Connection between Structure and Quality of Barley Husk
| Autor: | Erja Kotaviita, Hannele Sweins, Silja Home, Marjatta Salmenkallio-Marttila, Juhani Olkku |
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| Rok vydání: | 2005 |
| Předmět: |
0106 biological sciences
media_common.quotation_subject microstructure food and beverages barley 04 agricultural and veterinary sciences cementing layer Pulp and paper industry 040401 food science 01 natural sciences Applied Microbiology and Biotechnology Husk 0404 agricultural biotechnology Agronomy 010608 biotechnology Quality (business) skinning husk quality Food Science Biotechnology Mathematics media_common |
| Zdroj: | Olkku, J, Kotaviita, E, Salmenkallio-Marttila, M, Sweins, H & Home, S 2005, ' Connection between structure and quality of barley husk ', Journal of the American Society of Brewing Chemists, vol. 63, no. 1, pp. 17-22 . https://doi.org/10.1094/ASBCJ-63-0017 |
| ISSN: | 1943-7854 0361-0470 |
| DOI: | 10.1094/asbcj-63-0017 |
| Popis: | The objective of this work was to compare the chemical and physical quality of husks of barleys with high and low levels of husk damage and to develop analytical methods for breeders and maltsters to evaluate the potential for husk damage. For good husk adherence, the chemical and microscopic analyses indicated that the physical structure of the husk is more important than its chemical composition. The cementing layer was stained red with Oil Red O, indicating that it is a cutineous substance. Microscopic evaluation showed that the husk usually did not separate along the cementing layer between the pericarp and the husk. Instead, the husk layers with large thin-walled cells were broken. A thin dorsal vein and a thin layer of parenchyma in the lemma appeared to indicate less easily damaged husk than did a strong dorsal vein and thick layer of large thin-walled parenchyma cells. Analytical methods were developed for visual and mechanical evaluation of the husk damage. The most critical steps of husk damage during malting operations were identified by using a visual method. The results can be used for the development of the best practices in the entire production chain. Evaluation of barleys grown in various locations and crop years confirmed that husk quality is a varietal characteristic, but growing conditions also have a marked effect on it. |
| Databáze: | OpenAIRE |
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