Study on Modification of the Banana Peel in the Extrusion

2011 ◽  
Vol 236-238 ◽  
pp. 2172-2178 ◽  
Author(s):  
Bing Du ◽  
Yan Li Jiao ◽  
Yan Jie Li ◽  
Guan Xiu Yin ◽  
Gong Ming Yang
Keyword(s):  
Feeding Rate ◽  
Raw Material ◽  
Banana Peel ◽  
Screw Extruder ◽  
Soluble Dietary Fiber ◽  
Study Results ◽  
Twin Screw ◽  
Feed Moisture ◽  
Processed Products ◽  
Extrusion Technology

Using self-determined design of SPJ-40 experimental twin-screw extruder to extrude the banana peel is investigated in this study. Results revealed that the best extrusion conditions were: banana peel and starch at rate of 2:8, feed moisture at 16%, screw speed at 268r/min, extrusion temperature at 150°C, and feeding rate at 20r/min. The structures of the products were determined after the extrusion. The electron microscopy showed that the structure of the starch powders and fibers had been greatly damaged, leading to the great increasing of surface area of processed products. Compared to the raw material, the crystallinity of products was down to 13.06% from 19.85%, but soluble dietary fiber was increased by 30.3 percent. The final product tastes delicate with palatable aroma. Overall, this extrusion technology for processing banana peel has bright prospect in application.

scholarly journals Metamorphosis of Twin Screw Extruder-Based Granulation Technology: Applications Focusing on Its Impact on Conventional Granulation Technology

2021 ◽  
Vol 23 (1) ◽  
Author(s):  
Rajat Radhakrishna Rao ◽  
Abhijeet Pandey ◽  
Aswathi R. Hegde ◽  
Vijay Induvadan Kulkarni ◽  
Chetan Chincholi ◽  
...  
Keyword(s):  
Process Analytical Technology ◽  
Twin Screw Extruder ◽  
Continuous Manufacturing ◽  
Screw Extruder ◽  
Solid Dosage ◽  
Regulatory Standards ◽  
Technology Applications ◽  
Twin Screw ◽  
Extrusion Technology ◽  
Granulation Technology

AbstractIn order to be at pace with the market requirements of solid dosage forms and regulatory standards, a transformation towards systematic processing using continuous manufacturing (CM) and automated model-based control is being thought through for its fundamental advantages over conventional batch manufacturing. CM eliminates the key gaps through the integration of various processes while preserving quality attributes via the use of process analytical technology (PAT). The twin screw extruder (TSE) is one such equipment adopted by the pharmaceutical industry as a substitute for the traditional batch granulation process. Various types of granulation techniques using twin screw extrusion technology have been explored in the article. Furthermore, individual components of a TSE and their conjugation with PAT tools and the advancements and applications in the field of nutraceuticals and nanotechnology have also been discussed. Thus, the future of granulation lies on the shoulders of continuous TSE, where it can be coupled with computational mathematical studies to mitigate its complications.

scholarly journals Use of response surface methodology (RSM) for composite blends of low grade broken rice fractions and full-fat soybean flour by a twin-screw extrusion cooking process

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Nahemiah Danbaba ◽  
Iro Nkama ◽  
Mamudu Halidu Badau
Keyword(s):  
Response Surface Methodology ◽  
Bulk Density ◽  
Response Surface ◽  
Extrusion Cooking ◽  
Twin Screw Extrusion ◽  
Screw Extruder ◽  
Broken Rice ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Feed Moisture

In this study, seventeen (17) composite blends of broken rice fractions and full-fat soybean, formulated using response surface methodology and central composite design within a range of barrel temperatures (100-140 °C), initial feed moisture content (15-25%) and soybean composition (8-24%), were extruded with a twin-screw extruder and the expansion and color indices were optimized. The results indicated a significant (p<0.05) effect of extrusion conditions on the responses. Fitted predictive models had coefficients of 88.9%, 95.7%, 97.3%, 95.4% and 95.2%, respectively, for expansion index, bulk density, lightness, redness and yellowness. The p-value and lack-of-fit tests of the models could well explain the observed variability and therefore could be used to establish production setting for the twin-screw extruder. The optimum extrusion conditions were found to be 130 °C (barrel temperature), 20% (feed moisture level) and 23% feed soybean composition and optimum responses in terms of bulk density, expansion index, lightness, redness and yellowness chroma indices were 0.21 g cm-3, 128.9%, 17.1, 3.13 and 24.5 respectively. This indicates that optimum conditions can be established in twin-screw extrusion cooking of broken rice fractions and full-fat soybean composite blends that can result in product of low bulk and maximum expansion with a satisfactory light yellow product color that can be used to produce products that valorize broken rice and reduce qualitative postharvest loss.

Ethanol Extraction of Flavonoids from Mungbean Skin after Twin-Screw Extrusion Process

2011 ◽  
Vol 393-395 ◽  
pp. 1203-1211
Author(s):  
Bing Du ◽  
Yan Li Jiao ◽  
Zhi Qiang Huang ◽  
Lian Kai Mao ◽  
Yuan Yuan Fan ◽  
...  
Keyword(s):  
Feeding Rate ◽  
Extrusion Process ◽  
Ethanol Solution ◽  
Extraction Rate ◽  
Twin Screw Extrusion ◽  
Ethanol Extraction ◽  
Screw Extrusion ◽  
Twin Screw ◽  
Process Effects ◽  
Feed Moisture

In order to increase the extraction rate of flavonoids from mungbean skin, twin-screw extrusion process was used as a pretreatment method. After optimizing conditions of twin-screw extrusion process, effects on ethanol extracting flavonoids were studied. Results revealed that the best extrusion conditions were: screw speed at 268r/min, extrusion temperature at 115~120°C, feed moisture at 17% and feeding rate at 726g/min. Under these conditions, the optimum condition for ethanol extraction of flavonoids was: using 38% ethanol solution at a material-liquid ratio of 1:20 at 77.5 °C with 2.5 h. The average extraction rate of flavonoids from mungbean skin was 3.14%, comparing to rate of un-extruded material 2.07%, extraction rate raised by 51.5%. This pretreatment can destroy the density structure of mungbean skin which has great effect on the increase of extraction rate of flavonoids.

Operating Parameters’ Influence on the Specific Volume of Extrusion Puffed Food

2011 ◽  
Vol 55-57 ◽  
pp. 966-969
Author(s):  
Chi Wu Bu
Keyword(s):  
Objective Function ◽  
Food Processing ◽  
Specific Volume ◽  
Design Method ◽  
Raw Material ◽  
Operating Parameters ◽  
Screw Extruder ◽  
Independent Variables ◽  
Twin Screw ◽  
Extrusion Product

Twin-screw extruder is the main equipment for puffed food processing. Corn powder as the main raw material, barrel temperature, screw speed and feed rate of the extruder as the independent variables, specific volume of the extrusion product as the objective function, experiment has been carried out base on factorial design method. How the independent variables influence the objective function has been analyzed. Values of the operating parameters to get optimal specific volume has been gained.

scholarly journals The Comparison of Water Absorption Analysis between Counterrotating and Corotating Twin-Screw Extruders with Different Antioxidants Content in Wood Plastic Composites

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Mohd Hafizuddin Ab Ghani ◽  
Sahrim Ahmad
Keyword(s):  
Water Absorption ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Wood Plastic Composites ◽  
Twin Screw Extruders ◽  
Plastic Composites ◽  
Study Results ◽  
Significant Difference ◽  
Twin Screw ◽  
Screw Extruders

Water absorption is a major concern for natural fibers as reinforcement in wood plastic composites (WPCs). This paper presents a study on the comparison analysis of water absorption between two types of twin-screw extruders, namely, counterrotating and corotating with presence of variable antioxidants content. Composites of mixed fibres between rice husk and saw dust with recycled high-density polyethylene (rHDPE) were prepared with two different extruder machines, namely, counterrotating and corotating twin screw, respectively. The contents of matrix (30 wt%) and fibres (62 wt%) were mixed with additives (8 wt%) and compounded using compounder before extruded using both of the machines. Samples were immersed in distilled water according to ASTM D 570-98. From the study, results indicated a significant difference among samples extruded by counterrotating and corotating twin-screw extruders. The counterrotating twin-screw extruder gives the smallest value of water absorption compared to corotating twin-screw extruder. This indicates that the types of screw play an important role in water uptake by improving the adhesion between natural fillers and the polymer matrix.

scholarly journals Karakteristik Sensori dan Fisiko-Kimia Beras Analog Sorghum dengan Penambahan Rempah Campuran (Sensory and Physicochemical Characteristics of Sorghum Rice Analogue by Mixed Spices Addition)

2017 ◽  
Vol 36 (4) ◽  
pp. 394
Author(s):  
Maya Indra Rasyid ◽  
Nancy Dewi Yuliana ◽  
Slamet Budijanto
Keyword(s):  
Dietary Fiber ◽  
Sensory Evaluation ◽  
Physicochemical Characteristics ◽  
Chemical Characteristics ◽  
Screw Extruder ◽  
Evaluation Result ◽  
Physico Chemical ◽  
Twin Screw ◽  
Extrusion Technology ◽  
Selection Of

The purpose of this study was to obtain the formula of sorghum rice analogue by mixed spices addition with acceptable sensory and physico-chemical characteristics.  The selection of sorghum rice analogue formula was tested by using hedonic test with 70 untrained panelists. The addition of mixed spices powder was as follows: 30 % onion, 20 % garlic, 10 % bay leaves, 20 % ginger and 20 % lemongrass. Those mixed spices powder were added to the sorghum rice analogue at percentage of 0.25 %, 0,5 %, 1 %, 2 %, 3 % and 0 % (control)  from total dough weight. The sorghum rice analogue was made using extrusion technology (a twin screw extruder). The overall sensory evaluation result showed that the addition of spice mixed had significant effect (p ≤ 0.05) on the characteristics of sorghum rice analogue. The panelists accepted the sorghum rice analogue with 1% mixed spice. The preferred formulation was the addition of 1% mixed spice which contain of  9.56 % moisture, 0.72 % ash, 0.53 % fat, 6.22 % protein, 92.53 % carbohydrate, 26.48 % amyloseand 6,67 % dietary fiber. Sorghum rice analogue enriched by spices is a potential as a rich fiber source.ABSTRAKTujuan penelitian adalah mendapatkan formula beras analog berbahan dasar sorgum dengan penambahan rempah campuran yang dapat diterima secara sensori. Pemilihan formula dilakukan dengan uji hedonik menggunakan 70 orang panelis tidak terlatih. Rempah yang ditambahkan berupa bubuk rempah campuran yang terdiri atas bawang merah 30%, bawang putih 20 %, daun salam 10 %, jahe 20 % dan sereh 20 %. Penambahan bubuk rempah campuran untuk pembuatan beras analog sorghum berturut-turut 0,25 %, 0,5 %, 1 %, 2 %, 3 % dan kontrol (tanpa rempah) dari total berat adonan diluar air. Beras analog sorghum dibuat dengan teknologi ekstrusi menggunakan ekstruder ulir ganda. Hasil uji sensori secara keseluruhan menunjukkan bahwa penambahan rempah campuran berpengaruh nyata (p <0,05) terhadap nasi beras analog yang dihasilkan. Panelis menyukai formula beras analog sorghum dengan penambahan 1 % rempah campuran. Beras analog sorghum dengan penambahan 1% rempah campuran memiliki kadar air 9,56 %, abu 0,72 %, lemak 0,53 %, protein 6,22 %, karbohidrat 92,53 %, amilosa 26,48 % dan serat pangan 6,67 %. Beras analog sorgum yang diperkaya dengan rempah campuran memiliki potensi sebagai pangan kaya serat.

Relationship Between Rheological Properties and Microstructure of Polypropylene/Organic Montmorillonite Nanocomposite Compounded by Twin Screw Extruder

2007 ◽  
Author(s):  
Guo Jiang ◽  
Han-Xiong Huang
Keyword(s):  
Rheological Properties ◽  
Yield Stress ◽  
Feeding Rate ◽  
Complex Viscosity ◽  
Twin Screw Extruder ◽  
Screw Extruder ◽  
Property Development ◽  
Organic Montmorillonite ◽  
Twin Screw ◽  
The Relationship

Polypropylene (PP)/organic montmorillonite (OMMT) nanocomposite was compounded in a twin-screw extruder. The objective is to investigate the relationship between rheological properties and microstructure of the nanocompsite. The samples were taken along the screws. Effect of feeding rate on the dynamical rheological property development and microstructure of samples was investigated. The yield stress of nanocomposite was obtained using steady-state shear sweep. The intercalated structure was probed by wide-angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). Rheological results showed that the complex viscosity of samples increased along the twin-screw extruder. In addition, with the decrease of feeding rate, the yield stress of nanocomposite increased and MMT was dispersed better in PP matrix. Finally, the relationship between dynamical rheological properties and the dispersed state of MMT was analyzed.

scholarly journals Preparation and Performance of Ultra-Fine Polypropylene Antibacterial Fibers via Melt Electrospinning

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 606 ◽  
Author(s):  
Qiu-Sheng Li ◽  
Hong-Wei He ◽  
Zuo-Ze Fan ◽  
Ren-Hai Zhao ◽  
Fu-Xing Chen ◽  
...  
Keyword(s):  
Antibacterial Agent ◽  
Average Diameter ◽  
Element Distribution ◽  
Raw Material ◽  
Screw Extruder ◽  
Scanning Calorimetry ◽  
Technical Textiles ◽  
Twin Screw ◽  
And Performance ◽  
Fourier Transfer Infrared Spectroscopy

Polypropylene (PP) fibers are employed commonly as the raw material of technical textiles (nonwovens), and the research focuses on fine-denier fibers and their functionalities. In this work, antibacterial PP masterbatches with different dosage (1–5 wt.%) of nano-ZnO particles as the antibacterial agent were prepared via a twin-screw extruder. The as-prepared PP masterbatches were electrospun on a home-made electrospinning device to afford ultra-fine PP fibers. The morphologies of as-spun ultrathin PP fibers with 16 μm of average diameter were observed by SEM. The structure and element distribution were characterized by means of energy-dispersive spectroscopy (EDS) and Fourier-transfer infrared spectroscopy (FTIR), respectively. There was some zinc obviously distributed on the surface when a dosage of ZnO more than 1 wt.% was used, which contributed to the antibacterial activity. The crystallinity of PP fibers was not affected strongly by the dosage of ZnO based on the differential scanning calorimetry (DSC) heating curves, while thermal decomposition improved with the increase in ZnO content, and the mechanical strength decreased predictably with the increase in inorganic ZnO content.

scholarly journals Influence of Compatibilizer and Processing Conditions on Morphology, Mechanical Properties, and Deformation Mechanism of PP/Clay Nanocomposite

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
B. Akbari ◽  
R. Bagheri
Keyword(s):  
Mechanical Properties ◽  
Deformation Mechanism ◽  
Feeding Rate ◽  
Processing Conditions ◽  
Feeding System ◽  
Rotor Speed ◽  
X Ray Diffraction ◽  
Screw Extruder ◽  
X Ray ◽  
Twin Screw

Polypropylene/montmorillonite nanocomposite was prepared by melt intercalation method using a twin-screw extruder with starve feeding system in this paper. The effects of compatibilizer, extruder rotor speed and feeding rate on properties of nanocomposite were investigated. Structure, tensile, and impact properties and deformation mechanism of the compounds were studied. For investigation of structure and deformation mechanisms, X-ray diffraction (XRD) and transmission optical microscopy (TOM) techniques were utilized, respectively. The results illustrate that introduction of the compatibilizer and also variation of the processing conditions affect structure and mechanical properties of nanocomposite.

scholarly journals Mathematical modeling of the oil extrusion process with pre-grinding of raw materials in a twin-screw extruder

10.5219/1436 ◽  
2020 ◽  
Vol 14 ◽  
pp. 937-944
Author(s):  
Mikhailo Mushtruk ◽  
Maxim Gudzenko ◽  
Igor Palamarchuk ◽  
Volodymyr Vasyliv ◽  
Natalia Slobodyanyuk ◽  
...  
Keyword(s):  
Raw Materials ◽  
Extrusion Process ◽  
High Energy ◽  
Raw Material ◽  
Twin Screw Extruder ◽  
Pressure Force ◽  
Screw Extruder ◽  
Energy Parameters ◽  
Twin Screw ◽  
Power And Energy

The extrusion process of oil-containing raw materials using a twin-screw extruder is becoming increasingly common in food technology. The problem of high energy costs for the implementation of this process is solved by reducing the resistance of the process mass due to the preliminary grinding of raw materials. The classical theory of extrusion is based mainly on the use of theoretical solutions of mathematical models of processes, which are simplified and allow determining integral parameters using coefficients, the preparation of which for the calculation of the corresponding processes and equipment is a rather complicated and approximate procedure. Mathematical modelling of the movement of the technological medium at the individual stages of the processing of raw materials allows us to determine the analytical dependences for the power and energy parameters of the system and to carry out their effective technical and economic evaluation. Using the methods of mathematical analysis and data processing in the MathCAD software environment, graphical dependences of the power and energy parameters of the research technical system were obtained. By increasing the density of the oil-containing raw materials, which is extruded in the research extruder by 40.5% the pressure force increases by 41%, that is, there is an almost proportional relationship between the pressure force and the density of the processed raw material. With an increase in the angular velocity of the drive shaft ω more than 8 rad.s-1, the pressure force in the research process increases sharply. With an increase in the density of raw materials, it is grinded before extrusion by 40%, the power consumption for the grinding process increases by 2.8 times for the recommended operating mode. Energy losses for pressing completely grinded raw materials are reduced by 2.52 times.

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