한국식품저장유통학회지 (Food Science and Preservation)

  • 제22권3호
  • /
  • Pages.443-451
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  • 2015
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  • 3022-5477(pISSN)
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  • 3022-5485(eISSN)
한국식품저장유통학회 (The Korean Society of Food Preservation)
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흑찰미 식초 제조를 위한 초산균주 동정 및 품질특성 비교

Comparison of quality properties and identification of acetic acid bacteria for black waxy rice vinegar

  • Lee, Gyeong-Eun (Department of Food Science and Technology, Sunchon National University) ;
  • Kim, So-Mang (Department of Food Science and Technology, Sunchon National University) ;
  • Huh, Chang-Ki (Imsil Institute of Cheese Science) ;
  • Cho, In-Kyung (Department of Food and Nutrition, Nambu University) ;
  • Kim, Yong-Doo (Department of Food Science and Technology, Sunchon National University)
  • 투고 : 2015.03.05
  • 심사 : 2015.04.27
  • 발행 : 2015.06.30
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초록

흑찰미를 이용한 식초를 개발하기 위해 초산생성능이 우수한 초산균을 분리 및 동정하여 균주별로 제조한 식초의 품질특성을 확인한 결과는 다음과 같다. 초산 생성력이 우수한 균주를 선정하기 위해 초산균 분리용 평판배지에 도말하여 8종의 균주를 순수 분리하였으며, 이들 균주와 시판균주 2종의 초산 생성능을 확인한 결과 가장 높게 나타난 시판균주 2종, 분리균주 F-1 및 H-4를 식초 발효 균주로 선정하였다. 분리균주의 종을 확인하기 위해 16S rRNA의 염기서열을 분석한 결과 분리균주 모두Acetobacter 속으로 동정되었으며, F-1 및 H-1 균주를 Acetobacter sp. F-1, Acetobacter sp. H-1으로 명명하였다. 초산균 균주를 달리하여 제조한 흑찰미식초의 산도 변화는 발효가 진행됨에 따라 발효 16일까지 꾸준히 높아지다가 일정한 산도를 유지하였으며 시료구간의 최종 산도는 FV-1 식초의 총산 함량이 7.4%로 가장 높았다. 색도의 경우 L값 75.01~80.11, a값 3.34~3.92, b값 12.84~18.09 범위로 나타났다. 균주별 흑찰미식초의 주요 유기산은 acetic acid으로 나타났으며 총 유기산 함량은 HV-4, FV-1, CV-2 및 CV-1 식초 순으로 나타났다. 총 유리아미노산 함량은 분리균주 F-1 식초가 351.43 mg%으로 함량이 가장 높았으며, 균주 C-2 식초가 247.74 mg%으로 가장 낮은 함량을 보였다. 균주에 따른 흑찰미식초의 관능평가 결과는 분리균주 H-4로 제조한 식초는 전반적으로 낮은 기호도를 보였으며, 분리균주 F-1로 제조한 식초가 향, 색 및 종합기호도에서 가장 높은 기호도를 나타내었다. 이와 같은 결과를 토대로 가장 우수한 기호도를 나타낸 F-1 균주가 흑찰미식초 제조에 적합할 것으로 생각된다.

This study was carried out to investigate the quality characteristics and identification of acetic acid bacteria for black waxy rice vinegar. Eight (8) strains of acetic acid bacteria were isolated for the production of acetic acid and their acidities were then compared with commercial acetic acid bacteria. Among them, F1, H4, and two types of commercial bacteria (four best strains by vinegar zymogen) were selected. After analyzing the 16S rRNA sequence, both F1 and H4 strains were identified as acetobacter genus. Therefore, the F-1 and H-4 strains were named as Acetobacter sp. F-1 and Acetobacter sp. H-4, respectively. Acidity of black waxy rice vinegar during fermentation was steadily increased up to 16 days and the acidity was then constant. Total acidity content was higher when used FV-1 strain. In the results of Hunter's color value of black waxy vinegar, L value was at 75.01 to 80.11, while (+a) value was at 3.34 to 3.92, and (+b) value was at 12.84 to 18.09. The major organic acid of the black waxy vinegar was acetic acid. The total organic acid content was high when used H-4, F-1, C-2 and C-1 strains. The total free amino acid content of the black waxy vinegar by strain was the highest (351.43 mg%) of F-1 vinegar strain, and the lowest (247.74 mg%) of C-2 vinegar strain. A sensory evaluation of black waxy vinegar indicated that F-1 vinegar strain was better than the other samples in aspect of flavor, color, and overall preference.

키워드

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피인용 문헌

  1. 섬애약쑥 주정 추출물로 제조한 발효식초의 품질특성 vol.24, pp.5, 2017, https://doi.org/10.11002/kjfp.2017.24.5.647
  2. 으뜸도라지 식초의 저장기간별 품질 특성 및 항산화 활성 vol.31, pp.4, 2018, https://doi.org/10.9799/ksfan.2018.31.4.549