Environmental conditions affect semolina quality in durum wheat (Triticum turgidum ssp. durum L.) cultivars with different gluten strength and gluten protein composition

2011 ◽  
Vol 91 (14) ◽  
pp. 2664-2673 ◽  
Author(s):  
Simonetta Fois ◽  
Linda Schlichting ◽  
Brian Marchylo ◽  
James Dexter ◽  
Rosella Motzo ◽  
...  
Foods ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 409 ◽  
Author(s):  
Geisslitz ◽  
Longin ◽  
Scherf ◽  
Koehler

The spectrophotometric Bradford assay was adapted for the analysis of gluten protein contents (gliadins and glutenins) of spelt, durum wheat, emmer and einkorn. The assay was applied to a set of 300 samples, including 15 cultivars each of common wheat, spelt, durum wheat, emmer and einkorn cultivated at four locations in Germany in the same year. The total protein content was equally influenced by location and wheat species, however, gliadin, glutenin and gluten contents were influenced more strongly by wheat species than location. Einkorn, emmer and spelt had higher protein and gluten contents than common wheat at all four locations. However, common wheat had higher glutenin contents than einkorn, emmer and spelt resulting in increasing ratios of gliadins to glutenins from common wheat (< 3.8) to spelt, emmer and einkorn (up to 12.1). With the knowledge that glutenin contents are suitable predictors for high baking volume, cultivars of einkorn, emmer and spelt with good predicted baking performance were identified. Finally, spelt, emmer and einkorn were found to have a higher nitrogen partial factor productivity than common and durum wheat making them promising crops for a more sustainable agriculture.


2010 ◽  
Vol 90 (1) ◽  
pp. 1-11 ◽  
Author(s):  
F R Clarke ◽  
J M Clarke ◽  
N A Ames ◽  
R E Knox ◽  
R J Ross

Gluten strength is an important end-use quality factor in durum wheat [Triticum turgidum L. ssp. durum (Desf.) Husn.], affecting pasta manufacture and cooking quality. The objective of this research was to determine the inheritance and heritability of gluten index in comparison with the widely used SDS-sedimentation (sodium dodecyl sulphate) technique for selection for gluten strength. Seven durum populations were grown in replicated, multi-location, multi-year field trials in Saskatchewan, Canada, during the period 1995 to 2002. Gluten index and SDS-sedimentation volume were determined on all plots after harvest. Both traits were affected by genotype, and to a lesser extent by year or location. Genotype environmental interactions were generally minor. The majority of genotypes in each population had similar relative ranking for gluten index and SDS-sedimentation volume in each environment. Both traits were highly heritable, ranging from 0.80 to 0.97, and both were complexly inherited with estimates of effective factors ranging from 3 to 21. Gluten index and SDS-sedimentation volume were highly correlated, indicating that they are measuring similar aspects of gluten strength. SDS-sedimentation volume was positively associated with protein concentration (r2 = 0.52), but gluten index was not. Therefore, gluten index would be more desirable than SDS-sedimentation volume for use in selection where there are within-trial protein concentration trends.Key words: Gluten strength, SDS-sedimentation, gluten index, heritability, inheritance


1981 ◽  
Vol 61 (1) ◽  
pp. 149-151 ◽  
Author(s):  
D. LEISLE ◽  
F. G. KOSMOLAK ◽  
M. KOVACS

Lines of durum wheat (Triticum turgidum L.) were studied for glume color, gluten strength as determined by micromixograph and sodium-dodecyl-sulphate (SDS) sedimentation methods, and banding of gliadin proteins by polyacrylamide gel electrophoresis. The results indicated a linkage of factors controlling glume color and gliadin proteins. There also appeared to be an association of these two characteristics with gluten strength.


2004 ◽  
Vol 84 (4) ◽  
pp. 1001-1013
Author(s):  
J. E. Dexter ◽  
M. A. Doust ◽  
C. N. Raciti ◽  
G. M. Lombardo ◽  
F. R. Clarke ◽  
...  

Since the 1980s, there have been general trends in the durum wheat milling industry to higher semolina extraction rate, and in the pasta processing industry to the use of higher drying temperatures. During this time, specification of gluten strength by gluten index, mixograph mixing properties and alveograph parameters has also become widespread. These trends prompted this study of the appropriateness of protocols for quality testing of Canadian durum wheat breeding lines. Four cultivars with intrinsic differences in yellow pigment levels and gluten strength were grown in field plots in Swift Current, Saskatchewan for three consecutive years. A laboratory-scale milling procedure was modified to produce semolina at extraction rates from about 65% to about 80%. Milling to extraction rates above 65%, the extraction rate used routinely in quality testing of Canadian durum wheat breeding lines, had a major impact on semolina ash content and colour, but did not offer any advantage in ranking cultivars for either semolina yield or semolina refinement. Gluten strength, as measured by gluten index, was independent of semolina extraction rate. Dough strength, as measured by mixograph properties and alveograph properties, showed a tendency to weakening at high extraction, particularly for strong cultivars. Semolina was processed into spaghetti using low-temperature (LT), high-temperature (HT) and ultra-high-temperature (UHT) drying cycles. The firmness of cooked spaghetti was predominantly influenced by protein content. As a result, cultivars generally ranked in spaghetti firmness according to protein content. Regardless of drying cycle or cultivar, spaghetti firmness increased as drying temperature increased. Spaghetti dried at LT was less yellow than spaghetti dried at HT or UHT, probably due to thermal inactivation of the bleaching enzyme lipoxygenase at HT and UHT. Regardless of drying cycle, spaghetti became duller, more red and less yellow as extraction rate increased. For each spaghetti trait, cultivar ranking remained relatively constant regardless of extraction rate or drying temperature. On the basis of these results, there appears to be no advantage to increasing semolina extraction rate beyond 65% for evaluation of durum wheat milling performance, gluten strength or pasta properties. In addition, it appears that one drying cycle is adequate to reliably evaluate durum wheat lines for spaghetti colour and firmness. Key words: Durum wheat (Triticum turgidum L. var durum), milling, semolina, pasta, quality screening, gluten strength, colour, texture


2013 ◽  
Vol 57 (1) ◽  
pp. 21-29 ◽  
Author(s):  
Ajay Kumar ◽  
Elias M. Elias ◽  
Farhad Ghavami ◽  
Xin Xu ◽  
Shalu Jain ◽  
...  

2005 ◽  
Vol 85 (4) ◽  
pp. 901-904 ◽  
Author(s):  
J. M. Clarke ◽  
T. N. McCaig ◽  
R. M. DePauw ◽  
R. E. Knox ◽  
N. P. Ames ◽  
...  

Commander durum wheat is adapted to the durum production area of the Canadian prairies. It combines high yield, high grain pigment concentration, and very strong gluten properties. Commander is a semidwarf with strong straw, and has similar maturity and disease resistance to other registered durum cultivars. Key words: Triticum turgidum L. var durum, durum wheat, cultivar description, yield, gluten strength, disease resistance


Sign in / Sign up

Export Citation Format

Share Document