COMPOSSITIONAL, NUTRITIONAL and FUNCTIONAL EVALUATION of INTERMEDIATE WHEATGRASS (THINOPYRUM INTERMEDIUM)

Becker, Robert R.; Wagoner, P.; Hanners, G. D.; Saunders, R. M.

doi:10.1111/j.1745-4549.1991.tb00154.x

Cited by 36 publications

(59 citation statements)

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“…Chemical composition of HWF and IWG is shown in Table I. Despite having more protein, it has been reported that perennial grasses are characterized by low gluten content (Becker et al 1991). IWG flour exhibited a significantly (P £ 0.05) lower total starch content compared with both refined and whole wheat flour (46.7, 73.9, and 72%, respectively) and a higher amount of protein (20, 15, and 13.2% for IWG, HWF, and whole wheat flour, respectively).…”

Section: Resultsmentioning

confidence: 99%

“…Although IWG seed protein is nutritionally poor in lysine, as is wheat, it has a higher amount of all other essential amino acids than wheat (Becker et al 1991). Although IWG seed protein is nutritionally poor in lysine, as is wheat, it has a higher amount of all other essential amino acids than wheat (Becker et al 1991).…”

mentioning

confidence: 97%

“…It has been reported that no gluten aggregation was found in IWG (Becker et al 1991), indicating that IWG flour is not suitable for preparing glutenbased foods such as bread and pasta. Nevertheless, as for improvement of IWG potential for food production, efforts are tied to the bottleneck of the functional properties of IWG seed grain that are critical for the functionality of foods.…”

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confidence: 99%

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Characteristics of Perennial Wheatgrass (Thinopyrum intermedium) and Refined Wheat Flour Blends: Impact on Rheological Properties

et al. 2015

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Cereal Chem. 92(5):434-440Intermediate wheatgrass (IWG) (Thinopyrum intermedium) is a perennial grass with desirable agronomic traits and positive effects on the environment. It has high fiber and protein contents, which increase the interest in using IWG for human consumption. In this study, IWG flour was blended with refined wheat at four IWG-to-wheat ratios (0:100, 50:50, 75:25, and 100:0). Samples were analyzed for proximate composition, microstructure features, pasting properties (Micro Visco-Amylo-Graph device), protein solubility, and total and accessible thiols. Gluten aggregation properties (GlutoPeak tester) and mixing profile (Farinograph-AT device) were also evaluated. IWG flour enrichment increased the pasting temperature and decreased the peak viscosity of blended flours.

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Section: Resultsmentioning

confidence: 99%

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confidence: 97%

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confidence: 99%

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Characteristics of Perennial Wheatgrass (Thinopyrum intermedium) and Refined Wheat Flour Blends: Impact on Rheological Properties

et al. 2015

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“…Wagoner (1990a) described in detail the characteristics that make intermediate wheatgrass a good candidate for domestication as a perennial grain, while noting shortcomings that must be addressed. Becker et al (1991) concluded that its grain has protein quality "superior to the cereal grains now commonly grown", with no significant amounts of antinutrients.…”

Section: Intermediate Wheatgrassmentioning

confidence: 99%

Breeding Perennial Grain Crops

Cox

Bender

Picone

et al. 2002

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161

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Abstract:One-third of the planet's arable land has been lost to soil erosion in recent decades, and the pace of this degradation will increase as the limits of our food-production capacity are stretched. The persistent problem of worldwide soil erosion has rekindled interest in perennial grain crops. All of our current grain crops are annuals; therefore, developing an array of new perennial grains -grasses, legumes, and others -will require a long-term commitment. Fortunately, many perennial species can be hybridized with related annual crops, allowing us to incorporate genes of domestication much more quickly than did our ancestors who first selected the genes. Some grain crops -including rye, rice, and sorghum -can be hybridized with close perennial relatives to establish new gene pools. Others, such as wheat, oat, maize, soybean, and sunflower, must be hybridized with more distantly related perennial species and genera. Finally, some perennial species with relatively high grain yields -intermediate wheatgrass, wildrye, lymegrass, eastern gamagrass, Indian ricegrass, Illinois bundleflower, Maximilian sunflower, and probably others -are candidates for direct domestication without interspecific hybridization. To ensure diversity in the field and foster further genetic improvement, breeders will need to develop deep gene pools for each crop. Discussions of breeding strategies for perennial grains have concentrated on allocation of photosynthetic resources between seeds and vegetative structures. But perennials will likely be grown in more diverse agro-ecosystems and require arrays of traits very different from those usually addressed by breeders of annuals. The only way to address concerns about the feasibility of perennial grains is to carry out breeding programs with adequate resources on a sufficient time scale. A massive program for breeding perennial grains could be funded by diversion of a relatively small fraction of the world's agricultural research budget.

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“…Therefore, properties of intermediate wheatgrass grain are expected to be somewhat akin to wheat, but substantial differences are also expected. Efforts to study the chemical properties of intermediate wheatgrass flour in various applications have been completed, and these results are expected to help direct future product development and selection programs aimed at improving grain quality parameters [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Development and Evolution of an Intermediate Wheatgrass Domestication Program

et al. 2018

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Ecological intensification of agriculture is a proposed strategy to enhance the production of food while expanding ecosystem services and reducing inputs. Perennial plants that are directly harvested for human food are a novel means of ecological intensification, by potentially providing unprecedented levels of ecological services, such as increased soil carbon and reduced nutrient leaching. However, existing herbaceous perennial plants produce low yields of harvestable seed. Therefore, we initiated a domestication program to improve the grain yield of the perennial intermediate wheatgrass (Thinopyrum intermedium [Host] Barkworth & D.R. Dewey). The breeding program has adapted to changing resources and to results from previous generations, with methods becoming more elaborate as the program has matured over six breeding cycles. Average predicted gains from selection accumulated over five cycles were 143, 181 and 60% respectively, for seed yield per head, percent naked seed and mass per seed. We did not detect negative correlations that would indicate simultaneously achieving increased grain yield and sustained perenniality would be particularly difficult. Heritability estimates based on genetic markers were the same or higher than those calculated from a pedigree, indicating that markers have potential to expedite breeding efforts.

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COMPOSSITIONAL, NUTRITIONAL and FUNCTIONAL EVALUATION of INTERMEDIATE WHEATGRASS (THINOPYRUM INTERMEDIUM)

Cited by 36 publications

References 4 publications

Characteristics of Perennial Wheatgrass (Thinopyrum intermedium) and Refined Wheat Flour Blends: Impact on Rheological Properties

Characteristics of Perennial Wheatgrass (Thinopyrum intermedium) and Refined Wheat Flour Blends: Impact on Rheological Properties

Breeding Perennial Grain Crops

Development and Evolution of an Intermediate Wheatgrass Domestication Program

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