珍珠粉改善黄酒的品质

为探讨珍珠粉对黄酒品质及抗氧化功能的影响,将发酵15 d的酒醪加入珍珠粉后继续发酵,对发酵后的珍珠黄酒品质和抗氧化功能进行评价。结果显示,添加珍珠粉的黄酒在酒精度、总糖、非糖固形物、氨基酸态氮、钙离子含量等方面随着珍珠粉添加量的增加而升高,添加高剂量珍珠粉的黄酒与空白黄酒相比差异极显著(p<0.01);而对于总酸,添加珍珠粉的黄酒高剂量组总酸含量最低,为2.04 g/L,中剂量组总酸含量稍高为3.12 g/L,显著低于空白黄酒组(p<0.01),珍珠黄酒低剂量组总酸含量最高,为6.16 g/L,与空白黄酒组无显著差异(p>0.05)。酿制的珍珠黄酒高剂量组口感、色泽俱佳,并且具有良好的抗氧化活性,能显著增强超氧阴离子自由基和羟基自由基的清除率,珍珠黄酒高剂量组超氧阴离子的清除率为57.54%、羟基自由基清除率为66.18%,同时显著增强小鼠血清及肝组织中SOD酶活力(p<0.05,p<0.01),显著降低血清和肝组织中MDA含量(p<0.05,p<0.01)。研究发现,在黄酒酿造过程中添加8 g/L珍珠粉可显著改善黄酒的品质,提高其抗氧化功能。

Anti-diabetic Effects of Polysaccharides from Ethanol-insoluble Residue of Schisandra chinensis（Turcz.） Baill on Alloxan-induced Diabetic Mice

The ethanol-insoluble residue of Schisandra generated during lignans industrial production is usually treated as solid waste. However, there is active polysaccharide which could be used in it. In this work, the water-soluble polysaccharides from the ethanol-insoluble residue of Schisandra（ESCP） were obtained and their anti-diabetic effect was evaluated. The results indicate that ESCP could significantly reduce the blood glucose level in alloxan-induced diabetic mice. Moreover, the ESCP could significantly improve the lipid metabolism and increase the content of liver glycogen in alloxan-induced diabetic mice. The results indicate that ESCP could be developed into a potential natural hypoglycemic agent.