논문 상세보기
pp.148-153
감 꽃잎과 꽃받침의 이용가능성을 검토하고자, 꽃잎과 꽃받침의 화학성분 분석과 이들을 스팀처리 후 건조(열풍, 동결), 분쇄하여 제조한 분말의 열수 침출차의 품질특성을 조사하였다. 꽃잎과 꽃받침의 수분, 조단백질, 조지방 및 탄수화물 함량은 유의적인 차이가 없이 평균적으로 84.8%, 0.4%, 0.3%, 13.7%를 각각 나타내었으나, 조회분 함량은 유의적인 차이를 보이며 0.5%와 1.1%를 각각 나타내었다. 꽃잎과 꽃받침의 비타민 C 함량은
The chemical components of flesh persimmon flowers (petal and calyx), and the qualify of hot-water extracts (teas) prepared from powders of these flower parts, were investigated In flesh petal and calyx, the contents of moisture, crude protein, crude lipid, and carbohydrate were 84.8% 0.4% 0.3% and 13.7% respectively. The values were not significantly different when the two tissues were compared. In petal and calyx respectively, the crude ash values were 0.5% and 1.1% of flesh weights, the vitamin C content were 192.3mg% and 392.7ng%, the flavonoid levels were 98.4 mg% and 355.2mg% and the carotenoid content were 0.8mg% and 3.8mg%. Hot air and freeze drying methods applied to petals, prior to powder preparation, did not affect the levels of soluble solids or soluble annins. Extract from calyx had higher L values, higher values, more soluble tannins, greater 1,1-diphenyl-2-picrylhy-drazylradical-scavenging activities, me lower pH values, than did exracts from petal. Fructose and glucose were higher in petal extract than in calyx extract, but sucrose was higher in calyx extracts. Extract of freeze-dried powdered petals had significantly higher free sugar levels than did exracts from petals dried with hot air. The major organic acids in extracts were citric acid, oxalic acid, and malic acid. The levels of organic acids were inversely related to free sugar levels in all flower parts and after all drying methods tested. Sensory tests of aroma, taste and overall acceptability yielded scores above medium for all teas, regardless of the flower part powdered, or the drying method used. The results show that the petal and calyx of persimmon may be used to make tea and perhaps other foods.
