摘要
琼脂是一种重要的多糖产品,我国生产琼脂的主要原料是江蓠。琼脂提取过程中的清洗工艺耗水量大,是影响琼脂生产成本及污水排放的重要因素。以江蓠琼脂生产过程为范例,研究清洗用水重复使用对琼脂透明度、浊度、硫酸根、3,6-内醚半乳糖、凝胶强度、凝固温度及熔化温度的影响,探索江蓠琼脂提取过程中的清洗用水进行重复使用的可行性。结果表明:随着清洗用水重复使用次数的增加,琼脂的透明度不断下降,而浊度及硫酸根与3,6-内醚半乳糖含量不断上升,凝胶强度、凝固温度及熔化温度呈现先上升后下降。当江蓠琼脂清洗用水重复使用次数小于3时,对琼脂的质量没有显著影响。该结果表明重复使用江蓠琼脂生产的清洗用水具有一定的可行性,对降低琼脂生产成本及减少污水排放量具有参考价值。
Agar is an important polysaccharide product, and Gracilaria is the main raw material for agar production in China. The cleaning process in the agar extraction process always consumes a large amount of water, which is an important factor affecting agar production cost and sewage discharge. Taking the production process of Gracilaria agar as an example, the effect of repeated use of cleaning water on the transparency, turbidity, sulfate,3,6-anhydro-Lgalactose, gel strength, gelling temperature and melting temperature of agar was studied, and the feasibility of repeated use of cleaning water in the extraction process of Gracilaria agar was explored. The results showed that the transparency of agar decreased with the increase of reuse times of washing water, while the turbidity and contents of sulfate and 3,6-anhydro-L-galactose increased continuously, and the gel strength, solidification temperature and melting temperature increased first and then decreased. When the water for cleaning Gracilariawas was reused less than 3 times, there was no significant effect on the quality of the agar. So it is feasible to reuse the cleaning water produced by Gracilaria agar.The paper has reference value for reducing agar production cost and reducing sewage discharge.
作者
万博恺
倪辉
杨远帆
姜泽东
朱艳冰
肖安风
李清彪
WAN Bo-kai;NI Hui;YANG Yuan-fan;JIANG Ze-dong;ZHU Yan-bing;XIAO An-feng;LI Qing-biao(College of Food and Biology Engineering,Jimei University,Fujian Xiamen 361021,China;Fujian Provincial Key Lab of Food Microbiology and Enzyme Engineering,Jimei University,Fujian Xiamen 361021,China;Research Center of Food Biotechnology of Xiamen City,Fujian Xiamen 361021,China)
出处
《当代化工》
CAS
2020年第5期786-789,共4页
Contemporary Chemical Industry
基金
国家海洋局海洋公益性行业科研专项(201505033-2)
关键词
江蓠
琼脂
清洗
水
重复使用
Gracilaria
Agar
Cleaning
Water
Repeated use
