Tham khảo tài liệu 'wide spectra of quality control part 13', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 350 Wide Spectra of Quality Control fertilization rate. Therefore altitude correction was incorporated in revised AACC method in 1982 Lorenz Wolt 1981 . It was estimated that an average relative humidity of over 80 and a maximum daily temperature of below 13 C during grain filling affected decrease in the falling number to below 120 s commercially acceptable starch quality . Also average relative humidity fell below 70 and average maximum temperature above 16 C during grain filling affected increase in falling number over 230 s bread wheat quality Karvonen et al. 1991 . Kettlewell 1999 proved that application of nitrogen fertilization affected the increase of Falling number in the absence of sprouting. In addition it was estimated that the use of fungicides may reduce falling number Ruske et al. 2004 but this effect is cultivar dependent Wang et al. 2004 . Falling number test can be also influenced by genotype variation. One of the extreme examples of genotype variation is implementation of waxy wheats that are characterized by lower amylose content Graybosch et al. 2000 . Beside the pre-harvest sprouting which is known to affect low falling number there are also a number of additional causes of low falling number such as late maturity a-amylase Mares Mrva 2008 or prematurity a-amylase and retained pericarp a-amylase Lunn et al. 2001 . 6. Determination of mixing and heating properties of dough in one test -Mixolab Although it is a relatively new device introduced in 2004 by Chopin Technologies Villeneuve la Garenne France it has already been within the scope of many scientific papers dealing with the assessment of dough rheological behaviour Rosell et al. 2007 Collar et al. 2007 Kahraman et al. 2008 . Mixolab working principle comprises the combination of Farinograph and Amylograph methods described earlier in the text . Moreover Mixolab system offers additional application called Mixolab Simulator whose results correspond to values and units obtained by .
