05.01.2013 Views

Joint International Conference on Long-term Experiments ...

Joint International Conference on Long-term Experiments ...

Joint International Conference on Long-term Experiments ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

2. The influence of the biological links of the autumn wheat’ seeds <strong>on</strong> the gluten<br />

c<strong>on</strong>tent.<br />

Am<strong>on</strong>g the comp<strong>on</strong>ent traits of the bread-making quality, a key-role is detained by the<br />

protein quantity present in the grain, especially of those proteins comp<strong>on</strong>ents of the gluten.<br />

The efficaciousness (force) of dough, the water absorpti<strong>on</strong>’ capacity and the bread tolerance<br />

to obsolescence, all largely rely <strong>on</strong> these latest proteins comp<strong>on</strong>ent.<br />

The bread volume depends in an essential manner <strong>on</strong> the gluten quality which, unlike<br />

the quality, is <strong>on</strong> the first hand genetically established, being very little influenced by the<br />

envir<strong>on</strong>mental c<strong>on</strong>diti<strong>on</strong>s. At last, the quality is influenced by the bio-chemical properties of<br />

the glutenins, main comp<strong>on</strong>ents of the gluten.<br />

The gluten has some properties which c<strong>on</strong>fer to it a unique positi<strong>on</strong> am<strong>on</strong>g the vegetal<br />

proteins, namely: cohesi<strong>on</strong>, elasticity and extensibility in hydrated state. As a c<strong>on</strong>sequence,<br />

the (wheat) flour characteristics are, <strong>on</strong> the first hand, a functi<strong>on</strong> of gluten and of its<br />

behaviour in aqueous envir<strong>on</strong>ment. The gluten analysis supposes an assessment of its<br />

c<strong>on</strong>tent and its quality.<br />

The data <strong>on</strong> gluten amount c<strong>on</strong>tained in the biological links of the<br />

(“Dropia”) autumn type of wheat for the 2004-2006 two-year period are<br />

being presented in the table 2 bellow.<br />

Table 2: The impact of the biological links of wheat seed <strong>on</strong> the gluten c<strong>on</strong>tent of the<br />

grains<br />

Biological 2004-2006 2005-2006 2004-2006 Average<br />

category/class Gluten % Gluten % Gluten %<br />

Base (B) mt 28.0 100.0 26.8 100.0 27.4 100.0<br />

SC1 28.0 100.0 26.0 97.0 27.0 98.5<br />

SC2 27.5 98.2 26.0 97.0 26.8 97.8<br />

Other<br />

replicati<strong>on</strong>s I 21.3 76.1 000<br />

19.9<br />

74.2 000<br />

20.6 75.2<br />

Other<br />

replicati<strong>on</strong>s II 20.4 72.8 000<br />

19.2<br />

71.6 000<br />

19.8 72.3<br />

DL 5% 12.3 11.4<br />

DL 1% 20.1 21.4<br />

DL0,1% 25.8 28.5<br />

The c<strong>on</strong>tent of humid gluten has a similar range with the protein c<strong>on</strong>tent. Thus, at the level<br />

of both years of research, the issue of the positive influence of the c<strong>on</strong>servative ameliorati<strong>on</strong><br />

process positively occurs. The gluten c<strong>on</strong>tent, given the c<strong>on</strong>diti<strong>on</strong>s of a c<strong>on</strong>trolled<br />

replicati<strong>on</strong> of seed’ producti<strong>on</strong>, varies almost imperceptibly; this small variati<strong>on</strong> de<strong>term</strong>ines<br />

us to take into c<strong>on</strong>siderati<strong>on</strong> that, in order to reach at a good quality bread producti<strong>on</strong>, <strong>on</strong>e<br />

302

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!