Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Characteristics of Flour Ferment with Seed Mash Containing Wheat Flour Koji and Lactic Acid Bacteria

밀가루 입국과 유산균을 이용하여 만든 Seed mash를 첨가한 발효액종의 특성

  • Lee, Myung-Koo (Department of Applied Biology & Chemistry, KonKuk University) ;
  • Kang, Sang-Mo (Department of Microbiological Engineering, KonKuk University) ;
  • Lee, Si-Kyung (Department of Applied Biology & Chemistry, KonKuk University)
  • 이명구 (건국대학교 응용생물 화학과) ;
  • 강상모 (건국대학교 미생물공학과) ;
  • 이시경 (건국대학교 응용생물 화학과)
  • Published : 2006.06.01
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Abstract

This study was carried out to investigate the components of organic acids and flavour in flour ferment composed of water, flour, seed mash, yeast and lactic acid bacteria. The pH and TTA in the control (flour ferment without seed mash and lactic bacteria) were 5.6 and 2.5, respectively at 6 hrs after culturing; however, those in flour ferment with seed mash and different lactic acid bacteria were 4.63-4.69 and 9.0-9.9, respectively. Organic acid contents were propionic acid 0.09 mg/g, lactic acid 0.06 mg/g and acetic acid 0.04 mg/g in flour ferment without seed mash, whereas lactic acid 0.23-0.27 mg/g, propionic acid 0.21 mg/g, and acetic acid 0.06-0.08 mg/g in flour ferment with seed mash and lactic acid bacteria. Flavour compounds including ethyl capylate, ethyl caproate, ethyl acetate, ethyl caprate and phenylethyl acetate were detected to be high in flour ferment with seed mash and different lactic acid bacteria than in the control. This results show that the use of flour ferment with seed mash and lactic acid bacteria in making bread will enhance bread flavour.

빵의 노화와 풍미 향상을 목적으로 빵 제조시 첨가하기 위하여 제조한 유산균, 효모, seed mash을 첨가하여 배양한 발효액종(flour ferment)의 특성을 조사한 결과는 다음과 같다. Seed mash를 첨가하지 않은 발효액종은 배양 6시간 경과시 pH와 TTA가 각각 5.6 및 2.5이었으며, seed mash 5%와 각기 다른 유산균을 첨가한 발효액종은 pH가 4.63-4.69와 TTA가 9.0-9.9이었다. 4시간 발효시킨 발효액종에 함유된 유기산은 대조구의 경우 프로피온산이 0.09mg/g, 젖산과 초산이 각각 0.06 및 0.04 mg/g 검출되었으며, seed mash와 효모만을 발효시킨 발효액종에서는 프로피온산이 0.21 mg/g, 젖산과 초산이 각각 0.16, 0.06 mg/g, seed mash와 유산균, 효모를 혼합 배양한 발효액종에서는 젖산이 0.23-0.27 mg/g으로 가장 높았으며, 프로피온산이 0.21 mg/g, 초산이 0.06-0.08 mg/g 검출되었다. 발효액종의 향기성분은 seed mash, 효모, 유산균을 혼합 배양한 발효액종에서 ethyl caprylate, ethyl caproate, ethyl acetate, ethyl caprate, phenylethyl acetate등의 에스테르 화합물이 대조구에서 보다 많이 검출되었다.

Keywords

References

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