Cereal proteins: Chemistry and food applications

Shukla, Triveni P.; Bushuk, W.

doi:10.1080/10408397509527185

Cited by 17 publications

(2 citation statements)

References 45 publications

(46 reference statements)

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“…Table 3. Protein content in different cereal grains [114] and calculated specific surface areas (A s ) of the protein alone and with respect to the whole kernel. The dielectric constants of pure (dry) proteins vary considerably depending on protein type.…”

Section: Proteinsmentioning

confidence: 99%

Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications

Jones

Sheng

2022

Sensors

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Moisture content is a critical variable for the harvesting, processing, storing and marketing of cereal grains, oilseeds and legumes. Efficient and accurate determination of grain moisture content even with advanced nondestructive techniques, remains a challenge due to complex water-retaining biological structures and hierarchical composition and geometry of grains that affect measurement interpretation and require specific grain-dependent calibration. We review (1) the primary factors affecting permittivity measurements used in practice for inferring moisture content in grains; (2) develop novel methods for estimating critical parameters for permittivity modeling including packing density, porosity, water binding surface area and water phase permittivity and (3) represent the permittivity of packs of grains using dielectric mixture theory as a function of moisture content applied to high moisture corn (as a model grain). Grain permittivity measurements are affected by their free and bound water contents, chemical composition, temperature, constituent shape, phase configuration and measurement frequency. A large fraction of grain water is bound exhibiting reduced permittivity compared to that of free water. The reduced mixture permittivity and attributed to hydrophilic surfaces in starches, proteins and other high surface area grain constituents. The hierarchal grain structure (i.e., kernel, starch grain, lamella, molecule) and the different constituents influence permittivity measurements due to their layering, geometry (i.e., kernel or starch grain), configuration and water-binding surface area. Dielectric mixture theory offers a physically-based approach for modeling permittivity of agricultural grains and similar granular media.

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Section: Proteinsmentioning

confidence: 99%

Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications

Jones

Sheng

2022

Sensors

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“…Proteins can be classified into various fractions according to their solubility properties and include structural proteins (albumins and globulin proteins) and storage proteins (gliadin and glutenin proteins) (Tatham & Shewry, 2012). Structural proteins (albumins and globulins) have a better amino acid composition (higher content of lysine, arginine and aspartic acid), which is beneficial to nutritional quality (Shukla & Bushuk, 1975). The content and ratio of gliadin and glutenin proteins significantly influence baking quality (Li et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effects of irrigation and nitrogen fertilizer management on wheat grain baking quality based on the SiriusQuality2 crop model

Liu

2023

Irrigation and Drainage

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The baking quality of wheat grain is significantly affected by irrigation and nitrogen fertilizer management. This study aimed to model the impacts of nitrogen and water stress on winter wheat grain protein composition using SiriusQuality2. SiriusQuality2 was calibrated by using sufficient nitrogen and water treatments and used to evaluate 16 treatments in semi‐arid regions. Then, simulated baking quality and yield over a past 51‐year period were used to screen and optimize the selected 203 management practices. The evaluated simulation results suggest that all relative root mean square errors were less than 0.3, and the simulation results were excellent or good. Irrigation and nitrogen fertilization were beneficial to yield and grain protein content (GPC), while grain baking quality had adverse responses to irrigation. The GPC no longer increased, and the baking quality decreased with excess nitrogen fertilization (262.5 kg ha−1). Increasing the irrigation frequency and days after sowing were always conducive to baking quality. The optimal management, with a basal dressing of 315‐kg ha−1 nitrogen fertilization and 180‐mm irrigation depth at the wintering stage and jointing stage, was selected. Optimized management practices could simultaneously meet the multiple requirements of high grain quality and yield.

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Cereals and Cereal Products

Belitz¹,

Grosch²

1999

Food Chemistry

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Cereal proteins: Chemistry and food applications

Cited by 17 publications

References 45 publications

Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications

Dielectric Measurement of Agricultural Grain Moisture—Theory and Applications

Effects of irrigation and nitrogen fertilizer management on wheat grain baking quality based on the SiriusQuality2 crop model

Cereals and Cereal Products

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