超声波对芦笋贮藏品质和抗氧化能力的影响
详细信息Effect of ultrasound waves on quality and antioxidant activity of asparagus during storage
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摘要: 研究不同超声波频率(20、60、100kHz)处理对芦笋贮藏品质和抗氧化能力的影响,分析贮藏过程中呼吸速率、色泽、硬度、总酚、抗坏血酸、抗氧化力、霉菌和细菌总数的变化。结果表明:超声波能有效地降低细菌与霉菌数量,保持芦笋的硬度,抑制呼吸速率的升高,提高贮藏中期总酚含量、抗坏血酸水平,但对色泽无显著影响。随着贮藏时间的延长,超声波对芦笋的效果逐渐消失。超声波具有潜在的应用背景。Abstract: The effect of ultrasound waves (20, 60 and 100kHz) on quality and antioxidant activity were investigated, while respiration rate, color, hardness, total phenolic content, ascorbic acid, antioxidant activities, bacterial count and mold counting were evaluated.The results indicated that ultrasound waves kept hardness and the contents of ascorbic acid, promoted accumulation of total phenolics in the middle stage of storage, reduced the numbers of bacteria and mould of asparagus, inhibited the respiratory rates, but had no significant effect on color.The longer the time of after storage, the worse the effect of ultrasound waves on asparagus.Ultrasound wave was an effective integrated freshness-keeping technique for extending storage life.
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[1] 王静, 韩涛, 李丽萍, 等.超声波处理对不同品种桃果实贮藏品质变化的影响[J].石河子大学学报, 2006, 24 (6) :732-735. [2] 南京大学.无机及分析化学实验[M].北京:高等教育出版社, 2000. [3] 魏云潇, 刘振峰, 叶兴乾, 等.纳他霉素对芦笋品质及内源游离态多胺含量的影响[J].农业机械学报, 2010, 41 (7) :128-131, 44. [4] Slinkard K, Singleton V L.Total phenol analyses:Automation and comparison with manual methods[J].American Journal of Enology and Viticulture, 1977, 28:49-55.
[5] Leong L P, Shui G.An investigation of antioxidant capacity of fruits in Singapore markets[J].Food Chemistry, 2002, 76:69-75.
[6] Brand-Williams W, Cuvelier M E, Berset C.Use of a free radical method to evaluate antioxidant activity[J].Lebensmittel Wissenschaft and Technologie, 1995, 28:25-30.
[7] Benzie I F F, Strain J J.Ferric reducing/antioxidant power assay:direct measure of total antioxidant activity of biological fluids and modified version for simultaneous measurement of total antioxidant power and ascorbic acid concentration[J].Methods in Enzymology, 1996, 299:15-27.
[8] 张元标, 李文权, 王清池, 等.超声辐射对海水小球藻的生物效应[J].厦门大学学报:自然科学版, 2001, 40 (3) :653-657. [9] 张妹, 余斐, 王传贵, 等.超声波对红豆杉悬浮细胞生长及紫杉醇释放的研究[J].生物技术, 2001, 11 (2) :14-17. [10] 林影, 高大维, 梁宏, 等.微超声波对脆壁克鲁维氏酵母菊糖酶生产的作用[J].华南理工大学学报, 1997, 25 (10) :110-113. [11] Appel H M.Phenolics in ecological interaction:The importance of oxidation[J].Journal of Chemical Ecology, 1993, 19:1521-1552.
[12] 钟爱国.功率超声波诱导降解水体中乙酞甲胺磷[J].水处理技术, 2001, 27 (1) :47-49.
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