Effects of Calcium Oxide on Physicochemical Properties of Spray-dried Bayberry Powder

氧化钙对喷雾干燥杨梅粉理化性质的影响（英文）

[Objective] Effects of different contents of calcium oxide on physicochemi- cal properties of spray-dried bayberry powder were studied. [Method] Bayberry pow- der produced from bayberry juice adding 0, 2 and 4 g/L calcium oxide using the spray drying technique has been selected. The physicochemical properties of the spray-dried bayberry powder were investigated by determining moisture content, colour, apparent density, wettability, angle of repose and moisture absorption rate of bayberry powder. [Result] The results showed that the content of calcium oxide had a significant effect on the moisture content and colour of bayberry powder. Effects of different contents of calcium oxide on the apparent density of spray-dried bayber- ry powder were not obvious. Adding calcium oxide had a significant effect on the wettability, angle of repose and moisture absorption rate of spray-dried bayberry powder, nevertheless, there was not obvious difference on these properties between adding 2 and 4 g/L calcium oxide. [Conclusion] The results confirmed that the con- tent of calcium oxide had a significant effect on the properties of spray-dried bay- berry powder.

[目的]研究不同氧化钙含量对喷雾干燥杨梅粉理化性质的影响。[方法]将添加氧化钙含量为0、2、4 g/L的杨梅汁喷雾干燥得到杨梅粉,通过测定杨梅粉的水分含量、色泽、表观密度、湿润性、休止角和吸湿性研究三种杨梅粉的理化性质。[结果]氧化钙的添加量显著地影响杨梅粉的水分含量和色泽;氧化钙含量对杨梅粉表观密度的影响不显著;添加氧化钙可以显著影响杨梅粉的湿润性、休止角和吸湿性,而添加2和4 g/L氧化钙的杨梅汁所制得的杨梅粉之间没有显著差异。[结论]添加氧化钙影响喷雾干燥杨梅粉的产品品质。