Radiolysis of Various Classes of Carbohydrates

Kochetkov, N. K.; Kudrjashov, L.I.; Chlenov, Michael

doi:10.1016/b978-0-08-022962-1.50008-9

Cited by 3 publications

(3 citation statements)

References 111 publications

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“…However, the primary radicals of water could cause chemical changes, such as hydrolysis and oxidation. Identifying products after irradiation of carbohydrates has shown that oxidation was a predominant transformation (Raffi et al, 1981a-c;Kochetkov et al, 1979). Colonna et al (1987) suggested that in the dry state (less than 12% moisture), water hydrolysis was negligible.…”

Section: Introduction Thementioning

confidence: 99%

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Gamma‐Irradiated Dry Bean (Phaseolus vulgaris) Starch: Physicochemical Properties

Rayas‐Duarte

Rupnow

1994

Journal of Food Science

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Great Northern bean starch, irradiated at doses of 2.5-20 kGy, had increased free and total acidity, concomitant with a pH decrease from 6.9 to 3.9 and a rapid increase of reducing value. The swelling power of the bean starch decreased with irradiation dose. A rapid increase of water and 80% ethanol solubility at 25°C was observed at doses ~10 kGy. No differences were detected on damaged starch or changes in X-;ay diffraction pattern. ESR spectra of the irradiated bean starch after 9 and 11 mo storage (-40°C) showed the presence of long life radicals, which could be stabilized after adding water.

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Section: Introduction Thementioning

confidence: 99%

“…Researchers have reported the susceptibility of C-H bonds of polysaccharides to hydroxyl radical reaction with subsequent hydrogen loss (Kochetkov et al, 1979;Colonna et al, 1987). Adding water may increase the number of interactions.…”

Section: Introduction Thementioning

confidence: 99%

Gamma‐Irradiated Dry Bean (Phaseolus vulgaris) Starch: Physicochemical Properties

Rayas‐Duarte

Rupnow

1994

Journal of Food Science

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“…DAD was obtained through oxidation of dextran by an aqueous solution of iodic acid. 12 The reaction proceeds readily at room temperature with a yield Scheme 3. Synthesis of dextran-based macro-initiators.…”

Section: Resultsmentioning

confidence: 99%

Peroxide macro‐initiators for improving biodegradability of polymers

Voronov

Donchak

Harhai

et al. 2001

Polymer International

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Modi®cation of dextrin by tert-butylperoxy methanol or its acylation with cyclic anhydride containing a peroxide group resulted in macro-initiators with randomly located peroxide fragments in the polysaccharide.When dextran was oxidized with iodic acid, dialdehydedextran was obtained. Its aldehyde groups reacted with tert-butyl hydroperoxide to give functional peroxide groups. The content of peroxide fragments depended directly on the ratio of reagents.The resulting macro-initiators may be used for synthesizing graft copolymers with polystyrene on poly(butyl acrylate) containing polysaccharide.

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Nonenzymatic browning induced by gamma ⁶⁰Co irradiation in model system Part 3. Spectrophotometric investigation of the carbonyl products in the system fructose/phenylalanine in aqueous solution

Zegota

Bachman

1984

Nahrung

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The effects of ?-irradiation on the browning reaction in the model system of fructose-phenylalanine solution were investigated. The optical absorption recorded for irradiated and heated solutions of fructose-phenylalanine was different from those of only irradiated or only heated solutions.T o explain the role of carbonyl compounds formed during radiolysis of fructose and phenylalanine investigations of their N-methyl-benzothiazolone hydrazone hydrochloride derivatives were undertaken. It has been found that as a result of irradiation of the model system mainly aliphatic aldehydes are formed, besides a small amount of cyclic aldehydes. However during heating the contribution of aliphatic and cyclic products is similar.

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Radiolysis of Various Classes of Carbohydrates

Cited by 3 publications

References 111 publications

Gamma‐Irradiated Dry Bean (Phaseolus vulgaris) Starch: Physicochemical Properties

Gamma‐Irradiated Dry Bean (Phaseolus vulgaris) Starch: Physicochemical Properties

Peroxide macro‐initiators for improving biodegradability of polymers

Nonenzymatic browning induced by gamma ⁶⁰Co irradiation in model system Part 3. Spectrophotometric investigation of the carbonyl products in the system fructose/phenylalanine in aqueous solution

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Radiolysis of Various Classes of Carbohydrates

Cited by 3 publications

References 111 publications

Gamma‐Irradiated Dry Bean (Phaseolus vulgaris) Starch: Physicochemical Properties

Gamma‐Irradiated Dry Bean (Phaseolus vulgaris) Starch: Physicochemical Properties

Peroxide macro‐initiators for improving biodegradability of polymers

Nonenzymatic browning induced by gamma 60Co irradiation in model system Part 3. Spectrophotometric investigation of the carbonyl products in the system fructose/phenylalanine in aqueous solution

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Nonenzymatic browning induced by gamma ⁶⁰Co irradiation in model system Part 3. Spectrophotometric investigation of the carbonyl products in the system fructose/phenylalanine in aqueous solution