机构地区: 西北农林科技大学农学院
出 处: 《麦类作物学报》 2009年第5期915-918,共4页
摘 要: 为给酿醋原料的合理选择提供参考依据,以小麦粉、麸皮+小麦粉、麸皮+玉米粉、玉米粉4种物料为发酵原料,利用自动化喷淋式微型发酵罐,采用自回淋发酵工艺进行食醋发酵,对发酵过程中不同醪液及食醋的抗氧化性进行了研究。结果表明,麸皮+小麦粉和麸皮+玉米粉酿制的食醋对二苯代苦味酰自由基(DPPH.)的清除作用明显优于小麦粉和玉米粉酿制醋;添加麸皮发酵得到的食醋,其总抗氧化能力大幅度提高,约为同条件下未添加麸皮食醋的3倍;多酚含量也大幅度提高,约为同条件下未添加麸皮食醋的2.3倍。说明食醋清除自由基的能力与其多酚含量有明显的关系;同时说明发酵原料中添加麸皮酿制的食醋,保健功能明显优于未添加麸皮的发酵醋。 To study the influence of the raw materials on quality of vinegar during fermentation, we used grain raw materials wheat flour, wheat brans + wheat flour, wheat brans + corn, corn) to ferment vinegar by fermenters which made in laboratory, then took the vinegar as the research object to analyze its antioxidant features. The main conclusion of this study were as follows: Different vinegars from different raw materials all had certain anti-oxidation capacity and the eliminating (DPPH ·)ability. And its ability increased with the addition of wheat brans. The vinegar with wheat brans had higher total antioxidation ability and eliminating (DPPH · )ability than wheat and corn vinegar. It suggested that addition Of wheat brans can enhance the antioxygenic property and improve the functionality of the vinegar.