Page 97 - Natural Antioxidants, Applications in Foods of Animal Origin

76 Natural Antioxidants: Applications in Foods of Animal Origin
VetBooks.ir reaction contribute to the antioxidative activity. Thus, the very strong anti-

oxidative activity of the roasted oil might result from the synergistic effect
of the combination of such effective factors as sesamol produced from sesa-
molin, γ-tocopherol, sesamin, and roasted products like melanoidin (Fukuda
et al., 1986b; Koizumi et al., 1996; Fukuda et al., 1996). It has also been
shown that when foodstuff covered with wet material is fried in roasted seed
oil, as in the case of Japanese tempura, sesamol is produced by the splitting
of sesamolin, resulting in the formation of a strong antioxidative coating on
the fried food (Fukuda et al., 1986b).

2.14.3 FOOD APPLICATIONS OF SESAME LIGNANS

There are various forms and methods of using sesame seed and oil in Asian
countries, particularly in China, Korea, and Japan, and people in these coun-
tries enjoy many kinds of foods containing sesame seed and oil with superb
taste and flavor. However, the use of sesame in the Western countries is
limited in variety and sesame is utilized mostly as topping on bread and
biscuits, with low consumption. In this respect, it will be necessary to develop
various sesame foods which will suit many people’s tastes throughout the
world. For example, one recommended form of sesame may be used in salad
dressing or seasoning containing ground sesame seed and oil, which can be
used with various vegetables. This use of sesame is delicious in taste and has
good digestibility with high nutritional value in combination with sesame
lignans and various vegetable components (Namiki, 2007).

2.15 ORYZANOL

Rice has been widely cultivated as one of the major food resources and
remains as staple food. With the advancement in rice milling technology,
by-products of rice milling such as rice bran is being produced. Rice bran
contains about 10–24% of oil which can be commercially utilized to produce
rice bran oil for edible as well as cosmetic purposes. Rice bran oil is loaded
with bioactive compounds such as γ-OZ, tocopherols, tocotrienols, PS,
and so forth, which contribute to the excellent stability and functionality
of rice bran oil. γ-OZ is a lipid soluble antioxidant/nutraceutical/bioactive
compound uniquely present in rice bran and rice bran oil. It has been widely
used in foods and cosmetics around the world. It is registered as a medicine
in Japan and South Korea. γ-OZ is a naturally occurring component in rice