Journal of the Korean Society of Food Culture (한국식생활문화학회지)

Korean Society of Food Culture (한국식생활문화학회)
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Characteristic and Stability of Lipids in Yackwa at Various Shortening Ratios

쇼트닝 혼합유로 만든 약과의 유지 특성과 유지 안정성

  • Kim, So-Won (Department of Hotel Cookery, Cheju Halla College) ;
  • Kim, Myong-Ae (Department of Food and Nutrition, Dongduk Women's University)
  • 김소원 (제주한라대학 호텔조리과) ;
  • 김명애 (동덕여자대학교 식품영양학과)
  • Published : 2009.06.30
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Abstract

The principal objective of this study was to assess the effects of various ratios of sesame oil to shortening on the characteristics and stability of lipids in Yackwa. The sesame oil to shortening ratios assessed herein were 100:0, 75:25, 50:50, and 1:100. The lipid contents of Yackwa prepared with various shortening ratios ranged from 25.20 to 29.12%. The lipids in these Yackwa consisted primarily of the frying oil (soybean oil), and the oil contents were measured between 84-90%. The fatty acid compositions of the lipids in the Yackwa were unrelated to the ratio of shortening. The fatty acid compositions were as follows: linoleic acid 49.1-51.27%, oleic acid 26.05-26.77%, palmitic acid 10.07-11.71%, linolenic acid 5.51-5.72% and stearic acid 4.51-4.68%. These compositions were similar to that of soybean oil, which was the frying oil used to prepare the Yackwa. The acid value, peroxide value, and carbonyl value of the lipids in Yackwa did not differ with the various shortening ratios used during the storage time. Stability of lipids in Yackwa were mainly effected by frying oil. Our results suggest that shortening should prove useful as a substitute for sesame oil in the preparation of Yackwa.

약과 반죽시 참기름 대용으로 쇼트닝을 이용할 목적으로 쇼트닝의 혼합비율을 달리하여(참기름 100%, 참기름 75%+쇼트닝 25%, 참기름 50%+쇼트닝 50%, 쇼트닝 100%) 약과를 제조하고, 약과 유지의 지방산 조성, 유지함량, 원료유지의 잔존율, 저장 중의 유지산패도(산가, 과산화물가, 카르보닐가)를 측정하여 쇼트닝 약과의 유지안정성을 비교 분석한 결과 다음과 같았다. 1. 약과 반죽의 유지 함량은 9.33%였으나, 튀김 후 시료 구별 약과의 유지함량은 25.20-29.12%로서 아주 높았다. 이들 약과의 유지 구성은 반죽에 첨가되었던 원료유지와 튀김에 사용된 튀김유(대두유)의 비율이 각각 16-10%와 84-90%로서 튀김유가 대부분을 차지하였다. 2. 모든 약과의 지방산 조성은 쇼트닝의 첨가수준에 관계 없이 시료구간에 거의 유사하여 linoleic acid 49.71-51.27%, oleic acid 26.05-26.77%, palmitic acid 10.07-11.71%, linolenic acid 5.51-5.72% stearic acid 4.51-4.68%였으며, 이것은 튀김유(대두유)의 지방산 조성과 유사하였다. 3. 쇼트닝 첨가에 따른 약과의 저장중 산가, 과산화물가, 카르보닐가의 변화는 쇼트닝 첨가가 산가의 증가를 다소 지연시켰으나 과산화물가와 카르보닐가는 시료구간에 차이를 나타내지 않았다. 약과 제조시에 반죽에 첨가되는 유지의 지방산 조성이 크게 다르더라도 약과의 유지 산패도는 큰 차이를 보이지 않았다. 이것은 튀김 과정 중 튀김유가 약과내로 다량 흡유되어 약과반죽의 원료유지보다도 큰 영향을 준 것으로 생각된다. 따라서 쇼트닝은 약과 반죽에 참기름 대용으로 사용될경우 약과의 유지 산패 면에서는 참기름 100% 약과와 차이가 없어 약과 제조시 참기름 대체효과가 있을 것으로 기대된다.

Keywords

References

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