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KMID : 0525720180230040234
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Journal of Chitin and Chitosan
2018 Volume.23 No. 4 p.234 ~ p.243
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Spray-Dried Powder Preparation and Physicochemical Properties of Green Coffee Bean Extracts
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Kim Ju-Hyeon
Hong Joo-Heon
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Abstract
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MD20, SD-CD10, SD-CD20) from green coffee bean extract were investigated. Yields were 91.46% for FD powder and 71.63~87.98% for SD powders, respectively. The moisture content of SD powders (1.39~1.86%) was lower than that of FD powder (3.19%). L, a and b value of SD powders were higher than of FD powder. The particle size of the FD powder (147.67 μm) was higher than that of the SD powders (54.23~66.07 μm). The water absorption index of the SD powders (0.51-0.59) were lower than that of the FD powder (0.72). The water solubility index of the SD powders, 77.26-90.07%, was higher than that of the FD powder (70.07%). The total phenolic and flavonoid contents of SD-CD10 were 20.67 g/100 g and 8.92 g/100 g, respectively. The chlorogenic acid content of SD-CD10 (12.04 g/100 g) was higher than other SD powders. The DPPH and superoxide radical scavenging activities of SD-CD10 at 1,000 μg/mL were 88.02% and 86.89%, respectively. The SD-CD10 was better than other SD powders on protective effects against oxidative stress in L-132 cells (87.33%). In conclusion, we provided experimental evidence that spraydried powder of green coffee bean extracts have potential as functional food materials.
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KEYWORD
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Green coffea bean, Coffea Canephora, Spray drying, Physicochemical properties, L-132
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