期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 52, 期 2, 页码 146-150出版社
ELSEVIER
DOI: 10.1016/j.lwt.2011.09.013
关键词
Cryoprotection; Cell viability; Tissue heterogeneity; Antifreeze protein
资金
- Tempus Project [CD_JEP-40065-2005]
- U Tylewicz the Marco Polo Programme
- Swedish Research Council for Environmental, Agricultural Sciences and Spatial Planning, FORMAS
Whole strawberries were vacuum infused with cryoprotectants to improve their freezing tolerance. The strawberries were infused with 12 g/100 g trehalose solution; 0.2 g/100 g cold-acclimated wheatgrass solution (AWWE) containing antifreeze protein (AFP) or combination of 12 g/100 g trehalose with 0.2 g/100 g AWWE under vacuum for 14 mm. The fruits were frozen in liquid nitrogen and thawed at room temperature before being evaluated for cell viability, drip loss and preservation of texture. The results showed that the combined effects of both cryoprotectants significantly improved the freezing tolerance of the treated strawberries. The cryoprotection effect was influenced by the heterogeneity of the tissues in the fruits. (C) 2011 Elsevier Ltd. All rights reserved.
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