KMID : 0380620220540020224
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Korean Journal of Food Science and Technology 2022 Volume.54 No. 2 p.224 ~ p.227
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Application of turanose as a cryoprotectant for the improvement of Baker¡¯s yeast storability
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Bae Go-Eun
Choi Seong-Won Yoo Sang-Ho
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Abstract
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In this study, the protective effects of turanose on Saccharomyces cerevisiae (Baker¡¯s yeast) were examined during the freeze-drying process to evaluate the feasibility of utilizing turanose as a novel cryoprotectant. The survival rate of the Baker¡¯s yeast cells improved substantially with a cryoprotective medium containing turanose in a substitutiondependent manner. In accordance with these survival rates, the yeast cell surfaces became smoother as the turanose content increased. Turanose with skim milk maintained the viability of the Baker¡¯s yeast, which improved substantially upon storage at ?20oC. Thus, it is thought that turanose will exhibit excellent preservation effects during the distribution of Baker¡¯s yeast. Finally, these results suggest that turanose has the potential to be used as a novel cryoprotectant against various microorganisms.
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KEYWORD
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turanose, cryoprotectant, Saccharomyces cerevisiae, freeze-drying
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