he purpose of this presents is to investigate, using natural food extracts(Green tea; Camellia sinesis, Du'chung; Eucommia ulmoides Oliver, Eu sung cho; Houttuynia cordata Thunb, Sam back cho; Saurus Chinensis, Baek hwa sa seal cho; Oldenladia diffusa Roxb., Laver; Porphyra tenera, Sea mustard; Undaria pinnatifida and Sea staghorn; Condium fragile) and juices(Sweet pepper; Capsicum annuum var. angulosum, Kale; Brassia oleracea var. acephala, Cucumber; Cucumis satiuus, Onion; Allium cepa, Tomato; Lycopericon esculentum, Maesil; Prunus mume, Plum; Prunus salicina and Grape; Vitis spp.), the effect of natural plant components on the nitrite-scavenging under the different levels of pH. From the above mentioned extracts and juices, tl1i; content of vitamin C was detected, containing 65.1∼77.1 ㎎/100 g, at the highest level in the Green tea, and followed by vegetables and fruits in order. The nitrite scavenging effect of teas, medicinal plants, and seaweed extracts, in the reaction system under the condition of pH 1.2, were 57.0∼100%, 50.0∼100%, and 18.0∼99.0%, respectively. Especially, the nitrite was scavenged to the level of 100%1 when 10 ㎖ of kale and 5 ㎖ of maesil juice