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Influence of cold a...
Influence of cold acclimation on the mechanical strength of carrot (Daucus carota L.) tissue
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- Gomez, Federico (författare)
- Lund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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Vaughan, D (författare)
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Herppich, W (författare)
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Smallwood, M (författare)
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- Sommarin, Marianne (författare)
- Lund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Gekas, Vassilis (författare)
- Lund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Sjöholm, Ingegerd (författare)
- Lund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2004
- 2004
- Engelska.
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Ingår i: European Journal of Horticultural Science. - 1611-4434. ; 69:6, s. 229-234
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Abstract
Ämnesord
Stäng
- We have investigated the influence of cold acclimation on the mechanical strength of carrot (Daucus carota L.) taproots. Changes in the mechanical strength were monitored when cold acclimation was induced in carrot plants cultivated in a growth chamber under strict climate control and in taproots harvested from field cultivation, where the plants had been exposed to the natural variations in climate. The appearance and accumulation of an antifreeze protein in the cell wall isolated from cold-stored taproots showed that a cold acclimation process is in progress in the harvested taproot derived from carrot plants grown in the field. The force needed to slice the taproots significantly increased during the first 12 weeks of storage, where the higher concentration of the antifreeze protein indicated the highest development of cold acclimation during that period of time. The increase in tissue rigidity during cold acclimation was also shown by the increase of the Young's modulus in taproot tissue from carrot plants acclimated 11 weeks under controlled temperature conditions. After 24 weeks of storage there was a significant increase in slicing force that was accompanied by signs of cell membrane deterioration, as measured by relative electrolyte leakage. Thus, the later increase in tissue strength might be related with a senescence process.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Livsmedelsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Food Engineering (hsv//eng)
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- ref (ämneskategori)
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