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José Augusto Marcondes Agnelli - One of the best experts on this subject based on the ideXlab platform.
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thermoplastic blends of Corn Gluten meal starch cgm starch and Corn Gluten meal polyvinyl alcohol and Corn Gluten meal poly hydroxybutyrate co hydroxyvalerate cgm phb v
Carbohydrate Polymers, 2011Co-Authors: José Manoel Marconcini, Elisângela Corradini, José Augusto Marcondes AgnelliAbstract:Corn Gluten meal/starch (CGM/Starch), Corn Gluten meal/polyvinyl alcohol (CGM/PVAl), and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V) blends were prepared in different proportions. Glycerol was used as plasticizer. The blends were prepared by melting in a Haake torque rheometer, followed by hot compression molding. The morphology of the blends containing CGM showed changes as a function of variations in blend composition. Water absorption at equilibrium did not vary to any significant extent in response to the addition of PVAl or Starch to CGM, and decreased with increasing PHB-V content. Tensile tests showed that the addition of PVAl increased the flexibility of the blends, while the presence of PHB-V enhanced their rigidity, but slight changes in mechanical properties were observed with the addition of Starch to CGM. The dynamic mechanical analysis (DMA) results revealed that all the blends exhibited two different glass transitions, one for each component, indicating that these blends are immiscible in the compositional range of this study.
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Thermoplastic blends of Corn Gluten meal/starch (CGM/Starch) and Corn Gluten meal/polyvinyl alcohol and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V)
Carbohydrate Polymers, 2011Co-Authors: Elisângela Corradini, José Manoel Marconcini, José Augusto Marcondes AgnelliAbstract:Corn Gluten meal/starch (CGM/Starch), Corn Gluten meal/polyvinyl alcohol (CGM/PVAl), and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V) blends were prepared in different proportions. Glycerol was used as plasticizer. The blends were prepared by melting in a Haake torque rheometer, followed by hot compression molding. The morphology of the blends containing CGM showed changes as a function of variations in blend composition. Water absorption at equilibrium did not vary to any significant extent in response to the addition of PVAl or Starch to CGM, and decreased with increasing PHB-V content. Tensile tests showed that the addition of PVAl increased the flexibility of the blends, while the presence of PHB-V enhanced their rigidity, but slight changes in mechanical properties were observed with the addition of Starch to CGM. The dynamic mechanical analysis (DMA) results revealed that all the blends exhibited two different glass transitions, one for each component, indicating that these blends are immiscible in the compositional range of this study.
Elisângela Corradini - One of the best experts on this subject based on the ideXlab platform.
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thermoplastic blends of Corn Gluten meal starch cgm starch and Corn Gluten meal polyvinyl alcohol and Corn Gluten meal poly hydroxybutyrate co hydroxyvalerate cgm phb v
Carbohydrate Polymers, 2011Co-Authors: José Manoel Marconcini, Elisângela Corradini, José Augusto Marcondes AgnelliAbstract:Corn Gluten meal/starch (CGM/Starch), Corn Gluten meal/polyvinyl alcohol (CGM/PVAl), and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V) blends were prepared in different proportions. Glycerol was used as plasticizer. The blends were prepared by melting in a Haake torque rheometer, followed by hot compression molding. The morphology of the blends containing CGM showed changes as a function of variations in blend composition. Water absorption at equilibrium did not vary to any significant extent in response to the addition of PVAl or Starch to CGM, and decreased with increasing PHB-V content. Tensile tests showed that the addition of PVAl increased the flexibility of the blends, while the presence of PHB-V enhanced their rigidity, but slight changes in mechanical properties were observed with the addition of Starch to CGM. The dynamic mechanical analysis (DMA) results revealed that all the blends exhibited two different glass transitions, one for each component, indicating that these blends are immiscible in the compositional range of this study.
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Thermoplastic blends of Corn Gluten meal/starch (CGM/Starch) and Corn Gluten meal/polyvinyl alcohol and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V)
Carbohydrate Polymers, 2011Co-Authors: Elisângela Corradini, José Manoel Marconcini, José Augusto Marcondes AgnelliAbstract:Corn Gluten meal/starch (CGM/Starch), Corn Gluten meal/polyvinyl alcohol (CGM/PVAl), and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V) blends were prepared in different proportions. Glycerol was used as plasticizer. The blends were prepared by melting in a Haake torque rheometer, followed by hot compression molding. The morphology of the blends containing CGM showed changes as a function of variations in blend composition. Water absorption at equilibrium did not vary to any significant extent in response to the addition of PVAl or Starch to CGM, and decreased with increasing PHB-V content. Tensile tests showed that the addition of PVAl increased the flexibility of the blends, while the presence of PHB-V enhanced their rigidity, but slight changes in mechanical properties were observed with the addition of Starch to CGM. The dynamic mechanical analysis (DMA) results revealed that all the blends exhibited two different glass transitions, one for each component, indicating that these blends are immiscible in the compositional range of this study.
José Manoel Marconcini - One of the best experts on this subject based on the ideXlab platform.
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thermoplastic blends of Corn Gluten meal starch cgm starch and Corn Gluten meal polyvinyl alcohol and Corn Gluten meal poly hydroxybutyrate co hydroxyvalerate cgm phb v
Carbohydrate Polymers, 2011Co-Authors: José Manoel Marconcini, Elisângela Corradini, José Augusto Marcondes AgnelliAbstract:Corn Gluten meal/starch (CGM/Starch), Corn Gluten meal/polyvinyl alcohol (CGM/PVAl), and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V) blends were prepared in different proportions. Glycerol was used as plasticizer. The blends were prepared by melting in a Haake torque rheometer, followed by hot compression molding. The morphology of the blends containing CGM showed changes as a function of variations in blend composition. Water absorption at equilibrium did not vary to any significant extent in response to the addition of PVAl or Starch to CGM, and decreased with increasing PHB-V content. Tensile tests showed that the addition of PVAl increased the flexibility of the blends, while the presence of PHB-V enhanced their rigidity, but slight changes in mechanical properties were observed with the addition of Starch to CGM. The dynamic mechanical analysis (DMA) results revealed that all the blends exhibited two different glass transitions, one for each component, indicating that these blends are immiscible in the compositional range of this study.
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Thermoplastic blends of Corn Gluten meal/starch (CGM/Starch) and Corn Gluten meal/polyvinyl alcohol and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V)
Carbohydrate Polymers, 2011Co-Authors: Elisângela Corradini, José Manoel Marconcini, José Augusto Marcondes AgnelliAbstract:Corn Gluten meal/starch (CGM/Starch), Corn Gluten meal/polyvinyl alcohol (CGM/PVAl), and Corn Gluten meal/poly (hydroxybutyrate-co-hydroxyvalerate) (CGM/PHB-V) blends were prepared in different proportions. Glycerol was used as plasticizer. The blends were prepared by melting in a Haake torque rheometer, followed by hot compression molding. The morphology of the blends containing CGM showed changes as a function of variations in blend composition. Water absorption at equilibrium did not vary to any significant extent in response to the addition of PVAl or Starch to CGM, and decreased with increasing PHB-V content. Tensile tests showed that the addition of PVAl increased the flexibility of the blends, while the presence of PHB-V enhanced their rigidity, but slight changes in mechanical properties were observed with the addition of Starch to CGM. The dynamic mechanical analysis (DMA) results revealed that all the blends exhibited two different glass transitions, one for each component, indicating that these blends are immiscible in the compositional range of this study.
Zhao Wen-yan - One of the best experts on this subject based on the ideXlab platform.
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Comprehensive utilization of Corn Gluten meal
Food engineering, 2014Co-Authors: Zhao Wen-yanAbstract:Corn Gluten meal is one of the by-products of the processing of Corn starch. It contains protein,starch,and maize yellow pigment. Zein is a natural preservative and can be extracted by ethanol or ultrasonic methods. Maize yellow pigment can be extracted by organic solvents,enzymes,and ultrasonic extraction. Corn protein was used to produce bioactive peptides by enzymatic hydrolysis. The bioactive peptide has health function.
Nick E. Christians - One of the best experts on this subject based on the ideXlab platform.
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Pendimethalin and Corn Gluten meal combinations to control turf weeds
Crop Science, 1997Co-Authors: D.s. Gardner, Nick E. Christians, B. R. BingamanAbstract:Concerns over ground water contamination and other environmental issues have prompted research to reduce synthetic herbicide use. Corn (Zea mays L.) Gluten meal, a by-product of wet milling, inhibits germination and the establishment of many annual and perennial weed species. Our objective in the field was to investigate crabgrass control (Digitaria spp.) in Kentucky Bluegrass (Poa pratensis L.) turf established on a Nicollet soil (fine-loamy, mixed, mesic Aquic Hapludoll). In the greenhouse, we investigated the control of large crabgrass [Digitaria sanguinalis (L.) Scop.] on the same soil with no turfgrass cover. Experiments were conducted with Corn Gluten meal at 0, 49, 98, and 147 g m -2 combined in a factorial arrangement with pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine] at 0, 29, 59, 88, and 117 mg ai m -2 . The minimum label rate for pendimethalin is 176 mg ai m -2 . Field crabgrass control was improved by application of a sublethal rate of pendimethalin in addition to Corn Gluten meal. As the application rate of Corn Gluten meal increased from 49 to 147 g m -2 , the level of pendimethalin required to provide 75 to 85% control for 15 wk decreased from 88 to 29 mg aim -2 . There was no increase in crabgrass control in plots that received amounts of Corn Gluten meal and pendimethalin exceeding these combined rates.
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herbicidal activity of hydrolyzed Corn Gluten meal on three grass species under controlled environments
Journal of Plant Growth Regulation, 1994Co-Authors: Nick E. Christians, John T GarbuttAbstract:US Patent No. 5,030,268 discloses that Corn Gluten meal, the protein fraction of Corn (Zea mays L.) grain, can be used as a natural preemergence herbicide. However, Corn Gluten meal is insoluble in water, and this characteristic renders it difficult to apply as a herbicide. To seek a watersoluble material with more potent herbicidal activity, the phytotoxicity of various samples derived from Corn Gluten meal and other related crop materials were evaluated by using three different grass species under controlled environments. Greenhouse and growth chamber bioassays showed that the sample of enzymatically hydrolyzed Corn Gluten meal was more herbicidally active than the Corn Gluten itself and was highly water soluble. Gluten hydrolysate prepared with bacterial source proteinase had the greatest inhibitory activity to the root growth of germinating seeds. This water-soluble material derived from Corn Gluten meal had a growth-regulating effect on the root system and can be used as a natural herbicide.
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Isolation and identification of root-inhibiting compounds from Corn Gluten hydrolysate
Journal of Plant Growth Regulation, 1994Co-Authors: Dianna Lan-ying Liu, Nick E. ChristiansAbstract:Interest has centered on the use of plantderived compounds as natural herbicides, and they are considered to represent an environmentally sound approach to weed control. Corn Gluten hydrolysate, found to have a growth-regulating effect on the root system of germinating grass seeds, has been suggested as a natural herbicide. A protocol was developed to extract, isolate, and identify the root-inhibiting compounds from Corn Gluten hydrolysate aqueous solution and a perennial ryegrass (Lolium perenne L.). A Petri dish bioassay was used to test the root-inhibiting activity. Five bioactive dipeptides were isolated by using Sephadex G-15 gel filtration, solid-phase extraction, and C18 reversed-phase high-performance liquid chromatography procedures. The five dipeptides were glutaminyl-glutamine, alaninyl-asparagine, alaninyl-glutamine, glycinyl-alanine, and alaninyl-alanine. Their root-inhibiting activity on perennial ryegrass was demonstrated in Petri dish bioassays.
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THE USE OF Corn Gluten MEAL AS A NATURAL “WEED AND FEED” MATERIAL FOR TURF
Hortscience, 1992Co-Authors: Nick E. ChristiansAbstract:Field and greenhouse studies on the use of a byproduct of the Corn (Zea mays L.) wet-milling process, Corn Gluten meal, have shown that this high-protein fraction of Corn grain contains an organic compound that inhibits root formation of a variety of monocotyledonous and dicotyledonous species. Seeds that germinate in a soil media to which Corn Gluten meal has been added form normal shoots, but no roots. The seedling quickly dies as the media drys. This inhibition of root formation can be timed to prevent the establishment of weeds in turf areas and other plant systems. Corn Gluten meal also contains approximately 10% nitrogen and can be used as a natural fertilizer material. Repeated field trials have shown no detrimental effect of the Corn Gluten meal on mature grass plants. This combination of a natural fertilizer with a natural weed inhibiting compound may result in a `weed and feed' product for those who do not wish to use synthetic fertilizers and pesticides. A patent on the use of Corn Gluten meal as a weed control was issued in 1991.