膨化和制粒加工对饲料氨基酸稳定性的影响
Effects of Extrusion Processing and Pelleting on Stability of Feed Amino Acids
牛化欣 1过世东 2谢中国 2祝爱侠2
作者信息
- 1. 内蒙古民族大学动物科技学院,通辽028000;江南大学食品科学与技术国家重点实验室,江南大学食品学院,无锡214122
- 2. 江南大学食品科学与技术国家重点实验室,江南大学食品学院,无锡214122
- 折叠
摘要
采用膨化和制粒工艺生产添加有晶体氨基酸(CAA)或微胶囊氨基酸(MAA)的水产颗粒饲料,研究2种加工过程对饲料CAA和MAA的损失及其在水中的稳定性效果,旨在阐明挤压加工和环膜制粒工艺对饲料CAA和MAA稳定性的影响.结果表明,饲料加工对CAA和MAA的损失没有显著性差异(P＞0.05),相比MAA,在饲料加工过程中晶体赖氨酸(C-Lys)和蛋氨酸(C-Met)分别多损失0.37％～ 8.02％和1.16％～4.29％;加工饲料的CAA在水中的损失较大,饲料水中浸滤60 min时,不同挤压温度饲料C-Lys比M-Lys多溶失23.99％～40.68％,C-Met比M-Met多溶失9.0％～ 13.5％;饲料水中浸滤120 min时,不同挤压温度饲料C-Lys比M-Lys多溶失24.42％～43.22％,C-Met比M-Met多溶失10.45％～17.47％.挤压温度的升高增加了氨基酸的热损失,但改善了饲料氨基酸在水中的溶失;MAA改善了CAA在饲料加工过程损失和水中的溶失.
Abstract
In this paper,extrusion processing,pelleting production process had been added crystalline amino acids (CAA) or microcapsules aquatic feed pellets amino acid (MAA) to study the loss of the two kinds of processing feed CAA and MAA and its stability in water sexual effect,seeking to clarify the impact of extrusion processing and the ring membrane pelleting process feed CAA and MAA stability.The results showed that the loss of feed processing CAA and MAA has no significant difference (P ＞ 0.05) compared to MAA crystal lysine in feed processing (C-Lys) and methionine (C-Met) ;respectively,more than the loss of 0.37 ％ ～ 8.02％ 1.16％～4.29％ ;the processing feed the CAA losses in the water,feed water leaching 60 min,the different extrusion temperature feed C-Lys and more soluble than the M-Lys lost 23.99％～ 40.68％ C-Met than the M-Met multi dissolved lost as 9.0％ ～13.5％ ;when feed water leaching as 120 min,feed C-Lys had different extrusion temperature more than the M-Lys dissolved lost as 24.42％～43.22％ ratio of C-Met M-Met with the multi-dissolved lost as 10.45％～ 17.47％.The elevated extrusion temperature has increased the heat loss of the amino acid while improved feed amino acid dissolved in the water loss; MAA improved the CAA feed processing losses and the loss of the water soluble.
关键词
挤压加工/环膜制粒/水产饲料/氨基酸Key words
extrusion processing/pelleting/aquafeed/amino acids引用本文复制引用
基金项目
国家自然科学基金(31260638)
浙江省国内科技合作与成果引进转化项目(2007d70SA450004)
内蒙古民族大学博士科研启动基金(BS266)
出版年
2013
NETL
NSTL
维普
万方数据