찹쌀가루를 첨가한 약과의 특성 및 저장성

서지정보

· 발행기관 : 한국식생활문화학회
· 수록지 정보 : 韓國食生活文化學會誌 / 7권 / 3호
· 저자명 : 이효순, 박미원, 장명숙

영어초록

This investigation was undertaken for the purpose of studying the quality and acceptability during storage at room or refrigerator temperature of Yackwa containing waxy rice flour substituted for 0,10,30,50,70% of the wheat flour. The storage periods were 0,15,30 and 45 days. Chemical composition, composition of fatty acids, and value, and peroxide values of Yackwa were measured. Sensory evaluation was done by a panel of 5 judges majoring in food and nutrition. The evaluation was repeated 4 times. Objective evaluation was done by rheometer and color difference meter. Chemical composition of Yackwa were 5.9~6.8% for moisture, 3.43~4.09% for crude protein, 22.35~27.65% for crude fat, 0.27~0.31% for ash, 15.6~18.4% for fructose, 10.6~13.7% for glucose, 0.34~1.0% for sucrose, and 0.79~2.37% for maltose, respectively. Fatty acid contents of Yackwa were 10.54~10.73% for palmitic acid, 4.12~4.18% for stearic acid, 25.8~26.9% for oleic acid, 51.6~52.1% for linoleic acid, and 0.27~0.34% for linolenic acid, respectively. Acid value and peroxide value of Yackwa during storage showed little change. As a result of sensory evaluation for Yackwa made various levels of waxy rice flour, there were no significant differences in most of characteristics between the samples supplemented with waxy rice flour to 30% of wheat flour at 0.01% level. By the color difference meter, the value of L (lightness) and b (yellowness) were increased by increasing the amounts of waxy rice flour, however, there were no significant differences at 0.1% level between the samples supplemented with waxy rice flour to 30% of wheat flour, on the other hand, the value of a (redness) was decreased by increasing the amount of waxy rice flour. In the textural characteristics, brittleness, and chewiness were increased by increasing the amounts of waxy rice flour, and by lengthening the storage period, on the other hand, resilience and cohesiveness showed vice versa. In the correlation coefficient between sensory characteristics and mechanical characteristics, overall acceptability in sensory evaluation correlated significantly with cohesiveness, chewiness, and the values of L, a, and b in mechanical test in most of samples(p〈0.001).

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