Black garlic is a processed garlic product that is prepared
by heat treatment of the raw garlic at high temperature under
controlled humidity for more than 1month. Black garlic products
have emerged as one of the fastest-growing health-oriented
food product in Korean market with the growing
awareness of the health benefits of garlic (Bae, Cho, Won,
Lee, & Park, 2012). Moreover, thermal processes are commonly
used in food manufacturing. One of the important
objectives of thermal processes is to raise the sensory quality
of foods, their palatability and to extend the range of colours,
tastes, aromas and textures in food (Capuano & Fogliano,
2011). In addition, heating processes lead to the formation
of biological compounds that are not originally present in
food. However, influences of thermal processes on the concentration
of individual flavonoids and phenolic acids in garlic
are unknown. Therefore, the objective of the present study
was to measure the content of phenolic compounds (total
amount as well as individual flavonoids and phenolic acids)
in garlic and to analyze the influence of thermal processes
on garlic.