Chestnut starch modification with dry heat treatment and addition of xanthan gum: Gelatinization, structural and functional properties

2022 ◽  
Vol 124 ◽  
pp. 107205
Wenmeng Liu ◽  
Yutao Zhang ◽  
Rongrong Wang ◽  
Jinwang Li ◽  
Wentao Pan ◽  
PLoS ONE ◽  
2016 ◽  
Vol 11 (8) ◽  
pp. e0160371 ◽  
Yang Qin ◽  
Chengzhen Liu ◽  
Suisui Jiang ◽  
Jinmiao Cao ◽  
Liu Xiong ◽  

2018 ◽  
Vol 70 (3-4) ◽  
pp. 1700142 ◽  
Jian Su ◽  
Sunee Chotineeranat ◽  
Bhakkhawat Laoka ◽  
Pathama Chatakanonda ◽  
Wirat Vanichsriratana ◽  

2021 ◽  
Vol 11 (24) ◽  
pp. 11881
Ana Batariuc ◽  
Mădălina Ungureanu-Iuga ◽  
Silvia Mironeasa

This study aimed to highlight the effects of grains dry heat treatment, flour particle size and variety on sorghum flour nutritional, functional, and molecular characteristics. The results obtained showed that dry heat treatment led to fat, fiber and water absorption capacity increase, while the moisture, protein, ash, water retention capacity, solubility index, foaming capacity, and FT-IR absorption bands characteristic to phytic acids decreased with temperature applied raised. Particle size reduction determined lower protein, solubility index, and emulsifying activity and higher fat content, oil absorption capacity, swelling power, and foaming capacity. White sorghum flour fractions presented lower protein content, except when they were treated at 140 °C, lower carbohydrates and fibers and higher fat content compared to those made of red sorghum. Moderate significant correlations (p < 0.05) were observed between some of the functional properties and proximate composition of flours. Thus, both dry heat treatment conditions and particle size exerted significant influences of sorghum flour chemical and functional properties. These results showed the importance of particle size and dry heat treatment on sorghum flours functionality, being helpful for further optimizations and choices for bakery products use.

Transfusion ◽  
2008 ◽  
Vol 48 (4) ◽  
pp. 790-790 ◽  
Johannes Blümel ◽  
Albert Stühler ◽  
Herbert Dichtelmüller

2017 ◽  
Vol 112 ◽  
pp. 489-493
K.M. Tabi ◽  
G.F. Ngando Ebongue ◽  
G.N. Ntsomboh ◽  
E. Youmbi

2018 ◽  
Vol 84 (7) ◽  
Lin He ◽  
Zhan Chen ◽  
Shiwei Wang ◽  
Muying Wu ◽  
Peter Setlow ◽  

ABSTRACTDNA damage kills dry-heated spores ofBacillus subtilis, but dry-heat-treatment effects on spore germination and outgrowth have not been studied. This is important, since if dry-heat-killed spores germinate and undergo outgrowth, toxic proteins could be synthesized. Here, Raman spectroscopy and differential interference contrast microscopy were used to study germination and outgrowth of individual dry-heat-treatedB. subtilisandBacillus megateriumspores. The major findings in this work were as follows: (i) spores dry-heat-treated at 140°C for 20 min lost nearly all viability but retained their Ca2+-dipicolinic acid (CaDPA) depot; (ii) in most cases, dry-heat treatment increased the average times and variability of all major germination events inB. subtilisspore germination with nutrient germinants or CaDPA, and in one nutrient germination event withB. megateriumspores; (iii)B. subtilisspore germination with dodecylamine, which activates the spore CaDPA release channel, was unaffected by dry-heat treatment; (iv) these results indicate that dry-heat treatment likely damages spore proteins important in nutrient germinant recognition and cortex peptidoglycan hydrolysis, but not CaDPA release itself; and (v) analysis of single spores incubated on nutrient-rich agar showed that while dry-heat-treated spores that are dead can complete germination, they cannot proceed into outgrowth and thus not to vegetative growth. The results of this study provide new information on the effects of dry heat on bacterial spores and indicate that dry-heat sterilization regimens should produce spores that cannot outgrow and thus cannot synthesize potentially dangerous proteins.IMPORTANCEMuch research has shown that high-temperature dry heat is a promising means for the inactivation of spores on medical devices and spacecraft decontamination. Dry heat is known to killBacillus subtilisspores by DNA damage. However, knowledge about the effects of dry-heat treatment on spore germination and outgrowth is limited, especially at the single spore level. In the current work, Raman spectroscopy and differential interference contrast microscopy were used to analyze CaDPA levels in and kinetics of nutrient- and non-nutrient germination of multiple individual dry-heat-treatedB. subtilisandBacillus megateriumspores that were largely dead. The outgrowth and subsequent cell division of these germinated but dead dry-heat-treated spores were also examined. The knowledge obtained in this study will help understand the effects of dry heat on spores both on Earth and in space, and indicates that dry heat can be safely used for sterilization purposes.

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