摘要
卡拉胶作为一种具有商业价值的亲水凝胶,在食品、药品等领域具有广泛的应用,但在提取过程中色素的溶出会影响产品的品质。文中采用大孔树脂D301和D315对麒麟菜卡拉胶进行脱色研究,以脱色率和多糖保留率为指标,在单因素的基础上,采用正交实验对2种大孔树脂的脱色工艺进行优化。结果表明:大孔树脂D301的脱色效果优于D315,最佳脱色条件为温度50℃、p H 9.0、树脂用量为0.12 g/m L、脱色时间80 min,在此条件下的脱色率达48.44%,多糖保留率则为84.30%。所采用方法操作简单,成本低,为工业生产中卡拉胶脱色提供了理论基础。
As a kind of hydrophilic gel which had commercial value, carrageenan was applied widely in the in- dustry of medicine and food. But the existence of color material would affect the quality of it. In this research, macro- porous resin D301 and D315 were used to decolor carrageenan extracted from Eucheuma. Taking decoloration rate and retention rate of polysaccharide as evaluation standards, and comparing with the decolor result of active carbon, ortho- fonal method was applied to optimize the decolor procession of the two decolorants on the basis of single factor experi- ments for the first time. The results showed that the decoloration rate of active carbon was relatively low with numerous residue of active carbon in the carrageenan solvent. The performance of macroporous resin D315 was not efficient for having a low rentation rate of polysaceharide. The macroporous resin D301 had the most efficient performance in the decoloration procession. The optimal conditions were that the temperature was 50 ℃ , the pH was 7.0, the amount of macroporous resin was 0.12 g/mL, and the used time was 80 min. On the optimal conditions, the decoloration rate was 48.44% , and the polysaceharide rentation rate was 84.30%. The method we applied is simple and cheap, as well as provides base for the industrial decolor procession of carrageenan.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2015年第1期121-125,共5页
Food and Fermentation Industries
基金
中央高校基本业务专项基金(KYZ201154)
江苏高校优势学科建设工程资助项目
江苏省优势学科人才引进项目(No.80900210521)
关键词
卡拉胶
麒麟菜
漂白
大孔树脂
carrageenan
eucheuma
decoloration
macroporous resin
