摘要:
以黑皮果蔗"拔地拉"为试验材料,研究鱼腥草、丁香、高良姜、藿香、白藓皮等中草药制剂的保鲜效果。结果表明:常温下,包装处理的失水率低于未包装的,贮藏8d时,包装平均失水(0.53±0.187)%,而未包装的为(10.50±0.397)%;处理8d处理B、处理E切面仍正常。冷藏(0~4℃)处理40d时,处理A、处理B、处理C、处理D切面正常,而处理CK、处理E发生劣变。冷藏48d后,处理B、处理D的维生素C含量分别为(437.9±35.79)、(432.8±30.89)μg·mL-1,降幅低于其他处理。冷藏的鲜切果蔗POD活性在贮藏前期会缓慢上升,24d后各处理过氧化物酶活性急剧增加,至40d,处理B、处理D过氧化物酶活性分别为(1.314±0.056)、(1.600±0.047)U·min-1·g-1,而处理CK高达(2.305±0.041)U·min-1·g-1。说明中草药制剂在一定程度上能有效的抑制POD活性,延缓果蔗发生褐变、腐坏,从而达到延长保鲜期的目的。
关键词:
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果蔗 /
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保鲜 /
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维生素C /
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过氧化物酶
Abstract:
The experiment of fruit sugarcane preservation was conducted with the extraction of Chinese herb Houttuynia, Cloves,Galangal,Agastache,and Dictamnus albus as treatment A,B,C,D and E.Results showed that the loss of moisture content was (0.53±0.187)% with packaging less than that without package (10.50±0.397)% while fruit sugarcanes being preserved at room temperature for 8 d.With store temperature at 0-4 ℃ for 40 d,the sectioning surface of treated sugarcanes observed normal in groups of treatment A,B,C and D except treatment E and CK. After the preservation for 48 d,the content of vitamin C in treatment B and D was(437.9±35.79)μg· mL-1 and(432.8±30.89 )μg· mL-1 respectively,the decreasing range of which was less than that in other treatments. At the same storage temperature,the POD activity of preserved fresh sugarcanes observed with a smoothly increasing in early stage,then rising rapidly after 24 d.When reaching to the 40 d of preservation,the POD activity in treatment B and D was(1.314±0.056)U·g-1·min-1 and (1.600±0.047) U·g-1·min-1 ,respectively,and in CK was(2.305±0.041) U·g-1·min-1 . The results indicated that the POD activity of fruit sugarcane could be inhibited effectively with the preservation of Chinese Herb extractions,so that delaying of its corrupt and brownness.
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