• 제목/요약/키워드: fermentation property

검색결과 155건 처리시간 0.024초

유기농 자재의 연용이 토양의 이화학적 성질과 토마토의 생육, 수량 및 체내성분에 미치는 영향 (Effect of Continuous Application of Organic Farming Materials on the Soil Physicochemistry Property and Plant Growth, Yield and Components of Tomato)

  • 오주성;이종성;강경희;김회태;정원복;정순재
    • 한국유기농업학회지
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    • 제9권1호
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    • pp.75-89
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    • 2001
  • This study the effects of the application of organic farming materials on the soil Physicochemistry property and plant growth, yield and components of Tomato were compared with conventional culture. The results obtained from the experiment are summarized as follows : 1. The effect of soil chemical properties after application organic farming materials, The amounts of pH and O.M. in N, P, K treated plot were few of change, To the contrary, fermentation compost and microorganisms fermentation compost treated plot were some increase, Amount of $P_2$$O_{5}$, Ca and K increase in comparison with the N, P, K treated plot. 2. Changes of soil microbial after application organic farming materials, The number of bacteria, actinomycetes and fungi in N, P, K treated plot were appeared definite direction. to the contrary, The number of bacteria and actimycetes in fermentation compost and microorganisms fermentation compost treated plot showed the increased tendency, The number of fungi showed the decreased tendency. 3. Effect of organic farming materials application on the growth and yield of tomato was superior in order of microorganisms fermentation compost plot〉 chemical fertilizers plot〉 fermentation compost plot. especially, chicken manure + microorganisms fermentation compost treated plot was the highest. 4. Effect of organic farming materials application on the components of tomato were not different.

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Property Changes of Salt-seasoned Salmon Roe during Fermentation

  • Kim Sang Moo
    • Fisheries and Aquatic Sciences
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    • 제3권1호
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    • pp.44-48
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    • 2000
  • In order to utilize chum salmon returned in the east coast of Korea, the changes in the properties of Yeonual-jeot (salted salmon roe) fermented at different temperatures were measured for obtaining the basic data for its commercial production. Moisture content of salted salmon roe was significantly lower than raw salmon roe, while other proximate components were in the reverse. pH was constant for 56 days fermentation at $5^{\circ}C$, but decreased with fermentation Reriod at 10 and $15^{\circ}C$. The contents of amino-nitrogen and VBN were almost in constant at $5^{\circ}C$ up to 28 days of fermentation, but increased very slowly at $10^{\circ}C$ and moderately at $15^{\circ}C$. TBA value, and the numbers of total viable cells and lactic acid bacteria increased over all fermentation periods, more at higher fermentation temperatures.

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데침과 열수 침적의 병용 열처리와 trehalose 첨가가 오이 김치의 저장중의 효소 활성의 변화와 관능 검사에 미치는 효과

  • 이혜정
    • 한국식품영양학회:학술대회논문집
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    • 한국식품영양학회 2001년도 동계 학술심포지움
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    • pp.131-131
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    • 2001
  • The enzyme activity and organoleptic properties of Korean pickled cucumber were studies for their changes during fermentation. The Korean pickled cucumber were prepared by blanching and high temperature soaking in salt solution and trehalose treatment The results shelved that the effect of combined heat and trehalose treatment significantly reduced the fermentation rate and softening rate of texture while a rather rapid fermentation was for those pleserved with salt. The effect of trehalose treatment enhenced fermentation and it was significantly reduced softening rate of texture by 2% treatment. The sensory evaluation of Korean pickled cucumber was found that combined heat treatment with blanching and hot solution had a positive effect for reduction of softening of cucumber tissue, however, odor and taste were not significantly affected. This study suggested that combined heat and trehalose treatment might have potential for affording protection against softness of cucumber tissue during the fermentation time.

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숙성기간에 따른 재래 고추장의 유동성 변화 (Flow Properties of Traditional Kochujang : Effect of Fermentation Time)

  • 유병승;최원석;류영기
    • 한국식품영양과학회지
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    • 제28권3호
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    • pp.554-558
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    • 1999
  • Flow properties of traditional kochujang at various fermentation times(0~12 weeks) were determined with rotational cylindrical(RC) and serrated plate plate(PP) viscometer. Magnitudes of consistency index(K) of power law model and Cassson parameters(yield stress and viscosity) measured by PP viscometer were higher than those using RC viscometer. All kochujang samples during fermentation were much shear thinning with values of flow behavior index(n) as low as 0.2~0.34. K value and Casson yield stress measured by PP viscometer had good correlations(r=0.94; r=0.91) with fermentation time. No significant changes in flow model parameters measured by RC viscometer were observed for kochu jang during fermentation. Magnitudes of flow model parameters measured by PP viscometer more closely correlated with fermantation times of kochujang than did RC viscometer.

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Wort Fermentation by Leuconostoc citreum Originated from Kimchi and Sensory Properties of Fermented Wort

  • Delgerzaya, Purev;Shin, Jin-Yeong;Kim, Kwang-Ok;Park, Jin-Byung
    • Food Science and Biotechnology
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    • 제18권5호
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    • pp.1083-1090
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    • 2009
  • Fermentation of wort was investigated with an ultimate goal to develop a fermented beverage rich in prebiotics and functional ingredients as well as desirable in flavors. Wort was fermented with Leuconostoc citreum HJ-P4 originated from kimchi and subjected to sensory descriptive analysis. L. citreum HJ-P4 produced various organic acids (e.g., lactic acid, acetic acid) as well as functional sugars (e.g., mannitol, panose) during wort fermentation. The concentration and ratio of lactic acid and acetic acid were significantly influenced by roasting conditions of malts used for wort preparation and aeration conditions during fermentation. The concentration of mannitol and panose varied depending on the sucrose content of wort and aeration conditions. Sensory characteristics of the fermented worts were clearly differentiated according to the roasting conditions of malts used for wort preparation and aeration conditions during fermentation. These results indicate that metabolite concentration of fermented wort and its sensory properties can be manipulated with roasting conditions of malts and fermentation conditions.

홍삼 첨가에 따른 고추장의 이화학적 특성 변화 (Changes in Physiochemical Properties of Kochujang by Red Ginseng Addition)

  • 신현주;신동화;곽이성;주종재;김선영
    • 한국식품영양과학회지
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    • 제28권4호
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    • pp.760-765
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    • 1999
  • Changes in physiochemical properties of Sunchang sikhe kochujang, the most famous traditional kochujang, by red ginseng addition(1, 2 and 5% red ginseng on the total weight basis) were investigated. Measurements of physiochemical parameters such as reducing sugar content, alcohol content, amino type nitrogen content and color difference value were conducted during fermentation at 25oC for 120 days. Alcohol content was increased from the begining of fermentation, reaching at the highest level after 90 days of fermentation and then slowly reduced. Alcohol content of red ginseng kochujang was generally higher than that of control kochujang after 90 days of fermentation. Crude protein content of control kochujang and red ginseng kochujang were reduced during fermentation whereas amino type nitrogen content were gradually increased during fermentation. Amino type nitrogen content of red ginseng kochujang appeared to be slightly lower than that of the control kochujang. The reduction in amino type nitrogen content of red ginseng kochujang was negatively related to the level of red ginseng addition. Among color difference values, L and b value of both control kochujang and red ginseng kochujang were reduced by 30 days from the begining of fermentation and then started to be increased.

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부추첨가 김치의 발효과정 중 chitinase 활성과 조직감 (Chitinase Activity and Textural Property of Leek Added Kimchi During Fermentation)

  • 김유경;이귀주
    • 한국식품조리과학회지
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    • 제15권2호
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    • pp.102-107
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    • 1999
  • 김치재료들의 chitinase 활성을 측정하고, 부추의 첨가량을 달리한 김치를 제조하여 15$^{\circ}C$에서 9일간의 숙성과정 중 김치의 chitinase 활성과 조직감의 변화를 측정한 결과는 다음과 같았다. 김치의 주요 재료들은 쪽파(특히 잎부분)>마늘>부추>대파(특히 잎부분) 순으로 chitinase 활성을 나타내었다. 김치숙성 중의 chitinase 활성은 김치액이 김치조직 보다 월등히 높게 나타났으며 각 김치시료간의 효소활성 차이도 김치액에서 더 뚜렷하게 나타났다. 김치액에서의 chitinase 활성은 숙성이 진행됨에 따라 점차적으로 감소한 반면, 김치조직에서의 chitinase 활성은 숙성 3일 또는 5일까지 증가한 후 감소하였다. 그러나 김치조직과 김치액 모두에서 대조구보다 부추첨가구가 더 높은 chitinase 활성을 나타내었으며 부추첨가구에서는 부추첨가량이 증가할수록 높은 chitinase 활성을 보였다. 숙성이 진행됨에 따라 모든 시료구에서는 김치조직의 침투관통력은 감소하였으며 부추첨가량에 따른 차이는 미미하였으나 대조구가 숙성 전 기간동안 가장 낮은 침투관통력을 보였다. 이상의 결과를 종합해보면 부추첨가는 김치 숙성 중 부추의 chitinase 활성에 의해 새우젓 등의 키틴질을 분해하여 chitosan을 형성하므로서 김치의 조직을 향상시키는 것으로 생각된다.

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유기농 자재의 시용이 토양의 이화학적 특성과 배추의 생육 및 체내성분에 미치는 영향 (Effect of the Soil Physicochemistry Property and Plant Growth and Components of Chinese Cabbage after Application Organic Farming Materials)

  • 정순재;정원복;김회태;강경희;이종성;오주성
    • 한국유기농업학회지
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    • 제8권3호
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    • pp.131-146
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    • 2000
  • 화학비료와 농약의 대용으로 가축분의 발효퇴비 및 미생물 발효퇴비를 시용하여 토양의 이화학적 성질 변화와 배추의 생육 및 체내 성분변화을 알아보기 위하여 본 시험을 수행하였던바 결과는 다음과 같다. 1. 유기농 자재를 시용한 토양의 화학적 성질을 보면 pH 및 유기물함량은 화학비료 처리구에서는 거의 변화가 없었던 반면 발효퇴비 및 미생물 발효퇴비 처리구에서는 약간 증가하였고, 인산, 칼슘 및 칼리 성분은 발효퇴비 및 미생물 발효퇴비 처리구에서 화학비료 처리구보다 증가하였으며, 특히 계분+미생물 발효퇴비 처리구에서 가장 높았다. 2. 유기농 자재를 시용한 토양의 미생물상의 변화는 화학비료 처리구에서는 세균 및 방선균수는 거의 일정한 경향을 보였고 사상균수는 약간 감소하는 경향을 보인 반면 발효퇴비 및 미생물 발효퇴비 처리구에서는 세균, 방선균 및 사상균수가 모두 증가하는 경향을 보였으며, 특히 미생물 발효퇴비 처리구에서는 세균수가 상당히 증가하였다. 3, 유기농 자재의 시용에 따른 배추의 생육은 화학비료 처리구> 미생물 발효퇴비 처리구> 발효퇴비 처리구순으로 높았고, 체내 NO$_3$$^{-}$ 함량은 내엽보다 외엽에서 많았고, 처리간에는 화학비료 처리구에서 내.외엽 모두 가장 많았으며, 미생물 발효퇴비 처리구에서 다소 적었다. 4. 유기농 자재의 시용에 따른 배추의 체내성분은 처리간 뚜렷한 차이는 나타나지 않았다.

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Fungi-rice bran based Fermentation of Coptis Chinensis and Curcuma Longa Root and its Influence of Silk Dyeing

  • Park, Young Mi;Choi, Jae Hong
    • 한국의류산업학회지
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    • 제15권4호
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    • pp.635-641
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    • 2013
  • This study examined the dye-properties of natural fabrics dyed with Coptis chinensis and Curcuma longa root fermented with fungi. The optimum culture conditions for the fermentation of microorganisms, the relationship between natural dye color and fermentation conditions were investigated. Two different medical herbs (ground to 80-100 mesh in size) were used as a natural dyeing source. Phellinus linteus (P. linteus), which can grow in different media, such as Agarmedium (only agar containing medium), maltose extract agar (MA) and potato dextrose extract agar (PDA) culture media, were isolated from the medium. P. linteus was confirmed to be the optimum microorganism for the fermentation of Coptis chinensis and Curcuma longa, and the MA medium was confirmed to be the best for culturing. When using the microorganism as the fermenting agent, $32^{\circ}C$ was found to be the optimum fermenting temperature for both natural colorants. Regarding the dyeing property of the fermented natural dye, silk was dyed quite darkly in an appearance by naked eye estimation and the K/S value in the color strength of silk reached a high level of 16 after the fermenting process. The washing fastness of dyed silk after treatment washing was reduced from 4 to under4 and indicates that dyed silk with fermented plant was not unsubstantial. The light fastness was 1 to 2, showing intended to maintain due to the fermentation process.