| 敲击振动无损检测3种梨果实品质参数的研究 |
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| 引用本文： | 屠康,马龙,潘秀娟.敲击振动无损检测3种梨果实品质参数的研究[J].安徽农业大学学报,2005,32(1):50-53. |
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| 作者姓名： | 屠康 马龙 潘秀娟 |
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| 作者单位： | 南京农业大学食品科技学院,南京,210095;蚌埠高等专科学校食品系,蚌埠,23300 |
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| 基金项目： | 教育部留学回国人员科研启动基金
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江苏省自然科学基金
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教育部优秀青年教师资助计划 |
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| 摘 要： | 采用冲击共振法无损检测砀山酥梨、水晶梨和雪梨的采后硬度参数变化,并与插入型破坏实验、可溶性固形物等实验结果进行比较.研究发现冲击共振所测硬度系数可以反映梨的硬度,并且与插入型破坏性实验测得的硬度有较好的正相关性,酥梨、水晶梨和雪梨的相关系数分别为0.930、0.878和0.894.无损硬度系数与梨的可溶性固形物也有较好的负相关性,酥梨、水晶梨、雪梨的相关系数分别为-0.903、-0.922和-0.920.因此,通过冲击振动法可以测定梨的固有频率,进而用硬度系数来判断梨的成熟度.
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| 关 键 词： | 梨 硬度 可溶性固形物 无损检测 冲击响应 |
| 文章编号： | 1672-352X(2005)01-0050-04 |
| 修稿时间： | 2004年5月11日 |
Study on Quality Parameters of Three Varieties of Pears by Acoustic Impulse Response Test |
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| TU Kang,MA Long,PAN Xiu-juan.Study on Quality Parameters of Three Varieties of Pears by Acoustic Impulse Response Test[J].Journal of Anhui Agricultural University,2005,32(1):50-53. |
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| Authors: | TU Kang~ MA Long~ PAN Xiu-juan~ |
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| Institution: | TU Kang~1,MA Long~2,PAN Xiu-juan~1 |
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| Abstract: | Firmness of three varieties of pears (Dangshan, Shuijing and Xue) was determined nondestructively. Acoustic impulse response test, puncture measurement of firmness were studied and related to the soluble solid content (SSC). The results showed that the nondestructive measured stiffness factor positively correlated with destructive measured hardness and the correlation coefficients were 0.930, 0.878 and 0.894 for Dangshan, Shuijing and Xue pears, respectively. The stiffness factor negatively correlated with SSC and the correlation coefficients were -0.903, -0.922 and -0.920 for Dangshan, Shuijing and Xue pears, respectively. The nondestructive method can be used for ripeness detection of pear fruits. |
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| Keywords: | pear firmness soluble solid content non-destructive test acoustic impulse response |
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