메밀종자와 메밀나물의 영양성분 및 유용성분을 비교 분석하여, 식품개발 소재로서 메밀나물의 이용성을 증대시키는 기초자료로 삼고자 하였다. 메밀종자를 7일간 발아시켜 메밀나물을 수확한 후, 동결건조하여 분석용 시료로 사용하였다. 건물량 기준으로 메밀나물의 조단백, 조지방, 회분함량은 각각 20.8, 1.3 그리고 2.6%이었다. 메밀나물의 주된 아미노산은 glutamic acid(2,764 mg/100 g)와 aspartic acid(1,698 mg/100 g)이었다. 발아를 통해 tryptophan이 약 1.9배, alanine과 tyrosine이 약 1.8배, histidine이 약 1.7배정도 증가하는 것으로 나타났다. 메밀나물의 주된 지방산은 iinoleic acid(45.9%)와 oleic acid(18.4%)이었다. 메밀종자가 발아되어 메밀나물로 성장하는 가운데 stearic acid(18:0)가 21%, oleic acid(18:1)가 약 50% 감소된 반면 linoleic acid(18:2)와 linolenic acid(18:3)가 각각 1.3배,5.4배 증가하는 현상을 나타내었다 메밀나물의 칼슘함량은 152.0 mg/100 g, 아연 9.9 mg/100 g, 마그네슘 485.0 mg/100 g, 철분 5.4 mg/100 g이었다. 메밀나물의 비타민 A, C and E 함량은 건물량 기준으로 각각 1,180 IU/100 g, 203 mg/100 g 그리고 32.1 mg/100 g이었다. 특히 $alpha$-tocopherol 함량은 메밀종자에 비해 27.5배나 높았다. 메밀나물의 rutin 함량은 343.67 mg/100 g로 메밀종자보다 약 18배 많은 것으로 나타났다.
The chemical components of buckwheat seed and sprout were compared for predicting the usefulness of buckwheat sprout as food materials. The buckwheat sprout was harvested and lyophilized after germination for 7 days. Crude protein, lipid and ash contents of buckwheat sprout were 20.8, 1.3 and 2.6% in dry basis, respectively. Major amino acids of buckwheat sprout were glutamic acid (2,764 mg/l00 g) and aspartic acid (1,698 mg/l00 g). The contents of tryptophan, alanine, tyrosine and histidine of buckwheat sprout were about 1.7 to 1.9 times higher than those of buckwheat seed. Major fatty acids of buckwheat sprout were linoleic acid (45.9%) and oleic acid (18.4%). The contents of stearic acid (18:0) and oleic acid (18:1) were decreased by about 21% and 50%, whereas those of linoleic acid (18:2) and linolenic acid (18:3) were increased by 1.3 and 5.4 times, respectively after germination for 7 days. The mineral contents of buckwheat sprout were 152.0 mg/l00 g for Ca, 9.9 mg/l00 g for Zn, 485.0 mg/l00 g for Mg and 5.4 mg/l00 g for Fe. Vitamin A, C and E contents of buckwheat sprout were 1,180 IU/100 g, 203 mg/l00 g and 32.1 mg/l00 g in dry basis, respectively. Especially, the content of $alpha$ -tocopherol was increased by 27.5 times as compared to that of buckwheat seed. The rutin content of buckwheat sprout was 343.67 mg/l00 g, which was about 18 times higher than that of buckwheat seed.
