Thin-Layer Chromatography Profiles of Non-Commercial Turmeric ( Curcuma longa L.) Products Obtained via Partial Hydrothermal Hydrolysis

This study verifies an alternative use of waste turmeric from extraction processes via partial-hydrothermal hydrolysis, which provides partial hydrolyzed-deflavored and depigmented turmeric (PHDDT) and turmeric hydrolysates (TH). Thin-layer chromatography was used to fingerprint and evaluate the chemical compositions of these products in terms of phenolics, antioxidants, volatiles and sugars, which verified the possibility of adding value to these waste products. Reaction temperature variations influenced the quality of the analyzed compounds. Based on a qualitative approach, PHDDT provided a considerable source of bioactive compounds, while TH samples were determined to be a source of low-chain sugars. The production of various sugars and bioactive compounds from non-commercial turmeric represents a promising alternative for future methodologies that can diminish the quantity of agro-waste and improve economic profitability.