38 



WATER-SOLUBLE ORGANIC ACIDS 



Table 1. Continued 

 Acid 



COOH 

 I 

 HCOH 

 I 

 HOCH 

 I 

 COOH 



D-tartaric 



COOH 

 I 

 COOH 



oxalic 



8 



HC CH 



HOOC-C C-COOH 







chelidonic 



CHO 

 I 

 COOH 



glyoxylic 



OH 



I 

 CH3— C— COOH 



H 



lactic 



CHoOH 



I 



COOH 



glycolic 



COOH 



I 



CH, 

 I 

 COOH 



Source 



Vitis spp. 



Oxalis spp. 



Chelidonium majus 



Solanum tuberosum 



Daucus carota 



Medicago spp. 



malonic 



many Leguminosae 



