TY - JOUR
T1 - Quantitative in-situ monitoring of germinating barley seeds using X-ray dark-field radiography
AU - Nielsen, Mikkel Schou
AU - Damkjær, Kasper Borg
AU - Feidenhans'l, Robert Krarup
PY - 2017/4/1
Y1 - 2017/4/1
N2 - During production of malt from barley seeds, cell walls and starch granules in the endosperm are degraded. Although this modification process is important for malt quality, the modification patterns of individual barley seeds have yet to be reported. The use of destructive microscopy methods have previously limited the investigations to ensemble averages. X-ray dark-field radiography is a recent non-destructive imaging method which is sensitive to microstructural variations. In this study, the method was applied for quantitative in-situ monitoring of barley seeds. Microstructural changes relating to water uptake and modification were monitored over a 43–55 h period. Sub-resolution stress cracks as well as a dark-field signal believed to originate from starch granules were detected. The evolution of the dark-field signal followed the known modification pattern in barley seeds. Through image analysis, quantitative parameters describing the movement of the front of the observed pattern were obtained. Based on these findings, X-ray dark-field radiography presents a possible novel approach to monitor modification of germinating barley seeds.
AB - During production of malt from barley seeds, cell walls and starch granules in the endosperm are degraded. Although this modification process is important for malt quality, the modification patterns of individual barley seeds have yet to be reported. The use of destructive microscopy methods have previously limited the investigations to ensemble averages. X-ray dark-field radiography is a recent non-destructive imaging method which is sensitive to microstructural variations. In this study, the method was applied for quantitative in-situ monitoring of barley seeds. Microstructural changes relating to water uptake and modification were monitored over a 43–55 h period. Sub-resolution stress cracks as well as a dark-field signal believed to originate from starch granules were detected. The evolution of the dark-field signal followed the known modification pattern in barley seeds. Through image analysis, quantitative parameters describing the movement of the front of the observed pattern were obtained. Based on these findings, X-ray dark-field radiography presents a possible novel approach to monitor modification of germinating barley seeds.
U2 - 10.1016/j.jfoodeng.2016.11.011
DO - 10.1016/j.jfoodeng.2016.11.011
M3 - Journal article
SN - 0260-8774
VL - 198
SP - 98
EP - 104
JO - Journal of Food Engineering
JF - Journal of Food Engineering
ER -