Effect of moisture, protein, starch, soluble sugar contents and microstructure on mechanical properties of maize kernels

Qiao, Mengmeng; Xia, Guoyi; Cui, Tao; Yang, Xu; Gao, Xiaowei; Su, Yuan; Li, Yibo; Fan, Haojun

doi:10.1016/j.foodchem.2022.132147

Cited by 19 publications

(34 citation statements)

References 19 publications

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“…The density of consolidated material increases with increasing moisture due to the higher grain deformation [11,12]. The physical and mechanical properties of maize grain have been studied by many researchers [13][14][15][16]. Often, low molecular weight compounds initially predominate in storage but may eventually give way to a larger number of higher molecular weight compounds.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Consolidation Level on Organic Volatile Compound Emissions from Maize during Storage

et al. 2023

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The aim of this study was to determine the emission of organic volatile compounds from maize grain as a function of granularity and packing density of bulk material in conditions imitating processes occurring in silos. The study was carried out with the use of a gas chromatograph and an electronic nose, which was designed and constructed at the Institute of Agrophysics of PAS and has a matrix of eight MOS (metal oxide semiconductor) sensors. A 20-L volume of maize grain was consolidated in the INSTRON testing machine with pressures of 40 and 80 kPa. The control samples were not compacted, and the maize bed had bulk density. The analyses were carried out at a moisture content of 14% and 17% (w.b.—wet basis). The measurement system facilitated quantitative and qualitative analyses of volatile organic compounds and the intensity of their emission during 30-day storage. The study determined the profile of volatile compounds as a function of storage time and the grain bed consolidation level. The research results indicated the degree of grain degradation induced by the storage time. The highest emission of volatile compounds was recorded on the first four days, which indicated a dynamic nature of maize quality degradation. This was confirmed by the measurements performed with electrochemical sensors. In turn, the intensity of the volatile compound emission decreased in the next stage of the experiments, which showed a decline in the quality degradation dynamics. The sensor responses to the emission intensity decreased significantly at this stage. The electronic nose data on the emission of VOCs (volatile organic compounds) as well as grain moisture and bulk volume can be helpful for the determination of the quality of stored material and its suitability for consumption.

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Section: Introductionmentioning

confidence: 99%

Effect of the Consolidation Level on Organic Volatile Compound Emissions from Maize during Storage

et al. 2023

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“…The explanation of the relationship between factor and observation is important, which expresses the degree of how much the factors influence the extraction process. 59 In the ethanol extraction process, the importance can be listed as: soild–liquid ratio > number of extraction cycles > extraction time > ethanol concentration. In the water extraction process, this average grey relation grade can be listed in the order of: number of extraction cycles > extraction time > soild–liquid ratio.…”

Section: Resultsmentioning

confidence: 99%

Machine learning-assisted data-driven optimization and understanding of the multiple stage process for extraction of polysaccharides and secondary metabolites from natural products

Yao

Ren

et al. 2023

Green Chem.

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“…Trough the study of the dynamic viscoelasticity of grain, the dynamic storage modulus, loss modulus, and loss tangent can be obtained. Te experimental results of stress relaxation and frequency scanning of diferent varieties of maize showed that the varieties had no signifcant efect on the viscoelasticity of maize kernels [41]. Te moisture content afects the stress relaxation behavior of maize kernels to a certain extent.…”

Section: Dynamic Viscoelasticitymentioning

confidence: 94%

“…A large number of studies have shown a positive correlation between wheat hardness and protein content. Te higher the protein content, the harder the wheat grain [41,86]. Te degree of vitreous afects the hardness of wheat grains.…”

Section: Grain Endospermmentioning

confidence: 99%

Determination Methods and Influencing Factors of Grain Mechanical Properties

Gao,

Tian,

Xue

et al. 2024

Journal of Food Quality

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Grain is extremely vulnerable to external loads during production and processing, resulting in the deterioration of grain quality. Deteriorated grain not only affects the economic value of grain but also affects the safety of storage. This has a very important relationship with the biomechanical properties of grains. It is of great significance to explore the mechanical properties of grain under different conditions and analyze the relationship between its physical and chemical properties and mechanical properties for improving its processing and eating quality. In this paper, the research methods of the mechanical properties of grains are reviewed. Various factors influencing the mechanical properties of cereals were analyzed. The relationship between the internal organizational structure of grain and its mechanical properties was discussed. This paper puts forward the shortcomings in the current research on the mechanical properties of grains and puts forward the prospect and analysis of its importance in future development in order to provide a reference for reducing crushing in the grain processing process.

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Effect of moisture, protein, starch, soluble sugar contents and microstructure on mechanical properties of maize kernels

Cited by 19 publications

References 19 publications

Effect of the Consolidation Level on Organic Volatile Compound Emissions from Maize during Storage

Effect of the Consolidation Level on Organic Volatile Compound Emissions from Maize during Storage

Machine learning-assisted data-driven optimization and understanding of the multiple stage process for extraction of polysaccharides and secondary metabolites from natural products

Determination Methods and Influencing Factors of Grain Mechanical Properties

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