摘要
研究了预处理过程中氯化钙浓度、烫漂温度及时间对上海青保脆护绿效果的影响,并通过设计三因素三水平响应面优化实验,以叶绿素保留率和剪切力为响应值,对上海青预处理条件进行优化。研究结果表明:最优的预处理条件为氯化钙浓度0.6%(w/v),烫漂温度86℃,烫漂时间43 s。最优预处理条件下上海青中叶绿素保留率达到96.42%(w/w),剪切力为28.41 N,与预测值基本一致。经烫漂后的上海青色泽翠绿,脆度适中,表明优化条件可行可靠。
Influences of calcium chloride concentration, blanching temperature and period on brittleness-keeping and green-protection effects for Brassica chinensis L. were investigated. The pretreatment conditions for Brassica chinensis L. were optimized by response surface methodology(RSM) of 3 factors and 3 levels experimental design using chlorophyll retention rate and shear force as response values. Results showed that the optimum pretreatment conditions for brittleness-keeping and green-protection of Brassica chinensis L. were as follows: calcium chloride concentration of 0. 6%(w/v), blanching temperature of 86℃, and blanching period of 46 s. Under the optimized pretreatment conditions, chlorophyll retention rate and shear force of Brassica chinensis L. were 96. 42%(w/w) and 28. 41 N which was highly consistent with the predictive value. Brassica chinensis L. blanched showed greenish color and proper brittleness implicating that the pretreatment conditions obtained by RSM were feasible and reliable.
作者
周湘
李思敏
ZHOU Xiang;LI Simin(Guangdong Guangken Green Agricultural Products Co.,Ltd,Guangzhou 510630,China)
出处
《广东轻工职业技术学院学报》
2022年第6期15-20,共6页
Journal of Guangdong Industry Polytechnic
关键词
上海青
保脆
护绿
预处理条件
优化
Brassica chinensis L.
brittleness-keeping
green-protection
pretreatment conditions
optimization
