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Preparation of Barley Leaf Powder Tea and Its Quality Characteristics

보리잎 분말차의 제조와 그 품질특성

  • Kim, Dong-Chung (Dept. of Food Science, Suncheon First College) ;
  • Kim, Dong-Won (Myoungsul Co., Ltd.) ;
  • Lee, Sung-Dong (Dept. of Food and Nutrition, College of Health Science, Korea University) ;
  • In, Man-Jin (Dept. of Human Nutrition and Food Science, Chungwoon University)
  • Published : 2006.07.31

Abstract

This study was carried out to establish the manufacturing process of barley leaf powder tea. The optimal manufacturing process among many trials was determined with sensory evaluation. Finally established process and operation conditions were as follows: pretreatment (cutting and washing), steaming ($100^{\circ}C$, 30 sec), primary drying and roasting ($130^{\circ}C$, 40 min), rolling (RT, 25 min), middle drying and roasting ($60^{\circ}C$, 30 min), final drying and roasting ($55^{\circ}C$, 25 min), drying ($60^{\circ}C$, 20 min), roasting ($85^{\circ}C$, 20 min), and powdering (120 mesh). The barley leaf powder tea produced by this process mainly consisted of dietary fiber (33.8%), amino acids (12.9%), minerals (4.7%) and ${\beta}-carotene$ (6.9 mg%).

다양한 생리활성을 함유한 보리잎을 이용하여 관능적으로 우수한 보리잎 분말차를 제조하는 방법을 개발하고 분말차의 기능성 성분함량을 분석하였다. 다양한 실험조건으로 보리잎차를 제조한 후 관능적으로 우수한 제조조건을 선발하였다. 그 결과 보리잎 분말차를 제조하는 공정은 보리잎을 절단, 세척하는 전처리 공정, $100^{\circ}C$에서 30초간 가열하는 증열공정, $130^{\circ}C$에서 40분간 처리하는 조유공정, 실온에서 25분간 처리하는 유념공정, $60^{\circ}C$로 30분간 덖음하는 중유공정, $55^{\circ}C$에서 25분간 재덖음하는 정유공정, $60^{\circ}C$로 20분간 건조하는 건조공정, $85^{\circ}C$에서 20분간 회전 덖음하는 가향공정 및 분쇄공정으로 최적화되었다. 이상의 방법으로 제조된 보리잎 분말차는 식이섬유 33.8%, 아미노산 12.9%, 무기질 4.7%, ${\beta}-carotene$ 6.9 mg% 등이 함유되어 있었다.

Keywords

References

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