Studies of the retrogradation process for various starch gels using Raman spectroscopy

Fechner, Petra M.; Wartewig, S.; Kleinebudde, Peter; Neubert, Reinhard H.H.

doi:10.1016/j.carres.2005.08.018

Cited by 76 publications

(47 citation statements)

References 21 publications

(30 reference statements)

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“…Qualitative and quantitative information can then be obtained by comparing the number, position, and intensity of the bands with the deconvolved spectra. 68 Recently, Raman spectroscopy was used to monitor the retrogradation process of various starch gels, 69 and NIR spectroscopy was employed to study the physical and chemical properties of polysaccharide gels. 70 Mid-IR and Raman spectroscopic techniques were also used for the identification of polysaccharide ingredients, and the determination of chemical composition of phycocolloids (alginates, agar, and carrageenan) used in the food industry.…”

Section: Qualitative and Quantitative Analysis Of Starches And Other mentioning

confidence: 99%

Applications of Vibrational Spectroscopy to the Analysis of Polysaccharide and Hydrocolloid Ingredients

Choi

Yuen

Phillips

et al. 2001

Handbook of Vibrational Spectroscopy

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The applications of vibrational spectroscopy to study the structure of polysaccharide and hydrocolloid ingredients are presented. Vibrational spectroscopy, including infrared (IR) and Raman spectroscopies, has been used for both qualitative and quantitative analysis of starches and other polysaccharide ingredients. Some structural characteristics of starch and nonstarch polysaccharides have been studied using various vibrational spectroscopic techniques. The degree of substitution (DS) in modified polysaccharides can also be determined by IR and Raman spectroscopy, replacing the traditional wet chemistry procedure. Vibrational spectroscopy has also been used to determine protein structural characteristics and to monitor conformational changes under different buffer conditions. Conformation is an important parameter affecting the functional properties of protein hydrocolloids, and extensive conformational changes may occur during food processing and interactions with other food ingredients. Fourier transform (FT)–mid‐IR spectroscopy has been used to obtain information on protein structure and protein–protein and protein–lipid interactions. The extent of modification in modified food proteins and the effect of these modifications on protein conformation have been monitored by Raman spectroscopy. These modified polysaccharide and protein hydrocolloids, with enhanced gelling, thickening, and emulsifying properties, are important hydrocolloid ingredients for a wide variety of food products.

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Section: Qualitative and Quantitative Analysis Of Starches And Other mentioning

confidence: 99%

Applications of Vibrational Spectroscopy to the Analysis of Polysaccharide and Hydrocolloid Ingredients

Choi

Yuen

Phillips

et al. 2001

Handbook of Vibrational Spectroscopy

View full text Add to dashboard Cite

show abstract

“…Natural and synthetic (or processed) cellulosic fibers organize into aligned crystalline manifolds with varying degrees of organization and crystallinity leading to varying material properties. Traditionally, X-ray crystallography and Raman spectroscopy have been used for characterizing cellulose crystallinity and structure [33][34][35]. In particular, polarization-resolved vibrational spectroscopy has proven to be a powerful tool for discerning bond orientation directions in cellulose [35][36][37][38][39].…”

Section: Resultsmentioning

confidence: 99%

Hyperspectral multimodal CARS microscopy in the fingerprint region

Pegoraro

Slepkov

Ridsdale

et al. 2012

Journal of Biophotonics

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A simple scheme for multimodal coherent anti-Stokes Raman scattering (CARS) microscopy is based on the spectral focusing of ultrafast-oscillator-derived pump/probe light and synchronous photonic crystal fiber (PCF) fiber-generated broadband Stokes light. To date, such schemes allowed rapid hyperspectral imaging throughout the CH/OH high frequency region (2700-4000 cm(-1) ). Here we extend this approach to the middle (1640-3300 cm(-1) ) and fingerprint regions (850-1800 cm(-1) ) of the Raman spectrum. Our simple integrated approach to rapid hyperspectral CARS microscopy in the fingerprint region is demonstrated by applications to label-free multimodal imaging of cellulose and bulk bone, including use of the phosphate resonance at 960 cm(-1) .

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“…Also, thanks to the well-established modification techniques, starch can gelatinize in a broad temperature range (e.g. within normal body temperature), while maintaining properties of high viscosity and retrogradation [29]. This advantage allows cells, biomolecules and drugs to be loaded in situ into porous architectures made of different materials while preserving high cell viability and molecular activity, which is challenging to achieve for many other fabrication techniques [30].…”

Section: Discussionmentioning

confidence: 99%

A versatile three-dimensional foam fabrication strategy for soft and hard tissue engineering

Bai

Yang

et al. 2018

Biomed. Mater.

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The fabrication strategies of three-dimensional porous biomaterials have been extensively studied and well established in the past few decades, yet the biocompatibility and versatility of porous architecture preparation is still lacking. Herewith, we present a novel and green 3D porous foam fabrication technique for both soft and hard engineering. By utilizing the gelatinization and retrogradation properties of starches, stabilized porous constructs made of various building blocks, from living cells to ceramic particles, were created for the first time. In soft tissue engineering applications, 3D cultured tissue foam (CTF) with controlled cell release properties was developed, and foams constituting osteoblasts, fibroblasts and vascular endothelial cells all exhibited high mechanical stability and preservation of cell viability or functions. More importantly, the CTF achieved sustained self-release of cells controlled by serum concentration (containing amylase) and the released cells also maintained high viability and functions. In the context of hard tissue engineering applications, ceramic/bioglass (BG) foam scaffolds were developed by a similar starch-assisted foaming strategy where the resultant bone scaffolds of hydroxyapatite (HA)/BG and Si 3 N 4 /BG possessed >70% porosity with interconnected macropores (sizes 200∼400 μm), fine pores (sizes 1∼10 μm) and superior mechanical properties despite the high porosity. Additionally, in vitro and in vivo evaluations of the biological properties revealed that porous HA/BG foam exhibits the desired biocompatibility and osteogenesis. The in vivo study indicated new bone ingrowth after 1 week and significant increases in new bone volume after 2 weeks. In conclusion, the presented foaming strategy provides opportunities for biofabricating CTF with different cells for different target soft tissues and preparing porous ceramic/ BG foams with different material components and high strengths, showing great versatility in soft and hard tissue engineering.

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Studies of the retrogradation process for various starch gels using Raman spectroscopy

Cited by 76 publications

References 21 publications

Applications of Vibrational Spectroscopy to the Analysis of Polysaccharide and Hydrocolloid Ingredients

Applications of Vibrational Spectroscopy to the Analysis of Polysaccharide and Hydrocolloid Ingredients

Hyperspectral multimodal CARS microscopy in the fingerprint region

A versatile three-dimensional foam fabrication strategy for soft and hard tissue engineering

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