Morphological properties and thermoanalysis of micronized cassava starch

Date

2010-01-05

Author

Ren, Guang-yue
Li, Dong
Wang, Li-jun
Özkan, Necati
Mao, Zhi-huai

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

99
views

0
downloads

The granule morphology, microstructure, and thermal properties of micronized cassava starch prepared by a vacuum ball-grinding machine were investigated. Scanning electron microscopy (SEM) analysis indicated that the morphology of starch granule changes during the ball-grinding treatment. Differential scanning calorimetry (DSC) analysis indicated that the maximum peak temperature (T-p) of the gelatinization process, the glass transition (T-g), and peak height index (PHI) for the starch granules decreased when the size of micronized starch granules was reduced. When the size of starch granules was reduced beyond 9.11 mu m, they have a tendency to agglomerate and their Delta H were increased. The granule size has a significant effect on the gelatinization properties of cassava starch. This study will provide useful information of the micronized starch for its potential industrial application.

Subject Keywords

Ball-grinding treatment, Micronization, Cassava starch, Thermoanalysis, DSC, SEM

URI

https://hdl.handle.net/11511/31858

Journal

CARBOHYDRATE POLYMERS

DOI

https://doi.org/10.1016/j.carbpol.2009.07.031

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Structural and optical properties of thermally annealed thallium indium disulfide thin films Guler, I; Hasanlı, Nızamı (Elsevier BV, 2020-06-30) Structural and optical properties of thallium indium disulfide (TlInS2) thin films, deposited by thermal evaporation technique and thermally annealed at different temperatures, were analyzed. Crystallite size, dislocation density and lattice strain of the thin films were found from X-ray diffraction experiments. The atomic compositions of the films were determined from energy dispersive spectroscopy analysis. Surface morphology of the films was analyzed using atomic force microscopy. From room temperature t...
Structural and mechanical investigations of magnesium and fluoride doped nanosize calcium phosphates Evis, Zafer (2010-12-01) Pure and Mg2+ and F doped nano-calcium phosphates (CaP), which were synthesized by a precipitation method to investigate their microstructural and mechanical properties. After the drying and calcination processes, the samples were sintered at 1100 degrees C for 1 hour. High densities were achieved except for the 7.5% mole Mg doped samples. Due to the Mg2+ substitution, beta-TCP phase was detected besides HAp, resulting in the formation of HAp/ beta-TCP biphasic composites with different compositions. The su...
Biological hydrogen production from olive mill wastewater and its applications to bioremediation Eroğlu, Ela; Eroğlu, İnci; Department of Chemical Engineering (2006) Hydrogen production by photosynthetic bacteria occurs under illumination in the presence of anaerobic atmosphere from the breakdown of organic substrates, which is known as photofermentation. In this study, single-stage and two-stage process development were investigated for photofermentative hydrogen production from olive mill wastewater by Rhodobacter sphaeroides O.U.001 within indoor and outdoor photobioreactors. It was proven that diluted olive mill wastewater (OMW) could be utilized for photobiological...
Physico-chemical and biological properties of hydroxyapatite extracted from chicken beaks ALSHEMARY, AMMAR ZEIDAN GHAILAN; AKRAM, Muhammad; TAHA, Ali; Tezcaner, Ayşen; Evis, Zafer; HUSSAİN, Rafaqat (Elsevier BV, 2018-03-15) In this investigation, we have extracted biological hydroxyapatite (HA) containing magnesium, sodium, aluminium, zirconium and silicon ions from the chicken beaks. Raw chicken beaks were calcined at different temperatures after washing with boiled water and organic solvents. The calcined biological HA was characterized by X-ray diffraction (XRD), Fourier transforms infrared (FTIR), Field emission electron microscopy (FESEM), X-ray fluorescence (XRF) spectroscopy and Thermogravimetric analysis (TGA). The via...
Structural peculiarities and aging effect in hydrogenated a-Si prepared by inductively coupled plasma assisted chemical vapor deposition technique Nogay, G.; Ozkol, E.; Ilday, S.; Turan, Raşit (2014-12-01) In this study, we report the morphological and structural properties of amorphous and nanocrystalline Si thin films deposited by inductively coupled plasma-assisted chemical vapor deposition (ICP-CVD) technique at low substrate temperatures using H-2 diluted SiH4 as the source gas. We demonstrated that changing the total deposition pressure across a broad range alters the film properties. The film grew in a columnar fashion, and its topography was rough at nanoscale as identified by high resolution Transmis...

Citation Formats

G.-y. Ren, D. Li, L.-j. Wang, N. Özkan, and Z.-h. Mao, “Morphological properties and thermoanalysis of micronized cassava starch,” CARBOHYDRATE POLYMERS, pp. 101–105, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31858.