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Mohammad Reza Talaghat - One of the best experts on this subject based on the ideXlab platform.

  • enhancement of the performance of Modified Starch as a kinetic hydrate inhibitor in the presence of polyoxides for simple gas hydrate formation in a flow mini loop apparatus
    Journal of Natural Gas Science and Engineering, 2014
    Co-Authors: Mohammad Reza Talaghat
    Abstract:

    Abstract The main objective of the present work is the enhancement of the performance of Modified Starch as a kinetic inhibitor in the presence of polyoxides such as ethylene oxide (PEO) and polypropylene oxide (PPO) for simple gas hydrate formation in a flow mini-loop apparatus. Polyoxides such as PEO and PPO are high molecular weight polymers that are not kinetic inhibitors by themselves. For this investigation, a laboratory flow mini-loop apparatus was set up to measure the induction time and rate of gas hydrate formation when a hydrate forming substance (such as C 1 , C 3 , CO 2 and i-C 4 ) is contacted with water containing dissolved inhibitor in the presence or absence of polyoxides under suitable temperature and pressure conditions. In each experiment, water containing inhibitor blend saturated with pure gas is circulated up to a required pressure. Pressure is maintained at a constant value during experimental runs by means of required gas make-up. The effect of PEO and PPO on induction time and gas consumption during hydrate formation is investigated in the presence or absence of Modified Starch as a kinetic inhibitor. The results showed that the induction time is prolonged in the presence of PPO compared to the inhibitor alone. The efficiency of PPO is higher than the PEO, because, the induction time for simple gas hydrate formation in presence of PPO is greater than by using the PEO in presence of kinetic hydrate inhibitors. Also, the results show, that the gas consumption in the presence of Modified Starch is lower that in the absence of this inhibitor for all experiments. Moreover, the inhibition effect is clearly seen as well as the synergism between the inhibitor and PEO or PPO and this effect is higher in the presence of PPO.

  • experimental investigation of gas consumption for simple gas hydrate formation in a recirculation flow mini loop apparatus in the presence of Modified Starch as a kinetic inhibitor
    Journal of Natural Gas Science and Engineering, 2013
    Co-Authors: Mohammad Reza Talaghat
    Abstract:

    Abstract The main objective of the present work is to investigate experimentally the formation of simple gas hydrate with or without the presence of kinetic inhibitors such as Modified Starch in a recirculation flow loop. For this purpose, a laboratory recirculation flow mini-loop apparatus was set up to measure the induction time for hydrate formation and gas consumption rate when a hydrate forming substance (such as C 1 , C 3 , CO 2 and i-C 4 ) is contacted with water in the absence or presence of dissolved inhibitor under suitable temperature and pressure conditions. In each experiment, a water blend saturated with pure gas is circulated up to a required pressure. Pressure is maintained at a constant value during experimental runs by means of the required gas make-up. The effect of pressure on gas consumption during hydrate formation is investigated with or without the presence of polyvinylpyrrolidone (PVP) and Modified Starch as kinetic inhibitors at various concentrations. Our results show that the Modified Starch can be applied as an inhibitor in prevention of simple gas hydrate formation.

  • experimental investigation of double gas hydrate formation in the presence of Modified Starch as a kinetic inhibitor in a flow mini loop apparatus
    Canadian Journal of Chemical Engineering, 2012
    Co-Authors: Mohammad Reza Talaghat
    Abstract:

    The main objective of the present work is experimental investigation of double gas hydrate formation with or without presence of Modified Starch as kinetic inhibitors in a flow mini-loop apparatus. To this object, a laboratory flow mini-loop apparatus was set up to measure the induction time for hydrate formation and the rate uptake when a gaseous mixture (such as 75% C1–25% C3, 25% C1–75% C3, 75% C1–25% i-C4 and 25% C1–75% i-C4) is contacted with water containing or not containing dissolved inhibitor under suitable temperature and pressure conditions. In each experiment, water blend saturated with gas mixture is circulated up to a required pressure. Pressure is maintained at a constant value during experimental runs by means of required gas mixture make-up. The effect of pressure on gas consumption during hydrate formation is investigated with or without presence of polyvinylpyrrolidone and Modified Starch as kinetic inhibitors at various concentrations. Our results were shown that the Modified Starch can be applied as inhibitors in prevention of double gas hydrate formation in mini-loop apparatus. © 2011 Canadian Society for Chemical Engineering

Ali Akbar Entezami - One of the best experts on this subject based on the ideXlab platform.

  • Physical properties of edible Modified Starch/carboxymethyl cellulose films
    Innovative Food Science and Emerging Technologies, 2010
    Co-Authors: Babak Ghanbarzadeh, Hadi Almasi, Ali Akbar Entezami
    Abstract:

    article i nfo Article history: Received 29 March 2009 Accepted 2 June 2010 Novel Modified Starch/carboxy methyl cellulose (CMC) composite films were prepared by a casting method. The effects of CMC addition on the some physical properties of the resulted blend films were investigated. The blend film composed of 15% W/W CMC /Starch, showed the lowest water vapor permeability (WVP) value (2.34×10 −7 g/m . h . Pa).The moisture absorption and solubility in water properties of the blend films exhibited similar trends. The addition of CMC at the level of 20% W/W Starch caused an increase in the ultimate tensile strength (UTS) by more than 59% in comparison to the pure Starch film without any significant decrease in the strain to break (SB). The measurement of color values showed that by the increasing of the CMC content in polymer matrix, the b values (yellowness), YI and ΔE of the blend films decreased and the L values (Lightness) and WI index increased. Industrial relevance: Ecological concerns have resulted in a renewed interest in natural and compostable materials, and therefore issues such as biodegradability and environmental safety are becoming important. Tailoring new products within a perspective of sustainable development or eco-design, is a philosophy that is applied to more and more materials. It is the reason why material components such as natural fibres, biodegradable polymers can be considered as interesting - environmentally safe - alternatives for the development of new biodegradable composites. Development of biodegradable materials based on Starch has become a very attractive option and production of Starch based plastic are gradually obtained considerable concern in the world. In this research, improvement of Starch film properties is investigated.

  • physical properties of edible Modified Starch carboxymethyl cellulose films
    Innovative Food Science and Emerging Technologies, 2010
    Co-Authors: Babak Ghanbarzadeh, Hadi Almasi, Ali Akbar Entezami
    Abstract:

    article i nfo Article history: Received 29 March 2009 Accepted 2 June 2010 Novel Modified Starch/carboxy methyl cellulose (CMC) composite films were prepared by a casting method. The effects of CMC addition on the some physical properties of the resulted blend films were investigated. The blend film composed of 15% W/W CMC /Starch, showed the lowest water vapor permeability (WVP) value (2.34×10 −7 g/m . h . Pa).The moisture absorption and solubility in water properties of the blend films exhibited similar trends. The addition of CMC at the level of 20% W/W Starch caused an increase in the ultimate tensile strength (UTS) by more than 59% in comparison to the pure Starch film without any significant decrease in the strain to break (SB). The measurement of color values showed that by the increasing of the CMC content in polymer matrix, the b values (yellowness), YI and ΔE of the blend films decreased and the L values (Lightness) and WI index increased. Industrial relevance: Ecological concerns have resulted in a renewed interest in natural and compostable materials, and therefore issues such as biodegradability and environmental safety are becoming important. Tailoring new products within a perspective of sustainable development or eco-design, is a philosophy that is applied to more and more materials. It is the reason why material components such as natural fibres, biodegradable polymers can be considered as interesting - environmentally safe - alternatives for the development of new biodegradable composites. Development of biodegradable materials based on Starch has become a very attractive option and production of Starch based plastic are gradually obtained considerable concern in the world. In this research, improvement of Starch film properties is investigated.

Rekha Satishchandra Singhal - One of the best experts on this subject based on the ideXlab platform.

  • stability of cumin oleoresin microencapsulated in different combination of gum arabic maltodextrin and Modified Starch
    Carbohydrate Polymers, 2007
    Co-Authors: Dattanand Kanakdande, Rajesh Bhosale, Rekha Satishchandra Singhal
    Abstract:

    Abstract Microencapsulations of cumin oleoresin by spray drying using gum arabic, maltodextrin, and Modified Starch (HiCap ® 100) and their ternary blends as wall materials were studied for its encapsulation efficiency and stability under storage. The microcapsules were evaluated for the content and stability of volatiles, and total cuminaldehyde, γ-terpinene and p -cymene content for six weeks. Gum arabic offered greater protection than maltodextrin and Modified Starch, in general, although the order of protection offered was volatiles > cuminaldehyde >  p -cymene > γ-terpinene. A 4/6:1/6:1/6 blend of gum arabic/maltodextrin/Modified Starch offered a protection, better than gum arabic as seen from the t 1/2 , i.e. time required for a constituent to reduce to 50% of its initial value. However protective effect of ternary blend was not similar for the all the constituents, and followed an order of volatiles >  p -cymene > cuminaldehyde > γ-terpinene.

  • Stability of cumin oleoresin microencapsulated in different combination of gum arabic, maltodextrin and Modified Starch
    Carbohydrate Polymers, 2007
    Co-Authors: Dattanand Kanakdande, Rajesh Bhosale, Rekha Satishchandra Singhal
    Abstract:

    Microencapsulations of cumin oleoresin by spray drying using gum arabic, maltodextrin, and Modified Starch (HiCap®100) and their ternary blends as wall materials were studied for its encapsulation efficiency and stability under storage. The microcapsules were evaluated for the content and stability of volatiles, and total cuminaldehyde, γ-terpinene and p-cymene content for six weeks. Gum arabic offered greater protection than maltodextrin and Modified Starch, in general, although the order of protection offered was volatiles > cuminaldehyde > p-cymene > γ-terpinene. A 4/6:1/6:1/6 blend of gum arabic/maltodextrin/Modified Starch offered a protection, better than gum arabic as seen from the t1/2, i.e. time required for a constituent to reduce to 50% of its initial value. However protective effect of ternary blend was not similar for the all the constituents, and followed an order of volatiles > p-cymene > cuminaldehyde > γ-terpinene. © 2006 Elsevier Ltd. All rights reserved.

  • the use of gum arabic and Modified Starch in the microencapsulation of a food flavoring agent
    Carbohydrate Polymers, 2005
    Co-Authors: Savitha Krishnan, Atul Chandrakant Kshirsagar, Rekha Satishchandra Singhal
    Abstract:

    Solvent extracted oleoresins exhibit a flavor profile, close to the freshly ground spice in a wide spectrum of foods. In spite of their many advantages over ground spices, their sensitivity to light, heat and oxygen is a disadvantage. One approach to overcome this disadvantage is by means of microencapsulation. The present work reports on microencapsulation of cardamom oleoresin by spray drying using gum arabic, maltodextrin, and a commercially available Modified Starch as wall materials. The microcapsules were evaluated for the content and stability of volatiles, non-volatiles, entrapped 1,8-cineole and entrapped α-terpinyl acetate for 6 weeks. Gum arabic offered greater protection to the oleoresin than maltodextrin and Modified Starch, as seen from the t1/2, time required for a constituent to reduce to 50% of its initial value.

  • microencapsulation of cardamom oleoresin evaluation of blends of gum arabic maltodextrin and a Modified Starch as wall materials
    Carbohydrate Polymers, 2005
    Co-Authors: Savitha Krishnan, Rajesh Bhosale, Rekha Satishchandra Singhal
    Abstract:

    Abstract Although the spice oleoresins provide complete flavour profile than their respective essential oils, their sensitivity to the light, heat and oxygen is a disadvantage. This can be overcome by effective encapsulation. The present work reports on the microencapsulation of cardamom oleoresin by spray drying using binary and ternary blends of gum arabic, maltodextrin, and Modified Starch as wall materials. The microcapsules were evaluated for the content and stability of volatiles, entrapped 1,8-cineole and entrapped α-terpinyl acetate for 6 weeks. A 4/6,1/6,1/6 blend of gum arabic:maltodextrin:Modified Starch offered a protection, better than gum arabic as seen from the t 1/2 , time required for a constituent to reduce to 50% of its initial value.

  • The use of gum arabic and Modified Starch in the microencapsulation of a food flavoring agent
    Carbohydrate Polymers, 2005
    Co-Authors: Savitha Krishnan, Atul Chandrakant Kshirsagar, Rekha Satishchandra Singhal
    Abstract:

    Solvent extracted oleoresins exhibit a flavor profile, close to the freshly ground spice in a wide spectrum of foods. In spite of their many advantages over ground spices, their sensitivity to light, heat and oxygen is a disadvantage. One approach to overcome this disadvantage is by means of microencapsulation. The present work reports on microencapsulation of cardamom oleoresin by spray drying using gum arabic, maltodextrin, and a commercially available Modified Starch as wall materials. The microcapsules were evaluated for the content and stability of volatiles, non-volatiles, entrapped 1,8-cineole and entrapped ??-terpinyl acetate for 6 weeks. Gum arabic offered greater protection to the oleoresin than maltodextrin and Modified Starch, as seen from the t1/2, time required for a constituent to reduce to 50% of its initial value. ?? 2005 Elsevier Ltd. All rights reserved.

Babak Ghanbarzadeh - One of the best experts on this subject based on the ideXlab platform.

  • Physical properties of edible Modified Starch/carboxymethyl cellulose films
    Innovative Food Science and Emerging Technologies, 2010
    Co-Authors: Babak Ghanbarzadeh, Hadi Almasi, Ali Akbar Entezami
    Abstract:

    article i nfo Article history: Received 29 March 2009 Accepted 2 June 2010 Novel Modified Starch/carboxy methyl cellulose (CMC) composite films were prepared by a casting method. The effects of CMC addition on the some physical properties of the resulted blend films were investigated. The blend film composed of 15% W/W CMC /Starch, showed the lowest water vapor permeability (WVP) value (2.34×10 −7 g/m . h . Pa).The moisture absorption and solubility in water properties of the blend films exhibited similar trends. The addition of CMC at the level of 20% W/W Starch caused an increase in the ultimate tensile strength (UTS) by more than 59% in comparison to the pure Starch film without any significant decrease in the strain to break (SB). The measurement of color values showed that by the increasing of the CMC content in polymer matrix, the b values (yellowness), YI and ΔE of the blend films decreased and the L values (Lightness) and WI index increased. Industrial relevance: Ecological concerns have resulted in a renewed interest in natural and compostable materials, and therefore issues such as biodegradability and environmental safety are becoming important. Tailoring new products within a perspective of sustainable development or eco-design, is a philosophy that is applied to more and more materials. It is the reason why material components such as natural fibres, biodegradable polymers can be considered as interesting - environmentally safe - alternatives for the development of new biodegradable composites. Development of biodegradable materials based on Starch has become a very attractive option and production of Starch based plastic are gradually obtained considerable concern in the world. In this research, improvement of Starch film properties is investigated.

  • physical properties of edible Modified Starch carboxymethyl cellulose films
    Innovative Food Science and Emerging Technologies, 2010
    Co-Authors: Babak Ghanbarzadeh, Hadi Almasi, Ali Akbar Entezami
    Abstract:

    article i nfo Article history: Received 29 March 2009 Accepted 2 June 2010 Novel Modified Starch/carboxy methyl cellulose (CMC) composite films were prepared by a casting method. The effects of CMC addition on the some physical properties of the resulted blend films were investigated. The blend film composed of 15% W/W CMC /Starch, showed the lowest water vapor permeability (WVP) value (2.34×10 −7 g/m . h . Pa).The moisture absorption and solubility in water properties of the blend films exhibited similar trends. The addition of CMC at the level of 20% W/W Starch caused an increase in the ultimate tensile strength (UTS) by more than 59% in comparison to the pure Starch film without any significant decrease in the strain to break (SB). The measurement of color values showed that by the increasing of the CMC content in polymer matrix, the b values (yellowness), YI and ΔE of the blend films decreased and the L values (Lightness) and WI index increased. Industrial relevance: Ecological concerns have resulted in a renewed interest in natural and compostable materials, and therefore issues such as biodegradability and environmental safety are becoming important. Tailoring new products within a perspective of sustainable development or eco-design, is a philosophy that is applied to more and more materials. It is the reason why material components such as natural fibres, biodegradable polymers can be considered as interesting - environmentally safe - alternatives for the development of new biodegradable composites. Development of biodegradable materials based on Starch has become a very attractive option and production of Starch based plastic are gradually obtained considerable concern in the world. In this research, improvement of Starch film properties is investigated.

Hadi Almasi - One of the best experts on this subject based on the ideXlab platform.

  • Physical properties of edible Modified Starch/carboxymethyl cellulose films
    Innovative Food Science and Emerging Technologies, 2010
    Co-Authors: Babak Ghanbarzadeh, Hadi Almasi, Ali Akbar Entezami
    Abstract:

    article i nfo Article history: Received 29 March 2009 Accepted 2 June 2010 Novel Modified Starch/carboxy methyl cellulose (CMC) composite films were prepared by a casting method. The effects of CMC addition on the some physical properties of the resulted blend films were investigated. The blend film composed of 15% W/W CMC /Starch, showed the lowest water vapor permeability (WVP) value (2.34×10 −7 g/m . h . Pa).The moisture absorption and solubility in water properties of the blend films exhibited similar trends. The addition of CMC at the level of 20% W/W Starch caused an increase in the ultimate tensile strength (UTS) by more than 59% in comparison to the pure Starch film without any significant decrease in the strain to break (SB). The measurement of color values showed that by the increasing of the CMC content in polymer matrix, the b values (yellowness), YI and ΔE of the blend films decreased and the L values (Lightness) and WI index increased. Industrial relevance: Ecological concerns have resulted in a renewed interest in natural and compostable materials, and therefore issues such as biodegradability and environmental safety are becoming important. Tailoring new products within a perspective of sustainable development or eco-design, is a philosophy that is applied to more and more materials. It is the reason why material components such as natural fibres, biodegradable polymers can be considered as interesting - environmentally safe - alternatives for the development of new biodegradable composites. Development of biodegradable materials based on Starch has become a very attractive option and production of Starch based plastic are gradually obtained considerable concern in the world. In this research, improvement of Starch film properties is investigated.

  • physical properties of edible Modified Starch carboxymethyl cellulose films
    Innovative Food Science and Emerging Technologies, 2010
    Co-Authors: Babak Ghanbarzadeh, Hadi Almasi, Ali Akbar Entezami
    Abstract:

    article i nfo Article history: Received 29 March 2009 Accepted 2 June 2010 Novel Modified Starch/carboxy methyl cellulose (CMC) composite films were prepared by a casting method. The effects of CMC addition on the some physical properties of the resulted blend films were investigated. The blend film composed of 15% W/W CMC /Starch, showed the lowest water vapor permeability (WVP) value (2.34×10 −7 g/m . h . Pa).The moisture absorption and solubility in water properties of the blend films exhibited similar trends. The addition of CMC at the level of 20% W/W Starch caused an increase in the ultimate tensile strength (UTS) by more than 59% in comparison to the pure Starch film without any significant decrease in the strain to break (SB). The measurement of color values showed that by the increasing of the CMC content in polymer matrix, the b values (yellowness), YI and ΔE of the blend films decreased and the L values (Lightness) and WI index increased. Industrial relevance: Ecological concerns have resulted in a renewed interest in natural and compostable materials, and therefore issues such as biodegradability and environmental safety are becoming important. Tailoring new products within a perspective of sustainable development or eco-design, is a philosophy that is applied to more and more materials. It is the reason why material components such as natural fibres, biodegradable polymers can be considered as interesting - environmentally safe - alternatives for the development of new biodegradable composites. Development of biodegradable materials based on Starch has become a very attractive option and production of Starch based plastic are gradually obtained considerable concern in the world. In this research, improvement of Starch film properties is investigated.