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Quality Characteristics of Ginseng Jung Kwa and Jung Kwa Solution on Jung Kwa Process

인삼정과 제조과정에 따른 품질학적 특성

  • Lee, Ka-Soon (Geumsan Ginseng & Medicinal Crop Experiment Station, CNARES) ;
  • Kim, Gwan-Hou (Geumsan Ginseng & Medicinal Crop Experiment Station, CNARES) ;
  • Kim, Hyun-Ho (Geumsan Ginseng & Medicinal Crop Experiment Station, CNARES) ;
  • Song, Mi-Ran (Dept. of Food and Nutrition, Chungnam National University) ;
  • Kim, Mee-Ree (Dept. of Food and Nutrition, Chungnam National University)
  • 이가순 (충남농업기술원금산인삼약초시험장) ;
  • 김관후 (충남농업기술원금산인삼약초시험장) ;
  • 김현호 (충남농업기술원금산인삼약초시험장) ;
  • 송미란 (충남대학교 식품영양학과) ;
  • 김미리 (충남대학교 식품영양학과)
  • Published : 2009.05.29

Abstract

This study was carried out to investigate the quality characteristics of ginseng Jung Kwa and Jung Kwa solution prepared according to boiling frequency on Jung Kwa process. Ginseng Jung Kwa was made as follows: washed ginseng 8 kg was boiled 5 min with water 16 kg and then boiling water 8 kg was removed. Sucrose 10 kg was added to boiled ginseng soaking in hot water. Jung Kwa was boiled down for 60 min in sugar syrup and soaked for 24 hrs. According to the above process, Jung Kwa was boiled down 5 times. Moisture and pH of Jung Kwa and Jung Kwa solution decreased as the number of boiling time increased and $^{\circ}Brix$ of Jung Kwa solution increased. Crude saponin content of last Jung Kwa (GJ 6) increased to 4 times of raw ginseng. Content of Rf and Rd, component of ginsenosides, increased 77 and 16 times on Jung Kwa, respectively and content of crude saponin on last Jung Kwa solution (GJS 5) was 61.88 mg/g. The other ginsenosides on Jung Kwa decreased. As the number of boiling time increased, concentration of total sugar, glucose and fructose of Jung Kwa and Jung Kwa solution increased. Content of total organic acid on Jung Kwa decreased, especially, succinic acid, main organic acid of ginseng, decreased rapidly. L value of Jung Kwa decreased whereas a and b values increased.

당액에 수삼을 넣고 졸이는 횟수에 따라 얻어진 인삼정과 및 정과액의 품질특성을 조사하여 인삼정과의 품질향상을 위한 기초자료를 얻고자 하였다. 인삼정과는 수삼 8 kg을 2배량의 물 16 kg을 넣어 5분간 삶은 후 삶은 물 8 kg을 제거하고 설탕 10 kg을 넣어서 60분간 졸여서 24시간 당침하는 작업을 5회에 걸쳐 행하였다. 졸임 횟수가 증가함에 따라 정과와 정과액 모두 수분함량과 pH는 낮아졌고 정과액의 $^{\circ}Brix$는 상대적으로 높아졌다. 정과 내 조사포닌 함량은 원료삼의 4배가 증가하였으며 구성사포닌 중 Rf와 Rd의 함량이 많이 증가하여 각각 원료삼의 77배 및 16배가 높아졌으며 기타 검량된 구성사포닌은 감소하였다. 정과액에서도 정과에서와 같은 경향으로 인삼의 사포닌이 용출되어 마지막 정과액(GJS 5)에서 Rf와 Rd 및 조사포닌 함량이 각각 15.05, 3.54 및 61.88 mg/g이었다. 또한 졸임 과정 동안 수분증발에 의하여 정과 및 정과액 모두 총 당 함량은 증가하였으며 졸이는 동안 glucose와 fructose의 함량도 증가하였다. 정과의 유기산 함량은 당을 첨가하여 졸이기 시작하면서 급격하게 감소하였으며, 정과액은 졸임 횟수가 증가할수록 malic acid와 citric acid가 증가하는 경향이었다. 정과 및 정과액의 색도는 졸임 횟수가 증가할수록 L값은 낮아지고 a값과 b값은 증가하는 경향이었다.

Keywords

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