Effects of heat-moisture treatment on normal and waxy rice flours and production of thermoplastic flour materials

Khamthong, Prapaisut; Lumdubwong, Namfone

doi:10.1016/j.carbpol.2012.05.049

Cited by 24 publications

(18 citation statements)

References 26 publications

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“…The low values of water loss are not shown in the thermograms. The second weight loss at about 300°C is assigned to the decomposition of rice flour components, mainly carbohydrates [32]. It is noteworthy that similar to the first decomposition, the weight loss percentages for second step increased with the increasing of the rice concentration in the samples.…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Ramimoghadam

Hussein

Taufiq‐Yap

2013

Chemistry Central Journal

126

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BackgroundRice as a renewable, abundant bio-resource with unique characteristics can be used as a bio-template to synthesize various functional nanomaterials. Therefore, the effect of uncooked rice flour as bio-template on physico-chemical properties, especially the morphology of zinc oxide nanostructures was investigated in this study.The ZnO particles were synthesized through hydrothermal-biotemplate method using zinc acetate-sodium hydroxide and uncooked rice flour at various ratios as precursors at 120°C for 18 hours.ResultsThe results indicate that rice as a bio-template can be used to modify the shape and size of zinc oxide particles. Different morphologies, namely flake-, flower-, rose-, star- and rod-like structures were obtained with particle size at micro- and nanometer range. Pore size and texture of the resulting zinc oxide particles were found to be template-dependent and the resulting specific surface area enhanced compared to the zinc oxide synthesized without rice under the same conditions. However, optical property particularly the band gap energy is generally quite similar.ConclusionPure zinc oxide crystals were successfully synthesized using rice flour as biotemplate at various ratios of zinc salt to rice. The size- and shape-controlled capability of rice to assemble the ZnO particles can be employed for further useful practical applications.

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Section: Resultsmentioning

confidence: 99%

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Ramimoghadam

Hussein

Taufiq‐Yap

2013

Chemistry Central Journal

126

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“…Research efforts have subsequently focused on extending HMT processes to flours (Lu et al 1995;Shinoda et al 2002;Takahashi et al 2002Takahashi et al , 2003Takahashi et al , 2005a ) and/or whole grains or kernels (Takahashi et al 2005b;Wongsagonsup et al 2008;Sun et al 2013) to take them one step closer to the intended application (Yue et al 1999, Cham & Suwannaporn 2010, Chung et al 2012a, Kobayashi & Nakamura 2013, Onyango et al 2013, West et al 2013, Chung et al 2014. HMT flours and starches have also shown potential for use in thermoplastic materials and resins (Khamthong & Lumdubwong 2012) and films (Singh et al 2009, Zavareze et al 2012b). …”

Section: Alternative Hmt Processing Methodsmentioning

confidence: 95%

Physical Modification of Food Starch Functionalities

BeMiller

Huber

2015

Annu. Rev. Food Sci. Technol.

235

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Because, in general, native starches do not have properties that make them ideally suited for applications in food products, most starch is modified by dervatization to improve its functionality before use in processed food formulations, and because food processors would prefer not to have to use the modified food starch label designation required when chemically modified starches are used, there is considerable interest in providing starches with desired functionalities that have not been chemically modified. One investigated approach is property modification via physical treatments, that is, modifications of starches imparted by physical treatments that do not result in any chemical modification of the starch. Physical treatments are divided into thermal and nonthermal treatments. Thermal treatments include those that produce pregelatinized and granular cold-water-swelling starches, heat-moisture treatments, annealing, microwave heating, so-called osmotic pressure treatment, and heating of dry starch. Nonthermal treatments include ultrahigh-pressure treatments, instantaneous controlled pressure drop, use of high-pressure homogenizers, dynamic pulsed pressure, pulsed electric field, and freezing and thawing.

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“…The formation and properties of RS can be affected by different processing methods and conditions (Li et al, 2011a). Various findings were presented that enzyme hydrolysis and heat-moisture treatments (HMT) are both effective methods to help produce resistant starch (Khamthong & Lumdubwong, 2012;Puncha-arnon & Uttapap, 2012). As to the former method, the means of enzyme hydrolysis is usually adopted by pullulanase debranching.…”

Section: Resistant Starch (Rs) Has Been Classified As a New Type Of Dmentioning

confidence: 99%

Effect of Resistant Starch as Dietary Fiber Substitute on Cookies Quality Evaluation

Wang

Gao

2014

FSTR

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Effects of heat-moisture treatment on normal and waxy rice flours and production of thermoplastic flour materials

Cited by 24 publications

References 26 publications

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Physical Modification of Food Starch Functionalities

Effect of Resistant Starch as Dietary Fiber Substitute on Cookies Quality Evaluation

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