摘要
采作微孔滤膜-折光法对冬笋可溶性固形物含量进行测定,同时分别连续测定含量为10%的蔗糖、草酸和柠檬酸水溶液各6 次,以验证该方法测定可溶性固形物含量的可行性,结果表明：以该方法测得的蔗糖、草酸、柠檬酸水溶液的平均值分别为9.83%、9.79%、9.71%,其相对标准偏差分别为1.31%、1.04%、1.05%;冬笋中可溶性固形物为6.9% - 8.2%,平均含量为7.5%.
Soluble solid content in winter shoot of Phyllostachys heterocycla cv. pubescens was determined by millipore filter-refractometry. At thesame time, continuous determinations were conducted on aqueous solution of 10% sucrose, oxalic acid and citric acid for 6 times each. The resultdemonstrated that the average values of different solutions were 9.83%, 9.79%, 9.71% respectively and standard deviation of 6 tests was 1.31%,1.04% and 1.05% respectively. Soluble solid content in winter shoot was 6.9% -8.2% and the average content was 7.5%.
出处
《浙江林业科技》
北大核心
2014年第3期79-81,共3页
Journal of Zhejiang Forestry Science and Technology
基金
国家林业公益性行业科研专项(201304705)
浙江省科技厅"森林食品质量安全评价与控制技术研究"(2012F30036)
关键词
微孔滤膜
折光法
冬笋
millipore filter
refractometry
winter shoot
