“…In extraction processes, it is necessary to select an analytical method that allows for simple, nondestructive, and on-line measurement of the compounds of interest. In the past three decades, spectroscopic methods have emerged for predicting the content of chemical compounds in a non-destructive, rapid, effective, and efficient way, with high sensitivity, minimal sample requirements, and versatility in analyzing samples from various matrices in an environmentally friendly manner [16,17]. Near-infrared (NIR) spectroscopy, a technique based on the interaction of NIR wave electromagnetic radiation at specific wavelengths with constituent compounds in organic materials such as carbohydrates, proteins, fats, and water, has gained prominence [18].…”