2022
DOI: 10.1016/j.foodhyd.2022.107648
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Effect of pH and protein-polysaccharide ratio on the intermolecular interactions between amaranth proteins and xanthan gum to produce electrostatic hydrogels

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Cited by 45 publications
(15 citation statements)
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“…However, the FTIR spectra of gelatin solution show an increase in the peak at 3300 cm –1 , which can result from low amounts of proteins and protein–polysaccharide interaction compared to hydrogen bonds of solution. A decrease in the intensity of the band in the region of 3000–3500 cm –1 as the formation of strong electrostatic interaction between xanthan gum and glucomannan forming gels was reported before . FTIR spectra of samples with gelatin solution also show an increase in the peak at 1638 cm –1 (amide I; C–O stretching vibrations) and 1547 cm –1 (amide II; C–N stretching vibrations and N–H bending vibration), which can be considered the result of amide A and N–H stretching vibrations in a gelatin solution …”
Section: Resultssupporting
confidence: 68%
“…However, the FTIR spectra of gelatin solution show an increase in the peak at 3300 cm –1 , which can result from low amounts of proteins and protein–polysaccharide interaction compared to hydrogen bonds of solution. A decrease in the intensity of the band in the region of 3000–3500 cm –1 as the formation of strong electrostatic interaction between xanthan gum and glucomannan forming gels was reported before . FTIR spectra of samples with gelatin solution also show an increase in the peak at 1638 cm –1 (amide I; C–O stretching vibrations) and 1547 cm –1 (amide II; C–N stretching vibrations and N–H bending vibration), which can be considered the result of amide A and N–H stretching vibrations in a gelatin solution …”
Section: Resultssupporting
confidence: 68%
“…As shown in Fig. 4b, the addition of XG would decrease the intensity of the transmission peak at around 3285 cm −1 compared with the sample only containing EWPM, which was related to the reduction of hydrogen bonding (Cortez‐Trejo et al ., 2022). The decreased hydrogen bonding might be the result of enhanced electrostatic associations.…”
Section: Resultsmentioning
confidence: 99%
“…In this system, it could be associated with the hydrogen bonding between the carbonyl and NH groups of EWPM, or between the OH groups of polysaccharides (XG and GA). As shown in Fig.4b, the addition of XG would decrease the intensity of the transmission peak at around 3285 cm −1 compared with the sample only containing EWPM, which was related to the reduction of hydrogen bonding(Cortez-Trejo et al, 2022). The decreased hydrogen bonding might be the result of enhanced electrostatic associations.…”
mentioning
confidence: 84%
“…Enzymatic hydrolysis of KGM caused slight changes in the range of 1200–1500 cm −1 related to amine groups and 3400–3450 cm −1 associated with glycosidic and hydroxyl bonds. Prolonged enzymatic hydrolysis was responsible for more pronounced amine and O–H bands, due to the breakdown of glycosidic bonds (Long et al ., 2018; Cortez‐Trejo et al ., 2022; Makshakova & Zuev, 2022). In addition, it can also be found that the prolonged enzymatic time weakened the band intensity at 1723 cm −1 from the acetyl groups, indicating that the molecular structure of KGM changed with hydrolysis treatments.…”
Section: Resultsmentioning
confidence: 99%
“…Enzymatic hydrolysis of KGM caused slight changes in the range of 1200-1500 cm −1 related to amine groups and 3400-3450 cm −1 associated with glycosidic and hydroxyl bonds. Prolonged enzymatic hydrolysis was responsible for more pronounced amine and O-H bands, due to the breakdown of glycosidic bonds(Long et al, 2018;Cortez-Trejo et al, 2022;Makshakova & Zuev, 2022).…”
mentioning
confidence: 99%