J Agric Food Chem. 1998 Jan 19;46(1):206-210. Effects of Microwave Heating on the Loss of Vitamin B(12) in Foods. Watanabe F, Abe K, Fujita T, Goto M, Hiemori M, Nakano Y. Source Department of Food and Nutrition, Kochi Women’s University, Kochi 780, Japan, and Department of Applied Biological Chemistry, Osaka Prefecture University, Sakai 593, Japan. [...]