鸡肉蛋白抗氧化肽喷雾干燥工艺优化研究
Optimization of Spray Drying Technology of Antioxidant Peptide of Chicken Protein
裴小平1
作者信息
- 1. 中山市技师学院食品化工系,广东中山528429
- 折叠
摘要
[目的]建立鸡肉蛋白抗氧化肽(APCP)在喷雾干燥条件下保持其活性的高效干燥工艺并明确其活性保持水平及理化特性.[方法]采用响应曲面法优化APCP喷雾干燥的最佳工艺条件,工艺优化过程中活性保持水平以清除O2·-能力为衡量指标,最优工艺条件下活性保持水平以干燥样品清除O 2·-能力与冷冻干燥样品清除O 2·-能力比值为衡量指标,其中清除O 2·-能力测定采用A052抗超氧阴离子试剂盒法;以冷冻干燥样品为参照物,通过堆积密度、溶解性、吸湿性、感官色泽、清除O 2·-能力等指标考察喷雾干燥样品理化特性.[结果]建立APCP最佳喷雾干燥条件为进口温度165℃,出口温度104℃,进料流速4.6 mL/min,在此条件下APCP清除O2·-能力得到了很好地保持,保持率(90.67±5.53)%,水分含量(6.35±0.43)%;喷雾干燥样品的堆积密度变大、溶解时间延长、吸湿率降低、色泽稍微变白、清除O2·-能力下降.[结论]在较高进口温度(165℃)、较低出口温度(104℃)及适当进料流速(4.6 mL/min)条件下APCP活性保持率可达(90.67±5.53)%,且所得APCP干燥效果良好,显示出较好的应用前景.
Abstract
[Objective] To establish a highly efficient spray drying technology for preparing antioxidant peptide of chicken protein(APCP) un-der maximum extent keeping its activity, and determine its remain activity and physicochemical properties.[Method]Response surface method-ology( RSM) was used to determine the optimal spray drying process.Residual activity was evaluated by superoxide anion free radical scaven-ging activity during spray drying process, and the ratio of superoxide anion free radical scavenging activity of spray drying APCP to that of freeze drying APCP was used to evaluate the remain antioxidant activity of APCP at optimum conditions .Taking freeze drying APCP as refer-ence object, the stacking density, solubility, hygroscopicity, colour and free radical scavenging activity were chosen as indexes to investigate the physicochemical properties of the spray drying product .[ Result]The optimum spray drying conditions: inlet temperature 165 ℃, outlet temperature 104 ℃, feed flow rate 4.6 mL/min, and the yield of keeping activity could reach up to ( 90.67 ±5.53)%, and water content on-ly (6.35 ±0.43)% under such conditions.The stacking density of pray drying APCP increased, the soluble time prolonged, the hygroscopic-ity decreased, the color become a bit whiter, and the activity was lower.[Conclusion]The yield of keeping activity can reach up to (90.67 ± 5.53)% on inlet temperature 165 ℃, outlet temperature 104 ℃ and feed flow rate 4.6 mL/min.Drying efficiency of APCP obtained in this way are satisfying, indicating assuring potential for applications.
关键词
鸡肉蛋白/抗氧化肽/喷雾干燥/工艺/堆积密度/吸湿性/溶解性Key words
Chicken protein/Antioxidant peptide/Spray drying/Properties/Stacking density/Hygroscopicity/Solubility引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据