摘要
采用六偏磷酸钠、氢氧化钠和酒石酸浸提豆渣得大豆多糖SSPSP1、SSPSP2和SSPSP3,考察了阳离子种类及浓度对三种大豆多糖在高岭土悬浮液中絮凝性的影响。结果表明:不同阳离子价态对三种大豆多糖促凝性不同,三价阳离子优于二价阳离子,一价阳离子不具促凝性。采用Fe3+激活大豆多糖絮凝性时,三种大豆多糖的最适Fe3+浓度均为0.040mmol/L,絮凝活性顺序为SSPSP2>SSPSP3>SSPSP1。采用Al3+激活大豆多糖絮凝活性时,SSPSP1、SSPSP2、SSPSP3所需的最适Al3+浓度分别为0.025、0.040、0.040mmol/L,絮凝活性顺序为SSPSP2>SSPSP1>SSPSP3。本研究发现,在Fe3+浓度为0.040mmol/L时,采用SSPSP2对高岭土悬浮液进行絮凝,效果最好。
Three soybean soluble polysaccharides （SSPS P1, SSPS P2 and SSPS P3 ）were extracted by three solvents （hexametaphosphate, sodium hydroxide and tartaric acid ）.Their flocculating activities in Gaolin suspension were studied in the presence of different cations. Results showed that the cationic valence could influence the flocculating activity of SSPSs.As flocculation accelerators,trivalent cations were better than bivalent cations,and monovalent cations did not have the ability to accelerate.When activating the flocculation of three SSPSs by Fe3＋ ,the optimal concentration of Fe3＋ were all 0.040mmol/L and the flocculating activity sequence was SSPS P2 〉 SSPS P3 〉 SSPS P, under the optimal condition.When activating the flocculation of three SSPSs by Al3＋ , the optimal concentration of Fe3＋ required by SSPS P1, SSPS P2, SSPS P3 were 0.025, 0.040, 0.040mmol/L, respectively.The flocculating activity sequence was SSPS P2 〉 SSPS P1 〉 SSPS P3 under the optimal condition.In this study the best flocculation of Gaolin suspension was obtained under Fe3＋ concentration of 0.040mmol/L while SSPS P2 was chosen as an flocculant.
出处
《食品工业科技》
CAS
CSCD
北大核心
2011年第4期109-112,共4页
Science and Technology of Food Industry
基金
广东省科技计划项目(2008A080403009
2008A080403010)
关键词
大豆多糖
阳离子
絮凝率
高岭土悬浮液
soybean soluble polysaccharide
cation
flocculating activity
Gaolin suspension
