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Dominici F, Puglia D, Luzi F, Governatori C, Tosti G, Benincasa P. The Bran and Grain Grinding Level Affect the Tensile Characteristics of Bioplastics Derived from Wholegrain Wheat Flours. Polymers (Basel) 2023; 15:4381. [PMID: 38006105 PMCID: PMC10674300 DOI: 10.3390/polym15224381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
The mechanical performance of thermoplastic bulk samples obtained by plasticizing wheat flours differing in grain hardness, alveographic parameters, absence or presence of bran, and grinding level was assessed. Grains of four bread wheat (Triticum aestivum L.) cultivars (Altamira, Aubusson, Blasco, and Bologna) were milled with the aim of producing single-cultivar refined flour (R), or wholegrain flour with fine (F) or coarse (C) grinding. The flours were plasticized, injection molded and tested for tensile properties. The results confirmed that the presence of bran increased the strength (σ) and reduced the elongation at break (ε) of thermoplastics obtained from the flours of each cultivar. The grinding level had an effect, since σ was higher and ε was lower in F than in C samples. SEM analysis of samples revealed that the bran and its texture affected the exposure of starch granules to plasticizer. Composting experiments also revealed that the formulations are able to disintegrate within 21 days with a mass loss rate higher in plastics from F than C flours, while germination tests carried out with cress seeds indicated that it takes two months before the compost loses its phytotoxic effects. Overall, the refining and bran particle size of wheat flours, besides their gluten composition and baking properties, represent novel choice factors to be considered when tailoring the manufacturing of plastic materials for selected requirements and uses.
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Affiliation(s)
- Franco Dominici
- Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, 05100 Terni, Italy;
| | - Debora Puglia
- Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, 05100 Terni, Italy;
| | - Francesca Luzi
- Department of Science and Engineering of Matter, Environment and Urban Planning (SIMAU), 60131 Ancona, Italy;
| | - Catia Governatori
- AMAP, Agenzia Marche Agricoltura Pesca, Via Giulio Latini, 64, 60035 Jesi, Italy;
| | - Giacomo Tosti
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Borgo XX Giugno, 74, 06124 Perugia, Italy; (G.T.); (P.B.)
| | - Paolo Benincasa
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Borgo XX Giugno, 74, 06124 Perugia, Italy; (G.T.); (P.B.)
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2
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Chen Z, Mense AL, Brewer LR, Shi YC. Wheat bran layers: composition, structure, fractionation, and potential uses in foods. Crit Rev Food Sci Nutr 2023:1-24. [PMID: 36728922 DOI: 10.1080/10408398.2023.2171962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Wheat bran, the main by-product of dry milling of wheat, is currently mainly used in the animal feed industry, but has attracted attention as a food ingredient owing to its high dietary fiber and phytochemical contents, providing excellent physiological effects. The bran layers (aleurone layer, outer pericarp and intermediate layer) contain different compositions, structures, and nutrients, and have different properties. Each layer, when separated and isolated, potentially could find more extensive applications in foods. This triggered interest in isolating the bran layers using milling and wet- or dry-fractionation techniques based on their chemical or physical properties. The recent progress has allowed the production of commercial products from wheat bran layers, particularly aleurone-rich products, enhancing the value of wheat bran layers and their applications in food. The present review highlights the recent advances in studying the chemical composition including distribution of chemical components, physical structure, biopolymer matrix, and physicochemical properties of each wheat bran layer. Technologies to fractionate wheat bran layers and utilization of different bran layers in foods are discussed and reviewed, providing new strategies for improving the value of wheat bran and utilization of wheat bran in foods.
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Affiliation(s)
- Zhongwei Chen
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Andrew L Mense
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
- Wheat Marketing Center, Portland, OR, USA
| | - Lauren R Brewer
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
| | - Yong-Cheng Shi
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
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3
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Kruszelnicka W, Opielak M, Ambrose K, Pukalskas S, Tomporowski A, Walichnowska P. Energy-Dependent Particle Size Distribution Models for Multi-Disc Mill. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15176067. [PMID: 36079445 PMCID: PMC9457795 DOI: 10.3390/ma15176067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 06/12/2023]
Abstract
Comminution is important in the processing of biological materials, such as cereal grains, wood biomass, and food waste. The most popular biomaterial grinders are hammer and roller mills. However, the grinders with great potential in the processing of biomass are mills that use cutting, e.g., disc mills. When it comes to single-disc and multi-disc grinders, there are not many studies describing the relationships between energy, motion, material, and processing or describing the effect of grinding, meaning the size distribution of a product. The relationship between the energy and size reduction ratio of disc-type grinder designs has also not been sufficiently explored. The purpose of this paper was to develop models for the particle size distribution of the ground product in multi-disc mills depending on the variable process parameters, i.e., disc rotational velocity and, consequently, power consumption, and the relationship between the grinding energy and the shape of graining curves, which would help predict the product size reduction ratio for these machines. The experiment was performed using a five-disc mill, assuming the angular velocity of the grinder discs was variable. Power consumption, product particle size, and specific comminution energy were recorded during the tests. The Rosin-Rammler-Sperling-Bennet (RRSB) distribution curves were established for the ground samples, and the relationships between distribution coefficients and the average angular velocity of grinder discs, power consumption, and specific comminution energy were determined. The tests showed that the specific comminution energy increases as the size reduction ratio increases. It was also demonstrated that the RRSB distribution coefficients could be represented by the functions of angular velocities, power consumption, and specific comminution energy. The developed models will be a source of information for numerical modelling of comminution processes.
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Affiliation(s)
- Weronika Kruszelnicka
- Department of Machines and Technical Systems, Faculty of Mechanical Engineering, Bydgoszcz University of Science and Technology, Al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
- Department of Agricultural & Biological Engineering, Purdue University, 225 S. University St., West Lafayette, IN 47907, USA
| | - Marek Opielak
- Department of Sustainable Transport and Propulsion Sources, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland
| | - Kingsly Ambrose
- Department of Agricultural & Biological Engineering, Purdue University, 225 S. University St., West Lafayette, IN 47907, USA
| | - Saugirdas Pukalskas
- Faculty of Transport Engeneering, Vilnius Gediminas Technical University, Saulekio al. 11, LT-10223 Vilnius, Lithuania
| | - Andrzej Tomporowski
- Department of Machines and Technical Systems, Faculty of Mechanical Engineering, Bydgoszcz University of Science and Technology, Al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
| | - Patrycja Walichnowska
- Department of Machines and Technical Systems, Faculty of Mechanical Engineering, Bydgoszcz University of Science and Technology, Al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
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Khalid KH, Ohm J, Simsek S. Influence of bread‐making method, genotype, and growing location on whole‐wheat bread quality in hard red spring wheat. Cereal Chem 2021. [DOI: 10.1002/cche.10509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Jae‐Bom Ohm
- USDA‐ARS Edward T. Schafer Agricultural Research Center Cereal Crops Research Unit Hard Red Spring and Durum Wheat Quality Laboratory North Dakota State University Fargo North Dakota USA
| | - Senay Simsek
- Department of Plant Science North Dakota State University Fargo North Dakota USA
- Department of Food Science Purdue University West Lafayette Indiana USA
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5
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Kruszelnicka W. Study of Selected Physical-Mechanical Properties of Corn Grains Important from the Point of View of Mechanical Processing Systems Designing. MATERIALS 2021; 14:ma14061467. [PMID: 33802748 PMCID: PMC8002458 DOI: 10.3390/ma14061467] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/05/2021] [Accepted: 03/14/2021] [Indexed: 11/16/2022]
Abstract
Mechanical properties of corn grains are of key importance in a design of processing machines whose energy demand depends on these properties. The aim of this study is to determine the selected mechanical properties of corn grains and the rupture energy. The research problem was formulated as questions: (1) How much force and energy is needed to induce a rupture of corn grain maintaining good quality of the product of processing (mixing, grinding transport)? (2) Can empirical distributions of the studied physical-mechanical properties be described by means of probability distributions provided by the literature? (3) Is there a relationship between the corn grain size and the selected mechanical properties, as well as rupture energy? In order to achieve the goals, the selected physical properties (size, volume) of corn grains have been distinguished and a static compression test has been carried out on an Instron 5966 testing machine. The results indicate a significant scatter of the results in terms of size, grain shape, forces, energy, and deformation corresponding to the point of inflection, bioyiled point, and rupture point. It has also been indicated that empirical distributions of the analyzed properties can be described by means of distributions known from the literature, e.g., gamma, Weibull or lognormal distributions. It has been confirmed that mechanical properties such as force, energy, and stress that cause rupture depend on the grain size, more precisely, the grain thickness-there are negative relations between thickness and force, energy and stress in relation to the point of inflection, bioyiled point, and rupture point.
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Affiliation(s)
- Weronika Kruszelnicka
- Department of Machines and Technical Systems, Faculty of Mechanical Engineering, University of Science and Technology in Bydgoszcz, 85-796 Bydgoszcz, Poland
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6
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Tu M, Li Y. Toward the Genetic Basis and Multiple QTLs of Kernel Hardness in Wheat. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1631. [PMID: 33255282 PMCID: PMC7760206 DOI: 10.3390/plants9121631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/03/2022]
Abstract
Kernel hardness is one of the most important single traits of wheat seed. It classifies wheat cultivars, determines milling quality and affects many end-use qualities. Starch granule surfaces, polar lipids, storage protein matrices and Puroindolines potentially form a four-way interaction that controls wheat kernel hardness. As a genetic factor, Puroindoline polymorphism explains over 60% of the variation in kernel hardness. However, genetic factors other than Puroindolines remain to be exploited. Over the past two decades, efforts using population genetics have been increasing, and numerous kernel hardness-associated quantitative trait loci (QTLs) have been identified on almost every chromosome in wheat. Here, we summarize the state of the art for mapping kernel hardness. We emphasize that these steps in progress have benefitted from (1) the standardized methods for measuring kernel hardness, (2) the use of the appropriate germplasm and mapping population, and (3) the improvements in genotyping methods. Recently, abundant genomic resources have become available in wheat and related Triticeae species, including the high-quality reference genomes and advanced genotyping technologies. Finally, we provide perspectives on future research directions that will enhance our understanding of kernel hardness through the identification of multiple QTLs and will address challenges involved in fine-tuning kernel hardness and, consequently, food properties.
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Affiliation(s)
| | - Yin Li
- Waksman Institute of Microbiology, Rutgers, The State University of New Jersey, 190 Frelinghuysen Road, Piscataway, NJ 08854, USA;
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7
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The Integrated Energy Consumption Index for Energy Biomass Grinding Technology Assessment. ENERGIES 2020. [DOI: 10.3390/en13061417] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The assessment of engineering objects in terms of energy consumption is an important part of sustainable development. Many materials, including those from the energy sector, need to undergo earlier processing, e.g., grinding. Grinding processes still demand a significant amount of energy, whereas current energy assessment methods do not take into account important parameters of the process, which makes it difficult to choose their optimal values. The study presents the analysis, testing, and assessment of mechanical engineering systems in terms of the energy consumption involved in the grinding of biomass intended for energy production purposes. A testing methodology was developed to improve the parameters of multi-disc grinding, including the reduction of energy consumption, power input, product quality improvement, and process efficiency. An original model of integrated energy consumption was developed. Tests were carried out on a five-disc grinder for five programs to assess the programmable angular speeds of the grinder discs. Output values, including specific energy demand, fragmentation degree, and integrated energy consumption, were assigned to each testing program. The test results were subjected to statistical analysis. Based on the authors’ own research, it was found that the angular speed of the discs and, consequently, the linear speed of the grinding blades, have a significant influence on the values of the integrated energy consumption of the preliminary process.
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8
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Lullien-Pellerin V. Both genetic and environmental conditions affect wheat grain texture: Consequences for grain fractionation and flour properties. J Cereal Sci 2020. [DOI: 10.1016/j.jcs.2020.102917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Abstract
Strength properties of grains have a significant impact on the energy demand of grinding mills. This paper presents the results of tests of strength and energy needed the for destruction of rice grains. The research aim was to experimentally determine mechanical and processing properties of the rice grains. The research problem was formulated in the form of questions: (1) what force and energy are needed to induce a rupture of rice grain of the Oryza sativa L. of long-grain variety? (2) what is the relationship between grain size and strength parameters and the energy of grinding rice grain of the species Oryza sativa L. long-grain variety? In order to find the answer to the problems posed, a static compression test of rice grains was done. The results indicate that the average forces needed to crush rice grain are 174.99 kg m·s−2, and the average energy is 28.03 mJ. There was no statistically significant relationship between the grain volume calculated based on the volumetric mass density Vρ and the crushing energy, nor between the volume Vρ and other strength properties of rice grains. In the case of Vs, a low negative correlation between strength σmin and a low positive correlation between the power inducing the first crack were found for the grain size related volume. A low negative correlation between the grain thickness a3, stresses σmin and work WFmax was found as well as a low positive correlation between thickness a3 and the force inducing the first crack Fmin.
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10
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A New Model for Environmental Assessment of the Comminution Process in the Chain of Biomass Energy Processing †. ENERGIES 2020. [DOI: 10.3390/en13020330] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acquiring energy contained in biomass requires its prior appropriate preparation. These treatments require some energy inputs, which significantly affect the reduction of the energy and the environmental balance in the entire life cycle of the biomass energy processing chain. In connection with the above, the aim of this work is to develop a methodology for the environmental assessment of biomass grinding in the processing chain for energy purposes. The research problem is formulated as follows: Is it possible to provide an assessment model that takes into account the environmental inputs and benefits of the grinding process of biomass intended for further energy use (for example, combustion)? How do the control variables of the grinding machine affect the environmental process evaluation? In response to these research problems, an original, carbon dioxide emission assessment index of the biomass grinding process was developed. The model was verified by assessing the process of rice and maize grinding on a real object—a five-disc mill—with various speed settings of the grinding disc. It was found that the carbon dioxide emission assessment model developed provides the possibility of comparing grinding processes and identifying the grinding process with a better CO2 emission balance, where its values depend on the control parameters of the mill.
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11
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Nano- and micro-mechanical properties of wheat grain by atomic force microscopy (AFM) and nano-indentation (IIT) and their relationship with the mechanical properties evaluated by uniaxial compression test. J Cereal Sci 2019. [DOI: 10.1016/j.jcs.2019.102830] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Bolaji OT, Awonorin SO, Sanni LO, Shittu TA. Modelling of mechanical properties of five maize varieties at critical processing conditions in the production of fermented slurry-ogi. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2018. [DOI: 10.1080/10942912.2018.1501698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Olusola Timothy Bolaji
- Department of Food Technology, Lagos State polytechnic, Ikorodu, Nigeria
- Department of Food Science and Technology, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
| | - Samuel Olusegun Awonorin
- Department of Food Science and Technology, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
| | - Lateef Oladimeji Sanni
- Department of Food Science and Technology, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
| | - Taofik Akinyemi Shittu
- Department of Food Science and Technology, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
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13
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Mayer-Laigle C, Barakat A, Barron C, Delenne J, Frank X, Mabille F, Rouau X, Sadoudi A, Samson MF, Lullien-Pellerin V. DRY biorefineries: Multiscale modeling studies and innovative processing. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2017.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Heinze K, Kiszonas A, Murray J, Morris C, Lullien-Pellerin V. Puroindoline genes introduced into durum wheat reduce milling energy and change milling behavior similar to soft common wheats. J Cereal Sci 2016. [DOI: 10.1016/j.jcs.2016.08.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Galindez-Najera S, Choomjaihan P, Barron C, Lullien-Pellerin V, Campbell G. A compositional breakage equation for wheat milling. J FOOD ENG 2016. [DOI: 10.1016/j.jfoodeng.2016.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Robin F, Dubois C, Curti D, Schuchmann HP, Palzer S. Effect of wheat bran on the mechanical properties of extruded starchy foams. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.06.041] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Morris CF, Delwiche SR, Bettge AD, Mabille F, Abécassis J, Pitts MJ, Dowell FE, Deroo C, Pearson T. Collaborative Analysis of Wheat Endosperm Compressive Material Properties. Cereal Chem 2011. [DOI: 10.1094/cchem-03-11-0035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Craig F. Morris
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), Western Wheat Quality Laboratory, Washington State University, Pullman, WA 99164-6394. Mention of trademark or proprietary products does not constitute a guarantee or warranty by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable
- Corresponding author. Phone: +1.509.335.4062. Fax: +1.509.335.8573. E-mail:
| | - Stephen R. Delwiche
- USDA-ARS Food Quality Laboratory, Beltsville Agricultural Research Center, Beltsville, MD 20705-2350
| | - Arthur D. Bettge
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), Western Wheat Quality Laboratory, Washington State University, Pullman, WA 99164-6394. Mention of trademark or proprietary products does not constitute a guarantee or warranty by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may also be suitable
| | - Frédéric Mabille
- INRA, UMR 1208 Agropolymers Engineering and Emerging Technologies, INRA-CIRAD-UMII-Supagro, F-34000 Montpellier, France
| | - Joël Abécassis
- INRA, UMR 1208 Agropolymers Engineering and Emerging Technologies, INRA-CIRAD-UMII-Supagro, F-34000 Montpellier, France
| | - Marvin J. Pitts
- Department of Biological Systems Engineering, Washington State University, Pullman, WA 66164-6120
| | - Floyd E. Dowell
- USDA-ARS, Center for Grain and Animal Health Research, Manhattan, KS 66502
| | - Camille Deroo
- On temporary assignment at the Western Wheat Quality Laboratory from the Institute Polytechnique LaSalle Beauvais, France
| | - Tom Pearson
- USDA-ARS, Center for Grain and Animal Health Research, Manhattan, KS 66502
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Martelli MR, Brygo F, Delaporte P, Rouau X, Barron C. Estimation of Wheat Grain Tissue Cohesion via Laser Induced Breakdown Spectroscopy. FOOD BIOPHYS 2011. [DOI: 10.1007/s11483-011-9222-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Du L, Yu P. Relationship of physicochemical characteristics and hydrolyzed hydroxycinnamic acid profile of barley varieties and nutrient availability in ruminants. J Cereal Sci 2011. [DOI: 10.1016/j.jcs.2010.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Dobberstein D, Bunzel M. Separation and detection of cell wall-bound ferulic acid dehydrodimers and dehydrotrimers in cereals and other plant materials by reversed phase high-performance liquid chromatography with ultraviolet detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:8927-35. [PMID: 23654229 DOI: 10.1021/jf101514j] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Ferulate dehydrodimers and the more recently discovered dehydrotrimers play an important role in the cell wall architecture of plant-based foods and forages. High-performance liquid chromatography methods to determine ferulate dimers often lack specificity; methods for trimers did not exist yet. A method for the determination of 11 cell wall-bound ferulate dehydrodimers and -trimers was developed, including the crucial separation of the di/trimers from the often dominating phenolic monomers. Validation parameters for the basic calibration of the dimers and trimers met our acceptance criteria. However, the matrix calibration revealed that lignin-rich matrices lead to problems with precision and accuracy that likely can be addressed by using a more specific detection, that is, mass spectrometric detection, next to improved sample preparation procedures. The method was used to analyze low-lignin fibers from corn, wheat, and rye grains, wild rice, asparagus, and sugar beet. With the exception of wild rice, the 5-5/8-O-4-, 8-O-4/8-O-4-, and 8-8(aryltetralin)/8-O-4-dehydrotrimers were detected in all analyzed samples, however, often in amounts below the limit of quantitation.
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Affiliation(s)
- Diane Dobberstein
- Institute of Biochemistry and Food Chemistry, Department of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
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22
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Martelli MR, Brygo F, Sadoudi A, Delaporte P, Barron C. Laser-induced breakdown spectroscopy and chemometrics: a novel potential method to analyze wheat grains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:7126-7134. [PMID: 20499936 DOI: 10.1021/jf100665u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Laser-induced breakdown spectroscopy (LIBS) has been widely used to evaluate the elemental composition (e.g., minerals or metal accumulation) on vegetal tissues. The main objective of this work was to differentiate wheat outer tissues during the grain ablation using LIBS and univariate/multivariate analysis. A high resolution spectrometer and a Nd:YAG laser (532 nm, 5 ns) was first used in order to easily identify atomic wheat emission lines. Then a pulsed excimer laser ArF (193 nm, 15 ns) and a compact fiber optic spectrometer was used to acquire LIBS spectral data from each pulse. Univariate and multivariate analyses (MW2D, PLS-DA) were carried out to provide more in depth information from the LIBS experiment. The number of pulses needed to ablate wheat tissues was successfully predicted by the supervised pattern recognition procedure. LIBS used in conjunction with multivariate analysis could be an interesting technique for rapid structural analysis of vegetal material.
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Affiliation(s)
- Milena R Martelli
- INRA, UMR 1208 Ingénierie des Agropolymères et Technologies Emergentes, INRA-CIRAD-UMII-Supagro, Montpellier, France
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Hemery YM, Mabille F, Martelli MR, Rouau X. Influence of water content and negative temperatures on the mechanical properties of wheat bran and its constitutive layers. J FOOD ENG 2010. [DOI: 10.1016/j.jfoodeng.2010.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Martelli M, Barron C, Delaporte P, Viennois G, Rouau X, Sadoudi A. Pulsed laser ablation: A new approach to reveal wheat outer layer properties. J Cereal Sci 2009. [DOI: 10.1016/j.jcs.2008.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Anderssen RS, Haraszi R. Characterizing and exploiting the rheology of wheat hardness. Eur Food Res Technol 2009. [DOI: 10.1007/s00217-009-1037-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ceusters J, Londers E, Brijs K, Delcour JA, De Proft MP. Glucuronoarabinoxylan structure in the walls of Aechmea leaf chlorenchyma cells is related to wall strength. PHYTOCHEMISTRY 2008; 69:2307-2311. [PMID: 18632122 DOI: 10.1016/j.phytochem.2008.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Revised: 05/29/2008] [Accepted: 06/03/2008] [Indexed: 05/26/2023]
Abstract
In CAM-plants rising levels of malic acid in the early morning cause elevated turgor pressures in leaf chlorenchyma cells. Under specific conditions this process is lethal for sensitive plants resulting in chlorenchyma cell burst while other species can cope with these high pressures and do not show cell burst under comparable conditions. The non-cellulosic polysaccharide composition of chlorenchyma cell walls was investigated and compared in three cultivars of Aechmea with high sensitivity for chlorenchyma cell burst and three cultivars with low sensitivity. Chlorenchyma layers were cut from the leaf and the non-cellulosic carbohydrate fraction of the cell wall fraction was analyzed by gas-liquid chromatography. Glucuronoarabinoxylans (GAXs) were the major non-cellulosic polysaccharides in Aechmea. The fine structure of these GAXs was strongly related to chlorenchyma wall strength. Chlorenchyma cell walls from cultivars with low sensitivity to cell burst were characterized by an A/X ratio of ca. 0.13 while those from cultivars with high sensitivity showed an A/X ratio of ca. 0.23. Xylose chains from cultivars with high cell burst sensitivity were ca. 40% more substituted with arabinose compared to cultivars with low sensitivity for cell burst. The results indicate a relationship in vivo between glucuronoarabinoxylan fine structure and chlorenchyma cell wall strength in Aechmea. The evidence obtained supports the hypothesis that GAXs with low degrees of substitution cross-link cellulose microfibrils, while GAXs with high degrees of substitution do not. A lower degree of arabinose substitution on the xylose backbone implies stronger cell walls and the possibility of withstanding higher internal turgor pressures without cell bursting.
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Affiliation(s)
- Johan Ceusters
- Faculty of Bioscience Engineering, Department of Biosystems, Division of Crop Biotechnics, Katholieke Universiteit Leuven, Willem De Croylaan 42, B-3001 Heverlee, Belgium.
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