• 제목/요약/키워드: ripening period

검색결과 338건 처리시간 0.027초

2_Chloroethylphosphonic Acid가 잎담배 성숙에 미치는 영향 (Effects of 2-Chloroethylphosphnic Acid on Ripening of Tobacco Leaves)

  • 허일;구한서
    • 한국작물학회지
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    • 제12권
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    • pp.71-75
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    • 1972
  • 본 실험은 성숙촉진제 C.E.P.A(2-chloroethyl phosphonic acid)를 처리하여 잎담배 성숙촉진 여부와 나아가서 수량 및 품질에 미치는 영향을 검토코저 1970-1971년 양년에 걸쳐 소사시험장 및 산지적응시험을 시도한 바 그 결과를 요약하면 다음과 같다. 1. 농도가 높을수록 잎담배 성숙을 촉진시키는 정도가 현저하며 그 효과는 처리후 3-4일부터 나타났다. 2. 열 표면에만 처리해도 효과가 있었으며 성숙촉진 효과는 처리 부분에만 뚜렷하였다. 3. C.E.P.A 처리 효과는 성숙기에 가까운 하위엽에서 뚜렷했고 상위엽에서는 완만하였고 성숙 정도에 따라 차이가 현저하였다. 4. C.E.P.A는 농도가 높을수록 성숙충족효과는 크지마는 900ppm 이상이 되면 잎의 신전율이 떨어져서 약간이나마 감수가 되며 3,000ppm에서는 약 9%의 수량 감을 가져 오므로 적정농도는 900ppm으로 볼 수 있다. 5. C.E.P.A의 성숙충족 일수를 보면 100ppm에서 1일, 300ppm 3일, 450ppm 3일, 900ppm 4일, 3000ppm에서 약 7일간 단축시킬 수가 있었다. 6. 건조 경과를 보면 C.E.P.A처리구는 무처리에 비하여 시간으로 약 29%의 건조시간과 45%의 연료를 절감할 수 있는 가능성이 엿보인다. 7. 그러므로 잎담배 재배에 있어 C.E.P.A를 적정농도(900ppm)로 처리하면 수량의 감소를 가져 오지 않으면서 품질에서 13.5% 수납대금에서 12%의 소득을 증대시킬 수 있으며 부수적인 효과로서 3,000ppm에 약 7일, 건조시간에서 약24시간을 단축시킬 수 있다고 본다.

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Quality Characteristics, Changes in Physiochemical Properties and Functional Properties of Camembert Cheese Containing Red Ginseng Powder

  • Lee, Jai-Sung;Bae, Inhyu
    • 한국축산식품학회지
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    • 제38권1호
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    • pp.64-77
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    • 2018
  • Effects of quality, physicochemical properties and antioxidants in Camembert cheese added with red ginseng powder (RGP) were investigated. Cheese samples were prepared with 0.05%, 0.10%, 0.15% and 0.20% RGP. and then monitored during ripening at $14^{\circ}C$ for 28 d. The pH of the RGP amended treatment groups increased during the ripening period relative to the control (p<0.05). Moreover, the 1,2-Diphenyl-1-picrylhydrazyle (DPPH) was highest in the 0.15% RGP group from 21 d to 28 d. $ABTS^+$ radical scavenging activity was increased just like DPPH as the ripening period passed, 0.10% treatment was highest at from 7 d to 21 d. 0.15% RGP was contents of ginsenosides : 10,999.7 ppm. The Free fatty acids (FFA), controls with 0.15% treatment, while the total fat (TF) and monounsaturated fat (MuSF) were higher in the control than the 0.15% RGP group (p<0.05). The total free amino acid (FAA) was increased in the control, and 0.15% RGP, and control was highest at then 0.15% RGP. The samples had average contents of fat and protein were 29% and 18-20% respectively. Additionally, the $L^*$ value decreased, while the $a^*$ and $b^*$ values increased as the amount of RGP added increased. Sensory evaluation revealed that texture and total acceptability were higher in the control group at 12 d. Although the addition of RGP did not exert a better effect on the ripening of the camembert cheese, but the ripening grade was similar to that of the common camembert cheese, and the additional function of the cheese was reinforced. Functional cheese could be developed.

교동학교(喬棟鄕校)의 건축적 특성과 봉안형식에 관한 연구 - 초기형 향교의 특성규명을 위한 사례연구 - (A Study on the Architectural Characteristics and the Ritural Form of Kyodong-Hyangkyo)

  • 김은중
    • 건축역사연구
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    • 제7권4호
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    • pp.93-102
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    • 1998
  • There are several treatises about architectural characteristics of Hyangkyo. But those treatises usually treat with the types of site plans or structural characteristics without the historic background. So there needs the approaching methods with the historic background to study about the architecture of Hyangky. This study aims at the sample research about the architecture of Hyangkyo in beginnig period. Kyodong hyangkyo is the first building in hyangkyo. There are some architectural characteristics in this building comparing with the Hyangkyo in ripening period. Such characteristics apper in the site plan of educational spaces and in the floor plans of Myongryundang, Dongjae, Seojae. And there appear some characteristecs in ritual spaces such as the architectural structure of Daesungjun, and the position of stone establishment (Kwansedae, Saengdan) The ritual form of Kyodong hyangkyo has no special characteristics compering with the Hyangkyo in ripening period. These rictual form has kept the general rule of ritura form through the history.

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후숙조건에 따른 단호박 '보짱'의 품질특성 (Effect of Ripening Conditions on Quality of Winter Squash 'Bochang')

  • 박도수;시멜레스;현재영;권혜순;정천순
    • 한국식품과학회지
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    • 제48권2호
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    • pp.142-146
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    • 2016
  • 본 연구는 단호박 유통을 위한 최적 후숙 조건을 구명하기 위해 수행하였다. 가용성고형물 함량은 수확 직후 $6.0^{\circ}Bx$에서 후숙 기간이 길어짐에 따라 증가하였다. 후숙 온도가 높을수록 가용성 고형물 함량이 높게 나타났다. 과피 및 과육의 색차변화는 Hunter 'b'값을 측정한 결과 과피는 수확 직후 2.42에서 후숙기간 동안 증가하여 후숙 18일 $25^{\circ}C$ 조건은 6.91, $30^{\circ}C$ 조건은 7.56으로 나타났다. $35^{\circ}C$의 경우 후숙 9일 7.79로 과피 황화현상이 발생하여 외관품질이 저하되었다. 녹말함량은 후숙 온도가 높을수록 낮은 함량을 보였다. 자당 함량은 후숙 기간이 길어질수록 모든 온도조건에서 증가하였다. 이상의 결과를 종합하면 $25^{\circ}C$ 조건에서는 18-21일, $30^{\circ}C$는 12-15일간 후숙이 적합하다고 판단된다.

Changes in Polygalacturonase and Ethylene Biosynthesis of Three Varieties of Apple During Fruit Ripening

  • Kim, Se Hee;Han, Sang Eun;Lee, Hye Eun;Cho, Mi-Ae;Shin, Il Sheob;Kim, Jeong-Hee;Cho, Kang-Hee;Kim, Dae-Hyun;Hwang, Jeong Hwan
    • 한국육종학회지
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    • 제42권5호
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    • pp.481-487
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    • 2010
  • The ripening behavior of three apple cultivars, 'Tsugaru', 'Hongro' and 'Fuji' was distinctive and the involvement of POLYGALACTURONASE(PG) in the fruit softening process was confirmed to be ethylene dependent. Fruit softening is genetically coordinated by the action of several cell wall enzymes, including PG which depolymerizes cell wall pectin. Also, loss of firmness is associated with increasing of the ripening hormone, ethylene. In this work, climacteric ripening of three apple cultivars, Tsugaru, Hongro and Fuji, producing different ethylene levels and ripening responses, was examined. Correspondingly in Fuji, a linear and basal ethylene level was observed over the entire period of measurements, and Tsugaru and Hongro displayed a typical climacteric rise in ethylene production. Transcript accumulation of genes involved in ethylene biosynthesis (MdACS3 and MdACO1) and MdPG1 was studied in Tsugaru, Hongro and Fuji cultivars. Expression of MdACO1 transcripts was shown in all three ripened apple fruits. However, the MdACS3 and MdPG1 were transcribed differently in these cultivars. Comparing the MdPG1 of 'Tsugaru', 'Hongro' and 'Fuji', structural difference was discovered by genomic Southern analysis. Overall results pointed out that MdACS3 and MdPG1 play an important role in regulation of fruit ripening in apple cultivar.

The Effects of Grape Seed Flour on the Quality of Turkish Dry Fermented Sausage (Sucuk) during Ripening and Refrigerated Storage

  • Kurt, Sukru
    • 한국축산식품학회지
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    • 제36권3호
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    • pp.300-308
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    • 2016
  • In this study, the effects of grape seed flour on the physical-chemical properties, microbiological and sensory properties of Turkish dry fermented sausage, sucuk, was investigated. After the sausages produced with beef, beef fat, sheep tail fat and spices, they were ripened for 14 d. Then they were vacuum-packaged and stored for 80 d at 4℃. The effects of grape seed flour (GSF; 0%, 0.75%, 1.5%, 3%) on the physical-chemical properties (pH, moisture, fat, protein, free fatty acids, thiobarbituric acids, diameter reduction, ripening yield, instrumental colour), microbiological properties (total aerobic mesophilic and lactic acid bacteria, Enterobacteriaceae, mould and yeast) and sensory properties of the sausages were investigated. Grape seed flour decreased moisture, TBA, diameter reduction, instrumental colour (a, b) values and sensory analysis scores during the ripening period; it also decreased TBA, instrumental colour (L, a, b) values, total aerobic mesophilic and lactic acid bacteria counts during the storage period. It was concluded that grape seed flour has a potential application as an additive in dry fermented sausages.

Effect of Different Pediococcus pentosaceus and Lactobacillus plantarum Strains on Quality Characteristics of Dry Fermented Sausage after Completion of Ripening Period

  • Seleshe, Semeneh;Kang, Suk Nam
    • 한국축산식품학회지
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    • 제41권4호
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    • pp.636-649
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    • 2021
  • The aim of this study was to evaluate the effect of three different strains of lactic acid bacteria (LAB) starter cultures: Pediococcus pentosaceus (KC-13100) (PP), Lactobacillus plantarum (KCTC-21004) (LP1), and L. plantarum (KCTC-13093) (LP2) on the physicochemical and microbiological characteristics, and sensory quality of dry fermented sausages after 21 days of drying and ripening period. Treatments added with PP and LP2 strains showed a significant higher (p<0.05) LAB and total plat counts, and water activity (aw) of all three treatments was below 0.85 after the completion of the ripening process. A significant variation (p<0.05) in pH values of treatments was exhibited due to the difference in acidification capacity of the LAB strains: LP2PP>LP2. Substantial variations (p<0.05) in shear force values were detected amongst three batches (LP2>LP1>PP). In sensory attributes, PP treated samples had significantly higher (p<0.05) color and overall acceptability scores. The current findings proved how important the optimal assortment of starter culture. Inoculation with PP produced importantly beneficial effects on sensory quality improvement of dry fermented sausage.

등숙시기를 달리한 경우 Japonica 품종과 Indica ${\times}$ Japonica 품종의 광합성능력과 등숙과의 관계 - 실험 II. 등숙기간중 온도가 광합성능력과 등숙에 미치는 영향 (Relationship between the Photosynthetic Ability and Grain Filling of Japonica and Indica ${\times}$ Japonica Rice Varieties under Different Ripening Climates. Experiment II. Effects of air temperature on Photosynthetic Ability and Grain filling during Ripening period)

  • 권용웅;이석영
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 1986년도 춘계 학술대회지
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    • pp.24-25
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    • 1986
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Transcript Analysis of Wheat WAS-2 Gene Family under High Temperature Stress during Ripening Period

  • Ko, Chan Seop;Kim, Jin-Baek;Hong, Min Jeong;Kim, Kyeong Hoon;Seo, Yong Weon
    • Plant Breeding and Biotechnology
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    • 제6권4호
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    • pp.363-380
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    • 2018
  • Wheat is frequently exposed to high temperature during anthesis and ripening period, which resulted in yield loss and detrimental end-use-quality. The transcriptome analysis of wheat under high temperature stress during the early stage of the grain filling period was undertaken. Three expression patterns of differentially expressed genes (DEGs) during grain filling period were identified. The DEGs of seed storage protein and starch-branching enzyme showed continuous increases in their expressions during high temperature stress, as well as during the recovery period. The activities of the enzymes responsible for the elimination of antioxidants were significantly affected by exposure to high temperature stress. Only the WAS-2 family genes showed increased transcription levels under high temperature stress in dehulled spikelets. The relative transcription levels for sub-genome specific WAS-2 genes suggested that WAS-2 genes reacted with over-expression under high temperature stress and decreased back to normal expression during recovery. We propose the role of WAS-2 as a protective mechanism during the stage of grain development under high temperature in spikelets.

초기 숙성 조건을 달리한 배추김치의 저장기간에 따른 품질 특성 비교 (Comparison of the Quality Characteristics of Kimchi with Initial Auto-aging Condition During Storage)

  • 박혜린;오지은;조미숙
    • 한국콘텐츠학회논문지
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    • 제19권6호
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    • pp.160-167
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    • 2019
  • 본 연구는 김치 냉장고 내에서 초기 숙성 조건을 달리한 배추김치의 저장기간에 따른 이화학적 품질특성과 소비자 기호도를 측정하여 김치냉장고의 발효 시스템 개발을 위한 기초자료로 사용하고자 진행되었다. 저장 기간이 증가함에 따라 모든 시료는 경도가 감소하였다. 젖산은 저장 2주차에는 급격히 증가하여 저장 기간 내 많은 함량을 보였다. 하지만 $-1.3^{\circ}C$에서 바로 저장한 시료는 타 시료에 비해 낮은 젖산 값을 보였다. 저장기간에 따른 젖산균의 함량은 초기 4.50 logCFU/mL에서 6.70~7.47 logCFU/mL까지 증가하였다가 5.08~6.10 logCFU/mL의 값까지 감소하였다. 소비자 기호도 평가 결과, 저장 6주차까지 초기 숙성을 거친 세 시료들의 전반적 기호도, 전반적인 맛에서 높은 기호도를 보였다. 초기 숙성 없이 바로 저장한 시료는 4주차까지 낮은 전반 기호도를 보였다. 따라서 초기 숙성 조건은 저장기간 동안의 김치의 맛과 발효 정도에 영향을 미치는 것을 알 수 있다.