4 research outputs found
Potential for acrylamide formation in potatoes: data from the 2003 harvest
Reducing sugars, free amino acids, and the potential for acrylamide formation were determined in more than 50 potato samples from the 2003 harvest in Switzerland. The reducing sugar content strongly correlated with acrylamide, whereas no correlation was found between acrylamide and free asparagine or the pool of free amino acids. The reducing sugar contents and the acrylamide potentials were higher in most of the cultivars tested than in the samples from 2002. This was probably due to the hot and dry summer of 2003. Monitoring sugars and amino acids during heating at 120°C and 180°C showed that glucose and fructose reacted much faster than sucrose and the amino acids. Glutamine was consumed to a larger extent than any of the other amino acids. During prolonged storage, the reducing sugars decreased considerably while only moderate changes in the free amino acids were observed. Altogether, glucose and fructose remain the critical factors for acrylamide formation in potatoes and represent the most feasible way of reducing the formation of acrylamide in potato product
Potential for acrylamide formation in potatoes: data from the 2003 harvest
ISSN:1438-2377ISSN:1438-238
Six-month patient-reported outcome (PRO) results from AQUARiUS, a prospective, observational, multicenter phase 4 study in patients (Pts) with metastatic castration-resistant prostate cancer (mCRPC) receiving abiraterone acetate + prednisone (AAP) or enzalutamide (ENZ).
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Comparative analysis of performance and stability among composite cross populations, variety mixtures and pure lines of winter wheat in organic and conventional cropping systems
This study investigated the effects of increased genetic diversity in winter wheat (Triticum aestivum L.),
either from hybridization across genotypes or from physical mixing of lines, on grain yield, grain quality,
and yield stability in different cropping environments. Sets of pure lines (no diversity), chosen for high
yielding ability or high quality, were compared with line mixtures (intermediate level of diversity), and
lines crossed with each other in composite cross populations (CCPn, high diversity). Additional populations
containing male sterility genes (CCPms) to increase outcrossing rates were also tested. Grain yield,
grain protein content, and protein yield were measured at four sites (two organically-managed and two
conventionally-managed) over three years, using seed harvested locally in each preceding year. CCPn
and mixtures out-yielded the mean of the parents by 2.4% and 3.6%, respectively. These yield differences
were consistent across genetic backgrounds but partly inconsistent across cropping environments and
years. Yield stability measured by environmental variance was higher in CCPn and CCPms than the mean
of the parents. An index of yield reliability tended to be higher in CCPn, CCPms and mixtures than the
mean of the parents. Lin and Binns’ superiority values of yield and protein yield were consistently and
significantly lower (i.e. better) in the CCPs than in the mean of the parents, but not different between
CCPs and mixtures. However, CCPs showed greater early ground cover and plant height than mixtures.
When compared with the (locally non-predictable) best-yielding pure line, CCPs and mixtures exhibited
lower mean yield and somewhat lower yield reliability but comparable superiority values. Thus, establishing
CCPs from smaller sets of high-performing parent lines might optimize their yielding ability. On
the whole, the results demonstrate that using increased within-crop genetic diversity can produce wheat
crops with improved yield stability and good yield reliability across variable and unpredictable cropping
environments