Study of starch aging characteristics based on Terahertz technology

Wang, Tao; Wang, Shuya; Zhai, Chen; Wang, Liang; Xie, Yonghong; Li, Qian; Xu, Zheng

doi:10.1002/fsn3.2417

Cited by 12 publications

(4 citation statements)

References 34 publications

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“…The degree of crystallinity for 6-month stored roasted seeds was 30%, which was signi cantly higher than that of freshly roasted seeds even when the moisture content of the seeds did not change. Wang et al (2021) also reported an increase in the degree of crystallinity of heatdegraded starch after aging. Rupollo et al (2011) reported increase in the degree of crystallinity of starches isolated from beans after storage at normal environmental conditions.…”

Section: Xrd Analysismentioning

confidence: 87%

Change in popping, structural, functional, and crystalline properties of roasted makhana seeds in prolong storage: an FTIR, GC-MS, SEM, XRD study

Sharma,

Patel,

Jha

et al. 2024

Preprint

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Effect of storage duration on changes in the popping behaviour due to structural, physico-chemical, and crystalline properties alterations of raw, roasted and 6-month stored roasted makhana seeds was studied using scanning electron microscopy (SEM), FTIR, GC-MS. Dynamic light scattering (DSC), x-ray diffraction (XRD), and differential scanning calorimetry (DSC) analysis. The roasted seed were stored in under airtight polypropylene packets for 6 months. Popped makhana recovery did not change significantly up to 150 days of storage and decreased significantly thereafter. SEM analysis showed that the capillaries were formed in the roasted kernel after 6-months storage due to slow release of water molecules as a result of starch retrogradation during storage. FTIR analysis showed similar peaks for the functional groups and 16 volatile compounds were identified by GC-MS analysis. Hydrated particle size of the samples decreased after 6-month storage, which was less than popped makhana but higher than raw makhana seeds. Long chains of amylopectin broke into shorter double helices after storage. Degree of crystallinity of raw, fresh roasted, and 6-month stored roasted seeds were 31%, 22.5%, and 30%, respectively. Increase in crystallinity was found to be responsible for the significant reduction in popped makhana recovery after 6-months storage because the water molecules detached from the starch were trapped in the capillaries and changed the starch structure to the crystalline phase.

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Section: Xrd Analysismentioning

confidence: 87%

Change in popping, structural, functional, and crystalline properties of roasted makhana seeds in prolong storage: an FTIR, GC-MS, SEM, XRD study

Sharma,

Patel,

Jha

et al. 2024

Preprint

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show abstract

“…This proof is particularly useful in determining the crystallinity of starch, as the THz peak at 9.0 THz was correlated with the crystallinity obtained by X-ray diffraction. The THz experimental method has also been applied to real-time monitoring of the starch ageing process [158], which means that THz technology can provide an effective tool in starch-related production and processing industries, including the bioeconomy.…”

Section: Starch-based Biopolymersmentioning

confidence: 99%

Review of Bioplastics Characterisation by Terahertz Techniques in the View of Ensuring a Circular Economy

Abina,

Korošec,

Puc

et al. 2023

Photonics

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The increasing scarcity of natural resources, worsening global climate change, environmental degradation, and rising demand for food are forcing the biotechnology and plastics industries to seek and apply circular economy models that would lead to a sustainable transition in the production and use of bioplastics. Circular economy models can improve the economic productivity of bio-based plastics and have a positive impact on the environment by reducing conventional plastic waste and the consumption of petrochemical feedstocks for plastic production. In addition, some agricultural wastes that have the potential to be used as bioplastics can be reused. Terahertz (THz) systems are already used in the plastics and rubber industries for non-destructive testing, detection, imaging, and quality control. Several reports have highlighted the potential applications of THz spectroscopy and imaging in polymer analysis and plastics characterisation. This potential is even greater with chemometric methods and artificial intelligence algorithms. In this review, we focus on applications that support the transformation of the biotechnology sector to the circular economy, particularly via the transition from conventional plastics to bioplastics. In this review, we discuss the potential of THz systems for the characterisation and analysis of bioplastics and biopolymers. The results of previous studies on biopolymers in the THz frequency range are summarised. Furthermore, the potential of using artificial intelligence approaches such as machine learning as advanced analytical methods in THz spectroscopy and imaging, in addition to the conventionally used chemometric methods, is discussed. The results of this review highlight that THz technology can contribute to closed technological circles in important areas of biotechnology and the related plastics and rubber industries.

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“…The absorption coefficients of starch, and other plant compound have been determined [63][64][65][66][67]. Moreover, the separation of seeds based on their bacterial blight resistance or genetic modifications has been described [68,69].…”

Section: Effects On Plant and Fungi Matter 41 Plantsmentioning

confidence: 99%

Introduction to the Biological Effects of Terahertz Radiation

Bucur-Portase¹

2023

Trends in Terahertz Technology

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Terahertz (THz) radiation has been noted to affect biological organisms to a unique degree with various effects ranging from modifications brought to protein activity to epigenetic changes that lead to altered metabolism or reproduction. These effects are classified into thermal and non-thermal, with the former being caused by THz’s capacity to induce localised thermal changes while the latter involves more complex interactions with cells’ macromolecules which are poorly understood. Terahertz’s ability to enhance actin polymerisation and alter gene expression leads to a number of possible applications in agriculture, as it has been observed that certain plant species have higher growth speeds post-exposure, and medicine, with cancer’s rapid division being possibly slowed down.

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Study of starch aging characteristics based on Terahertz technology

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 12 publications

References 34 publications

Change in popping, structural, functional, and crystalline properties of roasted makhana seeds in prolong storage: an FTIR, GC-MS, SEM, XRD study

Change in popping, structural, functional, and crystalline properties of roasted makhana seeds in prolong storage: an FTIR, GC-MS, SEM, XRD study

Review of Bioplastics Characterisation by Terahertz Techniques in the View of Ensuring a Circular Economy

Introduction to the Biological Effects of Terahertz Radiation

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