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KMID : 0525720140190010001
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Journal of Chitin and Chitosan
2014 Volume.19 No. 1 p.1 ~ p.7
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Effects of α- and β-Chitosan Treatment on Growth and Selected Quality of Soybean Sprouts
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No Hong-Kyoon
Park Na-Young
Kang Eun-Jee
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Abstract
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The effects of chitosans, prepared from crab shell (α-chitosan) and squid pen (β-chitosan), on growth and selected quality of soybean sprouts were evaluated. Soybeans were soaked in water (control 1), 0.05% acetic acid (control 2), 0.05% α- and β- chitosan solutions for 8 hr and then cultivated for 3 days at 27±2 ℃. Chitosan treatment increased the total weight of soybean sprouts by 7.1~7.6% compared with control 1, and the effectiveness of chitosan treatment was not affected by chitosan types (α- and β-chitosan). There were no significant differences in hardness and nitrogen content among four treatment groups. The total free amino acid contents of soybean sprouts treated with α- and β-chitosans were higher than those of controls 1 and 2, mainly due to the increased asparagine. DPPH radical scavenging activities of soybean sprouts treated with water (control 1), α-chitosan and β-chitosan were comparable but higher than that of control 2. Increased shelf life of soybean sprouts treated with α-chitosan, compared with control 1, was not observed during storage at 10 ℃ for 21 days.
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KEYWORD
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Chitosan, Growth, Quality, Soybean sprouts, Storage
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