Characteristics of pores as measured by porosimetry and microscopy considering spaghetti as a model system

Mohammad Shafiur Rahman; Abdullah Al-Mamun; Issa S. Al-Amri

doi:10.1515/ijfe-2016-0366

Characteristics of pores as measured by porosimetry and microscopy considering spaghetti as a model system

Mohammad Shafiur Rahman, Abdullah Al-Mamun^*, Issa S. Al-Amri

^*Corresponding author for this work

Civil and Architectural Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Open pore porosity of spaghetti was measured by helium (He) gas pycnometer and mercury (Hg) porosimetry and it was observed as 0.025 and 0.023, respectively. Pore size distribution curve from mercury porosimetry indicated two sharp crests, at alternate position of 59±8 μm and 6.4±0.9 μm diameter pore; while Scanning Electron Microscopy (SEM) showed two types of pores, first class was cracks and second one was holes. The average width of the cracks (channel) and diameters of holes were determined as 3.6±1.5 μm and 1.0±0.3, respectively. The moisture sorption isotherm of spaghetti was measured by dynamic sorption method and modeled by Brunauer-Emmett-Teller (BET) and Guggenheim-Anderson-de Boer (GAM) models. The values of BET monomolecular layer were observed as 3.24 and 5.91kg water/kg dry solids, respectively for adsorption and desorption cycles.

Original language	English
Article number	20160366
Journal	International Journal of Food Engineering
Volume	13
Issue number	8
DOIs	https://doi.org/10.1515/ijfe-2016-0366
Publication status	Published - Aug 28 2017

Keywords

Material Density
Microscopy
Particle Density
Porosity
Water Activity

ASJC Scopus subject areas

Biotechnology
Food Science
Engineering (miscellaneous)

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title = "Characteristics of pores as measured by porosimetry and microscopy considering spaghetti as a model system",

abstract = "Open pore porosity of spaghetti was measured by helium (He) gas pycnometer and mercury (Hg) porosimetry and it was observed as 0.025 and 0.023, respectively. Pore size distribution curve from mercury porosimetry indicated two sharp crests, at alternate position of 59±8 μm and 6.4±0.9 μm diameter pore; while Scanning Electron Microscopy (SEM) showed two types of pores, first class was cracks and second one was holes. The average width of the cracks (channel) and diameters of holes were determined as 3.6±1.5 μm and 1.0±0.3, respectively. The moisture sorption isotherm of spaghetti was measured by dynamic sorption method and modeled by Brunauer-Emmett-Teller (BET) and Guggenheim-Anderson-de Boer (GAM) models. The values of BET monomolecular layer were observed as 3.24 and 5.91kg water/kg dry solids, respectively for adsorption and desorption cycles.",

keywords = "Material Density, Microscopy, Particle Density, Porosity, Water Activity",

author = "Rahman, {Mohammad Shafiur} and Abdullah Al-Mamun and Al-Amri, {Issa S.}",

note = "Publisher Copyright: {\textcopyright} 2017.",

year = "2017",

month = aug,

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doi = "10.1515/ijfe-2016-0366",

language = "English",

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AU - Rahman, Mohammad Shafiur

AU - Al-Mamun, Abdullah

AU - Al-Amri, Issa S.

PY - 2017/8/28

Y1 - 2017/8/28

N2 - Open pore porosity of spaghetti was measured by helium (He) gas pycnometer and mercury (Hg) porosimetry and it was observed as 0.025 and 0.023, respectively. Pore size distribution curve from mercury porosimetry indicated two sharp crests, at alternate position of 59±8 μm and 6.4±0.9 μm diameter pore; while Scanning Electron Microscopy (SEM) showed two types of pores, first class was cracks and second one was holes. The average width of the cracks (channel) and diameters of holes were determined as 3.6±1.5 μm and 1.0±0.3, respectively. The moisture sorption isotherm of spaghetti was measured by dynamic sorption method and modeled by Brunauer-Emmett-Teller (BET) and Guggenheim-Anderson-de Boer (GAM) models. The values of BET monomolecular layer were observed as 3.24 and 5.91kg water/kg dry solids, respectively for adsorption and desorption cycles.

AB - Open pore porosity of spaghetti was measured by helium (He) gas pycnometer and mercury (Hg) porosimetry and it was observed as 0.025 and 0.023, respectively. Pore size distribution curve from mercury porosimetry indicated two sharp crests, at alternate position of 59±8 μm and 6.4±0.9 μm diameter pore; while Scanning Electron Microscopy (SEM) showed two types of pores, first class was cracks and second one was holes. The average width of the cracks (channel) and diameters of holes were determined as 3.6±1.5 μm and 1.0±0.3, respectively. The moisture sorption isotherm of spaghetti was measured by dynamic sorption method and modeled by Brunauer-Emmett-Teller (BET) and Guggenheim-Anderson-de Boer (GAM) models. The values of BET monomolecular layer were observed as 3.24 and 5.91kg water/kg dry solids, respectively for adsorption and desorption cycles.

KW - Material Density

KW - Microscopy

KW - Particle Density

KW - Porosity

KW - Water Activity

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Characteristics of pores as measured by porosimetry and microscopy considering spaghetti as a model system

Abstract

Keywords

ASJC Scopus subject areas

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