index ◽  
Snack Food ◽  
Content Type ◽  
Moisture Contents ◽  
Feed Moisture

Purpose This paper aims to optimize feed moisture contents, barrel temperatures, blending ratios of maize and lupine for processing of protein-rich best quality extruded product using a twin-screw extruder. Design/methodology/approach A three-factor three-level response surface methodology by Box-Behnken Design was applied to evaluate the effect of selected processing conditions of blending ratios of lupine (10-20 per cent), barrel temperatures (120°C-150°C) and feed moisture content (14-18 per cent) on functional, nutritional and sensory characteristics of produced snack food. Findings The results of functional properties such as radial expansion ratio, bulk density, water absorption index, water solubility index observed as 0.71-1.2, 0.33-0.92 g/cc, 4.4-6.4 per cent and 10.2-15.1 per cent, respectively. The snack food showed the moisture 5.6-7.2 per cent, protein 8.1-18.1 per cent, fiber 1.6-2.7 per cent, ash 1.6-2.2 per cent and carbohydrate 64.8-81.4 per cent. The independent variables (lupine blending ratio, barrel temperature and feed moisture content) posed significant effects on expansion ration (p = 0.0030), bulk density (p = 0.0026), water absorption index (p = 0.0075) and water-solubility index (p = 0.0116). Higher blending ratio of lupine was increase in the bulk density and water solubility index, but decrease in expansion ratio and water absorption index of snack food. Higher feed moisture content was led to a reduction in expansion ratio and water-soluble index of snack food. Whereas, higher feed moisture contents was lead to rise in bulk density and water absorption index. Fiber (p = 0.0145), ash (p = 0.0343) and carbohydrate (p = 0.0001) contents were significantly depended on blending ratio. Blending of lupine 15.06 per cent, barrel temperature of 150 °C and feed moisture content of 14.0 per cent produced the snack food with desirability value of 72.8 per cent. Originality/value Protein malnutrition is one of the major problems in child development in under developed countries including Ethiopia. Maize is a top producer in the country but least appreciated for cost. Lupine is one of the undervalued produce consumed in Ethiopia after boiling. Still data on the utilization of maize and lupine in the extruded snack preparation was very limited. Optimization of moisture and barrel temperatures for this snack was not reported clearly yet.

scholarly journals Physico-chemical properties of extruded aquafeed pellets containing black soldier fly (Hermetia illucens) larvae and adult cricket (Acheta domesticus) meals

2018 ◽  
Vol 4 (1) ◽  
pp. 19-30 ◽  
Author(s):  
F.G. Irungu ◽  
C.M. Mutungi ◽  
A.K. Faraj ◽  
H. Affognon ◽  
N. Kibet ◽  
...  
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Bulk Density ◽  
Water Solubility ◽  
Chemical Properties ◽  
Expansion Ratio ◽  
Acheta Domesticus ◽  
Fish Feed ◽  
Black Soldier Fly ◽  
Physico Chemical

Fish farming is faced with the challenge of high cost of feeds because of the cost of high quality protein needed for formulation of the feeds. Thus, there is urgent need for alternative protein sources. The effects of substituting freshwater shrimp meal (FWSM) with black soldier fly larvae meal (BSFM) or adult cricket meal (ACM) on physico-chemical properties of hot-extruded fish feed pellets were investigated. The FWSM protein in a 26 g/100 g protein fish feed formulation was substituted at 0, 25, 50 and 75%, and moisture content of the formulated blends adjusted to 10, 20 or 30 g/100 g prior to extrusion. Floatability, expansion rate, bulk density, durability index, water absorption index, water solubility index, and water stability of extruded pellets were determined. Sinking velocity and the total suspended and dissolved solids in water were determined for the optimal pellets. Pellet floatability was not influenced by the type of insect meal but the interaction between level of inclusion and moisture content of the feed at extrusion. Pellets with high floatability >90% were produced from all feed blends at 30 g/100 g moisture content. Expansion ratio, was not influenced by type of insect meal or the level of inclusion but by the moisture content whereby feed blends extruded at 30 g/100 g moisture gave pellets with high expansion ratio ~60%. Bulk density was influenced by the interaction of the three factors. Pellet durability and water absorption indices were not influenced by the investigated factors or their interactions. Processed pellets were generally highly durable (99%) out of water, but the stability in water was significantly influenced by the interaction of type of insect meal level of inclusion and moisture content at extrusion. Water solubility increased with increasing extrusion moisture. Overall, it was possible to process good quality extruded pellets with 75% BSFM or 75% ACM at 30 g/100 g feed moisture.

scholarly journals THE UTILIZATION OF PARAGIS GRASS (Eleusine indica) AS CELLULOSE-BASED BIOPLASTIC FILM

2020 ◽  
Vol 4 (2) ◽  
pp. 36-42
Author(s):  
Na yad ◽  
Maribel L. ◽  
Is on ◽  
Michael Jomar B ◽  
Ma ningas ◽  
...  
Keyword(s):  
Weight Loss ◽  
Tensile Strength ◽  
Acetic Acid ◽  
Water Absorption ◽  
Water Solubility ◽  
Corn Starch ◽  
Elongation At Break ◽  
Eleusine Indica ◽  
Cellulose Pulp ◽  
Bioplastic Film

The goal of this research is to create biodegradable plastics made from Paragis grass (Eleusine indica) cellulose-pulp that can be used as alternatives to traditional plastics. The bioplastics were made by combining cellulose pulp from paragis grass leaves, sorbitol, acetic acid, and corn starch, with a constant amount of 8g corn starch and varying amounts of cellulose pulp (20g, 30g, and 40g), as well as 10ml sorbitol and 3 ml acetic acid. Collection and processing of paragis grass, cellulose pulp manufacturing, and bioplastic film manufacture were some of the methods used. Tensile strength, biodegradability, water absorption, and water solubility tests are used to characterize bioplastic. The mechanical properties testing shown that bioplastic produced with variation of corn starch to paragis grass cellulose pulp ratio had a tensile strength of 0.549 MPa, 0.878 MPa and 1.03 MPa; elongation at break (%) of 7.33%, 6.97% and 6.54%; biodegradability (weight loss) of 91.65%; 90.05%; and 69.46%; water absorption (weight gain) of 91.80%, 83.06% and 53.74%; and water solubility (weight loss) of 86.96%, 66.46% and54.91% respectively. The study found that Treatment 3 (40g paragis grass) has higher tensile strength (1.03 MPa) and tear strength, ability to degrade in four weeks, low water absorption (53.74%), and water solubility (54.91%).The result showed that cellulose-pulp from Paragis grass leaves could be used to make bioplastic. This research would aid in the reduction of plastic waste that pollutes the Earth’s soil, air, and water, as well as the mitigation of its consequences. It can also help reduce environmental pollution by using biodegradable plastic.

Modeling and Characterization of Blended Guava Pomace and Pulse Powder Based Rice Extrudates

2012 ◽  
Vol 8 (1) ◽  
Author(s):  
Srikanth Tangirala ◽  
B. C. Sarkar ◽  
Harish Kumar Sharma ◽  
Navneet Kumar
Keyword(s):  
Moisture Content ◽  
Water Absorption ◽  
Water Solubility ◽  
Rice Flour ◽  
Absorption Index ◽  
Water Soluble ◽  
Juice Extraction ◽  
Feed Moisture ◽  
Reduced Density

The purpose of the present work was to study the effect of guava pomace and pulse powder incorporation in to rice based extrudates on physical characteristics. Guava pomace collected after juice extraction was dried and milled. It was then added with pulse powder-rice flour blend at different combinations based on Central Composite Rotatable Design (CCRD). The independent variables were moisture content (17 – 21%), temperature (115 – 135°C), screw speed (230 – 270rpm), and varying proportion of rice, pulse and guava pomace. Higher feed moisture content resulted in extrudates with a higher density, lower expansion, higher water absorption index, lower water soluble index, and higher hardness. Higher barrel temperature resulted in reduced density, increased expansion, and water solubility index. Addition of guava pomace resulted in increase in water absorption index, hardness and decreased bulk density, expansion and water solubility index. The study suggested the guava pomace may be utilized up to the level of 10% to in Ready to Eat Snacks.

scholarly journals Preparation and Characterization of Functional Films Based on Chitosan and Corn Starch Incorporated Tea Polyphenols

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 817
Author(s):  
Lepeng Gao ◽  
Tao Zhu ◽  
Fuyang He ◽  
Zhiqiang Ou ◽  
Jian Xu ◽  
...  
Keyword(s):  
Moisture Content ◽  
Water Solubility ◽  
Corn Starch ◽  
Morphological Characteristics ◽  
Tea Polyphenols ◽  
Infrared Spectrometry ◽  
X Ray Diffraction ◽  
Blend Films ◽  
The Stability ◽  
Water Swelling

The functional films based on chitosan and corn starch incorporated tea polyphenols were developed through mixing the chitosan and starch solution and the powder of tea polyphenols by the casting method. The objective of this research was to investigate the effect of different concentrations of tea polyphenols on the functional properties of the films. Attenuated total reflectance Fourier transform infrared spectrometry and X-ray diffraction were used to investigate the potential interactions among chitosan, corn starch and tea polyphenols in the blend films. Physical properties of the blend films, including density, moisture content, opacity, color, water solubility and water swelling, as well as morphological characteristics, were measured. The results demonstrated that the incorporation of tea polyphenols caused the blend films to lead to a darker appearance. The water solubility of the blend film increased with the increase of tea polyphenol concentrations, while moisture content and swelling degree decreased. The hydrogen bonding between chitosan, starch and tea polyphenols restricted the movement of molecular chains and was helpful to the stability of the blend films. The results suggested that these biodegradable blend films could potentially be used as packaging films for the food and drug industries to extend the shelf life to maintain their quality and safety.

scholarly journals Corn Starch (Zea mays) Biopolymer Plastic Reaction in Combination with Sorbitol and Glycerol

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 242
Author(s):  
M.D. Hazrol ◽  
S.M. Sapuan ◽  
E.S. Zainudin ◽  
M.Y.M. Zuhri ◽  
N.I. Abdul Wahab
Keyword(s):  
Mechanical Properties ◽  
Zea Mays ◽  
Moisture Content ◽  
Water Absorption ◽  
Corn Starch ◽  
Tensile Modulus ◽  
Solution Casting ◽  
Casting Technique ◽  
Film Forming ◽  
Solution Casting Technique

The research included corn starch (CS) films using sorbitol (S), glycerol (G), and their combination (SG) as plasticizers at 30, 45, and 60 wt %, with a traditional solution casting technique. The introduction of plasticizer to CS film-forming solutions led to solving the fragility and brittleness of CS films. The increased concentration of plasticizers contributed to an improvement in film thickness, weight, and humidity. Conversely, plasticized films reduced their density and water absorption, with increasing plasticizer concentrations. The increase in the amount of the plasticizer from 30 to 60% showed a lower impact on the moisture content and water absorption of S-plasticized films. The S30-plasticized films also showed outstanding mechanical properties with 13.62 MPa and 495.97 MPa, for tensile stress and tensile modulus, respectively. Glycerol and-sorbitol/glycerol plasticizer (G and SG) films showed higher moisture content and water absorption relative to S-plasticized films. This study has shown that the amount and type of plasticizers significantly affect the appearances, physical, morphological, and mechanical properties of the corn starch biopolymer plastic.

scholarly journals Water Absorption Behavior on Natural/ Synthetic Fibre Reinforced Polymer Composites

2019 ◽  
Vol 9 (1S4) ◽  
pp. 5-9
Keyword(s):  
Water Absorption ◽  
Moisture Absorption ◽  
Unsaturated Polyester ◽  
Compression Moulding ◽  
Effect Of Water ◽  
Polyester Composite ◽  
Fibre Reinforced Polymer ◽  
Water Absorption Effect ◽  
Glass Mat ◽  
Water Gain

This paper deals with the effect of moisture absorption on single coconut sheath fiber and single glass fibre. Additionally, the moisture effect in fibre reinforced unsaturated polyester composites like coconut sheath (CS) and Glass mat (GM) composite. Initially, CS and GM fibre reinforced polyester composite were produced through hand layup followed by compression moulding method. CS/UPR and GM/UPR composites were made through water treatment by dipping those composites in ordinary water for various time intervals at room temperature to study the water absorption effect. At different time periods, the absorption of water showed gradual increment. The effect of water gain in percentage for CS and GM was observed. From this experiment, it is concluded that the effect of water gain in CS/UPR composite is higher than GM/UPR composite.

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