Gamma-irradiation of cellulose nanocrystals (CNCs): investigation of physicochemical and antioxidant properties

Criado, Paula; Fraschini, Carole; Jamshidian, Majid; Salmieri, Stéphane; Sáfrány, Ágnes; Lacroix, Monique

doi:10.1007/s10570-017-1241-x

Cited by 33 publications

(28 citation statements)

References 56 publications

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“…Criado et al. used this method to quantify REGs in commercial CNCs, derived from H 2 SO 4 hydrolysis of bleached softwood kraft pulp (FPInnovations’ Pilot Plant, Canada) [183] . They determined a value of 20±4 μmol g −1 of REGs (DP N =309±62).…”

Section: Confirmation and Quantification Of The End‐wise Modificationmentioning

confidence: 99%

Chemical Modification of Reducing End‐Groups in Cellulose Nanocrystals

et al. 2020

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(Finland) and works as apart of the FinnCEREScommunity (Aalto University and VTT,F inland) in the group of Eero Kontturi. She received her PhD in 2017 from TU Dresden (Germany) under the direction of Prof. S. Fischer.H er current research lies at the interface between nanocellulose materials science and organic synthesis. Gwendoline Delepierre has aM aster's degree in chemistry from KU Leuven (Belgium), where she was involved in various research projects on cellulose nanocrystals. She started her PhD at the Adolphe Merkle Institute in 2017 under the supervision of Prof. Christoph Weder and Dr.Justin Zoppe. She is currently on an exchange at the University of British Columbia in Vancouver (Canada) under the supervision of Prof.

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Section: Confirmation and Quantification Of The End‐wise Modificationmentioning

confidence: 99%

Chemical Modification of Reducing End‐Groups in Cellulose Nanocrystals

et al. 2020

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“…[181] Diese basiert auf der Konjugation von Aldehyden mit 4-Amino-3-hydrazino-5-mercapto- (DP N = 309 AE 62). [182] Die Methode wurde weiterhin genutzt, um einen steigenden Aldehydgehalt nach einer Gammabestrahlung von CNC-Suspensionen zu bestimmen, um ein besseres Verständnis ihrer antioxidativen Eigenschaften zu erlangen. Heise et al nutzten die Carbazol-9-carbonyloxyamin (CCOA)-Methode [73,74] zur Quantifizierung von REGs unmodifizierter CNCs aus H 2 SO 4 -hydrolysierten Baumwoll-Linters.…”

Section: Direkte Ansätze -Elektronenmikroskopieunclassified

“…Criado et al. nutzten diese Methode zur Quantifizierung der REGs von kommerziellen CNCs aus H 2 SO 4 ‐hydrolysiertem, gebleichtem Nadelholz‐Kraftzellstoff (FPInnovations’ Pilot Plant, Kanada) und ermittelten einen REG‐Wert von 20±4 μmol g −1 (DP N =309±62) [182] . Die Methode wurde weiterhin genutzt, um einen steigenden Aldehydgehalt nach einer Gammabestrahlung von CNC‐Suspensionen zu bestimmen, um ein besseres Verständnis ihrer antioxidativen Eigenschaften zu erlangen.…”

Section: Bestätigung Und Quantifizierung Endgruppenselektiver Modifizunclassified

Chemische Modifizierung der reduzierenden Enden von Cellulosenanokristallen

et al. 2020

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“…For FT-IR, there was no major change in the spectra in both groups of leaves at three positions, but modifications were observed in some peaks ( Figure 1). The band around 1650 cm −1 was assigned to the water associated with lignin or cellulose (Criado et al, 2017;Popescu et al, 2007). The band around 660 cm −1 was assigned to CH 2 bending in the cell contents, including major constituents of proteins, carbohydrates, and lipids (Sivakumar et al, 2014).The significance of carbonyl group (C = O) stretching around at 1730 cm −1 directly involved in action of gamma irradiation for chain scissions (Orozco et al, 2012).…”

Section: Physicochemical Properties Of Native Vs Irradiated Mulberrymentioning

confidence: 99%

Improving the nutritive value of mulberry leaves, Morus spp. (Rosales: Moraceae) for silkworm larvae, Bombyx mori (Lepidoptera: Bombycidae) using gamma irradiation

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Kovitvadhi

et al. 2020

Journal of Radiation Research and Applied Sciences

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The nutritive value and in vitro digestibility using the digestive enzyme extracts from different stages of silkworm larvae (Bombyx mori) were evaluated in different leaf positions (1, 2, 3, 4, or 5) of mulberry leaves (Morus spp.) with or without gamma irradiation treatment (native vs. irradiated). At least one of studied factors and their interaction had effects on the overall proximate composition and physicochemical properties (p < 0.05), in terms of water absorption index, water solubility, swelling power, pH, relative crystallinity, and FT-IR spectra. Cellulase activity was significantly decreased with larval stage, while a similar pattern was observed for amylase activity, but with relatively low activity in the first stage. The highest trypsin activity was observed in the fourth stage, followed by the second and fifth stages. These changes across the five larval stages could have significant effects on the in vitro digestibility of protein (IVPD) and carbohydrate (IVCD), as well as the effect of leaf position on IVCD. However, significant improvements in IVPD and IVCD were obtained for irradiated leaves relative to the control native leaves, independent of all studied factors.

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Gamma-irradiation of cellulose nanocrystals (CNCs): investigation of physicochemical and antioxidant properties

Cited by 33 publications

References 56 publications

Chemical Modification of Reducing End‐Groups in Cellulose Nanocrystals

Chemical Modification of Reducing End‐Groups in Cellulose Nanocrystals

Chemische Modifizierung der reduzierenden Enden von Cellulosenanokristallen

Improving the nutritive value of mulberry leaves, Morus spp. (Rosales: Moraceae) for silkworm larvae, Bombyx mori (Lepidoptera: Bombycidae) using gamma irradiation

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