• 한국식품조리과학회지
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• 제21권4호
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• pp.433-439
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• 2005

Soybean is an important plant as it is the source of protein and oil as well as various phytochemicals that are related with biological activity. Over the past decades, scientists have conducted considerable research on the physiological properties of soybeans, especially isoflavones, which are the characteristic components in soybeans. However, there is no research on the properties or the bio-functionality of soybean leaf. Jangachi and kimchi are two of the traditional special dishes of Gyungsang Province in Korea which we made from soybean leaves. Depending on the recipe, green or yellow soybean leaves are used for the preparation of these two side dishes. We compared the antioxidative activity and measured the contents of isoflavones, total phenol, chlorophylls, carotenoids, and vitamin C in the ingredients (green and yellow soybean leaf) and the final side dishes (jangachi and kimchi). We Int report that isoflavones were contained in soybean leaf and that jangachi had the highest isoflavone contents among the samples. Yellow soybean leaf contained higher isoflavones than green soybean lear and kimchi. From the TEAC assay results, the sequence or antioxidative activities was yellow soybean leaf > soybean leaf jangachi > green soybean leaf > soybean leaf kimchi. The sequence was the same with total phenol contents, indicating that antioxidative activity is highly related with total phenol level. Chlorophylls, carotenoids and vitamin C existed abundantly in green soybean leaf. In conclusion, soybean leaf could be a good material for health due to the presence of isoflavones and the other useful antioxidants mentioned above.

• 한국식품위생안전성학회지
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• 제21권2호
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• pp.92-99
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• 2006

전북 순창지역의 고추장민속마을에서 생산한 장아찌 제품의 품질을 균일화하기 위한 기초 연구로서 10품목의 장아찌 제품 90종을 수집하여 이화학적 특성을 비교하였다. 감, 마늘, 오이, 무, 더덕, 매실장아찌는 고추장으로 버무렸으며, 깻잎장아찌는 된장으로, 울외장아찌는 주박으로, 고추장아찌는 된장과 간장으로 버무렸다. 장아찌 제품의 수분 함량, pH 및 총산함량은 원료의 특성에 따라 차이가 있었다. 당도는 $22.10{\pm}3.04$(간장고추) - $55.53{\pm}7.67$(마늘장아찌) $^oBrix$로서 비교적 높았으며, 고추장으로 절임한 경우가 된장이나 간장 절임보다 높았다. 염도는 $3.56{\pm}1.11$(매실장아찌) - $9.15{\pm}6.35%$(간장고추)로서 매우 높았으며, 간장으로 절임한 제품에서 높았다. 경도는 제품에 따른 차이가 매우 컸으며, 총균수는 $5.62{\pm}0.10$(간장고추) - $6.83{\pm}0.55$ log CFU/g(된장깻잎)로서 비슷하였다. 결론적으로, 제품의 품질 균일화와 함께 염도가 높은 장아찌 제품들의 염도를 낮추는 제조 방법에 대한 연구의 필요성이 제기되었다.