“Sujeonggwa” is a traditional korean beverage made from dried persimmon, cinnamon, and ginger and is oftengarnished with pine nuts. The purpose of this study was to investigate changes in the ingredients, recipes, and processingof “sujeonggwa” in Korean cookbooks published since 1400. The name sujeonggwa is derived from jeonggwa. In the early1600s, sujeonggwa was used in ancestral rites and as a reception beverage, although we don't know its cooking method.According to the literature of the early 1800s, sujeonggwa was made from various fruit ingredients such as pear and yuzu.But since the late 1800s, it has been mostly made from dried persimmon based on ginger and cinnamon boiled with water.Garyeon-sujeonggwa is made with lotus leaf while japkwa-sujeonggwa is made with pear and yuzu. Japkwa-sujeonggwa issimilar to hwachae in terms of ingredients and cooking method.

본 연구는 감마선 조사된 분말수정과의 저장 중 관능적 품질특성 변화 및 돌연변이원성을 평가하고자 실시되었다. 미생물 분석결과 멸균을 위한 최소선량은 약 4.5 kGy인 것으로 확인되었다. 감마선 조사된 시료들의 관능평가를 실시한 결과 조사선량이 증가할수록 모든 평가항목에 감소하는 경향이었으며, 색도의 변화를 평가한 결과 감마선 조사선량이 증가함에 따라 명도()는 유의적으로 증가하고 적색도() 및 황색도()는 유의적으로 낮아지는 경향을 나타내었다.