%N 4 %K ĂlelmiszerkĂŠmia - mĂłdszer, ĂlelmiszervizsgĂĄlat - bĂşza %C Budapest %V 60 %L acta79638 %P 372-383 %A SzabĂł P. BalĂĄzs %A VĂŠha Antal %A Gyimes ErnĹ %T BĂşza szemkemĂŠnysĂŠgĂŠnek meghatĂĄrozĂĄsa magmĂŠrĹ eljĂĄrĂĄsokkal = Determination of wheat grain hardness by different kernel measurement techniques %D 2014 %O Bibliogr.: 383. p. ; ill. ; ĂśsszefoglalĂĄs magyar ĂŠs angol nyelven %I WESSLING NemzetkĂśzi KutatĂł ĂŠs OktatĂł KĂśzpont KĂśzhasznĂş Nonprofit Kft. %X A szemkemĂŠnysĂŠg a bĂşzĂĄk egyik igen fontos paramĂŠtere. A szemkemĂŠnysĂŠg morfolĂłgiai szinten a kemĂŠnyĂtĹszemcsĂŠk ĂŠs a fehĂŠrjemĂĄtrix kĂśzĂśtti adhĂŠziĂł mĂŠrtĂŠkĂŠnek fĂźggvĂŠnye. A keletkezĹ ĹrlemĂŠny ĂŠs az endospermium szerkezete kĂśzĂśtti ĂśsszefĂźggĂŠst mĂĄr rĂŠgĂłta vizsgĂĄljĂĄk. A jelen kĂsĂŠrletekben a bĂşza szemkemĂŠnysĂŠgĂŠt a Lloyd 1000 R ĂĄllomĂĄnyvizsgĂĄlĂł berendezĂŠs segĂtsĂŠgĂŠvel terveztĂźk meghatĂĄrozni, amelyhez egy Ăşj, kvĂĄzi statikus mĂŠrĂŠsi eljĂĄrĂĄst dolgoztunk ki. A szemet kĂŠt kĂźlĂśnbĂśzĹ pozĂciĂłban vizsgĂĄltuk (ĂĄllĂł ĂŠs fekvĹ helyzetben). MeghatĂĄroztuk a szemek Young-fĂŠle rugalmassĂĄgi modulusĂĄt, a tĂśrĂŠshez szĂźksĂŠges munkĂĄt ĂŠs a maximĂĄlis tĂśrĹerĹt. A kapott eredmĂŠnyeket ĂśsszehasonlĂtottuk mĂĄs, mĂĄr elterjedt szemkemĂŠnysĂŠg meghatĂĄrozĂł eljĂĄrĂĄssal (Perten SKCS 4100 mĂŠrĹmĹąszer). Az ĂśsszehasonlĂtĂĄshoz a pĂĄros korrelĂĄciĂł mĂłdszerĂŠt alkalmaztuk. A mintasornĂĄl (nedvessĂŠgtartalom: 13,52%) a Hardness Indexnek szoros kapcsolata van a szemek fĂźggĹleges helyzetĂŠben kompressziĂłs eljĂĄrĂĄssal mĂŠrt deformĂĄciĂłs modulussal, a tĂśrĹerĹvel ĂŠs a tĂśrĹ munkĂĄval. A szemek vĂzszintes helyzetĂŠben tĂśrtĂŠnĹ kompressziĂłs eljĂĄrĂĄssal mĂŠrt deformĂĄciĂłs modulussal szoros, a tĂśrĹerĹvel pedig elfogadhatĂł a kapcsolata a Hardness Indexnek. A malom- ĂŠs sĂźtĹiparban a kemĂŠnyszemĹą bĂşzĂĄk szĂĄmĂtanak jĂł minĹsĂŠgĹąnek. KĂsĂŠrleteink eredmĂŠnyei a puha- ĂŠs kemĂŠnyszemĹą alapanyagok elkĂźlĂśnĂtĂŠsĂŠhez nyĂşjtanak segĂtsĂŠget. The grain hardness is one of the most important parameter of wheat. On morphological level it depends on the adhesion of the protein matrix and starch granules. The correlation between the endosperm structure, and the resultant milled grain has long been investigated. In the present experiments the grain hardness of winter wheat varieties were examined with Lloyd 1000 R Testing Machine, where an innovative, quasi-static procedure was developed. The wheat grain was examined in two positions (vertical and horizontal). The Youngâs modulus, the break work and the maximum breaking force were determined. The results were compared with other wellknown method (Perten SKCS 4100 device). The method of pair correlation was applied for comparison study among the results. In case of our sample set (water content: 13,52 %), there were strong correlation among the Hardness Index and the Youngâs modulus, the break work and between the maximum breaking force at vertical position. At horizontal position of the grains, the Hardness Index had robust correlation with the deformation modulus at compression, and adequate correlation with the breaking force. In the milling and baking industry the harder wheat grains expected to have higher quality. Our experiments can be helpful to distinguish the softer and harder grains. %J ĂlelmiszervizsgĂĄlati kĂśzlemĂŠnyek