摘要

Near-infrared spectroscopy (NIRS) is a well-established technique for determining the components of foods. Sample preparation For NIRS is easy, making it suitable for breeding and/or quality evaluation, for which a large number of samples should be analyzed. We aimed to assess the feasibility of NIRS to estimate parameters that seem to influence consumers%26apos; perception of the seed coat of common beans: dietary fiber (DF), uronic acids (UA), ashes, calcium, and magnesium. We used reference methods tu analyze ground seed coats of 90 common bean samples with a wide range of genetic variability and Cultivated at many locations. We registered the NIR spectra on intact beans and ground seed coat samples. We derived partial least-squares (PLS) regression equations from a set of calibration samples and tested their predictive power in an external validation set formactt beans, only RER values for ashes and calcium are good enough for very rough screening. For ground are good enough for screening. RPD and RER values for ashes (3.49 and 14.09, respectively) and calcium (3.57 and 12.70, respectively) enongh fonsbreening. RPD and RER values for DF (2.60 and 9.15, respectively) and RER values for magnesium (6.57) alsoenable rougli screening. A poorer correlation was achieved for UA. We conclude that NIRS can help in common bean breeding rcsenrch and quality evaluation.

  • 出版日期2012-1-25