scholarly journals Comprehensive Comparative Study of the Malting Qualities of Winter Hull-Less and Hulled Barley (2016–2019)

Fermentation ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 8
Author(s):  
Kristina Habschied ◽  
Alojzije Lalić ◽  
Vinko Krstanović ◽  
Krešimir Dvojković ◽  
Ivan Abičić ◽  
...  
Keyword(s):  
Comparative Study ◽  
Water Absorption ◽  
Quality Indicators ◽  
Soluble Protein ◽  
Standard Procedure ◽  
Kernel Weight ◽  
Barley Malt ◽  
Naked Barley ◽  
Weight Protein ◽  
Hulled Barley

This paper aimed to compare the quality indicators of hull-less (naked) barley malt with malt obtained from hulled barley, according to the recommended values for standard pale malt. Five domestic hull-less barley varieties (Osvit, Mandatar, GZ-184, Osk.8.26/1–14 and Osk.6.24/4–12) and five hulled (Barun, OsLukas, Vanessa, Casanova, and Maestro) barley varieties were malted according to the standard procedure. The results of starting barley quality indicators (hectolitre weight, protein, starch, 1000 kernel weight, first class grain) and of finished malts (malt moisture, extract, extract difference, friability, wort viscosity, soluble protein, Kolbach index, wort color, and wort pH) were then compared. The results indicate that the main problem of hull-less barley is the resistance to deeper modification of grain. This is expressed as lower water absorption during steeping, and lower friability. The intensification of the process of malting could be boosted with the extension of steeping time and decreased temperatures during germination. This should result with higher friability but other indicators of malt quality should also show better values.

RELATIONSHIP BETWEEN SOME DURUM WHEAT PHYSICAL CHARACTERISTICS AND SEMOLINA MILLING PROPERTIES

1980 ◽  
Vol 60 (1) ◽  
pp. 49-53 ◽  
Author(s):  
R. R. MATSUO ◽  
J. E. DEXTER
Keyword(s):  
Durum Wheat ◽  
Protein Content ◽  
Kernel Weight ◽  
Test Weight ◽  
Yellow Pigment Content ◽  
Weight Protein ◽  
Kernel Content ◽  
Milling Yield ◽  
Milling Properties ◽  
The Relationship

A recently developed modified milling flow for a three-stand Allis-Chalmers laboratory mill that gives a semolina yield and semolina granulation similar to that of Canadian commercial mills was used to study the relationship between durum wheat test weight, 1000-kernel weight, protein content and semolina milling yield for a series of 174 durum wheat samples. All correlations except the correlation between protein content and 1000-kernel weight were significant. Maximum milling yield was obtained for samples possessing high test weight and high 1000-kernel weight. Increased protein content resulted in a tendency to lower milling yield. For a series of hand-picked samples it was found that as starchy kernel content increased, milling yield was not affected but the proportion of flour increased. Protein content and yellow pigment content decreased with increased starchy kernel content.

Properties of Dan Kwian, Sukhothai and Ratchaburi Pottery Clays Fired at 700 and 900 °C

2014 ◽  
Vol 608 ◽  
pp. 47-61
Author(s):  
Nonglak Meethong ◽  
Wanwisa Pattanasiriwisawa ◽  
Weenawan Somphon ◽  
Waraporn Tanthanuch ◽  
Sutham Srilomsak
Keyword(s):  
Specific Gravity ◽  
Comparative Study ◽  
Water Absorption ◽  
Bulk Density ◽  
Firing Temperature ◽  
Reflectance Spectra ◽  
Modulus Of Rupture ◽  
Regression Equations ◽  
Statistical Software

Dan Kwian, Sukhothai and Ratchaburi pottery clays are economically important pottery clays. They are well known in the Thai ceramic society for making Dan Kwian pottery, Sawankhalok pottery and Dragon jars, respectively. There have been several studies of these pottery clays. However, few of them used statistics to analyze their results. This work is a comparative study of the compositions and properties of these three pottery clays using statistical software to analyze the results. Results show that the major components of these pottery clays are SiO2 and Al2O3. The Modulus of Rupture (MOR) of each pottery clay fired at 700°C are not significantly different. Sukhothai pottery clay fired at 900°C has a higher MOR and bulk density while its porosity, water absorption and apparent specific gravity are less than those of the Dan Kwian and Ratchaburi pottery clays fired at the same temperature. Additionally, the current study developed regression equations for estimating the properties of all pottery clays under study. Finally, it was found that the L*, a*, b* and reflectance spectra of all pottery clays increased when firing temperature was increased from 700 to 900°C.

A Comparative Study of Granular Agglomeration between 3D Printed Hydroxyapatite and Commercial Bone Graft Granules

2019 ◽  
Vol 798 ◽  
pp. 83-87
Author(s):  
Faungchat Thammarakcharoen ◽  
Ariya Yampakdee ◽  
Bovornwut Buranawat ◽  
Jintamai Suwanprateeb
Keyword(s):  
Phase Composition ◽  
Comparative Study ◽  
Bone Graft ◽  
Water Absorption ◽  
Tricalcium Phosphate ◽  
Water Film ◽  
Xrd Analysis ◽  
High Porosity ◽  
Capillary Action ◽  
3D Printed

Granule characteristics and the agglomeration ability of 3D printed hydroxyapatite granules (3DP HA) when contacting water were compared to those of commercial bone graft granules based on hydroxyapatite/β-tricalcium phosphate/collagen mixture (Sunmax). Microstructure, phase composition, water absorption and granular agglomeration of the granules were characterized. SEM showed that the granule sizes of Sunmax were in the range of 0.8-1.5 mm whereas that of 3DP HA was relatively more uniform at about 1 mm. 3DP HA granules comprised the weaving of numerous minute crystals containing large pores and having high porosity while Sunmax granules were crushed granules and having low porosity. XRD analysis confirmed that Sunmax granules were biphasic hydroxyapatite and β-tricalcium phosphate while 3DP HA granules were monophasic hydroxyapatite. Sunmax granules exhibited greater agglomeration volume than that of 3DP HA granules. However, the water absorption of 3DP HA granules was greater than that of Sunmax granules. The greater agglomeration ability of Sunmax granules was likely due to the collagen constituent of the granules which could act as adhesive to bind granules together in addition to water capillary action. In contrast, 3DP HA granules formed the agglomeration by the water film due to the capillary action only so the efficiency was lower although the water absorption was greater.

A comparative study of sodium dodecyl sulfate and freezing/thawing treatment on wheat starch: The role of water absorption

2016 ◽  
Vol 143 ◽  
pp. 149-154 ◽  
Author(s):  
Han Tao ◽  
Pei Wang ◽  
Bao Zhang ◽  
Fengfeng Wu ◽  
Zhengyu Jin ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Comparative Study ◽  
Water Absorption ◽  
Sodium Dodecyl ◽  
Wheat Starch ◽  
Dodecyl Sulfate

Comparative Study of the Chemical Degradation Effects on Polymer Concrete with Limestone Aggregates

2012 ◽  
Vol 730-732 ◽  
pp. 421-426
Author(s):  
Carmen Galán-Marín ◽  
Carlos Rivera-Gómez
Keyword(s):  
Comparative Study ◽  
Water Absorption ◽  
Optical Microscopy ◽  
Visual Observation ◽  
Chemical Degradation ◽  
Natural Stone ◽  
Polymer Concrete ◽  
Polymer Mortar ◽  
Industrial Environments

The objective of this paper is to investigate the influence of chemical degradation effects on polyester polymer mortar (PM). For this purpose, different dosages of siliceous and limestone PMs and natural stone specimens were exposed to representative degradation agents. Since the motivation for the research was to determine the durability of polymer mortar, it was considered important to simulate the types of aggressive environments that could conceivably be brought into contact with the material in domestic and industrial environments. In this paper, the possible variation of the surface aspect, water absorption and mass of the tiles after being immersed the specimens in different solutions, was measured and considered by visual observation and optical microscopy. As a conclusion PMs stability is strongly affected by the adhesion between matrix and aggregates at interface, and it is also dependent of the nature and packing level of aggregates.

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