机构地区: 西北工业大学材料学院
出 处: 《食品科学》 2005年第9期347-349,共3页
摘 要: 利用亚硫酸氢钠溶液对羽毛进行预处理,采用氢氧化钠溶液水解羽毛制得可溶性羽毛蛋白。考察了预处理剂的用量、碱液浓度、液固比、水解时间、水解温度等因素对羽毛水解所得可溶性蛋白收率的影响。得到水解最佳条件:ω(亚硫酸氢钠):ω(羽毛粉)=30:100、ω(氢氧化钠)=0.4%水溶液、ω(氢氧化钠深液):ω(羽毛粉)=15:1、反应温度90℃、反应时间2h。在此条件下制得的可溶性羽毛蛋白的收率达65.7%。 A new method of extracting soluble protein from feather was introduced in the paper. Feather was preprocessed with sodium bisulfite and then hydrolysised by sodium hydroxide. After investigating the effect factors such as amounts of sodium bisulfite, alkaline solution concentration, ratio of liquid to solid, hydrolytic temperature and hydrolytic time, the optimum hydrolytic conditions were obtained as follows: ω( sodium bisulfite);ω( feather)=30:100, alkaline solution concentration 0. 4%, ω( liquid);ω( feather)=15:1, hydrolytic temperature 90℃ and hydrolytic time 2 h. Under these conditions, the recovery ratio of the soluble feather protein was 65.7%.
领 域: [化学工程]