响应面法优化热泵干燥绿色葡萄干防褐变工艺

廉苇佳, 陈雅, 韩琛, 李海峰, 刘志刚, 徐桂香, 雷静, 吴久赟

Study on Optimization of Anti-browning Technology of Heat Pump Drying Seedless Green Raisins by Response Surface Methodology

LIAN Weijia, CHEN Ya, HAN Chen, LI Haifeng, LIU Zhigang, XU Guixiang, LEI Jing, WU Jiuyun

表4 不同排潮时间下葡萄干色泽变化

Table 4 Effect of tide time on raisin color

排潮时间 Tide discharge time (min)	L^*	a^*	b^*	△E^*	BI
1	21.19 ± 0.99^a	-10.19 ± 0.15^a	11.73 ± 0.35^a	26.28 ± 0.93^a	30.74 ± 1.91^a
2	20.70 ± 0.31^a	-10.13± 0.29^a	11.43 ± 0.18^ab	25.73 ± 0.29^a	29.65 ± 2.17^a
3	19.39 ± 0.31^b	-10.25 ± 0.47^a	10.82 ± 0.18^c	24.46 ± 0.51^b	26.47 ± 1.77^a
4	20.18 ± 0.20^ab	-10.31 ± 0.23^a	11.07 ± 0.14^bc	25.22± 0.31^ab	26.73 ± 0.55^a
5	21.07 ± 0.26^a	-10.20 ± 0.40^a	11.47 ± 0.18^ab	26.07 ± 0.39^a	28.76 ± 1.56^a