• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2010년도 추계학술대회 논문집
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• pp.425-426
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• 2010

• 한국동물학회:학술대회논문집
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• 한국동물학회 1999년도 한국생물과학협회 학술발표대회
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• pp.51.1-51
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• 1999

No Abstract, See Full Text

• 한국환경과학회지
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• 제17권11호
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• pp.1227-1233
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• 2008

The effect of freeze drying and fixatives in post-treating freeze drying on the morphological properties of the rose (Rosa hybrida L.) petal were investigated for the production of high quality of freeze dried rose. The morphology including form and color of the dried flowers of cut rose were depended on the drying methods. The drying time was extended due to their density and water content, and was shorter in the freeze drying than that in the natural and hot air drying. Freeze dried process for dried flowers took 2 days in a freeze dryer and did not cause shrinkage or toughening of rose petal being dried, preserving its natural shape and color. The diameter of freeze dried flowers showed little reduction compared to fresh flowers. In Hunter color values of petals of freeze dried flowers, L and a values were high and showed little variations in comparison to fresh petals. Freeze drying led to a noticeable increase in anthocyanin contents in petals, suggesting that anthocyanin contents play an important role in the acquisition of freezing tolerance. Exposure of flowers to freeze drying was accompanied by an increase in the carotenoid content. In the post-treating freeze drying, epoxy resin, a fixative, applied alone or in combination to petals of freeze dried flowers showed efficient coating for the protection from humidity and sunlight. Combined application of epoxy and acetone to freeze dried petals permitted maintenance of natural color and excellent tissue morphology, showing color stability and shiny texture in surface of petals. These findings suggest that application of fixatives to freeze dried rose petals improves the floral preservation and epoxy coating provides good quality in the freeze dried flower product.

• 한국작물학회지
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• 제51권3호
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• pp.215-219
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• 2006

작약의 이용성을 높이기 위해 작약의 종 및 품종, 생육시기, 식물체 부위별 성분의 함량 분포와 변화를 HPLC를 이 용하여 분석한 결과를 요약하면 다음과 같다. 작약의 종 및 품종간 성분의 함량 분포는 야생작약(P. japonica M., P. obovata M., P. anomala L.) 보다는 재배작약(태백작약, 의성작약)에서 전반적으로 함량이 더 높았고, 성분별 분포는 paeonifloin, methyl gallate, astragalin, kaempferol 순으로 높았으며 methyl gallate 는 의성작약에서 0.45%로 가장 높았다. 식물체 부위별 함량 분포는 methyl gallate는 꽃잎에서 1.79%로 가장 높았으며 잎에는 0.56% 함유하였고, 뿌리에는 0.01%로서 소량 분포하였다. Astragalin 은 꽃잎과 잎에서 높았고, 작약의 지표 성분인 paeoniflorin 은 뿌리에서 2.52%로 가장 높았으며 잎에도 1.09%나 함유하여 이용 가치가 매우 높다고 사료된다. 생육시기별 함량 분포는 생육초기인 4월에 가장 높았고 생육 후기로 갈수록 감소하는 경향이므로 잎과 줄기를 이용하려면 뿌리 수확직전인 $8{\sim}9$월이 적기라고 생각된다.

• The Plant Pathology Journal
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• 제32권2호
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• pp.77-84
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• 2016

X-ray irradiation with convergent chemicals such as nano-silver particles or sodium dichloroisocyanurate (NaDCC) has been used to control leaf blight on cut lilies. The oriental hybrid lily cultivars Siberia, Le Reve, and Sorbonne were irradiated five times by 200 Gy of X-rays in 2014. In 2015, Siberia and Sorbonne were irradiated three times by 150 Gy of X-rays. After artificial infection with Botrytis elliptica on the leaves and petals of cut lilies, this study used convergent chemical X-ray irradiation of 200 Gy or 150 Gy. Leaf and petal blight was measured in terms of incidence and severity at 8 days after infection using total 552 cuttings. Results indicate that the treatments of X-ray irradiation and NaDCC in 2014 and 2015 slightly decreased the severity of petal blight on Siberia and Sorbonne. However, the results were not significant and severity did not decrease as NaDCC concentration increased. Vase-life was observed separately after X-ray irradiation of 270 cut lilies in 2014 and 108 cut lilies in 2015. Chlorophyll content was not affected by either 200 Gy or 150 Gy of X-rays. The number of days of fully opened flowers at Siberia of 150 Gy and Le Revu of 200 Gy increased by 1-2 days. In addition, the relative fresh weights of the X-rayed flowers were 10% drier than the non-irradiated controls. Overall, leaf blight control by X-ray was inferior to the control by gamma rays, and petal color was bleached in Sorbonne and Le Reve cvs. by 150 Gy of X-rays.

• 한국자원식물학회지
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• 제19권3호
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• pp.427-431
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• 2006

In vitro high-frequency plant regeneration of Muscari comosum var. plumosum through somatic embryogenesis was obtained via two developmental pathways: direct embryos and multiple shoots regenerated from embryogenic callus. Flower bud with pedicel, receptacle, petal and ovary wall, floral stalk and leaf as explants were cultured in MS medium supplemented with various plant growth regulators. Embryos formed directly from pedicel, receptacle and floral stalk. Depending on explant sources, the optimal medium was MS medium supplemented with 0.2 mg/L IBA and 0.3 mg/L BA, 3.0 mg/L IBA and 3.0 mg/L BA, and MS-free medium for pedicel, receptacle, and floral stalk, respectively. Multiple shoots regenerated from embryogenic cal]i which was initiated from petal, ovary and leaf were observed in MS medium with different concentrations and combinations of hormone. The most suitable medium for each type of explant was 3.0 mg/L IBA and 3.0 mg/L BA(petal and ovary) and 5.0 mg/L IBA and 5.0 mg/L BA (leaf) Furthermore, the combination of 0.1 mg/L 2,4-D and 1.0 mg/L BA was also good for all sources of explants not only for direct embryo formation, but also, for embryogenic callus induction.

• 한국축산식품학회지
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• 제41권1호
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• pp.122-134
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• 2021

Recently, yogurt has been extensively studied to further enhance its functions using edible plant extracts. This study was conducted to investigate whether safflower petal (SP) as a natural food additive can be used to develop functional yogurt with improved health benefits. SPs were extracted with ethanol (SPE) and hot water (SPW), and then safflower yogurt was prepared by adding 0%-1.0% of those extracts to plain yogurt. With an increase in the fermentation duration, the pH of SPE and SPW yogurt samples was decreased, whereas titratable acidity and microbial counts were increased. The concentration of total polyphenols and total flavonoids, the activity of antioxidants, and the inhibitory effect on reactive oxygen species (ROS) were higher in SPW yogurt than SPE yogurt. Furthermore, α-glucosidase and lipase activity inhibitory effects of SPW yogurt were higher than those of SPE yogurt. In particular, free radical-scavenging activities, ROS inhibitory effect, and α-glucosidase activity inhibitory effects were significantly increased in SPW yogurt in a dose-dependent manner. Overall, these results suggest that SP extract possesses antioxidant activities and that it can downregulate α-glucosidase and lipase activities. The SP extract may have potential benefits as a natural food additive for the development of functional yogurt.

• 한국식품저장유통학회지
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• 제14권2호
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• pp.148-153
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• 2007

감 꽃잎과 꽃받침의 이용가능성을 검토하고자, 꽃잎과 꽃받침의 화학성분 분석과 이들을 스팀처리 후 건조(열풍, 동결), 분쇄하여 제조한 분말의 열수 침출차의 품질특성을 조사하였다. 꽃잎과 꽃받침의 수분, 조단백질, 조지방 및 탄수화물 함량은 유의적인 차이가 없이 평균적으로 84.8%, 0.4%, 0.3%, 13.7%를 각각 나타내었으나, 조회분 함량은 유의적인 차이를 보이며 0.5%와 1.1%를 각각 나타내었다. 꽃잎과 꽃받침의 비타민 C 함량은 192.3mg%와 392.7mg%, 플라보노이드 함량은 88.4mg%와 355.2mg%, 카로테노이드 함량은 0.8mg%와 3.8mg%를 각각 나타내었다. 침출차의 품질특성 분석결과, 꽃잎의 건조방법은 침출차의 가용성 고형물, 가용성 탄닌, DPPH유리기 소거능 등에는 영향을 미치지 않으며, 꽃잎보다는 꽃받침 침출차가 낮은 pH와 높은 L값, -a값, 가용성 탄닌, DPPH유리기 소거능을 가지는 것으로 나타났다. 꽃잎 침출차가 꽃받침 침출차보다 fructose와 glucose는 높았으나 sucrose는 낮았으며, 꽃잎의 경우는 열풍건조보다는 동결건조품이 유의적으로 높은 함량을 나타내었다. 침출차의 유기산은 citric acid, oxalic acid, malic acid 순으로 함유되어 있었으며, 각 성분함량은 꽃받침이 꽃잎보다 높은 경향이었으며, 꽃잎은 동결건조보다 열풍건조품에서 다소 높게 나타났다. 침출차의 관능검사 결과, aroma, taste 및 overall acceptability 등이 시료별 유의적인 차이가 없이 '좋지도 싫지도 않다' 정도로 평가되었다. 이로써 감 꽃잎과 꽃받침은 식품소재로서의 가치를 지니며 음용차로의 제조 가능성이 있는 것으로 판단된다.

• 생물환경조절학회지
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• 제15권4호
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• pp.406-411
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• 2006

뉴기니아 봉선화(Impatiens hawkeri)는 광조건에 따라 생리적 반응이 매우 민감한 것으로 알려져 있다. 이러한 현상 때문에 신품종 보호 재배심사(DUS test)시 나타나는 여러 증상들이 유전적인 요인에 의한 것인지 혹은 생리적 증상인지를 판단하는데 어려움이 따른다. 이러한 어려움을 극복하기 위하여 뉴기니아 봉선화 'Fishlimp 149'를 비가림 하우스에 정식하고 광도조건에 따른 생육 및 화색발현을 구명하기 위하여 몇 가지 광도조건의 처리를 하였다. 실험결과 대조구 ($1,010{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$)에 비해 차광 1($599{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$) 및 차광 2($88{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$) 처리구에서 초장, 초폭, 잎 크기 및 소화경 등이 현저히 증가되었다. 그러나 가장 광도가 낮은 차광 3($30{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$)에서는 오히려 이들이 대조구에 비해 감소되었다. 개화특성 조사에서는 차광 1처리가 화경, 상부 꽃잎폭, 측면 꽃잎폭, 하부 꽃잎길이 등에서 가장 좋은 결과를 보였다. 안토시아닌 함량의 경우 줄기, 잎 및 소화경에서는 차광에 의해 감소되었으나 소화경의 경우 차광 1처리에서 가장 높은 결과를 보였다. 이상의 결과를 종합해 볼 때, 차광 1처리가 뉴기니아 봉선화의 생장특성을 조사하는데 가장 적절한 것으로 판단되며, 생육과정 중 나타나는 안토시아닌 축적은 유전적인 요인이 아닌 환경적인 요인에 의한 생리적인 현상인 것으로 생각된다.

• 한국식물생명공학회:학술대회논문집
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• 한국식물생명공학회 2005년도 추계학술대회 및 한일 식물생명공학 심포지엄
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• pp.409-409
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• 2005