Table 6: The main signals present in 13C NMR functional groups of HYOOA and OLHYOOD.

δ (ppm) of HYOOAaδ (ppm) of OLHYOODbAssignment

25.76–34.3825.75–34.37Aliphatic Carbons
64.4164.37–OH Alcohol
127.90–130.57129.61–130.46–CH=CH– Olefinic carbons
174.01173.93C=O Ester
178.11C=O Carboxylic acid

Notes: 9,12-hydroxy-10,13-oleioxy-12,9-octadecanoic acid (a); 9(12)-hydroxy-10(13)-oleioxy-12(9)-octadecanoate (b).