AI Article Synopsis
- Gamma radiation offers a cost-effective and efficient method for producing starch nanoparticles (SNP), which are scalable and easy to make.
- Starch nanoparticles with sizes around 20-30 nm were successfully created from cassava and waxy maize starch using a gamma radiation dose of 20 kGy, demonstrating similar thermal properties to those obtained via acid hydrolysis.
- When used as nanofillers in a cassava matrix, the inclusion of just 2.5 wt.% of these SNP significantly increased the material's storage modulus by 102%, indicating their potential for enhancing starch-based materials.
Article Abstract
Gamma radiation arises as an advantageous alternative to obtain starch nanoparticles given its low cost, simple methodology and scalability. Starch nanoparticles (SNP) with sizes around 20 and 30 nm were obtained applying a dose of 20 kGy from cassava (CNP-γ) and waxy maize (WNP-γ) starch, respectively. They showed the same thermal degradation behavior and their maximum mass loss zone was similar to those nanoparticles obtained from acid hydrolysis (WNP-h). Additionally, CNP-γ and WNP-γ were used as nanofillers in a cassava matrix. Increments of 102% in storage modulus were obtained with the addition of only 2.5 wt.% of WNP-γ, showing that gamma radiation is a successful methodology to obtain SNP able to be used as starch reinforcement.
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| http://dx.doi.org/10.1016/j.carbpol.2013.04.081 | DOI Listing |
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