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NTIS 바로가기한국식품저장유통학회지 = Korean journal of food preservation, v.23 no.4, 2016년, pp.576 - 584
강혜림 (제주대학교 차세대융복합과학기술협동과정) , 고소예 (제주대학교 차세대융복합과학기술협동과정) , 류지연 (제주대학교 생명공학부) , 오스만 아흐메드 (제주대학교 차세대융복합과학기술협동과정) , 이창규 ((주)제키스) , 임지희 ((주)제키스) , 김현아 ((주)제키스) , 임근형 ((주)제키스) , 김소미 (제주대학교 차세대융복합과학기술협동과정)
In this study, antioxidant activities and physicochemical properties of chocolate fermented with Lactobacillus plantarum CK10 were investigated. The pH level decreased from
핵심어 | 질문 | 논문에서 추출한 답변 |
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유산균은 식품에서 어떤 역할을 하는가? | 현재까지 많은 연구들을 통해 발효 식품의 생리 활성에 관한 기능이 밝혀졌으며(1-4), 이를 바탕으로 여러 발효 식품들이 건강기능성 식품으로 주목받고 있다. 유산균은 식품 발효를 일으키며 발효 식품 특유의 풍미와 향, 식품의 우수한 보존성 및 생리적 기능성을 부여할 뿐만 아니라,probiotics로 작용함으로써 유당불내증의 완화작용, 정장작용, 병원성세균의 생육억제 작용, 콜레스테롤 저하작용, 항암작용 등 다양한 질병의 예방과 치료에 기여한다고 보고되었다(5-10). 참살이 열풍으로 인하여 건강보조식품에 대한 관심이 증가하면서 발효 음식들이 다시금 주목을 받고 있으며, 특히 발효 식품 및 발효 화장품은 참살이의 상징적인 키워드로서 많은 소비자로부터 긍정적으로 평가되고 있다(11). | |
초콜릿이란 무엇인가? | 특유의 향기와 풍미로 인해 폭넓은 연령층이 선호하여오랜 시간동안 많이 소비되고 있는 대표적인 기호 식품인 초콜릿(chocolate)은 테오브로마 카카오나무(Theobromacacao)의 카카오 종자를 원료로 하여 설탕, 우유, 버터 등 다양한 식품원료를 가하여 가공한 것으로, 코코아 가공품인 코코아 매스, 코코아 버터, 코코아 분말 등에 당류와 유가공품 및 식품 첨가물 등을 혼합하고 성형함으로써 전체 코코아 고형분 35% 이상, 또는 코코아 버터 18%, 무지 코코아 분말 14% 이상의 건조물을 말한다(15). 초콜릿의 주요 원료인 카카오에는 활성산소 생성을 억제하는 기능을 가진 폴리페놀 성분이 함유되어 있어 면역력을 키워주고, 산화스트레스를 감소시킴으로써 노화방지에도 효과가 있다고 알려져 있다. | |
Lactobacillus plantarum CK10을 활용하여 초콜릿 발효 시 항산화 활성능은 어떠한가? | 폴리페놀 함량은 발효 산물의 생성이 활발히 일어나고 있을 것으로 예상되는 발효 8시간에서 약간 증가하였으나 대체로 발효 전후 간유사한 함량이 확인되었으며, 플라보노이드 함량 또한 발효 전후가 유사하게 유지되었다. 항산화 활성의 지표로DPPH 라디칼, ABTS 라디칼, Alkyl 라디칼에 대한 소거능을 측정하였을 때, 발효가 진행되어도 초콜릿의 우수한 라디칼 소거능이 유지됨을 확인하였다. GC-MS에 의한 성분분석을 수행하였을 때, 발효 시간이 지남에 따라 lactic acid의 성분비가 증가하는 것을 확인하였다. |
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