褐藻酸钠不同储存条件下稳定性研究  

Study on the stability of sodium alginate in different storage conditions

作　　者：刘海燕 马海燕 张强 刘晓东 庄晓伟 姜进举 LIU Hai-yan;MA Hai-yan;ZHANG Qiang;LIU Xiao-dong;ZHUANG Xiao-wei;JIANG Jin-ju(State Key Laboratory of Bioactive Seaweed Substances,Qingdao Brightmoon Seaweed Group Co.,Ltd.,Qingdao 266400;Qingdao Bright Moon Seaweed Bio-Health Technology Group Co.,Ltd.,Qingdao 266400)

机构地区：[1]青岛明月海藻集团有限公司,海藻活性物质国家重点实验室,青岛266400 [2]青岛明月海藻生物健康科技集团有限公司,青岛266400

出　　处：《中国食品添加剂》2021年第5期48-53,共6页China Food Additives

摘　　要：研究不同储存条件(25℃、4℃和-18℃)下褐藻酸钠原料(固体)和褐藻酸钠胶液的稳定性。结果表明,褐藻酸钠原料(固体)在不同储存条件下稳定性不同,对于黏度,常温下储存呈下降趋势,冷藏和冷冻条件下储存很稳定;对于凝胶强度,无论哪种储存条件,前6个月比较稳定,之后开始缓慢下降,冷冻储存下降最慢;对于红外光谱图,不同储存条件下褐藻酸钠光谱图完全相同;褐藻酸钠胶液在冷冻条件下黏度和强度比较稳定,但是在反复冷冻解冻条件下黏度和强度都呈下降趋势,其中强度比黏度下降幅度大。因此,要注意原料的储存条件从而保证原料的稳定性,在产品开发过程中才能更好的进行应用。The stability of sodium alginate(solid)and sodium alginate solution under different storage conditions(25℃,4℃and-18℃)was studied and the results showed the stability was different under different conditions.Viscosity showed a downward trend at room temperature.It was very stable in refrigerated and frozen conditions.For gel strength,no matter what kind of storage conditions,it decreased after 6 months,and it decreased the slowest under refrigeration.The spectrum of sodium alginate under different storage conditions was the same.The viscosity and strength were relatively stable under freezing conditions,but under repeated freezing and thawing conditions,both showed a downward trend,and strength decreased faster than the viscosity.The conclusion is that the storage conditions for raw material is critical to ensure the quality of final product.

关 键 词：褐藻酸钠 稳定性 黏度 凝胶强度 红外光谱 

分 类 号：TS202.3[轻工技术与工程—食品科学]