|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 3 van 46 gevonden artikelen
| Titel: |
Comparative Studies of Some <I>Triticum</I> Species by Grain Protein and Amino Acids Analyses |
| Auteur: |
A.E. Hassan S. Heneidak S.M.H. Gowayed |
| Verschenen in: |
Journal of agronomy |
| Paginering: | Jaargang 6 (2007) nr. 2 pagina's 286-293 |
| Jaar: |
2007 |
| Inhoud: |
The mature grains of two Egyptian and six imported<I> Triticum </I>species were analyzed for protein patterns, total protein and amino acids content to characterize the variations between them. The data showed twenty two bands of total proteins with an obvious variation in the number and position of bands from one species to another. The highest numbers of proteins bands were recorded in <I>T. paleocolchicum</I> (18 bands) whereas, the lowest ones in <I>T. durum </I>(12 bands). The eight examined <I>Triticum</I> species share nine bands (6, 13, 16, 19, 20 and 21), while there were also some bands which characterize each species. The band (10) is characteristic for <I>T. paleocolchicum</I> and the band (12) for <I>T. dicoccoides</I>. Cladistic analysis support the delimitation of studied species in the two subgenera Triticum and Boeoticum. A high degree of similarity (94%) was observed between <I>T. aestivum</I> and <I>T. spelta</I>. Total protein of the grains varied from a minimum of 9.3% in <I>T. aestivum</I> to a maximum of 14.8% in <I>T. dicoccoides</I>. Most amino acids showed a significant variation between the examined <I>Triticum </I>species and all essential amino acids compared well with FAO/WHO reference pattern. The nutritional quality of proteins as measured by their essential amino acids chemical scores ranged from 14.29% for tyrosine in <I>T. spelta</I> grain protein to 239.29% for isoleucine in <I>T. durum</I> grain protein. Most essential amino acid of grain protein in <I>T. aestivum</I> and <I>T. dicoccoides</I> record higher values than the FAO/WHO (1990) recommended pattern. All the studied <I>Triticum</I> species had high content from the non-essential amino acids, than essential amino acids, particularly glutamic acid that had the greatest proportion ranging from 24.86 g/100 g protein in <I>T. dicoccoides</I> to 36.13 g/100 g protein in <I>T. spelta</I>. The six studied <I>Triticum</I> species imported from outside Egypt had pronounced total protein and amino acids content and consistent the most suitable condition for growing under Ismailia conditions. |
| Uitgever: |
Asian Network for Scientific Information, Pakistan |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 46 gevonden artikelen
| << vorige | volgende >> |