Effects of waterlogging at grain formation stage on starch structure and functionality of waxy maize

Yang, Huan; Wen, Zhangrong; Huang, Tianqi; Lu, Wei; Lu, Dalei

doi:10.1016/j.foodchem.2019.05.072

Cited by 17 publications

(20 citation statements)

References 31 publications

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“…By contrast, the correlation between starch granule size and F1/F2 ratio ( r = −0.82, P < 0.01) reveals that most of the large starch granules also have large molecular weight (Table 3). This correlation was contrary to the findings of our previous study at ambient temperature 42 . Another study reported that the F1/F2 ratio is not affected by the starch granule size in normal maize but is low for the small granules in high‐amylose maize 31 .…”

Section: Resultscontrasting

confidence: 99%

“…Meanwhile, the 1045/1022 cm −1 ratio in YN7 was decreased by HD and increased by HW. Our previous study observed that the 1045/1022 cm −1 ratio is increased by waterlogging at ambient temperature 42 . The present work revealed that RC and the 1045/1022 cm −1 ratio are positively correlated with the average starch granule size and negatively correlated with the F1/F2 ratio ( P > 0.05), indicating that both parameters are relatively independent (Table 3).…”

Section: Resultssupporting

confidence: 66%

“…reported that the F1/F2 ratio is reduced by moderate drought but increased by severe drought when the wheat plants suffer from drought during the late growth stage. Our previous study observed that waterlogging at grain‐formation stage increased the F2 proportion by reducing the average starch granule size in these two hybrids under ambient temperature conditions 42 . The increased F1/F2 ratio of YN7 under HW indicates that most of the small starch granules have a large molecular weight 31 .…”

Section: Resultsmentioning

confidence: 86%

“…Our previous study observed that waterlogging at grainformation stage increased the F2 proportion by reducing the average starch granule size in these two hybrids under ambient temperature conditions. 42 The increased F1/F2 ratio of YN7 under HW indicates that most of the small starch granules have a large molecular weight. 31 By contrast, the correlation between starch granule size and F1/F2 ratio (r = −0.82, P < 0.01) reveals that most of the large starch granules also have large molecular weight (Table 3).…”

Section: Molecular Weight Distributionmentioning

confidence: 98%

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Water and heat stresses during grain formation affect the physicochemical properties of waxy maize starch

et al. 2020

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BACKGROUND Maize is frequently subjected to simultaneous water (drought or waterlogging) and heat (HS) stresses during grain formation in southern China. This work examined the effect of high temperature combined with drought (HD) or waterlogging (HW) during grain formation on the starch physicochemical properties of two waxy maize hybrids, namely Suyunnuo5 (SYN5) and Yunuo7 (YN7). RESULTS Heat stress enlarged the starch granule size, and water stresses aggravated this effect. Heat stress reduced the ratio of small molecular weight fractions for both hybrids, and HD aggravated this reduction only in SYN5. Relative crystallinity in SYN5 was increased by stresses but in YN7 it was unaffected by HD, reduced by HS, and increased by HW. Fourier‐transform infrared (FTIR) spectrometry results showed that the 1045/1022 cm−1 ratio in SYN5 was not influenced by HW but was increased by other stresses, and that in YN7 it was increased by all stresses, with the highest value induced by HW. Peak viscosity was decreased, whereas gelatinization temperatures and retrogradation percentage were increased by all of these stresses. These effects were exacerbated by combined heat and water stresses. The maximum decomposition rate was severely increased by HW. CONCLUSION Drought or waterlogging at grain formation stage aggravated the detrimental effects of HS on the starch physicochemical properties of waxy maize. © 2020 Society of Chemical Industry

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Section: Resultscontrasting

confidence: 99%

Section: Resultssupporting

confidence: 66%

Section: Resultsmentioning

confidence: 86%

Section: Molecular Weight Distributionmentioning

confidence: 98%

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Water and heat stresses during grain formation affect the physicochemical properties of waxy maize starch

et al. 2020

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“…In the present study, TV, FV, and SB were positively correlated with average granule size and large granule percentage (Table ). Waxy maize starch with large granule size exhibited high pasting viscosities . This correlation indicated that the contribution of large starch granules to the stability and rigidity of swollen granules resulted in high ultimate viscosity during heating and after cooling …”

Section: Resultsmentioning

confidence: 88%

Effects of Nitrogen Rates on the Physicochemical Properties of Waxy Maize Starch

Wang

Wen

et al. 2019

Starch Stärke

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Appropriate nitrogen fertilization is essential for improving grain yield and starch quality, while reducing N fertilizer costs. The starch physicochemical properties of two waxy maize hybrids, namely, Suyunuo5 (SYN5) and Yunuo7 (YN7), under N rates of 0 (zero N application [N0]), 150 (low N rate [LN]), 225 (moderate N rate [MN]), and 300 (high N rate [HN]) kg ha -1 are elucidated. Grain starch content initially increases, peaks at MN, and decreases as N rate is increased. N fertilization reduces the starch granule size of YN7. The starch granule size of SYN5 increases under MN. SYN5 exhibits high short/long amylopectin chain ratios under LN and MN. The short/long amylopectin chain ratio of YN7 is unaffected by MN but is increases by LN and HN. The swelling power of YN7 is similar among different N levels, whereas that of SYN5 increases under N fertilization. N fertilization changes starch pasting and thermal properties. Starch with large granules exhibit high trough, final, and setback viscosities and gelatinization temperatures. Starch with high long-chain ratios is susceptible to retrogradation. In conclusion, appropriate N application (225 kg ha -1 for SYN5 and 150 kg ha -1 for YN7) favors starch accumulation, and starch has high viscosity and low retrogradation tendency.

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Starch morphological, structural, pasting, and thermal properties of waxy maize under different heat stress durations at grain formation stage

Yang

et al. 2022

Food and Energy Security

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Heat stress (HS) is a major environmental constraint in sustaining global waxy maize production under future climate condition. Starch physicochemical properties under 5‐day (HS5) and 10‐day (HS10) postsilking HS were investigated using two waxy maize hybrids (Suyunuo5 and Yunuo7) as materials. Ambient and high temperatures were 28°C/20℃ and 35°C/27℃, respectively. Starch granules were enlarged and exhibited additional pitting or cellular structures, increased amylopectin chain length, increased relative crystallinity, and increased 1047/1022 cm−1 ratio under HS. This finding indicated the stable and ordered structure of starch granules, especially under HS10. Pasting viscosities of Yunuo7 reduced by HS, and the change was the same under both HS5 and HS10. Peak viscosity of Suyunuo5 was unaffected and breakdown viscosity increased with HS5 although both characteristics decreased with HS10. HS increased gelatinization temperatures and retrogradation percentage. Results showed that HS enlarges starch granules with stable structure, reduces starch viscosities, and increases retrograde tendency, with severe detrimental effect under long HS durations.

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Effects of waterlogging at grain formation stage on starch structure and functionality of waxy maize

Cited by 17 publications

References 31 publications

Water and heat stresses during grain formation affect the physicochemical properties of waxy maize starch

Water and heat stresses during grain formation affect the physicochemical properties of waxy maize starch

Effects of Nitrogen Rates on the Physicochemical Properties of Waxy Maize Starch

Starch morphological, structural, pasting, and thermal properties of waxy maize under different heat stress durations at grain formation stage

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