Near-infrared reflectance spectroscopy (NIRS) technology can be a powerful analytical technique for the assessment of plant starch, but generally samples need to be freeze-dried and ground. This study investigated the feasibility of using NIRS technology to quantify starch concentration in ground and intact grapevine cane wood samples (with or without the bark layer). A partial least squares regression was used on the sample spectral data and was compared against starch analysis using a conventional wet chemistry method.
Dambergs, R., Jones, J., Eyles, A., Close, D. C., Claye, C., & Rodemann, T. (2020). Prediction of starch reserves in intact and ground grapevine cane wood tissues using near‐infrared reflectance spectroscopy. Journal of the Science of Food and Agriculture. https://doi.org/10.1002/jsfa.10253