富含低聚木糖的小麦麸皮饮料的研制

以小麦麸皮为原料,经焙烤、酶解、澄清和调配等工艺制成富含低聚木糖的保健功能性饮料。先将小麦麸皮在180℃下焙烤20 min,之后采用木聚糖酶将其中的木聚糖酶解为低聚木糖,采用风味蛋白酶将蛋白质酶解为短肽,中温α-淀粉酶将淀粉酶解为葡萄糖和麦芽糖。优化后的酶解条件为:木聚糖酶153 U/g麸皮、风味蛋白酶138 U/g麸皮、中温α-淀粉酶60 U/g麸皮,料水比1∶8(g∶mL),pH值6.0,反应温度50℃,反应时间4 h。酶解液经稀释后加入0.2 g/L皂土和0.1 g/L壳聚糖澄清,调配时加入10 g/L蜂蜜、60 g/L白砂糖和0.75 g/L柠檬酸,经超高温瞬时杀菌、无菌灌装得到成品。低聚木糖(2.06 mg/mL)和短肽为饮料中主要功能性成分。

Study on Preparation of Xylooligosaccharides-Enriched Wheat Bran Beverage

Xylooligosaccharide(XOs)-enriched Wheat bran beverage was prepared by main processing units including baking,enzymatic hydrolysis,clarification and seasoning.Baking conditions is 180℃,20min.Enzyme xylanase was used to hydrolyze xylan into XOs;Flavorzyme was used to hydrolyze protein into peptides and mid-temperature α-amylase were used to hydrolyze starch into glucose.Optimal conditions of combined enzyme hydrolysis were: xylanase 153 U/g wheat bran,flavorzyme 138U/g wheat bran,mid-temperature α-amylase 60U/g wheat bran,solid to liquid ratio 1:8,pH 6.0,reaction temperature 50℃ and reaction time 4h.Dilute hydrolyzed was clarified by adding 0.2 gLbentonite and 0.1 g/L chitosan for 30min.The reaction was then followed by seasoning with 10 g/L honey,60 g/L sucrose and 0.75 g/Lcitric acid,ultra high temperature sterilizing and aseptic filling.The beverage,containing abundant XOs and peptides,is a healthy drink.