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KMID : 1024420090130020105
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Food Engineering Progress
2009 Volume.13 No. 2 p.105 ~ p.109
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Physicochemical Properties of Salicornia herbacea Powder as Influenced by Drying Methods
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Kim Hui-Jeong
Lee Jun-Ho
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Abstract
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The effects of drying methods on the physicochemical properties of Salicornia herbacea powder were investigated. Samples prepared by freeze drying showed a significantly higher L*-value but lower a*-value as compared with those prepared by hot-air drying and vacuum drying (p<0.05). Scanning electron micrograph revealed that freeze drying produced more orderly and denser samples than did vacuum and hot-air drying. Water solubility of the freeze-dried sample was significantly higher than those of the other methods while swelling ratio of the same sample was significantly lower than those of others (p<0.05). Freeze-dried Salicornia herbacea powder contained significantly higher amounts of total sugar and reducing sugar as compared to the other samples (p<0.05).
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KEYWORD
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Salicornia herbacea, powder, physicochemical properties, drying methods
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