TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Knoblich, Mona A1 - Al Ktash, Mohammad A1 - Wackenhut, Frank A1 - Jehle, Volker A1 - Ostertag, Edwin A1 - Brecht, Marc T1 - Applying UV hyperspectral imaging for the quantification of honeydew content on raw cotton via PCA and PLS-R models JF - Textiles N2 - Cotton contamination by honeydew is considered one of the significant problems for quality in textiles as it causes stickiness during manufacturing. Therefore, millions of dollars in losses are attributed to honeydew contamination each year. This work presents the use of UV hyperspectral imaging (225–300 nm) to characterize honeydew contamination on raw cotton samples. As reference samples, cotton samples were soaked in solutions containing sugar and proteins at different concentrations to mimic honeydew. Multivariate techniques such as a principal component analysis (PCA) and partial least squares regression (PLS-R) were used to predict and classify the amount of honeydew at each pixel of a hyperspectral image of raw cotton samples. The results show that the PCA model was able to differentiate cotton samples based on their sugar concentrations. The first two principal components (PCs) explain nearly 91.0% of the total variance. A PLS-R model was built, showing a performance with a coefficient of determination for the validation (R2cv) = 0.91 and root mean square error of cross-validation (RMSECV) = 0.036 g. This PLS-R model was able to predict the honeydew content in grams on raw cotton samples for each pixel. In conclusion, UV hyperspectral imaging, in combination with multivariate data analysis, shows high potential for quality control in textiles. KW - UV hyperspectral imaging KW - pushbroom KW - cotton KW - honeydew KW - sugar KW - principal component analysis (PCA) KW - partial least squares regression (PLS-R) Y1 - 2023 UN - https://nbn-resolving.org/urn:nbn:de:bsz:rt2-opus4-46379 SN - 2673-7248 SS - 2673-7248 U6 - https://doi.org/10.3390/textiles3030019 DO - https://doi.org/10.3390/textiles3030019 VL - 3 IS - 3 SP - 287 EP - 293 S1 - 7 PB - MDPI CY - Basel ER -