کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4518882 1322803 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of grape flesh texture by an acoustic vibration method
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Evaluation of grape flesh texture by an acoustic vibration method
چکیده انگلیسی

Destructive acoustic vibrations produced by probe penetration were measured by a texture measurement device to clarify the characteristic flesh texture of nine grape cultivars and to examine methods for quantitative evaluation of grape flesh texture. The texture index (TI) is based on the energy density between 10 Hz and 3.2 kHz and was calculated using signals obtained with a piezoelectric sensor attached to a wedge-tipped probe. Using this index, we successfully classified nine grape cultivars according to flesh texture as crisp, non-crisp, or intermediate. The breaking force measured by a conventional puncture test did not identify these three types of texture. The breaking force was correlated with the TI calculated using 0–50 Hz vibrations but not with that calculated using the 10–3.2 Hz vibrations. This suggests that the former represents flesh firmness, and TI values measured at frequencies greater than 10 Hz evaluate characteristic textures of grape flesh that could not be evaluated using a load sensor installed in a conventional stress–strain analyzer.


► Acoustic vibrations were measured to characterise flesh texture of nine cultivars of grape.
► A texture index based on energy density was calculated using signals from a piezoelectric sensor attached to a probe.
► Nine grape cultivars were successfully classified according to flesh texture as crisp, non-crisp, or intermediate.
► The breaking force measured by an intrusive method did not identify these 3 types of texture.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Postharvest Biology and Technology - Volume 62, Issue 3, December 2011, Pages 305–309
نویسندگان
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