Among problems studied by the Optical Division of The National Institute of Industrial Technology (INTI) in Argentina are efforts related to the food industry. A review of the most relevant projects includes: basic research on non-enzimatic browning, corned-beef, sausage meat, fish, wheat products (semoline, semoline noodles, and flour), tomatoes, and products derived therefrom, apples, apple juice, and yerba maté (Ilex paraguariensis or Ilex theazans). Some discussion is given in each case.