Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics

Table 8

The main signals present in ¹³C NMR functional groups of LA, MEOA, and diepoxide LA.

𝛿 (ppm) LA^a	𝛿 (ppm) MEOA^b	𝛿 (ppm) diepoxide LA	Assignment
24.86–29.79	22.69–34.15	22.77–29.44	–CH2–Carbons
—	54.59–57.29	54.61–57.32	() epoxide groups
128.27–130.38	124.02–132.89	—	–CH=CH–Olefinic carbons
180.49	179.32	178.79	C=O Carboxylic acid

Notes: Linoleic acid (a); 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (b).